[K/N] Migrate some runtime/basic tests to new testing infra ^KT-61259

kotlin-native/runtime/test/numbers/ConversionNativeTest.kt

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2010-2023 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 test.numbers
+
+import kotlin.test.*
+
+// Native-specific part of stdlib/test/numbers/ConversionTest.kt
+class ConversionNativeTest {
+    @Test
+    fun floatToInt() {
+        fun testEquals(expected: Int, v: Float) = assertEquals(expected, v.toInt())
+
+        testEquals(3, 3.14f)
+        testEquals(-33333, -33333.12312f)
+        testEquals(-1, -1.2f)
+        testEquals(-12, -12.6f)
+        testEquals(2, 2.3f)
+    }
+
+    @Test
+    fun intToShort() {
+        fun testEquals(expected: Short, v: Int) = assertEquals(expected, v.toShort())
+
+        testEquals(-1, Int.MAX_VALUE)
+    }
+}