[Gradle, JS] Add test on dependencies clash

^KT-40093 fixed

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

@@ -9,10 +9,7 @@ import com.google.gson.Gson
 import org.gradle.api.logging.LogLevel
 import org.jetbrains.kotlin.gradle.plugin.KotlinJsCompilerType
 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
-import org.jetbrains.kotlin.gradle.targets.js.npm.PackageJson
-import org.jetbrains.kotlin.gradle.targets.js.npm.fromSrcPackageJson
+import org.jetbrains.kotlin.gradle.targets.js.npm.*
 import org.jetbrains.kotlin.gradle.tasks.USING_JS_INCREMENTAL_COMPILATION_MESSAGE
 import org.jetbrains.kotlin.gradle.tasks.USING_JS_IR_BACKEND_MESSAGE
 import org.jetbrains.kotlin.gradle.util.*
@@ -678,5 +675,37 @@ abstract class AbstractKotlin2JsGradlePluginIT(private val irBackend: Boolean) :
         }
     }
 
+    @Test
+    fun testUpdatingPackageJsonOnDependenciesClash() = with(Project("kotlin-js-dependencies-clash")) {
+        setupWorkingDir()
+        gradleBuildScript().modify(::transformBuildScriptWithPluginsDsl)
 
+        fun assertFileVersion(
+            packageJson: PackageJson,
+            dependency: String
+        ) {
+            val version = packageJson.dependencies[dependency]!!
+            assertTrue("${packageJson.name} must have $dependency with file version, but $version found") {
+                version.isFileVersion()
+            }
+        }
+
+        build("packageJson", "rootPackageJson", "kotlinNpmInstall") {
+            assertSuccessful()
+
+            fun getPackageJson(subProject: String) =
+                fileInWorkingDir("build/js/packages/kotlin-js-dependencies-clash-$subProject")
+                    .resolve(NpmProject.PACKAGE_JSON)
+                    .let {
+                        Gson().fromJson(it.readText(), PackageJson::class.java)
+                    }
+
+            val basePackageJson = getPackageJson("base")
+            val libPackageJson = getPackageJson("lib")
+
+            val dependency = "kotlinx-coroutines-core"
+            assertFileVersion(basePackageJson, dependency)
+            assertFileVersion(libPackageJson, dependency)
+        }
+    }
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-dependencies-clash/base/build.gradle.kts

@@ -0,0 +1,18 @@
+import org.jetbrains.kotlin.gradle.plugin.KotlinJsCompilerType.BOTH as BOTH_TYPE
+
+plugins {
+    kotlin("js")
+}
+
+dependencies {
+    implementation(kotlin("stdlib-js"))
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core-js:1.3.5")
+}
+
+kotlin {
+    js {
+        useCommonJs()
+        nodejs {
+        }
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-dependencies-clash/base/src/main/kotlin/Base.kt

@@ -0,0 +1,14 @@
+/*
+ * Copyright 2010-2019 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
+
+fun best(): Int {
+    return 42
+}
+
+fun simpleBest(): Int {
+    return 73
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-dependencies-clash/build.gradle.kts

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

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-dependencies-clash/lib/build.gradle.kts

@@ -0,0 +1,17 @@
+plugins {
+    kotlin("js")
+}
+
+dependencies {
+    implementation(kotlin("stdlib-js"))
+    implementation(project(":base"))
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core-js:1.3.7")
+}
+
+kotlin {
+    target {
+        useCommonJs()
+        nodejs {
+        }
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-dependencies-clash/lib/src/main/kotlin/Lib.kt

@@ -0,0 +1,14 @@
+/*
+ * Copyright 2010-2019 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
+
+fun answer(): Int {
+    return best()
+}
+
+fun sheldon(): Int {
+    return simpleBest()
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-dependencies-clash/settings.gradle.kts

@@ -0,0 +1,11 @@
+pluginManagement {
+    repositories {
+        mavenLocal()
+        gradlePluginPortal()
+    }
+}
+
+rootProject.name = "kotlin-js-dependencies-clash"
+
+include("base")
+include("lib")

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/npm/NpmDependency.kt

@@ -142,7 +142,7 @@ internal fun onlyNameNpmDependency(
     throw IllegalArgumentException("NPM dependency '$name' doesn't have version. Please, set version explicitly.")
 }
 
-internal fun String.isFileVersion() =
+fun String.isFileVersion() =
     startsWith(FILE_VERSION_PREFIX)
 
 internal fun fileVersion(directory: File): String =