[K/N][Tests] Adjust moved codegen tests to new infra

^KT-61259

native/native.tests/testData/codegen/annotations/annotations0.kt

@@ -5,23 +5,18 @@
 
 // FILE: 1.kt
 
-package codegen.annotations.annotations0
-
 import kotlin.test.*
-import kotlinx.serialization.*
 
 @SerialInfo
 annotation class Foo(val x: Int, val y: String)
 
-@Test fun runTest() {
-    val foo = @Suppress("ANNOTATION_CLASS_CONSTRUCTOR_CALL") Foo(42, "17")
+fun box(): String {
+    val foo = @Suppress("ANNOTATION_CLASS_CONSTRUCTOR_CALL") Foo(42, "OK")
     assertEquals(foo.x, 42)
-    assertEquals(foo.y, "17")
+    return foo.y
 }
 
 // FILE: 2.kt
 
-package kotlinx.serialization
-
 @Target(AnnotationTarget.ANNOTATION_CLASS)
 annotation class SerialInfo

native/native.tests/testData/codegen/arithmetic/basic.kt

@@ -1,96 +0,0 @@
-package codegen.arithmetic.basic
-
-import kotlin.test.*
-
-// Check that compiler doesn't optimize it to `true`
-fun selfCmp1(x: Int) = x + 1 > x
-
-fun selfCmp2(x: Int) = x - 1 < x
-
-@Test
-fun selfComparison() {
-    assertFalse(selfCmp1(Int.MAX_VALUE))
-    assertFalse(selfCmp2(Int.MIN_VALUE))
-}
-
-private fun charCornersMinus(): Int {
-    val a: Char = 0xFFFF.toChar()
-    val b: Char = 0.toChar()
-    return a - b
-}
-
-private fun charCornersComparison(): Boolean {
-    val a = 0xFFFF.toChar()
-    val b = 0.toChar()
-    return a < b
-}
-
-@Test
-fun charCornerCases() {
-    assertEquals(65535, charCornersMinus())
-    assertFalse(charCornersComparison())
-}
-
-@Test
-fun shifts() {
-    assertEquals(-2147483648, 1 shl -1)
-    assertEquals(0, 1 shr -1)
-    assertEquals(1, 1 shl 32)
-    assertEquals(1073741823, -1 ushr 2)
-    assertEquals(-1, -1 shr 2)
-}
-
-@Test
-@kotlin.ExperimentalUnsignedTypes
-fun uintTests() {
-    assertEquals(UInt.MAX_VALUE, UInt.MIN_VALUE - 1u)
-}
-
-@Test
-fun charConversions() {
-    assertEquals(97.0, 'a'.toDouble())
-    assertEquals(-1, Char.MAX_VALUE.toShort())
-    assertEquals(32768, Short.MIN_VALUE.toChar().toInt())
-    assertEquals(-1, Char.MAX_VALUE.toByte())
-    assertEquals(65408, Byte.MIN_VALUE.toChar().toInt())
-    assertEquals(0, Float.MIN_VALUE.toChar().toInt())
-}
-
-@Test
-fun doubleBasic() {
-    assertEquals(1, 0f.compareTo(-0f))
-    assertEquals(1, 0.0.compareTo(-0.0))
-
-    assertEquals(1.0, Double.fromBits(1.0.toBits()))
-    assertEquals(1.0f, Float.fromBits(1.0f.toBits()))
-
-    assertEquals(Double.NaN, Double.fromBits((0 / 0.0).toBits()))
-    assertEquals(Float.NaN, Float.fromBits((0 / 0f).toBits()))
-}
-
-@Test
-fun integralToFloat() {
-    assertEquals(9.223372E18f, Long.MAX_VALUE.toFloat())
-    assertEquals(-9.223372E18f, Long.MIN_VALUE.toFloat())
-
-    assertEquals(-2.147483648E9, Int.MIN_VALUE.toDouble())
-    assertEquals(2.147483647E9, Int.MAX_VALUE.toDouble())
-
-    assertEquals(2147483647, Double.MAX_VALUE.toInt())
-    assertEquals(0, Float.MIN_VALUE.toLong())
-
-    assertEquals(9223372036854775807, Float.MAX_VALUE.toLong())
-    assertEquals(0, Double.MIN_VALUE.toInt())
-}
-
-@Test
-fun compareIntToFloat() {
-    assertEquals(1, 0.compareTo(-0.0f))
-    assertEquals(0, 0.compareTo(+0.0f))
-}
-
-@Test
-fun testKt37412() {
-    val two = 2.0
-    assertEquals(2, two.toInt())
-}

native/native.tests/testData/codegen/arithmetic/basic_charConversions.kt

@@ -0,0 +1,12 @@
+import kotlin.test.*
+
+fun box(): String {
+    assertEquals(97.0, 'a'.toDouble())
+    assertEquals(-1, Char.MAX_VALUE.toShort())
+    assertEquals(32768, Short.MIN_VALUE.toChar().toInt())
+    assertEquals(-1, Char.MAX_VALUE.toByte())
+    assertEquals(65408, Byte.MIN_VALUE.toChar().toInt())
+    assertEquals(0, Float.MIN_VALUE.toChar().toInt())
+
+    return "OK"
+}

native/native.tests/testData/codegen/arithmetic/basic_charCornerCases.kt

@@ -0,0 +1,20 @@
+import kotlin.test.*
+
+private fun charCornersMinus(): Int {
+    val a: Char = 0xFFFF.toChar()
+    val b: Char = 0.toChar()
+    return a - b
+}
+
+private fun charCornersComparison(): Boolean {
+    val a = 0xFFFF.toChar()
+    val b = 0.toChar()
+    return a < b
+}
+
+fun box(): String {
+    assertEquals(65535, charCornersMinus())
+    assertFalse(charCornersComparison())
+
+    return "OK"
+}

native/native.tests/testData/codegen/arithmetic/basic_compareIntToFloat.kt

@@ -0,0 +1,8 @@
+import kotlin.test.*
+
+fun box(): String {
+    assertEquals(1, 0.compareTo(-0.0f))
+    assertEquals(0, 0.compareTo(+0.0f))
+
+    return "OK"
+}

native/native.tests/testData/codegen/arithmetic/basic_doubleBasic.kt

@@ -0,0 +1,14 @@
+import kotlin.test.*
+
+fun box(): String {
+    assertEquals(1, 0f.compareTo(-0f))
+    assertEquals(1, 0.0.compareTo(-0.0))
+
+    assertEquals(1.0, Double.fromBits(1.0.toBits()))
+    assertEquals(1.0f, Float.fromBits(1.0f.toBits()))
+
+    assertEquals(Double.NaN, Double.fromBits((0 / 0.0).toBits()))
+    assertEquals(Float.NaN, Float.fromBits((0 / 0f).toBits()))
+
+    return "OK"
+}

native/native.tests/testData/codegen/arithmetic/basic_integralToFloat.kt

@@ -0,0 +1,17 @@
+import kotlin.test.*
+
+fun box(): String {
+    assertEquals(9.223372E18f, Long.MAX_VALUE.toFloat())
+    assertEquals(-9.223372E18f, Long.MIN_VALUE.toFloat())
+
+    assertEquals(-2.147483648E9, Int.MIN_VALUE.toDouble())
+    assertEquals(2.147483647E9, Int.MAX_VALUE.toDouble())
+
+    assertEquals(2147483647, Double.MAX_VALUE.toInt())
+    assertEquals(0, Float.MIN_VALUE.toLong())
+
+    assertEquals(9223372036854775807, Float.MAX_VALUE.toLong())
+    assertEquals(0, Double.MIN_VALUE.toInt())
+
+    return "OK"
+}

native/native.tests/testData/codegen/arithmetic/basic_kt37412.kt

@@ -0,0 +1,8 @@
+import kotlin.test.*
+
+fun box(): String {
+    val two = 2.0
+    assertEquals(2, two.toInt())
+
+    return "OK"
+}

native/native.tests/testData/codegen/arithmetic/basic_selfComparison.kt

@@ -0,0 +1,13 @@
+import kotlin.test.*
+
+// Check that compiler doesn't optimize it to `true`
+fun selfCmp1(x: Int) = x + 1 > x
+
+fun selfCmp2(x: Int) = x - 1 < x
+
+fun box(): String {
+    assertFalse(selfCmp1(Int.MAX_VALUE))
+    assertFalse(selfCmp2(Int.MIN_VALUE))
+
+    return "OK"
+}

native/native.tests/testData/codegen/arithmetic/basic_shifts.kt

@@ -0,0 +1,11 @@
+import kotlin.test.*
+
+fun box(): String {
+    assertEquals(-2147483648, 1 shl -1)
+    assertEquals(0, 1 shr -1)
+    assertEquals(1, 1 shl 32)
+    assertEquals(1073741823, -1 ushr 2)
+    assertEquals(-1, -1 shr 2)
+
+    return "OK"
+}

native/native.tests/testData/codegen/arithmetic/basic_uintTests.kt

@@ -0,0 +1,8 @@
+import kotlin.test.*
+
+@kotlin.ExperimentalUnsignedTypes
+fun box(): String {
+    assertEquals(UInt.MAX_VALUE, UInt.MIN_VALUE - 1u)
+
+    return "OK"
+}

native/native.tests/testData/codegen/arithmetic/division.kt

@@ -1,11 +1,10 @@
-package codegen.arithmetic.division
-
 import kotlin.test.*
 
-@Test
-fun divisionByZero() {
+fun box(): String {
     assertFailsWith(ArithmeticException::class, { 5 / 0 })
     assertFailsWith(ArithmeticException::class, { 5 % 0 })
     assertEquals(1, 5 / try { 0 / 0; 1 } catch (e: ArithmeticException) { 5 })
     assertEquals(Double.NaN, 0.0 / 0.0)
+
+    return "OK"
 }

native/native.tests/testData/codegen/arithmetic/github1856.kt

@@ -1,5 +1,3 @@
-package codegen.arithmetic.github1856
-
 import kotlin.test.*
 
 object RGBA {
@@ -18,9 +16,10 @@ object RGBA {
     }
 }
 
-@Test
-fun main() {
+fun box(): String {
     val source = listOf(0xFFFFFFFF.toInt(), 0xFFFFFF77.toInt(), 0x777777FF.toInt(), 0x77777777.toInt())
     val expect = listOf(-1, -137, 2000107383, 2000107319)
     assertEquals(expect, source.map { RGBA.premultiplyFastInt(it) })
+
+    return "OK"
 }

native/native.tests/testData/codegen/associatedObjects/associatedObjects1_testBasics1.kt

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+
+import kotlin.test.*
+import kotlin.reflect.*
+
+@OptIn(ExperimentalAssociatedObjects::class)
+fun box(): String {
+    assertSame(Bar, Foo::class.findAssociatedObject<Associated1>())
+    assertSame(Baz, Foo::class.findAssociatedObject<Associated2>())
+    assertSame(null, Foo::class.findAssociatedObject<Associated3>())
+
+    assertSame(null, Bar::class.findAssociatedObject<Associated1>())
+
+    return "OK"
+}
+
+@OptIn(ExperimentalAssociatedObjects::class)
+@AssociatedObjectKey
+@Retention(AnnotationRetention.BINARY)
+annotation class Associated1(val kClass: KClass<*>)
+
+@OptIn(ExperimentalAssociatedObjects::class)
+@AssociatedObjectKey
+@Retention(AnnotationRetention.BINARY)
+annotation class Associated2(val kClass: KClass<*>)
+
+@OptIn(ExperimentalAssociatedObjects::class)
+@AssociatedObjectKey
+@Retention(AnnotationRetention.BINARY)
+annotation class Associated3(val kClass: KClass<*>)
+
+@Associated1(Bar::class)
+@Associated2(Baz::class)
+class Foo
+
+object Bar
+object Baz
+

native/native.tests/testData/codegen/associatedObjects/associatedObjects1_testGlobalOptimizations1.kt

@@ -3,21 +3,9 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.associatedObjects.associatedObjects1
-
 import kotlin.test.*
 import kotlin.reflect.*
 
-@Test
-@OptIn(ExperimentalAssociatedObjects::class)
-fun testBasics1() {
-    assertSame(Bar, Foo::class.findAssociatedObject<Associated1>())
-    assertSame(Baz, Foo::class.findAssociatedObject<Associated2>())
-    assertSame(null, Foo::class.findAssociatedObject<Associated3>())
-
-    assertSame(null, Bar::class.findAssociatedObject<Associated1>())
-}
-
 @OptIn(ExperimentalAssociatedObjects::class)
 @AssociatedObjectKey
 @Retention(AnnotationRetention.BINARY)
@@ -33,21 +21,15 @@ annotation class Associated2(val kClass: KClass<*>)
 @Retention(AnnotationRetention.BINARY)
 annotation class Associated3(val kClass: KClass<*>)
 
-@Associated1(Bar::class)
-@Associated2(Baz::class)
-class Foo
-
-object Bar
-object Baz
-
-@Test
 @OptIn(ExperimentalAssociatedObjects::class)
-fun testGlobalOptimizations1() {
+fun box(): String {
     val i1 = I1ImplHolder::class.findAssociatedObject<Associated1>()!! as I1
     assertEquals(42, i1.foo())
     val c = C(null)
     i1.bar(c)
     assertEquals("zzz", c.list!![0])
+
+    return "OK"
 }
 
 private class C(var list: List<String>?)
@@ -66,21 +48,3 @@ private object I1Impl : I1 {
 
 @Associated1(I1Impl::class)
 private class I1ImplHolder
-
-@Test
-@OptIn(ExperimentalAssociatedObjects::class)
-fun testGlobalOptimizations2() {
-    val i2 = I2ImplHolder()::class.findAssociatedObject<Associated1>()!! as I2
-    assertEquals(17, i2.foo())
-}
-
-private interface I2 {
-    fun foo(): Int
-}
-
-private object I2Impl : I2 {
-    override fun foo() = 17
-}
-
-@Associated1(I2Impl::class)
-private class I2ImplHolder

native/native.tests/testData/codegen/associatedObjects/associatedObjects1_testGlobalOptimizations2.kt

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+
+import kotlin.test.*
+import kotlin.reflect.*
+
+@OptIn(ExperimentalAssociatedObjects::class)
+@AssociatedObjectKey
+@Retention(AnnotationRetention.BINARY)
+annotation class Associated1(val kClass: KClass<*>)
+
+@OptIn(ExperimentalAssociatedObjects::class)
+@AssociatedObjectKey
+@Retention(AnnotationRetention.BINARY)
+annotation class Associated2(val kClass: KClass<*>)
+
+@OptIn(ExperimentalAssociatedObjects::class)
+@AssociatedObjectKey
+@Retention(AnnotationRetention.BINARY)
+annotation class Associated3(val kClass: KClass<*>)
+
+@OptIn(ExperimentalAssociatedObjects::class)
+fun box(): String {
+    val i2 = I2ImplHolder()::class.findAssociatedObject<Associated1>()!! as I2
+    assertEquals(17, i2.foo())
+
+    return "OK"
+}
+
+private interface I2 {
+    fun foo(): Int
+}
+
+private object I2Impl : I2 {
+    override fun foo() = 17
+}
+
+@Associated1(I2Impl::class)
+private class I2ImplHolder

native/native.tests/testData/codegen/basics/array_to_any.kt

@@ -3,13 +3,12 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.array_to_any
-
 import kotlin.test.*
 
-@Test
-fun runTest() {
+fun box(): String {
     foo().hashCode()
+
+    return "OK"
 }
 
 fun foo(): Any {

native/native.tests/testData/codegen/basics/canonical_name.kt

@@ -3,10 +3,10 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.canonical_name
-
 import kotlin.test.*
 
+val sb = StringBuilder()
+
 interface I<U, T> {
   fun foo(a: U): T
   fun qux(a: T): U
@@ -20,8 +20,8 @@ class A2
 //-----------------------------------------------------------------------------//
 
 class A : I<A1, A2> {
-  override fun foo(a: A1): A2 { println("A:foo"); return A2() }
-  override fun qux(a: A2): A1 { println("A:qux"); return A1() }
+  override fun foo(a: A1): A2 { sb.appendLine("A:foo"); return A2() }
+  override fun qux(a: A2): A1 { sb.appendLine("A:qux"); return A1() }
 }
 
 //-----------------------------------------------------------------------------//
@@ -33,7 +33,9 @@ fun <U, V> baz(i: I<U, V>, u: U, v:V) {
 
 //-----------------------------------------------------------------------------//
 
-@Test
-fun runTest() {
+fun box(): String {
   baz<A1, A2>(A(), A1(), A2())
+
+  assertEquals("A:foo\nA:qux\n", sb.toString())
+  return "OK"
 }

native/native.tests/testData/codegen/basics/canonical_name.out

@@ -1,2 +0,0 @@
-A:foo
-A:qux

native/native.tests/testData/codegen/basics/cast_null.kt

@@ -3,12 +3,9 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.cast_null
-
 import kotlin.test.*
 
-@Test
-fun runTest() {
+fun box(): String {
     testCast(null, false)
     testCastToNullable(null, true)
     testCastToNullable(TestKlass(), true)
@@ -16,14 +13,14 @@ fun runTest() {
     testCastNotNullableToNullable(TestKlass(), true)
     testCastNotNullableToNullable("", false)
 
-    println("Ok")
+    return "OK"
 }
 
 class TestKlass
 
 fun ensure(b: Boolean) {
     if (!b) {
-        println("Error")
+        throw Error("Error")
     }
 }
 

native/native.tests/testData/codegen/basics/cast_null.out

@@ -1 +0,0 @@
-Ok

native/native.tests/testData/codegen/basics/cast_simple.kt

@@ -3,8 +3,6 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.cast_simple
-
 import kotlin.test.*
 
 open class A() {}
@@ -18,7 +16,8 @@ fun castTest(): Boolean {
   return true
 }
 
-@Test
-fun runTest() {
+fun box(): String {
   if (!castTest()) throw Error()
+
+  return "OK"
 }

native/native.tests/testData/codegen/basics/check_type.kt

@@ -2,9 +2,6 @@
  * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
  * that can be found in the LICENSE file.
  */
-
-package codegen.basics.check_type
-
 import kotlin.test.*
 
 interface I
@@ -37,12 +34,13 @@ fun isTypeOfInterface(a: Any) : Boolean {
 
 //-----------------------------------------------------------------------------//
 
-@Test
-fun runTest() {
-  println(isTypeOf(A()))
-  println(isTypeOf(null))
-  println(isTypeNullableOf(A()))
-  println(isTypeNullableOf(null))
-  println(isNotTypeOf(B()))
-  println(isTypeOfInterface(A()))
+fun box(): String {
+  if (!isTypeOf(A())) return "FAIL !isTypeOf(A())"
+  if (isTypeOf(null)) return "FAIL isTypeOf(null)"
+  if (!isTypeNullableOf(A())) return "FAIL !isTypeNullableOf(A())"
+  if (!isTypeNullableOf(null)) return "FAIL !isTypeNullableOf(null)"
+  if (!isNotTypeOf(B())) return "FAIL !isNotTypeOf(B())"
+  if (!isTypeOfInterface(A())) return "FAIL !isTypeOfInterface(A())"
+
+  return "OK"
 }

native/native.tests/testData/codegen/basics/check_type.out

@@ -1,6 +0,0 @@
-true
-false
-true
-true
-true
-true

native/native.tests/testData/codegen/basics/companion.kt

@@ -5,6 +5,8 @@
 
 class A {
   companion object {
-    fun foo() = "comp"
+    fun foo() = "OK"
   }
 }
+
+fun box() = A.foo()

native/native.tests/testData/codegen/basics/concatenation.kt

@@ -2,18 +2,19 @@
  * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
  * that can be found in the LICENSE file.
  */
-
-package codegen.basics.concatenation
+// OUTPUT_DATA_FILE: concatenation.out
 
 import kotlin.test.*
 
-@Test
-fun runTest() {
+fun box(): String {
     val s = "world"
     val i = 1
-    println("Hello $s $i ${2*i}")
+    val res1 = "Hello $s $i ${2 * i}"
+    if (res1 != "Hello world 1 2") return "FAIL 1: $res1"
 
-    for (item in listOf("a", "b")) {
-        println("Hello, $item")
-    }
+    val a = "a"
+    val res2 = "Hello, $a"
+    if (res2 != "Hello, a") return "FAIL 2: $res2"
+
+    return "OK"
 }

native/native.tests/testData/codegen/basics/concatenation.out

@@ -1,3 +0,0 @@
-Hello world 1 2
-Hello, a
-Hello, b

native/native.tests/testData/codegen/basics/const_infinity.kt

@@ -3,8 +3,6 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.const_infinity
-
 import kotlin.test.*
 
 //Original issue here https://youtrack.jetbrains.com/issue/KT-37212
@@ -13,9 +11,10 @@ const val fpInfConst = 1.0F / 0.0F
 @Suppress("DIVISION_BY_ZERO")
 val fpInfVal = 1.0F / 0.0F
 
-@Test
-fun runTest() {
+fun box(): String {
     assertEquals(fpInfConst, Float.POSITIVE_INFINITY)
     assertEquals(fpInfVal, Float.POSITIVE_INFINITY)
     assertEquals(fpInfConst, fpInfVal)
-}
+
+    return "OK"
+}

native/native.tests/testData/codegen/basics/expression_as_statement.kt

@@ -3,22 +3,18 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.expression_as_statement
-
 import kotlin.test.*
 
 fun foo() {
     Any() as String
 }
 
-@Test
-fun runTest() {
+fun box(): String {
     try {
         foo()
     } catch (e: Throwable) {
-        println("Ok")
-        return
+        return "OK"
     }
 
-    println("Fail")
+    return "Fail"
 }

native/native.tests/testData/codegen/basics/expression_as_statement.out

@@ -1 +0,0 @@
-Ok

native/native.tests/testData/codegen/basics/k42000_1.kt

@@ -1,10 +1,9 @@
-package codegen.basics.k42000_1
-
 import kotlin.test.*
 
-@Test
-fun runTest() {
+fun box(): String {
     assertTrue(Reproducer().repro() > 0)
+
+    return "OK"
 }
 
 // Based on https://youtrack.jetbrains.com/issue/KT-42000#focus=Comments-27-4404934.0-0

native/native.tests/testData/codegen/basics/k42000_2.kt

@@ -1,14 +1,13 @@
-package codegen.basics.k42000_2
-
 import kotlin.test.*
 
 // https://youtrack.jetbrains.com/issue/KT-42000
 
-@Test
-fun runTest() {
+fun box(): String {
     assertFailsWith<Error> {
         when (1) {
             else -> throw Error()
         } as String
     }
+
+    return "OK"
 }

native/native.tests/testData/codegen/basics/local_variable.kt

@@ -3,8 +3,6 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.local_variable
-
 import kotlin.test.*
 
 fun local_variable(a: Int) : Int {
@@ -13,7 +11,7 @@ fun local_variable(a: Int) : Int {
   return b
 }
 
-@Test
-fun runTest() {
+fun box(): String {
   if (local_variable(3) != 14) throw Error()
+  return "OK"
 }

native/native.tests/testData/codegen/basics/null_check.kt

@@ -3,8 +3,6 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.null_check
-
 import kotlin.test.*
 
 //--- Test "eqeq" -------------------------------------------------------------//
@@ -31,10 +29,11 @@ fun null_check_eqeqeq2() : Boolean {
   return check_eqeqeq(null)
 }
 
-@Test
-fun runTest() {
-  if (null_check_eqeq1())    throw Error()
-  if (!null_check_eqeq2())   throw Error()
-  if (null_check_eqeqeq1())  throw Error()
-  if (!null_check_eqeqeq2()) throw Error()
+fun box(): String {
+  if (null_check_eqeq1())    return "FAIL null_check_eqeq1()"
+  if (!null_check_eqeq2())   return "FAIL !null_check_eqeq2()"
+  if (null_check_eqeqeq1())  return "FAIL null_check_eqeqeq1()"
+  if (!null_check_eqeqeq2()) return "FAIL !null_check_eqeqeq2()"
+
+  return "OK"
 }

native/native.tests/testData/codegen/basics/safe_cast.kt

@@ -3,8 +3,6 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.safe_cast
-
 import kotlin.test.*
 
 open class A
@@ -23,10 +21,11 @@ fun safe_cast_negative(): Boolean {
   return foo(c) == null
 }
 
-@Test
-fun runTest() {
+fun box(): String {
   val safeCastPositive = safe_cast_positive().toString()
   val safeCastNegative = safe_cast_negative().toString()
-  println("safe_cast_positive: " + safeCastPositive)
-  println("safe_cast_negative: " + safeCastNegative)
+  if (safeCastPositive != "true") return "FAIL safeCastPositive"
+  if (safeCastNegative != "true") return "FAIL safeCastNegative"
+
+  return "OK"
 }

native/native.tests/testData/codegen/basics/safe_cast.out

@@ -1,2 +0,0 @@
-safe_cast_positive: true
-safe_cast_negative: true

native/native.tests/testData/codegen/basics/spread_operator_0.kt

@@ -3,16 +3,17 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.spread_operator_0
-
 import kotlin.test.*
 
-@Test
-fun runTest() {
+fun box(): String {
   val list0 = _arrayOf("K", "o", "t", "l", "i", "n")
   val list1 = _arrayOf("l", "a","n", "g", "u", "a", "g", "e")
   val list = foo(list0, list1)
-  println(list.toString())
+
+  val expected = listOf("K", "o", "t", "l", "i", "n", " ", "i", "s", " ", "c", "o", "o", "l", " ", "l", "a", "n", "g", "u", "a", "g", "e")
+  if (list != expected)
+    return "FAIL: $list"
+  return "OK"
 }
 
 

native/native.tests/testData/codegen/basics/spread_operator_0.out

@@ -1 +0,0 @@
-[K, o, t, l, i, n,  , i, s,  , c, o, o, l,  , l, a, n, g, u, a, g, e]

native/native.tests/testData/codegen/basics/superFunCall.kt

@@ -3,8 +3,6 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.superFunCall
-
 import kotlin.test.*
 
 open class C {
@@ -22,8 +20,11 @@ class C3: C2() {
     override fun f() = super<C2>.f() + "<fun:C3>"
 }
 
-@Test
-fun runTest() {
-    println(C1().f())
-    println(C3().f())
+fun box(): String {
+    val c1f = C1().f()
+    if (c1f != "<fun:C><fun:C1>") return "FAIL 1: $c1f"
+    val c3f = C3().f()
+    if (c3f != "<fun:C><fun:C3>") return "FAIL 2: $c3f"
+
+    return "OK"
 }

native/native.tests/testData/codegen/basics/superFunCall.out

@@ -1,2 +0,0 @@
-<fun:C><fun:C1>
-<fun:C><fun:C3>

native/native.tests/testData/codegen/basics/superGetterCall.kt

@@ -3,8 +3,6 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.superGetterCall
-
 import kotlin.test.*
 
 open class C {
@@ -22,8 +20,11 @@ class C3: C2() {
     override val p1 = super<C2>.p1 + "<prop:C3>"
 }
 
-@Test
-fun runTest() {
-    println(C1().p1)
-    println(C3().p1)
+fun box(): String {
+    val c1p1 = C1().p1
+    if (c1p1 != "<prop:C><prop:C1>") return "FAIL 1: $c1p1"
+    val c3p1 = C3().p1
+    if (c3p1 != "<prop:C><prop:C3>") return "FAIl 2: $c3p1"
+
+    return "OK"
 }

native/native.tests/testData/codegen/basics/superGetterCall.out

@@ -1,2 +0,0 @@
-<prop:C><prop:C1>
-<prop:C><prop:C3>

native/native.tests/testData/codegen/basics/superSetterCall.kt

@@ -3,8 +3,6 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.superSetterCall
-
 import kotlin.test.*
 
 open class C {
@@ -31,12 +29,15 @@ class C3: C2() {
         }
 }
 
-@Test
-fun runTest() {
+fun box(): String {
     val c1 = C1()
     val c3 = C3()
     c1.p2 = "zzz"
     c3.p2 = "zzz"
-    println(c1.p2)
-    println(c3.p2)
+    val c1p2 = c1.p2
+    if (c1p2 != "<prop:C1><prop:C>zzz") return "FAIL 1: "
+    val c3p2 = c3.p2
+    if (c3p2 != "<prop:C3><prop:C>zzz") return "FAIL 2: "
+
+    return "OK"
 }

native/native.tests/testData/codegen/basics/superSetterCall.out

@@ -1,2 +0,0 @@
-<prop:C1><prop:C>zzz
-<prop:C3><prop:C>zzz

native/native.tests/testData/codegen/basics/typealias1.kt

@@ -3,13 +3,12 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.typealias1
-
 import kotlin.test.*
 
-@Test
-fun runTest() {
-    println(Bar(42).x)
+fun box(): String {
+    val x = Bar(42).x
+    if (x != 42 ) return "FAIL: $x"
+        return "OK"
 }
 
 class Foo(val x: Int)

native/native.tests/testData/codegen/basics/typealias1.out

@@ -1 +0,0 @@
-42

native/native.tests/testData/codegen/basics/unchecked_cast1.kt

@@ -3,24 +3,26 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.unchecked_cast1
-
 import kotlin.test.*
 
-@Test
-fun runTest() {
+val sb = StringBuilder()
+
+fun box(): String {
     foo<String>("17")
     bar<String>("17")
     foo<String>(42)
     bar<String>(42)
+
+    assertEquals("17\n17\n42\n42\n", sb.toString())
+    return "OK"
 }
 
 fun <T> foo(x: Any?) {
     val y = x as T
-    println(y.toString())
+    sb.appendLine(y.toString())
 }
 
 fun <T> bar(x: Any?) {
     val y = x as? T
-    println(y.toString())
+    sb.appendLine(y.toString())
 }

native/native.tests/testData/codegen/basics/unchecked_cast1.out

@@ -1,4 +0,0 @@
-17
-17
-42
-42

native/native.tests/testData/codegen/basics/unchecked_cast2.kt

@@ -2,18 +2,16 @@
  * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
  * that can be found in the LICENSE file.
  */
-
-package codegen.basics.unchecked_cast2
+// IGNORE_BACKEND: NATIVE
 
 import kotlin.test.*
 
-@Test
-fun runTest() {
+fun box(): String {
     try {
         val x = cast<String>(Any())
-        println(x.length)
+        return "FAIL: ${x.length}"
     } catch (e: Throwable) {
-        println("Ok")
+        return "OK"
     }
 }
 

native/native.tests/testData/codegen/basics/unchecked_cast2.out

@@ -1 +0,0 @@
-Ok

native/native.tests/testData/codegen/basics/unchecked_cast3.kt

@@ -3,17 +3,14 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.unchecked_cast3
-
 import kotlin.test.*
 
-@Test
-fun runTest() {
+fun box(): String {
     testCast<TestKlass>(TestKlass(), true)
     testCast<TestKlass>(null, false)
     testCastToNullable<TestKlass>(null, true)
 
-    println("Ok")
+    return "OK"
 }
 
 class TestKlass

native/native.tests/testData/codegen/basics/unchecked_cast3.out

@@ -1 +0,0 @@
-Ok

native/native.tests/testData/codegen/basics/unchecked_cast4.kt

@@ -3,12 +3,9 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.unchecked_cast4
-
 import kotlin.test.*
 
-@Test
-fun runTest() {
+fun box(): String {
     CI1I2().uncheckedCast<CI1I2>()
     CI1I2().uncheckedCast<OtherCI1I2>()
 
@@ -16,7 +13,7 @@ fun runTest() {
         Any().uncheckedCast<CI1I2>()
     }
 
-    println("Ok")
+    return "OK"
 }
 
 fun <R : C> Any?.uncheckedCast() where R : I1, R : I2 {

native/native.tests/testData/codegen/basics/unchecked_cast4.out

@@ -1 +0,0 @@
-Ok

native/native.tests/testData/codegen/basics/unit1.kt

@@ -3,11 +3,8 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.unit1
-
-import kotlin.test.*
-
-@Test
-fun runTest() {
-    println(println("First").toString())
+fun box(): String {
+    val unit = println("First")
+    if (unit.toString() != "kotlin.Unit") return "FAIL 1: $unit"
+    return "OK"
 }

native/native.tests/testData/codegen/basics/unit1.out

@@ -1,2 +0,0 @@
-First
-kotlin.Unit

native/native.tests/testData/codegen/basics/unit2.kt

@@ -3,14 +3,10 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.unit2
-
-import kotlin.test.*
-
-@Test
-fun runTest() {
+fun box(): String {
     val x = foo()
-    println(x.toString())
+    if (x.toString() != "kotlin.Unit") return "FAIL: $x"
+    return "OK"
 }
 
 fun foo() {

native/native.tests/testData/codegen/basics/unit2.out

@@ -1 +0,0 @@
-kotlin.Unit

native/native.tests/testData/codegen/basics/unit3.kt

@@ -3,15 +3,12 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.unit3
-
-import kotlin.test.*
-
-@Test
-fun runTest() {
-    foo(Unit)
+fun box(): String {
+    val actual = foo(Unit)
+    if (actual != "kotlin.Unit") return "FAIL: $actual"
+    return "OK"
 }
 
-fun foo(x: Any) {
-    println(x.toString())
+fun foo(x: Any): String {
+    return x.toString()
 }

native/native.tests/testData/codegen/basics/unit3.out

@@ -1 +0,0 @@
-kotlin.Unit

native/native.tests/testData/codegen/basics/unit4.kt

@@ -3,16 +3,11 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.basics.unit4
-
-import kotlin.test.*
-
-@Test
-fun runTest() {
+fun box(): String {
     for (x in 0 .. 8) {
         foo(x, Unit)
     }
-    println("Done")
+    return "OK"
 }
 
 var global = 42
@@ -39,7 +34,7 @@ fun foo(x: Int, unit: Unit) {
     }
 
     if (y !== Unit) {
-        println("Fail at x = $x")
+        throw Error("Fail at x = $x")
     }
 }
 

native/native.tests/testData/codegen/basics/unit4.out

@@ -1 +0,0 @@
-Done

native/native.tests/testData/codegen/bce/arraysForLoops.kt

@@ -1,622 +0,0 @@
-/*
- * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
- * that can be found in the LICENSE file.
- */
-package codegen.bce.arraysForLoops
-
-import kotlin.test.*
-import kotlin.reflect.KProperty
-
-@Test fun forEachIndexedTest() {
-    val array = Array(10) { 0 }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        array.forEachIndexed { index, _ ->
-            array[index + 1] = 1
-        }
-    }
-}
-
-@Test fun forEachIndicies() {
-    val array = Array(10) { 0 }
-    val array1 = Array(3) { 0 }
-    var j = 4
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.indices) {
-            array[j] = 6
-            j++
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.indices) {
-            array[i + 1] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.indices) {
-            array1[i] = 6
-        }
-    }
-}
-
-@Test fun forUntilSize() {
-    val array = Array(10) { 0L }
-    val array1 = Array(3) { 0L }
-    var j = 4
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0 until array.size) {
-            array[j] = 6
-            j++
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0 until array.size) {
-            array[i - 1] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0 until array.size) {
-            array1[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0 until array.size + 10) {
-            array[i] = 6
-        }
-    }
-}
-
-@Test fun forDownToSize() {
-    val array = Array(10) { 0L }
-    val array1 = Array(3) { 0L }
-    var j = 4
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.size - 1 downTo 0) {
-            array[j] = 6
-            j++
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.size - 1 downTo 0) {
-            array[i *  2] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.size - 1 downTo 0) {
-            array1[i] = 6
-        }
-    }
-
-    var a = array.size - 1
-    val b = ++a
-    val c = b
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in c downTo 0) {
-            array[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.size + 1 downTo 0) {
-            array[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.size - 1 downTo -1) {
-            array[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.size downTo 0) {
-            array[i] = 6
-        }
-    }
-}
-
-@Test fun forRangeToSize() {
-    val array = Array(10) { 0L }
-    val array1 = Array(3) { 0L }
-    var j = 4
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..array.size - 1) {
-            array[j] = 6
-            j++
-        }
-    }
-
-    var length = array.size - 1
-    length = 2 * length
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..length) {
-            array[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..array.size - 1) {
-            array[i + 1] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..array.size - 1) {
-            array1[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..array.size + 1) {
-            array[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in -1..array.size - 1) {
-            array[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..array.size) {
-            array[i] = 6
-        }
-    }
-}
-
-@Test fun forRangeToWithStep() {
-    val array = Array(10) { 0L }
-    val array1 = Array(3) { 0L }
-    var j = 8
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..array.size - 1 step 2) {
-            array[j] = 6
-            j++
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..array.size - 1 step 2) {
-            array[i - 1] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..array.size - 1 step 2) {
-            array1[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..array.size + 1 step 2) {
-            array[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in -1..array.size - 1 step 2) {
-            array[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..array.size step 2) {
-            array[i] = 6
-        }
-    }
-}
-
-@Test fun forUntilWithStep() {
-    val array = CharArray(10) { '0' }
-    val array1 = CharArray(3) { '0' }
-    var j = 8
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0 until array.size step 2) {
-            array[j] = '6'
-            j++
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0 until array.size step 2) {
-            array[i + 3] = '6'
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0 until array.size step 2) {
-            array1[i] = '6'
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0 until (array.size/0.5).toInt() step 2) {
-            array[i] = '6'
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in -array.size until array.size step 2) {
-            array[i] = '6'
-        }
-    }
-}
-
-@Test fun forDownToWithStep() {
-    val array = UIntArray(10) { 0U }
-    val array1 = UIntArray(3) { 0U }
-    var j = 8
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.size - 1 downTo 0 step 2) {
-            array[j] = 6U
-            j++
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.size - 1 downTo 1 step 2) {
-            array[i + 1] = 6U
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.size - 1 downTo 1 step 2) {
-            array1[i] = 6U
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in (array.size / 0.2).toInt() downTo 1 step 2) {
-            array[i] = 6U
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.size - 1 downTo -3 step 2) {
-            array[i] = 6U
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.size downTo 1 step 2) {
-            array[i] = 6U
-        }
-    }
-}
-
-@Test fun forIndiciesWithStep() {
-    val array = Array(10) { 0L }
-    val array1 = Array(3) { 0L }
-    var j = 8
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.indices step 2) {
-            array[j] = 6
-            j++
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.indices step 2) {
-            array[i - 1] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in array.indices step 2) {
-            array1[i] = 6
-        }
-    }
-}
-
-@Test fun forWithIndex() {
-    val array = Array(10) { 100 }
-    val array1 = Array(3) { 0 }
-    var j = 8
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for ((index, value) in array.withIndex()) {
-            array[j] = 6
-            j++
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for ((index, value) in array.withIndex()) {
-            array[index + 1] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for ((index, value) in array.withIndex()) {
-            array[value] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for ((i, v) in (0..array.size + 30 step 2).withIndex()) {
-            array[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for ((i, v) in (0..array.size).withIndex()) {
-            array[v] = 8
-        }
-    }
-}
-
-@Test fun forReversed() {
-    val array = Array(10) { 100 }
-    val array1 = Array(3) { 0 }
-    var j = 8
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in (0..array.size-1).reversed()) {
-            array[j] = 6
-            j++
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in (0 until array.size).reversed()) {
-            array1[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in (0..array.size).reversed()) {
-            array[i] = 6
-        }
-    }
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in (array.size downTo 0).reversed()) {
-            array[i] = 6
-        }
-    }
-}
-
-fun foo(a: Int, b : Int): Int = a + b * 2
-
-@Test fun bceCases() {
-    val array = Array(10) { 100 }
-    val array1 = Array(3) { 0 }
-    var length = array.size  - 1
-    var sum = 0
-
-    array.forEach {
-        sum += it
-    }
-
-    for (i in array.indices) {
-        array[i] = 6
-    }
-
-    for (i in 0 until array.size) {
-        array[i] = 7
-    }
-
-    for (i in array.size - 1 downTo 1) {
-        array[i] = 7
-    }
-
-    for (it in array) {
-        sum += it
-    }
-
-    for (i in 0..array.size - 1 step 2) {
-        array[i] = 7
-    }
-
-    for (i in 0 until array.size step 2) {
-        array[i] = 7
-    }
-
-    for (i in array.indices step 2) {
-        array[i] = 6
-    }
-
-    for (i in array.size - 1 downTo 1 step 2) {
-        array[i] = 7
-    }
-
-    for ((index, value) in array.withIndex()) {
-        array[index] = 8
-    }
-
-    for ((i, v) in (0..array.size - 1 step 2).withIndex()) {
-        array[v] = 8
-        array[i] = 6
-    }
-    for (i in array.reversed()) {
-        sum += i
-    }
-
-    for (i in (0..array.size-1).reversed()) {
-        array [i] = 10
-    }
-
-    for (i in 0 until array.size) {
-        array[i] = 7
-        for (j in 0 until array1.size) {
-            array1[j] = array[i]
-        }
-    }
-
-    val size = array.size - 1
-    val size1 = size
-
-    for (i in 0..size1) {
-        foo(array[i], array[i])
-    }
-
-    for (i in 0..array.size - 2) {
-        array[i+1] = array[i]
-    }
-}
-
-var needSmallArray = true
-
-class WithGetter() {
-    val array: Array<Int>
-        get() = if (needSmallArray)
-            Array(10) { 100 }
-        else
-            Array(100) { 100 }
-}
-
-class Delegate {
-    operator fun getValue(thisRef: Any?, property: KProperty<*>): Array<Int> {
-        return if (needSmallArray)
-            Array(10) { 100 }
-        else
-            Array(100) { 100 }
-    }
-}
-
-class WithDelegates {
-    val array by Delegate()
-}
-
-open class Base {
-    open val array = Array(10) { 100 }
-    val array1 by Delegate()
-}
-
-class Child : Base() {
-    override val array: Array<Int>
-        get() = if (needSmallArray)
-            Array(10) { 100 }
-        else
-            Array(100) { 100 }
-}
-
-@Test fun withGetter() {
-    val obj = WithGetter()
-    needSmallArray = false
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..obj.array.size-1) {
-            needSmallArray = true
-            obj.array[i] = 6
-            needSmallArray = false
-        }
-    }
-}
-
-@Test fun delegatedProperty() {
-    val obj = WithDelegates()
-    needSmallArray = false
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..obj.array.size-1) {
-            needSmallArray = true
-            obj.array[i] = 6
-            needSmallArray = false
-        }
-    }
-}
-
-@Test fun inheritance() {
-    val obj = Child()
-    val base = Base()
-    needSmallArray = false
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..obj.array.size-1) {
-            needSmallArray = true
-            obj.array[i] = 6
-            needSmallArray = false
-        }
-    }
-
-    needSmallArray = false
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..obj.array1.size-1) {
-            needSmallArray = true
-            obj.array1[i] = 6
-            needSmallArray = false
-        }
-    }
-
-    needSmallArray = false
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..obj.array.size-1) {
-            needSmallArray = true
-            base.array[i] = 6
-            needSmallArray = false
-        }
-    }
-}
-
-val array: Array<Int> = arrayOf(1)
-    get() = if (needSmallArray) field else arrayOf(1, 2, 3)
-
-@Test fun customeGetter() {
-    val a = array
-    needSmallArray = false
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (index in 0 until array.size) {
-            a[index] = 6
-        }
-    }
-}
-
-class First(initArray: Array<Int>) {
-    val array = initArray
-}
-
-class Second(initArray: Array<Int>){
-    val first = First(initArray)
-}
-
-class Third(initArray: Array<Int>) {
-    val second = Second(initArray)
-}
-
-@Test fun differentObjects() {
-    val a = Third(arrayOf(1, 2, 3, 4, 5))
-    val b = Third(arrayOf(1, 2))
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (i in 0..a.second.first.array.size-1) {
-            b.second.first.array[i] = 6
-        }
-    }
-}
-
-class Foo(size: Int) {
-    val array = IntArray(size)
-}
-
-class Bar {
-    val smallFoo = Foo(1)
-    val largeFoo = Foo(10)
-
-    val smallArray = smallFoo.array
-    val largeArray = largeFoo.array
-}
-
-@Test fun differentArrays() {
-    val bar = Bar()
-
-    assertFailsWith<IndexOutOfBoundsException> {
-        for (index in 0 until bar.largeArray.size) {
-            bar.smallArray[index] = 6
-        }
-    }
-}

native/native.tests/testData/codegen/bce/bceCases.kt

@@ -0,0 +1,89 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+fun foo(a: Int, b : Int): Int = a + b * 2
+
+fun box(): String {
+    val array = Array(10) { 100 }
+    val array1 = Array(3) { 0 }
+    var length = array.size  - 1
+    var sum = 0
+
+    array.forEach {
+        sum += it
+    }
+
+    for (i in array.indices) {
+        array[i] = 6
+    }
+
+    for (i in 0 until array.size) {
+        array[i] = 7
+    }
+
+    for (i in array.size - 1 downTo 1) {
+        array[i] = 7
+    }
+
+    for (it in array) {
+        sum += it
+    }
+
+    for (i in 0..array.size - 1 step 2) {
+        array[i] = 7
+    }
+
+    for (i in 0 until array.size step 2) {
+        array[i] = 7
+    }
+
+    for (i in array.indices step 2) {
+        array[i] = 6
+    }
+
+    for (i in array.size - 1 downTo 1 step 2) {
+        array[i] = 7
+    }
+
+    for ((index, value) in array.withIndex()) {
+        array[index] = 8
+    }
+
+    for ((i, v) in (0..array.size - 1 step 2).withIndex()) {
+        array[v] = 8
+        array[i] = 6
+    }
+    for (i in array.reversed()) {
+        sum += i
+    }
+
+    for (i in (0..array.size-1).reversed()) {
+        array [i] = 10
+    }
+
+    for (i in 0 until array.size) {
+        array[i] = 7
+        for (j in 0 until array1.size) {
+            array1[j] = array[i]
+        }
+    }
+
+    val size = array.size - 1
+    val size1 = size
+
+    for (i in 0..size1) {
+        foo(array[i], array[i])
+    }
+
+    for (i in 0..array.size - 2) {
+        array[i+1] = array[i]
+    }
+
+    if (array.toList() != listOf(7, 7, 7, 7, 7, 7, 7, 7, 7, 7)) return "FAIL 1: ${array.toList()}"
+    if (array1.toList() != listOf(7, 7, 7)) return "FAIL 2: ${array1.toList()}"
+
+    return "OK"
+}

native/native.tests/testData/codegen/bce/customGetter.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+var needSmallArray = true
+
+val array: Array<Int> = arrayOf(1)
+    get() = if (needSmallArray) field else arrayOf(1, 2, 3)
+
+fun box(): String {
+    val a = array
+    needSmallArray = false
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (index in 0 until array.size) {
+            a[index] = 6
+        }
+    }
+
+    return "OK"
+}

native/native.tests/testData/codegen/bce/delegatedProperty.kt

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+import kotlin.reflect.KProperty
+
+var needSmallArray = true
+
+class Delegate {
+    operator fun getValue(thisRef: Any?, property: KProperty<*>): Array<Int> {
+        return if (needSmallArray)
+            Array(10) { 100 }
+        else
+            Array(100) { 100 }
+    }
+}
+
+class WithDelegates {
+    val array by Delegate()
+}
+
+fun box(): String {
+    val obj = WithDelegates()
+    needSmallArray = false
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..obj.array.size-1) {
+            needSmallArray = true
+            obj.array[i] = 6
+            needSmallArray = false
+        }
+    }
+
+    return "OK"
+}

native/native.tests/testData/codegen/bce/differentArrays.kt

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+class Foo(size: Int) {
+    val array = IntArray(size)
+}
+
+class Bar {
+    val smallFoo = Foo(1)
+    val largeFoo = Foo(10)
+
+    val smallArray = smallFoo.array
+    val largeArray = largeFoo.array
+}
+
+fun box(): String {
+    val bar = Bar()
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (index in 0 until bar.largeArray.size) {
+            bar.smallArray[index] = 6
+        }
+    }
+    return "OK"
+}

native/native.tests/testData/codegen/bce/differentObjects.kt

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+class First(initArray: Array<Int>) {
+    val array = initArray
+}
+
+class Second(initArray: Array<Int>){
+    val first = First(initArray)
+}
+
+class Third(initArray: Array<Int>) {
+    val second = Second(initArray)
+}
+
+fun box(): String {
+    val a = Third(arrayOf(1, 2, 3, 4, 5))
+    val b = Third(arrayOf(1, 2))
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..a.second.first.array.size-1) {
+            b.second.first.array[i] = 6
+        }
+    }
+    return "OK"
+}
+
+class Foo(size: Int) {
+    val array = IntArray(size)
+}
+
+class Bar {
+    val smallFoo = Foo(1)
+    val largeFoo = Foo(10)
+
+    val smallArray = smallFoo.array
+    val largeArray = largeFoo.array
+}
+
+@Test fun differentArrays() {
+    val bar = Bar()
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (index in 0 until bar.largeArray.size) {
+            bar.smallArray[index] = 6
+        }
+    }
+}

native/native.tests/testData/codegen/bce/forDownToSize.kt

@@ -0,0 +1,59 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+fun box(): String {
+    val array = Array(10) { 0L }
+    val array1 = Array(3) { 0L }
+    var j = 4
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.size - 1 downTo 0) {
+            array[j] = 6
+            j++
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.size - 1 downTo 0) {
+            array[i *  2] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.size - 1 downTo 0) {
+            array1[i] = 6
+        }
+    }
+
+    var a = array.size - 1
+    val b = ++a
+    val c = b
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in c downTo 0) {
+            array[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.size + 1 downTo 0) {
+            array[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.size - 1 downTo -1) {
+            array[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.size downTo 0) {
+            array[i] = 6
+        }
+    }
+    return "OK"
+}

native/native.tests/testData/codegen/bce/forDownToWithStep.kt

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+fun box(): String {
+    val array = UIntArray(10) { 0U }
+    val array1 = UIntArray(3) { 0U }
+    var j = 8
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.size - 1 downTo 0 step 2) {
+            array[j] = 6U
+            j++
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.size - 1 downTo 1 step 2) {
+            array[i + 1] = 6U
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.size - 1 downTo 1 step 2) {
+            array1[i] = 6U
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in (array.size / 0.2).toInt() downTo 1 step 2) {
+            array[i] = 6U
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.size - 1 downTo -3 step 2) {
+            array[i] = 6U
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.size downTo 1 step 2) {
+            array[i] = 6U
+        }
+    }
+    return "OK"
+}

native/native.tests/testData/codegen/bce/forEachIndexedTest.kt

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+fun box(): String {
+    val array = Array(10) { 0 }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        array.forEachIndexed { index, _ ->
+            array[index + 1] = 1
+        }
+    }
+    return "OK"
+}

native/native.tests/testData/codegen/bce/forEachIndicies.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+fun box(): String {
+    val array = Array(10) { 0 }
+    val array1 = Array(3) { 0 }
+    var j = 4
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.indices) {
+            array[j] = 6
+            j++
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.indices) {
+            array[i + 1] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.indices) {
+            array1[i] = 6
+        }
+    }
+    return "OK"
+}

native/native.tests/testData/codegen/bce/forIndiciesWithStep.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+fun box(): String {
+    val array = Array(10) { 0L }
+    val array1 = Array(3) { 0L }
+    var j = 8
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.indices step 2) {
+            array[j] = 6
+            j++
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.indices step 2) {
+            array[i - 1] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in array.indices step 2) {
+            array1[i] = 6
+        }
+    }
+    return "OK"
+}

native/native.tests/testData/codegen/bce/forRangeToSize.kt

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+fun box(): String {
+    val array = Array(10) { 0L }
+    val array1 = Array(3) { 0L }
+    var j = 4
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..array.size - 1) {
+            array[j] = 6
+            j++
+        }
+    }
+
+    var length = array.size - 1
+    length = 2 * length
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..length) {
+            array[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..array.size - 1) {
+            array[i + 1] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..array.size - 1) {
+            array1[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..array.size + 1) {
+            array[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in -1..array.size - 1) {
+            array[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..array.size) {
+            array[i] = 6
+        }
+    }
+    return "OK"
+}

native/native.tests/testData/codegen/bce/forRangeToWithStep.kt

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+fun box(): String {
+    val array = Array(10) { 0L }
+    val array1 = Array(3) { 0L }
+    var j = 8
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..array.size - 1 step 2) {
+            array[j] = 6
+            j++
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..array.size - 1 step 2) {
+            array[i - 1] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..array.size - 1 step 2) {
+            array1[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..array.size + 1 step 2) {
+            array[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in -1..array.size - 1 step 2) {
+            array[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..array.size step 2) {
+            array[i] = 6
+        }
+    }
+    return "OK"
+}

native/native.tests/testData/codegen/bce/forReversed.kt

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+fun box(): String {
+    val array = Array(10) { 100 }
+    val array1 = Array(3) { 0 }
+    var j = 8
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in (0..array.size-1).reversed()) {
+            array[j] = 6
+            j++
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in (0 until array.size).reversed()) {
+            array1[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in (0..array.size).reversed()) {
+            array[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in (array.size downTo 0).reversed()) {
+            array[i] = 6
+        }
+    }
+    return "OK"
+}
+

native/native.tests/testData/codegen/bce/forUntilSize.kt

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+fun box(): String {
+    val array = Array(10) { 0L }
+    val array1 = Array(3) { 0L }
+    var j = 4
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0 until array.size) {
+            array[j] = 6
+            j++
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0 until array.size) {
+            array[i - 1] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0 until array.size) {
+            array1[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0 until array.size + 10) {
+            array[i] = 6
+        }
+    }
+    return "OK"
+}

native/native.tests/testData/codegen/bce/forWithIndex.kt

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+fun box(): String {
+    val array = Array(10) { 100 }
+    val array1 = Array(3) { 0 }
+    var j = 8
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for ((index, value) in array.withIndex()) {
+            array[j] = 6
+            j++
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for ((index, value) in array.withIndex()) {
+            array[index + 1] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for ((index, value) in array.withIndex()) {
+            array[value] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for ((i, v) in (0..array.size + 30 step 2).withIndex()) {
+            array[i] = 6
+        }
+    }
+
+    assertFailsWith<IndexOutOfBoundsException> {
+        for ((i, v) in (0..array.size).withIndex()) {
+            array[v] = 8
+        }
+    }
+    return "OK"
+}

native/native.tests/testData/codegen/bce/inheritance.kt

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.reflect.KProperty
+import kotlin.test.*
+
+var needSmallArray = true
+
+class Delegate {
+    operator fun getValue(thisRef: Any?, property: KProperty<*>): Array<Int> {
+        return if (needSmallArray)
+            Array(10) { 100 }
+        else
+            Array(100) { 100 }
+    }
+}
+
+open class Base {
+    open val array = Array(10) { 100 }
+    val array1 by Delegate()
+}
+
+class Child : Base() {
+    override val array: Array<Int>
+        get() = if (needSmallArray)
+            Array(10) { 100 }
+        else
+            Array(100) { 100 }
+}
+
+fun box(): String {
+    val obj = Child()
+    val base = Base()
+    needSmallArray = false
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..obj.array.size-1) {
+            needSmallArray = true
+            obj.array[i] = 6
+            needSmallArray = false
+        }
+    }
+
+    needSmallArray = false
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..obj.array1.size-1) {
+            needSmallArray = true
+            obj.array1[i] = 6
+            needSmallArray = false
+        }
+    }
+
+    needSmallArray = false
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..obj.array.size-1) {
+            needSmallArray = true
+            base.array[i] = 6
+            needSmallArray = false
+        }
+    }
+    return "OK"
+}

native/native.tests/testData/codegen/bce/withGetter.kt

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+import kotlin.test.*
+
+var needSmallArray = true
+
+class WithGetter() {
+    val array: Array<Int>
+        get() = if (needSmallArray)
+            Array(10) { 100 }
+        else
+            Array(100) { 100 }
+}
+
+fun box(): String {
+    val obj = WithGetter()
+    needSmallArray = false
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (i in 0..obj.array.size-1) {
+            needSmallArray = true
+            obj.array[i] = 6
+            needSmallArray = false
+        }
+    }
+
+    return "OK"
+}

native/native.tests/testData/codegen/boxing/box_cache0.kt

@@ -3,8 +3,6 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.boxing.box_cache0
-
 import kotlin.test.*
 
 fun <T> areSame(arg1: T, arg2: T): Boolean {
@@ -15,7 +13,7 @@ fun Boolean.oneIfTrueElseZero(): Int {
     return if (this) 1 else 0
 }
 
-@Test fun runTest() {
+fun box(): String {
     var acc = 0
     val range = 1000
 
@@ -24,35 +22,37 @@ fun Boolean.oneIfTrueElseZero(): Int {
             acc += areSame(i, j).oneIfTrueElseZero()
         }
     }
-    println(acc)
+    if (acc != 2) "FAIL 1: $acc"
 
     acc = 0
     for (i in Byte.MIN_VALUE..Byte.MAX_VALUE) {
         acc += areSame(i, i).oneIfTrueElseZero()
     }
-    println(acc)
+    if (acc != 256) "FAIL 2: $acc"
 
     acc = 0
     for (i in Short.MIN_VALUE..Short.MAX_VALUE) {
         acc += areSame(i, i).oneIfTrueElseZero()
     }
-    println(acc)
+    if (acc != 256) "FAIL 3: $acc"
 
     acc = 0
     for (i in 0.toChar()..range.toChar()) {
         acc += areSame(i, i).oneIfTrueElseZero()
     }
-    println(acc)
+    if (acc != 256) "FAIL 4: $acc"
 
     acc = 0
     for (i in -range..range) {
         acc += areSame(i, i).oneIfTrueElseZero()
     }
-    println(acc)
+    if (acc != 256) "FAIL 5: $acc"
 
     acc = 0
     for (i in -range.toLong()..range.toLong()) {
         acc += areSame(i, i).oneIfTrueElseZero()
     }
-    println(acc)
+    if (acc != 256) "FAIL 6: $acc"
+
+    return "OK"
 }

native/native.tests/testData/codegen/boxing/box_cache0.out

@@ -1,6 +0,0 @@
-2
-256
-256
-256
-256
-256

native/native.tests/testData/codegen/boxing/boxing0.kt

@@ -3,19 +3,20 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.boxing.boxing0
-
 import kotlin.test.*
 
 class Box<T>(t: T) {
     var value = t
 }
 
-@Test fun runTest() {
+fun box(): String {
     val box: Box<Int> = Box<Int>(17)
-    println(box.value)
+    if (box.value != 17) return "FAIL 1: ${box.value}"
+
     val nonConst = 17
     val box2: Box<Int> = Box<Int>(nonConst)
-    println(box2.value)
+    if (box2.value != 17) return "FAIL 1: ${box2.value}"
+
+    return "OK"
 }
 

native/native.tests/testData/codegen/boxing/boxing0.out

@@ -1,2 +0,0 @@
-17
-17

native/native.tests/testData/codegen/boxing/boxing1.kt

@@ -3,15 +3,15 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.boxing.boxing1
-
 import kotlin.test.*
 
+val sb = StringBuilder()
+
 fun foo(arg: Any) {
-    println(arg.toString())
+    sb.appendLine(arg.toString())
 }
 
-@Test fun runTest() {
+fun box(): String {
     foo(1)
     foo(2u)
     foo(false)
@@ -24,4 +24,17 @@ fun foo(arg: Any) {
     foo(nonConstUInt)
     foo(nonConstBool)
     foo(nonConstString)
+
+    assertEquals("""
+        1
+        2
+        false
+        Hello
+        1
+        2
+        false
+        Hello
+
+    """.trimIndent(), sb.toString())
+    return "OK"
 }

native/native.tests/testData/codegen/boxing/boxing1.out

@@ -1,8 +0,0 @@
-1
-2
-false
-Hello
-1
-2
-false
-Hello

native/native.tests/testData/codegen/boxing/boxing10.kt

@@ -3,16 +3,15 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.boxing.boxing10
-
 import kotlin.test.*
 
-@Test fun runTest() {
+fun box(): String {
     val FALSE: Boolean? = false
 
     if (FALSE != null) {
         do {
-            println("Ok")
+            return "OK"
         } while (FALSE)
     }
+    return "FAIL"
 }

native/native.tests/testData/codegen/boxing/boxing10.out

@@ -1 +0,0 @@
-Ok

native/native.tests/testData/codegen/boxing/boxing11.kt

@@ -3,11 +3,11 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.boxing.boxing11
-
 import kotlin.test.*
 
-fun printInt(x: Int) = println(x)
+val sb = StringBuilder()
+
+fun printInt(x: Int) = sb.appendLine(x)
 
 class Foo(val value: Int?) {
     fun foo() {
@@ -15,7 +15,10 @@ class Foo(val value: Int?) {
     }
 }
 
-@Test fun runTest() {
+fun box(): String {
     Foo(17).foo()
     Foo(null).foo()
+
+    assertEquals("17\n42\n", sb.toString())
+    return "OK"
 }

native/native.tests/testData/codegen/boxing/boxing11.out

@@ -1,2 +0,0 @@
-17
-42

native/native.tests/testData/codegen/boxing/boxing12.kt

@@ -3,16 +3,19 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.boxing.boxing12
-
 import kotlin.test.*
 
+val sb = StringBuilder()
+
 fun foo(x: Number) {
-    println(x.toByte())
+    sb.appendLine(x.toByte())
 }
 
-@Test fun runTest() {
+fun box(): String {
     foo(18)
     val nonConst = 18
     foo(nonConst)
+
+    assertEquals("18\n18\n", sb.toString())
+    return "OK"
 }

native/native.tests/testData/codegen/boxing/boxing12.out

@@ -1,2 +0,0 @@
-18
-18

native/native.tests/testData/codegen/boxing/boxing13.kt

@@ -3,16 +3,16 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.boxing.boxing13
-
 import kotlin.test.*
 
+val sb = StringBuilder()
+
 fun is42(x: Any?) {
-    println(x == 42)
-    println(42 == x)
+    sb.appendLine(x == 42)
+    sb.appendLine(42 == x)
 }
 
-@Test fun runTest() {
+fun box(): String {
     is42(16)
     is42(42)
     is42("42")
@@ -22,4 +22,21 @@ fun is42(x: Any?) {
     is42(nonConst16)
     is42(nonConst42)
     is42(nonConst42String)
+
+    assertEquals("""
+        false
+        false
+        true
+        true
+        false
+        false
+        false
+        false
+        true
+        true
+        false
+        false
+        
+    """.trimIndent(), sb.toString())
+    return "OK"
 }

native/native.tests/testData/codegen/boxing/boxing13.out

@@ -1,12 +0,0 @@
-false
-false
-true
-true
-false
-false
-false
-false
-true
-true
-false
-false

native/native.tests/testData/codegen/boxing/boxing14.kt

@@ -3,14 +3,17 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.boxing.boxing14
-
 import kotlin.test.*
 
-@Test fun runTest() {
+val sb = StringBuilder()
+
+fun box(): String {
     42.println()
     val nonConst = 42
     nonConst.println()
+
+    assertEquals("42\n42\n", sb.toString())
+    return "OK"
 }
 
-fun <T> T.println() = println(this.toString())
+fun <T> T.println() = sb.appendLine(this)

native/native.tests/testData/codegen/boxing/boxing14.out

@@ -1,2 +0,0 @@
-42
-42

native/native.tests/testData/codegen/boxing/boxing15.kt

@@ -3,14 +3,17 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.boxing.boxing15
-
 import kotlin.test.*
 
-@Test fun runTest() {
-    println(foo(17))
+fun box(): String {
+    val res1 = foo(17)
+    if (res1 != 17) return "FAIL 1: $res1"
+
     val nonConst = 17
-    println(foo(nonConst))
+    val res2 = foo(nonConst)
+    if (res2 != 17) return "FAIL 2: $res2"
+
+    return "OK"
 }
 
 fun <T : Int> foo(x: T): Int = x

native/native.tests/testData/codegen/boxing/boxing15.out

@@ -1,2 +0,0 @@
-17
-17

native/native.tests/testData/codegen/boxing/boxing2.kt

@@ -3,13 +3,13 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.boxing.boxing2
-
 import kotlin.test.*
 
-fun printInt(x: Int) = println(x)
-fun printBoolean(x: Boolean) = println(x)
-fun printUInt(x: UInt) = println(x)
+val sb = StringBuilder()
+
+fun printInt(x: Int) = sb.appendLine(x.toString())
+fun printBoolean(x: Boolean) = sb.appendLine(x.toString())
+fun printUInt(x: UInt) = sb.appendLine(x.toString())
 
 fun foo(arg: Any) {
     if (arg is Int)
@@ -19,10 +19,10 @@ fun foo(arg: Any) {
     else if (arg is UInt)
         printUInt(arg)
     else
-        println("other")
+        sb.appendLine("other")
 }
 
-@Test fun runTest() {
+fun box(): String {
     foo(1)
     foo(2u)
     foo(true)
@@ -35,4 +35,17 @@ fun foo(arg: Any) {
     foo(nonConstUInt)
     foo(nonConstBool)
     foo(nonConstString)
+
+    assertEquals("""
+        1
+        2
+        true
+        other
+        1
+        2
+        true
+        other
+        
+    """.trimIndent(), sb.toString())
+    return "OK"
 }

native/native.tests/testData/codegen/boxing/boxing2.out

@@ -1,8 +0,0 @@
-1
-2
-true
-other
-1
-2
-true
-other