[JS IR] Test the incremental rebuild after an error from JS IR BE

Move JS IR BE IC integration tests in a separate file

 Test case for KT-56282

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

@@ -9,11 +9,9 @@ import com.google.gson.Gson
 import com.google.gson.JsonNull
 import com.google.gson.JsonObject
 import org.gradle.api.logging.LogLevel
-import org.gradle.api.logging.configuration.WarningMode
 import org.gradle.testkit.runner.BuildResult
 import org.gradle.util.GradleVersion
 import org.jetbrains.kotlin.gradle.plugin.KotlinJsCompilerType
-import org.jetbrains.kotlin.gradle.plugin.sources.METADATA_CONFIGURATION_NAME_SUFFIX
 import org.jetbrains.kotlin.gradle.targets.js.ir.KLIB_TYPE
 import org.jetbrains.kotlin.gradle.targets.js.npm.NpmProject
 import org.jetbrains.kotlin.gradle.targets.js.npm.NpmProjectModules
@@ -128,132 +126,6 @@ class Kotlin2JsIrGradlePluginIT : AbstractKotlin2JsGradlePluginIT(true) {
         }
     }
 
-    @DisplayName("Check IR incremental cache invalidation by compiler args")
-    @GradleTest
-    fun testJsIrIncrementalCacheInvalidationByArgs(gradleVersion: GradleVersion) {
-        project("kotlin2JsIrICProject", gradleVersion) {
-            val buildConfig = buildGradleKts.readText()
-
-            fun setLazyInitializationArg(value: Boolean) {
-                buildGradleKts.writeText(buildConfig)
-                buildGradleKts.appendText(
-                    """
-                    |
-                    |tasks.named<org.jetbrains.kotlin.gradle.targets.js.ir.KotlinJsIrLink>("compileDevelopmentExecutableKotlinJs") {
-                    |    kotlinOptions {
-                    |        freeCompilerArgs += "-Xir-property-lazy-initialization=$value"
-                    |   }
-                    |}
-                    """.trimMargin()
-                )
-            }
-
-            fun String.testScriptOutLines() = this.lines().mapNotNull {
-                val trimmed = it.removePrefix(">>> TEST OUT: ")
-                if (trimmed == it) null else trimmed
-            }
-
-            // -Xir-property-lazy-initialization default is true
-            build("nodeRun") {
-                assertTasksExecuted(":compileDevelopmentExecutableKotlinJs")
-                assertEquals(listOf("Hello, Gradle."), output.testScriptOutLines())
-            }
-
-            setLazyInitializationArg(false)
-            build("nodeRun") {
-                assertTasksExecuted(":compileDevelopmentExecutableKotlinJs")
-                assertEquals(listOf("TOP LEVEL!", "Hello, Gradle."), output.testScriptOutLines())
-            }
-
-            setLazyInitializationArg(true)
-            build("nodeRun") {
-                assertTasksExecuted(":compileDevelopmentExecutableKotlinJs")
-                assertEquals(listOf("Hello, Gradle."), output.testScriptOutLines())
-            }
-        }
-    }
-
-    @DisplayName("incremental compilation for JS IR consider multiple artifacts in one project")
-    @GradleTest
-    fun testJsIrIncrementalMultipleArtifacts(gradleVersion: GradleVersion) {
-        project("kotlin-js-ir-ic-multiple-artifacts", gradleVersion) {
-            build("compileDevelopmentExecutableKotlinJs") {
-                val cacheDir = projectPath.resolve("app/build/klib/cache/").toFile()
-                val cacheRootDirName = cacheDir.list()?.singleOrNull()
-                assertTrue("Lib cache root dir should contain 1 element 'version.hash'") {
-                    cacheRootDirName?.startsWith("version.") ?: false
-                }
-                val cacheRootDir = cacheDir.resolve(cacheRootDirName!!)
-                val klibCacheDirs = cacheRootDir.list()
-                // 2 for lib.klib + 1 for stdlib  + 1 for main
-                assertEquals(4, klibCacheDirs?.size, "cache should contain 4 dirs")
-
-                val libKlibCacheDirs = klibCacheDirs?.filter { dir -> dir.startsWith("lib.klib.") }
-                assertEquals(2, libKlibCacheDirs?.size, "cache should contain 2 dirs for lib.klib")
-
-                var lib = false
-                var libOther = false
-
-                cacheRootDir.listFiles()!!
-                    .forEach {
-                        it.listFiles()!!
-                            .filter { it.isFile }
-                            .forEach {
-                                val text = it.readText()
-                                // cache keeps the js code of compiled module, this substring from that js code
-                                if (text.contains("root['kotlin-js-ir-ic-multiple-artifacts-lib']")) {
-                                    if (lib) {
-                                        error("lib should be only once in cache")
-                                    }
-                                    lib = true
-                                }
-                                // cache keeps the js code of compiled module, this substring from that js code
-                                if (text.contains("root['kotlin-js-ir-ic-multiple-artifacts-lib-other']")) {
-                                    if (libOther) {
-                                        error("libOther should be only once in cache")
-                                    }
-                                    libOther = true
-                                }
-                            }
-
-                    }
-
-                assertTrue("lib and libOther should be once in cache") {
-                    lib && libOther
-                }
-                assertTasksExecuted(":app:compileDevelopmentExecutableKotlinJs")
-            }
-        }
-    }
-
-    @DisplayName("Remove unused dependency from klib")
-    @GradleTest
-    fun testJsIrIncrementalKlibRemoveUnusedDependency(gradleVersion: GradleVersion) {
-        project("kotlin-js-ir-ic-remove-unused-dep", gradleVersion) {
-            val appBuildGradleKts = subProject("app").buildGradleKts
-
-            val buildGradleKtsWithoutDependency = appBuildGradleKts.readText()
-            appBuildGradleKts.appendText(
-                """
-                |
-                |dependencies {
-                |    implementation(project(":lib"))
-                |}
-                |
-                """.trimMargin()
-            )
-
-            build("compileDevelopmentExecutableKotlinJs") {
-                assertTasksExecuted(":app:compileDevelopmentExecutableKotlinJs")
-            }
-
-            appBuildGradleKts.writeText(buildGradleKtsWithoutDependency)
-            build("compileDevelopmentExecutableKotlinJs") {
-                assertTasksExecuted(":app:compileDevelopmentExecutableKotlinJs")
-            }
-        }
-    }
-
     @DisplayName("falsify kotlin js compiler args")
     @GradleTest
     fun testFalsifyKotlinJsCompilerArgs(gradleVersion: GradleVersion) {
@@ -1545,10 +1417,11 @@ abstract class AbstractKotlin2JsGradlePluginIT(protected val irBackend: Boolean)
                 Gson().fromJson(it.readText(), PackageJson::class.java)
             }
 
-    @DisplayName("incremental compilation with multiple js modules after compilation error works")
+    @DisplayName("incremental compilation with multiple js modules after frontend compilation error works")
     @GradleTest
     fun testIncrementalCompilationWithMultipleModulesAfterCompilationError(gradleVersion: GradleVersion) {
-        project("kotlin-js-ir-ic-multiple-artifacts", gradleVersion) {
+        val buildOptions = defaultBuildOptions.copy(jsOptions = defaultJsOptions.copy(incrementalJsKlib = true))
+        project("kotlin-js-ir-ic-multiple-artifacts", gradleVersion, buildOptions = buildOptions) {
             build("compileKotlinJs")
 
             val libKt = subProject("lib").kotlinSourcesDir().resolve("Lib.kt") ?: error("No Lib.kt file in test project")
@@ -1558,7 +1431,7 @@ abstract class AbstractKotlin2JsGradlePluginIT(protected val irBackend: Boolean)
             buildAndFail("compileKotlinJs")
             libKt.modify { it.replace("func answe", "fun answer") } // revert compilation error
             appKt.modify { it.replace("Sheldon:", "Sheldon :") } // some change for incremental compilation
-            build("compileKotlinJs", buildOptions = defaultBuildOptions.copy(logLevel = LogLevel.DEBUG)) {
+            build("compileKotlinJs", buildOptions = buildOptions.copy(logLevel = LogLevel.DEBUG)) {
                 assertOutputContains(USING_JS_INCREMENTAL_COMPILATION_MESSAGE)
                 assertTasksUpToDate(":lib:compileKotlinJs")
                 assertTasksExecuted(":app:compileKotlinJs")

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/Kotlin2JsIrBeIncrementalCompilationIT.kt

@@ -0,0 +1,201 @@
+/*
+ * 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 org.jetbrains.kotlin.gradle
+
+import org.gradle.util.GradleVersion
+import org.jetbrains.kotlin.gradle.plugin.KotlinJsCompilerType
+import org.jetbrains.kotlin.gradle.testbase.*
+import org.junit.jupiter.api.DisplayName
+import kotlin.io.path.appendText
+import kotlin.io.path.readText
+import kotlin.io.path.writeText
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+import kotlin.test.assertTrue
+
+@DisplayName("Incremental compilation tests for Kotlin JS IR backend")
+@JsGradlePluginTests
+class Kotlin2JsIrBeIncrementalCompilationIT : KGPBaseTest() {
+    override val defaultBuildOptions = BuildOptions(
+        jsOptions = BuildOptions.JsOptions(
+            jsCompilerType = KotlinJsCompilerType.IR,
+            incrementalJsKlib = true,
+            incrementalJsIr = true
+        )
+    )
+
+    @DisplayName("Test rebuild after backend error")
+    @GradleTest
+    fun testRebuildAfterError(gradleVersion: GradleVersion) {
+        project("kotlin-js-ir-ic-rebuild-after-error", gradleVersion) {
+            fun readCacheFiles(): Map<String, Int> {
+                val cacheFiles = mutableMapOf<String, Int>()
+                projectPath.resolve("app/build/klib/cache/").toFile().walk().forEach { cachedFile ->
+                    if (cachedFile.isFile) {
+                        cacheFiles[cachedFile.absolutePath] = cachedFile.readBytes().contentHashCode()
+                    }
+                }
+                return cacheFiles
+            }
+
+            val srcFile = projectPath.resolve("app/src/main/kotlin/App.kt").toFile()
+            val badCode = srcFile.readText()
+
+            var successfulBuildCacheFiles = emptyMap<String, Int>()
+            srcFile.appendText("\nfun unknownFunction() = 1\n")
+            build("nodeDevelopmentRun") {
+                assertTasksExecuted(":app:compileDevelopmentExecutableKotlinJs")
+                assertOutputContains("Hello, World!")
+                successfulBuildCacheFiles = readCacheFiles()
+                assertTrue("Cache should not be empty after successful build") { successfulBuildCacheFiles.isNotEmpty() }
+            }
+
+            srcFile.writeText(badCode)
+            for (i in 0..1) {
+                buildAndFail("nodeDevelopmentRun") {
+                    assertTasksFailed(":app:compileDevelopmentExecutableKotlinJs")
+                    val failedBuildCacheFiles = readCacheFiles()
+                    assertEquals(successfulBuildCacheFiles, failedBuildCacheFiles, "The cache files should not be modified")
+                }
+            }
+
+            srcFile.writeText(badCode.replace("Hello, World!", "Hello, Kotlin!") + "\nfun unknownFunction() = 2\n")
+            build("nodeDevelopmentRun") {
+                assertTasksExecuted(":app:compileDevelopmentExecutableKotlinJs")
+                assertOutputContains("Hello, Kotlin!")
+                val successfulRebuildCacheFiles = readCacheFiles()
+                assertEquals(successfulBuildCacheFiles.size, successfulRebuildCacheFiles.size, "The number of files must be the same")
+                assertNotEquals(successfulBuildCacheFiles, successfulRebuildCacheFiles, "The cache files should be modified")
+            }
+        }
+    }
+
+    @DisplayName("Test cache invalidation after modifying compiler args")
+    @GradleTest
+    fun testCacheInvalidationAfterCompilerArgModifying(gradleVersion: GradleVersion) {
+        project("kotlin2JsIrICProject", gradleVersion) {
+            val buildConfig = buildGradleKts.readText()
+
+            fun setLazyInitializationArg(value: Boolean) {
+                buildGradleKts.writeText(buildConfig)
+                buildGradleKts.appendText(
+                    """
+                    |
+                    |tasks.named<org.jetbrains.kotlin.gradle.targets.js.ir.KotlinJsIrLink>("compileDevelopmentExecutableKotlinJs") {
+                    |    kotlinOptions {
+                    |        freeCompilerArgs += "-Xir-property-lazy-initialization=$value"
+                    |   }
+                    |}
+                    """.trimMargin()
+                )
+            }
+
+            fun String.testScriptOutLines() = this.lines().mapNotNull {
+                val trimmed = it.removePrefix(">>> TEST OUT: ")
+                if (trimmed == it) null else trimmed
+            }
+
+            // -Xir-property-lazy-initialization default is true
+            build("nodeRun") {
+                assertTasksExecuted(":compileDevelopmentExecutableKotlinJs")
+                assertEquals(listOf("Hello, Gradle."), output.testScriptOutLines())
+            }
+
+            setLazyInitializationArg(false)
+            build("nodeRun") {
+                assertTasksExecuted(":compileDevelopmentExecutableKotlinJs")
+                assertEquals(listOf("TOP LEVEL!", "Hello, Gradle."), output.testScriptOutLines())
+            }
+
+            setLazyInitializationArg(true)
+            build("nodeRun") {
+                assertTasksExecuted(":compileDevelopmentExecutableKotlinJs")
+                assertEquals(listOf("Hello, Gradle."), output.testScriptOutLines())
+            }
+        }
+    }
+
+    @DisplayName("Test multiple artifacts in one project")
+    @GradleTest
+    fun testMultipleArtifacts(gradleVersion: GradleVersion) {
+        project("kotlin-js-ir-ic-multiple-artifacts", gradleVersion) {
+            build("compileDevelopmentExecutableKotlinJs") {
+                val cacheDir = projectPath.resolve("app/build/klib/cache/").toFile()
+                val cacheRootDirName = cacheDir.list()?.singleOrNull()
+                assertTrue("Lib cache root dir should contain 1 element 'version.hash'") {
+                    cacheRootDirName?.startsWith("version.") ?: false
+                }
+                val cacheRootDir = cacheDir.resolve(cacheRootDirName!!)
+                val klibCacheDirs = cacheRootDir.list()
+                // 2 for lib.klib + 1 for stdlib  + 1 for main
+                assertEquals(4, klibCacheDirs?.size, "cache should contain 4 dirs")
+
+                val libKlibCacheDirs = klibCacheDirs?.filter { dir -> dir.startsWith("lib.klib.") }
+                assertEquals(2, libKlibCacheDirs?.size, "cache should contain 2 dirs for lib.klib")
+
+                var lib = false
+                var libOther = false
+
+                cacheRootDir.listFiles()!!
+                    .forEach {
+                        it.listFiles()!!
+                            .filter { it.isFile }
+                            .forEach {
+                                val text = it.readText()
+                                // cache keeps the js code of compiled module, this substring from that js code
+                                if (text.contains("root['kotlin-js-ir-ic-multiple-artifacts-lib']")) {
+                                    if (lib) {
+                                        error("lib should be only once in cache")
+                                    }
+                                    lib = true
+                                }
+                                // cache keeps the js code of compiled module, this substring from that js code
+                                if (text.contains("root['kotlin-js-ir-ic-multiple-artifacts-lib-other']")) {
+                                    if (libOther) {
+                                        error("libOther should be only once in cache")
+                                    }
+                                    libOther = true
+                                }
+                            }
+
+                    }
+
+                assertTrue("lib and libOther should be once in cache") {
+                    lib && libOther
+                }
+                assertTasksExecuted(":app:compileDevelopmentExecutableKotlinJs")
+            }
+        }
+    }
+
+    @DisplayName("Test removing unused dependency from klib")
+    @GradleTest
+    fun testRemoveUnusedDependency(gradleVersion: GradleVersion) {
+        project("kotlin-js-ir-ic-remove-unused-dep", gradleVersion) {
+            val appBuildGradleKts = subProject("app").buildGradleKts
+
+            val buildGradleKtsWithoutDependency = appBuildGradleKts.readText()
+            appBuildGradleKts.appendText(
+                """
+                |
+                |dependencies {
+                |    implementation(project(":lib"))
+                |}
+                |
+                """.trimMargin()
+            )
+
+            build("compileDevelopmentExecutableKotlinJs") {
+                assertTasksExecuted(":app:compileDevelopmentExecutableKotlinJs")
+            }
+
+            appBuildGradleKts.writeText(buildGradleKtsWithoutDependency)
+            build("compileDevelopmentExecutableKotlinJs") {
+                assertTasksExecuted(":app:compileDevelopmentExecutableKotlinJs")
+            }
+        }
+    }
+}

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

@@ -57,6 +57,7 @@ data class BuildOptions(
         val jsCompilerType: KotlinJsCompilerType? = null,
         val incrementalJs: Boolean? = null,
         val incrementalJsKlib: Boolean? = null,
+        val incrementalJsIr: Boolean? = null,
         val compileNoWarn: Boolean = true
     )
 
@@ -119,6 +120,7 @@ data class BuildOptions(
         if (jsOptions != null) {
             jsOptions.incrementalJs?.let { arguments.add("-Pkotlin.incremental.js=$it") }
             jsOptions.incrementalJsKlib?.let { arguments.add("-Pkotlin.incremental.js.klib=$it") }
+            jsOptions.incrementalJsIr?.let { arguments.add("-Pkotlin.incremental.js.ir=$it") }
             jsOptions.useIrBackend?.let { arguments.add("-Pkotlin.js.useIrBackend=$it") }
             jsOptions.jsCompilerType?.let { arguments.add("-Pkotlin.js.compiler=$it") }
             // because we have legacy compiler tests, we need nowarn for compiler testing

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-ir-ic-multiple-artifacts/gradle.properties

@@ -1,3 +1 @@
-kotlin.incremental.js.klib=true
-kotlin.incremental.js.ir=true
 kotlin.daemon.jvmargs=-Dkotlin.js.compiler.legacy.force_enabled=true

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-ir-ic-rebuild-after-error/app/build.gradle.kts

@@ -0,0 +1,11 @@
+plugins {
+    kotlin("js")
+}
+
+kotlin {
+    js {
+        nodejs {
+        }
+        binaries.executable()
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-ir-ic-rebuild-after-error/app/src/main/kotlin/App.kt

@@ -0,0 +1,17 @@
+/*
+ * 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 com.example
+
+private fun someFunction(x: Any? = null) {}
+
+fun getSomething(x: dynamic) = with(x) {
+    someFunction(::unknownFunction)
+    "Hello, World!"
+}
+
+fun main() {
+    println(getSomething(null))
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-ir-ic-rebuild-after-error/build.gradle.kts

@@ -0,0 +1,13 @@
+plugins {
+    kotlin("js").apply(false)
+}
+
+group = "com.example"
+version = "1.0"
+
+allprojects {
+    repositories {
+        mavenLocal()
+        mavenCentral()
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-ir-ic-rebuild-after-error/settings.gradle

@@ -0,0 +1,3 @@
+rootProject.name = "kotlin-js-ir-ic-rebuild-after-error"
+
+include("app")

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-ir-ic-remove-unused-dep/gradle.properties

@@ -1,2 +0,0 @@
-kotlin.incremental.js.klib=true
-kotlin.incremental.js.ir=true

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin2JsIrICProject/gradle.properties

@@ -1,3 +0,0 @@
-kotlin.code.style=official
-kotlin.incremental.js.ir=true
-kotlin.incremental.js.klib=true