rra/ilgonmic/dry-run-wo-output

[Gradle, JS] Use assertOutputDoesNotContain

[Gradle, JS] Add test on no output for dry run in gradle tests

[Gradle, JS] No output for dry run in gradle tests

Merge-request: KT-MR-6029
Merged-by: Ilya Goncharov <Ilya.Goncharov@jetbrains.com>

^KT-51895 fixed

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/Kotlin2JsGradlePluginIT.kt

@@ -32,6 +32,7 @@ import kotlin.io.path.*
 import kotlin.streams.toList
 import kotlin.test.assertEquals
 import kotlin.test.assertFalse
+import kotlin.test.assertNotEquals
 import kotlin.test.assertTrue
 
 @JsGradlePluginTests
@@ -1113,6 +1114,10 @@ abstract class AbstractKotlin2JsGradlePluginIT(protected val irBackend: Boolean)
     @GradleTest
     fun testMochaFailedModuleNotFound(gradleVersion: GradleVersion) {
         project("kotlin-js-nodejs-project", gradleVersion) {
+            build("nodeTest") {
+                assertOutputDoesNotContain("##teamcity[")
+            }
+
             projectPath.resolve("src/test/kotlin/Tests.kt").appendText(
                 "\n" + """
                 |

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/internal/testing/TCServiceMessagesTestExecutor.kt

@@ -15,6 +15,7 @@ import org.gradle.process.internal.ExecHandle
 import org.gradle.process.internal.ExecHandleFactory
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
+import java.io.OutputStream
 
 open class TCServiceMessagesTestExecutionSpec(
     val forkOptions: ProcessForkOptions,
@@ -53,6 +54,17 @@ class TCServiceMessagesTestExecutor(
                 val exec = execHandleFactory.newExec()
                 spec.forkOptions.copyTo(exec)
                 exec.args = spec.args
+                // We do not need output by dry run of tests
+                exec.standardOutput = object : OutputStream() {
+                    override fun write(b: Int) {
+                        // do nothing
+                    }
+                }
+                exec.errorOutput = object : OutputStream() {
+                    override fun write(b: Int) {
+                        // do nothing
+                    }
+                }
                 execHandle = exec.build()
 
                 execHandle.start()