[Gradle][MPP] Ensure there are no KLIBs discriminated by duplicated unique_name

^KT-63573

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

@@ -39,20 +39,71 @@ class KlibResolverInsideCompilerIT : KGPBaseTest() {
         )
     }
 
+    @DisplayName("KLIBs with duplicated unique_name not discriminated, library + composite build, LV=1.9 (KT-63573)")
+    @GradleTest
+    fun testKlibsWithDuplicatedUniqueNameNotDiscriminated1(gradleVersion: GradleVersion, @TempDir tempDir: Path) {
+        buildLibraryAndCompositeProjectForKT63573(
+            baseDir = "mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-and-composite-build",
+            languageVersion = EnforcedLanguageVersion.K1,
+            tempDir, gradleVersion
+        )
+    }
+
+    @DisplayName("KLIBs with duplicated unique_name not discriminated, library + composite build, LV=2.0 (KT-63573)")
+    @GradleTest
+    fun testKlibsWithDuplicatedUniqueNameNotDiscriminated2(gradleVersion: GradleVersion, @TempDir tempDir: Path) {
+        buildLibraryAndCompositeProjectForKT63573(
+            baseDir = "mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-and-composite-build",
+            languageVersion = EnforcedLanguageVersion.K2,
+            tempDir, gradleVersion
+        )
+    }
+
+    @DisplayName("KLIBs with duplicated unique_name not discriminated, library x2 + app, LV=1.9 (KT-63573)")
+    @GradleTest
+    fun testKlibsWithDuplicatedUniqueNameNotDiscriminated3(gradleVersion: GradleVersion, @TempDir tempDir: Path) {
+        buildTwoLibrariesAndAppForKT63573(
+            baseDir = "mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-x2-and-app",
+            languageVersion = EnforcedLanguageVersion.K1,
+            tempDir, gradleVersion
+        )
+    }
+
+    @DisplayName("KLIBs with duplicated unique_name not discriminated, library x2 + app, LV=2.0 (KT-63573)")
+    @GradleTest
+    fun testKlibsWithDuplicatedUniqueNameNotDiscriminated4(gradleVersion: GradleVersion, @TempDir tempDir: Path) {
+        buildTwoLibrariesAndAppForKT63573(
+            baseDir = "mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-x2-and-app",
+            languageVersion = EnforcedLanguageVersion.K2,
+            tempDir, gradleVersion
+        )
+    }
+
     private fun createLocalRepo(tempDir: Path): Path {
         val localRepo = tempDir.resolve("local-repo").toAbsolutePath()
         Files.createDirectories(localRepo)
         return localRepo
     }
 
+    private enum class EnforcedLanguageVersion { K1, K2 }
+
     private fun buildProject(
         baseDir: String,
         projectName: String,
         gradleVersion: GradleVersion,
         localRepoDir: Path,
+        languageVersion: EnforcedLanguageVersion? = null,
         buildTask: String = "build",
     ) {
-        project("$baseDir/$projectName", gradleVersion, localRepoDir = localRepoDir) {
+        val buildOptions = with(defaultBuildOptions) {
+            when (languageVersion) {
+                EnforcedLanguageVersion.K1 -> copyEnsuringK1()
+                EnforcedLanguageVersion.K2 -> copyEnsuringK2()
+                else -> this
+            }
+        }
+
+        project("$baseDir/$projectName", gradleVersion, buildOptions, localRepoDir = localRepoDir) {
             build(buildTask)
         }
     }
@@ -99,4 +150,29 @@ class KlibResolverInsideCompilerIT : KGPBaseTest() {
 
         buildProject(baseDir, "app", gradleVersion, localRepoDir)
     }
+
+    private fun buildLibraryAndCompositeProjectForKT63573(
+        baseDir: String,
+        languageVersion: EnforcedLanguageVersion,
+        tempDir: Path,
+        gradleVersion: GradleVersion,
+    ) {
+        val localRepoDir = createLocalRepo(tempDir)
+
+        buildAndPublishProject(baseDir, "external-library", gradleVersion, localRepoDir)
+        buildProject(baseDir, "composite-project", gradleVersion, localRepoDir, languageVersion, ":app:build")
+    }
+
+    private fun buildTwoLibrariesAndAppForKT63573(
+        baseDir: String,
+        languageVersion: EnforcedLanguageVersion,
+        tempDir: Path,
+        gradleVersion: GradleVersion,
+    ) {
+        val localRepoDir = createLocalRepo(tempDir)
+
+        buildAndPublishProject(baseDir, "external-library1", gradleVersion, localRepoDir)
+        buildAndPublishProject(baseDir, "external-library2", gradleVersion, localRepoDir)
+        buildProject(baseDir, "app", gradleVersion, localRepoDir, languageVersion, "build")
+    }
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-and-composite-build/composite-project/app/build.gradle.kts

@@ -0,0 +1,29 @@
+plugins {
+    id("org.jetbrains.kotlin.multiplatform")
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+    maven { url = uri("<localRepo>") }
+}
+
+kotlin {
+    jvm()
+    js {
+        nodejs()
+        binaries.executable()
+    }
+    linuxX64 {
+        binaries.executable()
+    }
+
+    sourceSets {
+        commonMain {
+            dependencies {
+                api("org.sample.kt62515.foo:libraryWithNonUniqueName:1.0")
+                api(project(":libraryWithNonUniqueName"))
+            }
+        }
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-and-composite-build/composite-project/app/src/commonMain/kotlin/app.kt

@@ -0,0 +1,5 @@
+fun main() {
+    println("Hello from App!")
+    org.sample.kt62515.foo.greet()
+    org.sample.kt62515.bar.greet()
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-and-composite-build/composite-project/libraryWithNonUniqueName/build.gradle.kts

@@ -0,0 +1,19 @@
+plugins {
+    id("org.jetbrains.kotlin.multiplatform")
+}
+
+group = "org.sample.kt62515.bar"
+version = 1.0
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+kotlin {
+    jvm()
+    js {
+        nodejs()
+    }
+    linuxX64()
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-and-composite-build/composite-project/libraryWithNonUniqueName/src/commonMain/kotlin/library.kt

@@ -0,0 +1,5 @@
+package org.sample.kt62515.bar
+
+fun greet() {
+    println("hello from org.sample.kt62515.bar:libraryWithNonUniqueName")
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-and-composite-build/composite-project/settings.gradle.kts

@@ -0,0 +1,5 @@
+rootProject.name = "composite-project"
+
+include(":libraryWithNonUniqueName")
+include(":app")
+

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-and-composite-build/external-library/build.gradle.kts

@@ -0,0 +1,26 @@
+plugins {
+    id("org.jetbrains.kotlin.multiplatform")
+    `maven-publish`
+}
+
+group = "org.sample.kt62515.foo"
+version = 1.0
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+publishing {
+    repositories {
+        maven { url = uri("<localRepo>") }
+    }
+}
+
+kotlin {
+    jvm()
+    js {
+        nodejs()
+    }
+    linuxX64()
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-and-composite-build/external-library/settings.gradle.kts

@@ -0,0 +1 @@
+rootProject.name = "libraryWithNonUniqueName"

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-and-composite-build/external-library/src/commonMain/kotlin/library.kt

@@ -0,0 +1,5 @@
+package org.sample.kt62515.foo
+
+fun greet() {
+    println("hello from org.sample.kt62515.foo:libraryWithNonUniqueName")
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-x2-and-app/app/build.gradle.kts

@@ -0,0 +1,29 @@
+plugins {
+    id("org.jetbrains.kotlin.multiplatform")
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+    maven { url = uri("<localRepo>") }
+}
+
+kotlin {
+    jvm()
+    js {
+        nodejs()
+        binaries.executable()
+    }
+    linuxX64 {
+        binaries.executable()
+    }
+
+    sourceSets {
+        commonMain {
+            dependencies {
+                api("org.sample.kt62515.foo:libraryWithNonUniqueName:1.0")
+                api("org.sample.kt62515.bar:libraryWithNonUniqueName:1.0")
+            }
+        }
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-x2-and-app/app/settings.gradle.kts

@@ -0,0 +1,2 @@
+rootProject.name = "app"
+

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-x2-and-app/app/src/commonMain/kotlin/app.kt

@@ -0,0 +1,5 @@
+fun main() {
+    println("Hello from App!")
+    org.sample.kt62515.foo.greet()
+    org.sample.kt62515.bar.greet()
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-x2-and-app/external-library1/build.gradle.kts

@@ -0,0 +1,26 @@
+plugins {
+    id("org.jetbrains.kotlin.multiplatform")
+    `maven-publish`
+}
+
+group = "org.sample.kt62515.foo"
+version = 1.0
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+publishing {
+    repositories {
+        maven { url = uri("<localRepo>") }
+    }
+}
+
+kotlin {
+    jvm()
+    js {
+        nodejs()
+    }
+    linuxX64()
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-x2-and-app/external-library1/settings.gradle.kts

@@ -0,0 +1 @@
+rootProject.name = "libraryWithNonUniqueName"

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-x2-and-app/external-library1/src/commonMain/kotlin/library.kt

@@ -0,0 +1,5 @@
+package org.sample.kt62515.foo
+
+fun greet() {
+    println("hello from org.sample.kt62515.foo:libraryWithNonUniqueName")
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-x2-and-app/external-library2/build.gradle.kts

@@ -0,0 +1,26 @@
+plugins {
+    id("org.jetbrains.kotlin.multiplatform")
+    `maven-publish`
+}
+
+group = "org.sample.kt62515.bar"
+version = 1.0
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+publishing {
+    repositories {
+        maven { url = uri("<localRepo>") }
+    }
+}
+
+kotlin {
+    jvm()
+    js {
+        nodejs()
+    }
+    linuxX64()
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-x2-and-app/external-library2/settings.gradle.kts

@@ -0,0 +1 @@
+rootProject.name = "libraryWithNonUniqueName"

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/mpp-klib-resolver-inside-compiler/klibs-with-duplicated-unique_name-library-x2-and-app/external-library2/src/commonMain/kotlin/library.kt

@@ -0,0 +1,5 @@
+package org.sample.kt62515.bar
+
+fun greet() {
+    println("hello from org.sample.kt62515.bar:libraryWithNonUniqueName")
+}