Fixed import of MPP project with single Android target

#KT-34639 Fixed

idea/idea-gradle/tests/org/jetbrains/kotlin/gradle/NewMultiplatformProjectImportingTest.kt

@@ -8,10 +8,7 @@ package org.jetbrains.kotlin.gradle
 import com.intellij.openapi.roots.DependencyScope
 import org.jetbrains.jps.model.java.JavaResourceRootType
 import org.jetbrains.jps.model.java.JavaSourceRootType
-import org.jetbrains.kotlin.config.ResourceKotlinRootType
-import org.jetbrains.kotlin.config.SourceKotlinRootType
-import org.jetbrains.kotlin.config.TestResourceKotlinRootType
-import org.jetbrains.kotlin.config.TestSourceKotlinRootType
+import org.jetbrains.kotlin.config.*
 import org.jetbrains.kotlin.idea.codeInsight.gradle.MultiplePluginVersionGradleImportingTestCase
 import org.jetbrains.kotlin.platform.CommonPlatforms
 import org.jetbrains.kotlin.platform.js.JsPlatforms
@@ -429,6 +426,63 @@ class NewMultiplatformProjectImportingTest : MultiplePluginVersionGradleImportin
         }
     }
 
+
+    @Test
+    fun testSingleAndroidTarget() {
+        configureByFiles()
+        importProject()
+        checkProjectStructure(exhaustiveDependencyList = false) {
+            module("app") {
+                sourceFolder("app/src/androidAndroidTest/kotlin", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/androidAndroidTestDebug/kotlin", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/androidDebug/kotlin", JavaSourceRootType.SOURCE)
+                sourceFolder("app/src/androidDebugAndroidTest/kotlin", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/androidDebugUnitTest/kotlin", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/androidMain/kotlin", JavaSourceRootType.SOURCE)
+                sourceFolder("app/src/androidRelease/kotlin", JavaSourceRootType.SOURCE)
+                sourceFolder("app/src/androidReleaseUnitTest/kotlin", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/androidTest/java", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/androidTest/kotlin", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/androidTestDebug/java", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/androidTestDebug/kotlin", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/androidTestRelease/kotlin", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/debug/java", JavaSourceRootType.SOURCE)
+                sourceFolder("app/src/debug/kotlin", JavaSourceRootType.SOURCE)
+                sourceFolder("app/src/main/java", JavaSourceRootType.SOURCE)
+                sourceFolder("app/src/main/kotlin", JavaSourceRootType.SOURCE)
+                sourceFolder("app/src/release/java", JavaSourceRootType.SOURCE)
+                sourceFolder("app/src/release/kotlin", JavaSourceRootType.SOURCE)
+                sourceFolder("app/src/test/java", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/test/kotlin", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/testDebug/java", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/testDebug/kotlin", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/testRelease/java", JavaSourceRootType.TEST_SOURCE)
+                sourceFolder("app/src/testRelease/kotlin", JavaSourceRootType.TEST_SOURCE)
+
+                sourceFolder("app/src/androidAndroidTest/resources", JavaResourceRootType.TEST_RESOURCE)
+                sourceFolder("app/src/androidAndroidTestDebug/resources", JavaResourceRootType.TEST_RESOURCE)
+                sourceFolder("app/src/androidDebug/resources", JavaResourceRootType.RESOURCE)
+                sourceFolder("app/src/androidDebugAndroidTest/resources", JavaResourceRootType.TEST_RESOURCE)
+                sourceFolder("app/src/androidDebugUnitTest/resources", JavaResourceRootType.TEST_RESOURCE)
+                sourceFolder("app/src/androidMain/resources", JavaResourceRootType.RESOURCE)
+                sourceFolder("app/src/androidRelease/resources", JavaResourceRootType.RESOURCE)
+                sourceFolder("app/src/androidReleaseUnitTest/resources", JavaResourceRootType.TEST_RESOURCE)
+                sourceFolder("app/src/androidTest/resources", JavaResourceRootType.TEST_RESOURCE)
+                sourceFolder("app/src/androidTestDebug/resources", JavaResourceRootType.TEST_RESOURCE)
+                sourceFolder("app/src/androidTestRelease/resources", JavaResourceRootType.TEST_RESOURCE)
+            }
+            module("app_commonMain") {
+                sourceFolder("app/src/commonMain/kotlin", SourceKotlinRootType)
+                sourceFolder("app/src/commonMain/resources", ResourceKotlinRootType)
+            }
+            module("app_commonTest") {
+                sourceFolder("app/src/commonTest/kotlin", TestSourceKotlinRootType)
+                sourceFolder("app/src/commonTest/resources", TestResourceKotlinRootType)
+            }
+            module("project")
+        }
+    }
+
     @Test
     fun testDependencyOnRoot() {
         configureByFiles()

idea/kotlin-gradle-tooling/src/KotlinMPPGradleModelBuilder.kt

@@ -668,6 +668,18 @@ class KotlinMPPGradleModelBuilder : ModelBuilderService {
         }
 
         for (sourceSet in sourceSets.values) {
+            if (!isHMPPEnabled) {
+                val name = sourceSet.name
+                if (name == KotlinSourceSet.COMMON_MAIN_SOURCE_SET_NAME) {
+                    sourceSet.isTestModule = false
+                    continue
+                }
+                if (name == KotlinSourceSet.COMMON_TEST_SOURCE_SET_NAME) {
+                    sourceSet.isTestModule = true
+                    continue
+                }
+            }
+
             (allSourceSetToCompilations[sourceSet]?.all { it.isTestModule }
                 ?: if (!isHMPPEnabled && sourceSet.name == KotlinSourceSet.COMMON_TEST_SOURCE_SET_NAME) true else null)?.let { isTest ->
                 sourceSet.isTestModule = isTest

idea/kotlin-gradle-tooling/src/KotlinMPPGradleModelImpl.kt

@@ -242,7 +242,13 @@ class KotlinPlatformContainerImpl() : KotlinPlatformContainer {
     override fun supports(simplePlatform: KotlinPlatform): Boolean = platforms.contains(simplePlatform)
 
     override fun addSimplePlatforms(platforms: Collection<KotlinPlatform>) {
-        (myPlatforms ?: HashSet<KotlinPlatform>().apply { myPlatforms = this }).addAll(platforms)
+        (myPlatforms ?: HashSet<KotlinPlatform>().apply { myPlatforms = this }).let {
+            it.addAll(platforms)
+            if (it.contains(KotlinPlatform.COMMON)) {
+                it.clear()
+                it.addAll(defaultCommonPlatform)
+            }
+        }
     }
 }
 

idea/testData/gradle/newMultiplatformImport/singleAndroidTarget/app/build.gradle

@@ -0,0 +1,74 @@
+buildscript {
+    repositories {
+        mavenCentral()
+        maven { url 'https://dl.bintray.com/kotlin/kotlin-dev' }
+    }
+
+    dependencies {
+        apply from: "../include.gradle"
+        def kotlinVersion = gradleKotlinPluginVersion('1.3.50')
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
+    }
+}
+
+apply plugin: 'kotlin-multiplatform'
+repositories {
+    google()
+    jcenter()
+    maven { url 'https://dl.bintray.com/kotlin/kotlin-dev' }
+    mavenCentral()
+}
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId 'org.jetbrains.kotlin.mpp_app_android'
+        minSdkVersion 15
+        targetSdkVersion 28
+        versionCode 1
+        versionName '1.0'
+        testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+}
+
+kotlin {
+    android("android")
+    sourceSets {
+        commonMain {
+            dependencies {
+                implementation kotlin('stdlib-common')
+            }
+        }
+        commonTest {
+            dependencies {
+        		implementation kotlin('test-common')
+        		implementation kotlin('test-annotations-common')
+            }
+        }
+        androidMain {
+            dependencies {
+                implementation kotlin('stdlib')
+            }
+        }
+        androidTest {
+            dependencies {
+                implementation kotlin('test')
+                implementation kotlin('test-junit')
+            }
+        }
+    }
+}

idea/testData/gradle/newMultiplatformImport/singleAndroidTarget/build.gradle

@@ -0,0 +1,13 @@
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.2.1'
+    }
+}
+repositories {
+    google()
+    jcenter()
+}

idea/testData/gradle/newMultiplatformImport/singleAndroidTarget/gradle.properties

@@ -0,0 +1 @@
+kotlin.code.style=official

idea/testData/gradle/newMultiplatformImport/singleAndroidTarget/settings.gradle

@@ -0,0 +1,10 @@
+pluginManagement {
+    repositories {
+        maven { url 'https://dl.bintray.com/kotlin/kotlin-dev' }
+
+        mavenCentral()
+
+        maven { url 'https://plugins.gradle.org/m2/' }
+    }
+}
+include ':app'