[Native][tests] Use more compact paths to produced binaries

native/native.tests/build.gradle.kts

@@ -12,6 +12,7 @@ dependencies {
     testImplementation(project(":kotlin-reflect"))
     testImplementation(intellijCoreDep()) { includeJars("intellij-core") }
     testImplementation(intellijPluginDep("java"))
+    testImplementation(intellijDep()) { includeJars("commons-lang-2.4") }
     testImplementation(project(":kotlin-compiler-runner-unshaded"))
     testImplementation(projectTests(":compiler:tests-common"))
     testImplementation(projectTests(":compiler:tests-common-new"))

native/native.tests/tests/org/jetbrains/kotlin/konan/blackboxtest/CompressedNamesTest.kt

@@ -0,0 +1,92 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.konan.blackboxtest
+
+import org.jetbrains.kotlin.konan.blackboxtest.support.util.compressedName
+import org.jetbrains.kotlin.konan.blackboxtest.support.util.compressedPackageName
+import org.jetbrains.kotlin.konan.blackboxtest.support.util.compressedSimpleName
+import org.jetbrains.kotlin.konan.target.Architecture
+import org.jetbrains.kotlin.konan.target.Family
+import org.jetbrains.kotlin.konan.target.KonanTarget
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.Test
+import kotlin.coroutines.Continuation
+
+class CompressedNamesTest {
+    @Test
+    fun targetNameCompression() {
+        val knownTargets: Set<KonanTarget> = KonanTarget.predefinedTargets.values.toSet()
+
+        val compressedNameToTargets: Map<String, KonanTarget> = knownTargets.associateBy { it.compressedName }
+        val missingTargets: Set<KonanTarget> = compressedNameToTargets.values.toSet() - knownTargets
+
+        assertTrue(missingTargets.isEmpty()) { "There are missing targets: $missingTargets" }
+        assertEquals(knownTargets.size, compressedNameToTargets.size)
+
+        val shortestCompressedName = compressedNameToTargets.keys.minByOrNull { it.length }!!
+        assertTrue(shortestCompressedName.isNotEmpty()) { "Found empty compressed name: $shortestCompressedName" }
+
+        val longestCompressedName = compressedNameToTargets.keys.maxByOrNull { it.length }!!
+        assertTrue(longestCompressedName.length < 6) { "Found too long compressed name: $longestCompressedName" }
+    }
+
+    @Test
+    fun familyNameCompression() {
+        val knownFamilies: Set<Family> = Family.values().toSet()
+
+        val compressedNameToFamily: Map<Char, Family> = knownFamilies.associateBy { it.compressedName }
+        val missingFamilies: Set<Family> = compressedNameToFamily.values.toSet() - knownFamilies
+
+        assertTrue(missingFamilies.isEmpty()) { "There are missing families: $missingFamilies" }
+        assertEquals(knownFamilies.size, compressedNameToFamily.size)
+    }
+
+    @Test
+    fun architectureNameCompression() {
+        val knownArchitectures: Set<Architecture> = Architecture.values().toSet()
+
+        val compressedNameToArchitecture: Map<String, Architecture> = knownArchitectures.associateBy { it.compressedName }
+        val missingArchitecture: Set<Architecture> = compressedNameToArchitecture.values.toSet() - knownArchitectures
+
+        assertTrue(missingArchitecture.isEmpty()) { "There are missing architectures: $missingArchitecture" }
+        assertEquals(knownArchitectures.size, compressedNameToArchitecture.size)
+
+        val nameLengths: Map<Int, List<String>> = compressedNameToArchitecture.keys.groupBy { it.length }
+        assertEquals(setOf(3), nameLengths.keys) { "Found compressed names with unexpected lengths: $nameLengths" }
+    }
+
+    @Test
+    fun classNameCompression() {
+        assertEquals("LinHasMap", LinkedHashMap::class.java.compressedSimpleName)
+        assertEquals("Con", Continuation::class.java.compressedSimpleName)
+        assertEquals("AbsNatBlaBoxTes", AbstractNativeBlackBoxTest::class.java.compressedSimpleName)
+    }
+
+    @Test
+    fun packageNameCompression() {
+        assertEquals(
+            "foo_bar_baz",
+            "foo.bar.baz".compressedPackageName
+        )
+        assertEquals(
+            "foo_bar_baz_foo_bar_baz",
+            "foo.bar.baz.foo.bar.baz".compressedPackageName
+        )
+        assertEquals(
+            "foo_bar_baz_foo_bar_baz_foo_bar_baz",
+            "foo.bar.baz.foo.bar.baz.foo.bar.baz".compressedPackageName
+        )
+        assertEquals(
+            "foo_bar_baz_foo_bar_baz_foo_bar-de3b161b",
+            "foo.bar.baz.foo.bar.baz.foo.bar.baz.foo.bar.baz".compressedPackageName
+        )
+        assertEquals(
+            "foo_bar_baz_foo_bar_baz_foo_bar-a4571752",
+            "foo.bar.baz.foo.bar.baz.foo.bar.baz.foo.bar.baz.foo.bar.baz".compressedPackageName
+        )
+    }
+}

native/native.tests/tests/org/jetbrains/kotlin/konan/blackboxtest/support/NativeBlackBoxTestSupport.kt

@@ -39,15 +39,19 @@ class NativeBlackBoxTestSupport : BeforeEachCallback {
         private val NAMESPACE = ExtensionContext.Namespace.create(NativeBlackBoxTestSupport::class.java.simpleName)
 
         /** Creates a single instance of [TestRunProvider] per test class. */
-        private fun ExtensionContext.getOrCreateTestRunProvider(): TestRunProvider =
-            root.getStore(NAMESPACE).getOrComputeIfAbsent(enclosingTestClass.sanitizedName) { sanitizedName ->
+        private fun ExtensionContext.getOrCreateTestRunProvider(): TestRunProvider {
+            val enclosingTestClass = enclosingTestClass
+
+            return root.getStore(NAMESPACE).getOrComputeIfAbsent(enclosingTestClass.sanitizedName) {
                 val globalEnvironment = getOrCreateGlobalEnvironment()
 
                 val testRoots = computeTestRoots()
 
+                val uniqueEnclosingClassDirName = globalEnvironment.target.compressedName + "_" + enclosingTestClass.compressedSimpleName
+
                 val testSourcesDir = globalEnvironment.baseBuildDir
-                    .resolve("blackbox-test-sources")
-                    .resolve(sanitizedName)
+                    .resolve("bbtest.src")
+                    .resolve(uniqueEnclosingClassDirName)
                     .ensureExistsAndIsEmptyDirectory() // Clean-up the directory with all potentially stale generated sources.
 
                 val sharedSourcesDir = testSourcesDir
@@ -55,9 +59,8 @@ class NativeBlackBoxTestSupport : BeforeEachCallback {
                     .ensureExistsAndIsEmptyDirectory()
 
                 val testBinariesDir = globalEnvironment.baseBuildDir
-                    .resolve("blackbox-test-binaries")
-                    .resolve(globalEnvironment.target.name)
-                    .resolve(sanitizedName)
+                    .resolve("bbtest.bin")
+                    .resolve(uniqueEnclosingClassDirName)
                     .ensureExistsAndIsEmptyDirectory() // Clean-up the directory with all potentially stale artifacts.
 
                 val sharedBinariesDir = testBinariesDir
@@ -77,6 +80,7 @@ class NativeBlackBoxTestSupport : BeforeEachCallback {
 
                 TestRunProvider(environment, testCaseGroupProvider)
             }.cast()
+        }
 
         private fun ExtensionContext.getOrCreateGlobalEnvironment(): GlobalTestEnvironment =
             root.getStore(NAMESPACE).getOrComputeIfAbsent(GlobalTestEnvironment::class.java.sanitizedName) {

native/native.tests/tests/org/jetbrains/kotlin/konan/blackboxtest/support/TestCompiler.kt

@@ -99,7 +99,7 @@ internal class TestCompilationFactory(private val environment: TestEnvironment)
 
     private fun singleModuleArtifactFile(module: TestModule.Exclusive, extension: String): File {
         val artifactFileName = buildString {
-            append(module.testCase.nominalPackageName.replace('.', '_')).append('.')
+            append(module.testCase.nominalPackageName.compressedPackageName).append('.')
             if (extension == "klib") append(module.name).append('.')
             append(extension)
         }
@@ -129,7 +129,7 @@ internal class TestCompilationFactory(private val environment: TestEnvironment)
             append(prefix).append('-')
 
             if (commonPackageName != null)
-                append(commonPackageName.replace('.', '_')).append('-')
+                append(commonPackageName.compressedPackageName).append('-')
 
             append(prettyHash(hash))
 
@@ -141,7 +141,7 @@ internal class TestCompilationFactory(private val environment: TestEnvironment)
 
     private fun artifactDirForPackageName(packageName: PackageFQN?): File {
         val baseDir = environment.testBinariesDir
-        val outputDir = if (packageName != null) baseDir.resolve(packageName.replace('.', '_')) else baseDir
+        val outputDir = if (packageName != null) baseDir.resolve(packageName.compressedPackageName) else baseDir
 
         outputDir.mkdirs()
 

native/native.tests/tests/org/jetbrains/kotlin/konan/blackboxtest/support/util/CompressedNames.kt

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.konan.blackboxtest.support.util
+
+import org.apache.commons.lang.StringUtils.splitByCharacterTypeCamelCase
+import org.jetbrains.kotlin.konan.blackboxtest.support.PackageFQN
+import org.jetbrains.kotlin.konan.target.Architecture
+import org.jetbrains.kotlin.konan.target.Family
+import org.jetbrains.kotlin.konan.target.KonanTarget
+
+internal val KonanTarget.compressedName: String
+    get() = buildString {
+        append(family.compressedName)
+        name.splitToSequence('_')
+            .drop(1)
+            .filter { it.none(Char::isDigit) }
+            .forEach { append(it[0]) }
+        append(architecture.compressedName)
+    }
+
+internal val Family.compressedName: Char
+    get() = when (this) {
+        Family.OSX -> 'o'
+        Family.IOS -> 'i'
+        Family.TVOS -> 't'
+        Family.WATCHOS -> 'w'
+        Family.LINUX -> 'l'
+        Family.MINGW -> 'm'
+        Family.ANDROID -> 'a'
+        Family.WASM -> 'j' // because 'w', 'a' and 'm' are already occupied
+        Family.ZEPHYR -> 'z'
+    }
+
+internal val Architecture.compressedName: String
+    get() = when (this) {
+        Architecture.X64 -> "x64"
+        Architecture.X86 -> "x86"
+        Architecture.ARM64 -> "a64"
+        Architecture.ARM32 -> "a32"
+        Architecture.MIPS32 -> "m32"
+        Architecture.MIPSEL32 -> "e32"
+        Architecture.WASM32 -> "w32"
+    }
+
+internal val Class<*>.compressedSimpleName: String
+    get() = splitByCharacterTypeCamelCase(simpleName).joinToString("") { it.take(3) }
+
+internal val PackageFQN.compressedPackageName: String
+    get() {
+        val sanitizedName = replace('.', '_')
+        return if (sanitizedName.length > COMPRESSED_PACKAGE_FQN_MAX_LENGTH) {
+            val suffix = "-" + prettyHash(sanitizedName.hashCode())
+            sanitizedName.substring(0, COMPRESSED_PACKAGE_FQN_MAX_LENGTH - suffix.length) + suffix
+        } else
+            sanitizedName
+    }
+
+private const val COMPRESSED_PACKAGE_FQN_MAX_LENGTH = 40