Allow setting test binary linker options using a test compilation

#KT-29254 Fixed

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/NewMultiplatformIT.kt

@@ -117,6 +117,14 @@ class NewMultiplatformIT : BaseGradleIT() {
             setupWorkingDir()
             gradleBuildScript().appendText("\nrepositories { maven { setUrl(\"$libLocalRepoUri\") } }")
 
+            fun CompiledProject.checkProgramCompilationCommandLine(check: (String) -> Unit) {
+                output.lineSequence().filter {
+                    it.contains("Run tool: konanc") && it.contains("-p program")
+                }.toList().also {
+                    assertTrue(it.isNotEmpty())
+                }.forEach(check)
+            }
+
             fun CompiledProject.checkAppBuild() {
                 assertSuccessful()
                 assertTasksExecuted(*compileTasksNames.toTypedArray())
@@ -154,12 +162,8 @@ class NewMultiplatformIT : BaseGradleIT() {
                 assertFileExists("build/bin/$nativeHostTargetName/mainReleaseExecutable/$nativeExeName")
                 assertFileExists("build/bin/$nativeHostTargetName/mainDebugExecutable/$nativeExeName")
 
-                // Check that linker options was correctly passed to the K/N compiler.
-                output.lineSequence().filter {
-                    it.contains("Run tool: konanc") && it.contains("-p program")
-                }.toList().also {
-                    assertTrue(it.isNotEmpty())
-                }.forEach {
+                // Check that linker options were correctly passed to the K/N compiler.
+                checkProgramCompilationCommandLine {
                     assertTrue(it.contains("-linker-options -L."))
                 }
             }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-app-gradle-kotlin-dsl/build.gradle.kts

@@ -30,6 +30,7 @@ kotlin {
             // Check that linker options are correctly passed to the compiler.
             linkerOpts = mutableListOf("-L.")
 	    }
+        compilations["test"].linkerOpts = mutableListOf("-L.")
     }
 
     sourceSets {

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-app-gradle-kotlin-dsl/src/commonTest/kotlin/test.kt

@@ -0,0 +1,8 @@
+/*
+ * 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/LICENSE.txt file.
+ */
+
+private fun test() {
+    println("test")
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-app/build.gradle

@@ -68,6 +68,7 @@ kotlin {
             compilations.main.entryPoint = "com.example.app.native.main"
             // Check that linker options are correctly passed to the compiler.
             compilations.main.linkerOpts = ['-L.']
+            compilations.test.linkerOpts = ['-L.']
         }
     }
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-app/src/commonTest/kotlin/test.kt

@@ -0,0 +1,8 @@
+/*
+ * 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/LICENSE.txt file.
+ */
+
+private fun test() {
+    println("test")
+}

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/dsl/KotlinNativeBinaryContainer.kt

@@ -134,7 +134,7 @@ open class KotlinNativeBinaryContainer @Inject constructor(
     internal fun defaultTestExecutable(
         configure: Executable.() -> Unit
     ) = createBinaries(
-        "test",
+        DEFAULT_TEST_NAME_PREFIX,
         "test",
         NativeOutputKind.EXECUTABLE,
         listOf(DEFAULT_TEST_BUILD_TYPE),
@@ -144,8 +144,12 @@ open class KotlinNativeBinaryContainer @Inject constructor(
         configure
     )
 
+    internal fun getDefaultTestExecutable(): Executable =
+        getExecutable(DEFAULT_TEST_NAME_PREFIX, DEFAULT_TEST_BUILD_TYPE)
+
     companion object {
         internal val DEFAULT_TEST_BUILD_TYPE = NativeBuildType.DEBUG
+        internal val DEFAULT_TEST_NAME_PREFIX = "test"
 
         internal fun generateBinaryName(prefix: String, buildType: NativeBuildType, outputKindClassifier: String) =
             lowerCamelCaseName(prefix, buildType.getName(), outputKindClassifier)

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinTargetConfigurator.kt

@@ -664,6 +664,11 @@ open class KotlinNativeTargetConfigurator(
                     }
                 }
             }
+            // Allow setting linker options for the default test executable using the
+            // corresponding properties of the test compilation.
+            target.binaries.getDefaultTestExecutable().apply {
+                linkerOpts.addAll(target.compilations.getByName(TEST_COMPILATION_NAME).linkerOpts)
+            }
         }
     }