Kotlin2Js Gradle plugin tests

libraries/tools/kotlin-gradle-plugin-test/src/main/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt

@@ -11,6 +11,7 @@ import kotlin.test.assertFalse
 import kotlin.test.assertEquals
 import kotlin.test.fail
 import org.gradle.api.logging.LogLevel
+import kotlin.test.assertFalse
 
 open class BaseGradleIT(resourcesRoot: String = "src/test/resources") {
 
@@ -59,8 +60,28 @@ open class BaseGradleIT(resourcesRoot: String = "src/test/resources") {
         return this
     }
 
+    fun CompiledProject.fileInWorkingDir(path: String) = File(File(workingDir, project.projectName), path)
+
     fun CompiledProject.assertReportExists(pathToReport: String = ""): CompiledProject {
-        assertTrue(File(File(workingDir, project.projectName), pathToReport).exists(), "The report [$pathToReport] does not exist.")
+        assertTrue(fileInWorkingDir(pathToReport).exists(), "The report [$pathToReport] does not exist.")
+        return this
+    }
+
+    fun CompiledProject.assertFileExists(path: String = ""): CompiledProject {
+        assertTrue(fileInWorkingDir(path).exists(), "The file [$path] does not exist.")
+        return this
+    }
+
+    fun CompiledProject.assertNoSuchFile(path: String = ""): CompiledProject {
+        assertFalse(fileInWorkingDir(path).exists(), "The file [$path] exists.")
+        return this
+    }
+
+    fun CompiledProject.assertFileContains(path: String, vararg expected: String): CompiledProject {
+        val text = fileInWorkingDir(path).readText()
+        expected.forEach {
+            assertTrue(text.contains(it), "$path should contain '$it', actual file contents:\n$text")
+        }
         return this
     }
 

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

@@ -0,0 +1,68 @@
+package org.jetbrains.kotlin.gradle
+
+import org.junit.Test
+import org.jetbrains.kotlin.gradle.BaseGradleIT.Project
+
+
+class Kotlin2JsGradlePluginIT : BaseGradleIT() {
+    Test fun testBuildAndClean() {
+        val project = Project("kotlin2JsProject", "1.6")
+
+        project.build("build") {
+            assertSuccessful()
+            assertReportExists()
+
+            assertContains(":libraryProject:jarSources\n",
+                    ":mainProject:compileKotlin2Js\n", ":mainProject:copyKotlinJs\n",
+                    ":libraryProject:compileKotlin2Js\n", ":libraryProject:copyKotlinJs\n")
+
+            listOf("mainProject/web/js/app.js", "mainProject/web/js/lib/kotlin.js",
+                    "libraryProject/build/kotlin2js/main/app.js", "libraryProject/build/kotlin2js/main/kotlin.js",
+                    "mainProject/web/js/app.js.map"
+            ).forEach { assertFileExists(it) }
+
+
+            // TODO Should be updated to `new _.example.library.Counter` once namespaced imports from libraryFiles are implemented
+            // TODO It would be better to test these by behavior instead of implementation, for example by loading the files
+            //      into Rhino and running assertions on that. See https://github.com/abesto/kotlin/commit/120ec1bda3d95630189d4d33d0b2afb4253b5186
+            //      for the (original) discussion on this.
+            assertFileContains("libraryProject/build/kotlin2js/main/app.js", "Counter: Kotlin.createClass")
+            assertFileContains("mainProject/web/js/app.js", "var counter = new Counter(counterText);")
+        }
+
+        project.build("build") {
+            assertSuccessful()
+            assertContains(":mainProject:compileKotlin2Js UP-TO-DATE", ":libraryProject:compileTestKotlin2Js UP-TO-DATE")
+        }
+
+        project.build("clean") {
+            assertSuccessful()
+            assertReportExists()
+            assertContains(":mainProject:cleanCompileKotlin2Js\n", ":mainProject:cleanCopyKotlinJs\n")
+            assertNoSuchFile("mainProject/web/js/app.js")
+            assertNoSuchFile("mainProject/web/js/lib/kotlin.js")
+
+            // Test that we don't accidentally remove the containing directory
+            // This would fail if we used the default clean task of the copy task
+            assertFileExists("mainProject/web/js/lib")
+
+            assertNoSuchFile("main/project/web/js/app.js.map")
+            assertNoSuchFile("main/project/web/js/example/main.kt")
+        }
+
+        project.build("clean") {
+            assertSuccessful()
+            assertReportExists()
+            assertContains(":mainProject:cleanCompileKotlin2Js UP-TO-DATE", ":mainProject:cleanCopyKotlinJs UP-TO-DATE")
+        }
+    }
+
+    Test fun testNoOutputFileFails() {
+        val project = Project("kotlin2JsNoOutputFileProject", "1.6")
+        project.build("build") {
+            assertReportExists()
+            assertContains("compileKotlin2Js.kotlinOptions.outputFile must be set to a string")
+        }
+    }
+}
+

libraries/tools/kotlin-gradle-plugin/src/test/resources/testProject/kotlin2JsNoOutputFileProject/build.gradle

@@ -0,0 +1,25 @@
+buildscript {
+    repositories {
+        mavenCentral()
+        maven {
+            url "file://" + pathToKotlinPlugin
+        }
+    }
+
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:0.1-SNAPSHOT"
+    }
+}
+
+apply plugin: "kotlin2js"
+
+repositories {
+    maven {
+        url "file://" + pathToKotlinPlugin
+    }
+    mavenCentral()
+}
+
+dependencies {
+    compile "org.jetbrains.kotlin:kotlin-js-library:0.1-SNAPSHOT"
+}

libraries/tools/kotlin-gradle-plugin/src/test/resources/testProject/kotlin2JsNoOutputFileProject/src/main/kotlin/example/Dummy.kt

@@ -0,0 +1,4 @@
+package example
+
+class Dummy {}
+

libraries/tools/kotlin-gradle-plugin/src/test/resources/testProject/kotlin2JsProject/libraryProject/build.gradle

@@ -0,0 +1,35 @@
+buildscript {
+    repositories {
+        mavenCentral()
+        maven {
+            url 'file://' + pathToKotlinPlugin
+        }
+    }
+
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:0.1-SNAPSHOT"
+    }
+}
+
+apply plugin: 'kotlin2js'
+
+repositories {
+    maven {
+        url 'file://' + pathToKotlinPlugin
+    }
+    mavenCentral()
+}
+
+dependencies {
+    compile "org.jetbrains.kotlin:kotlin-js-library:0.1-SNAPSHOT"
+}
+
+task jarSources(type:Jar){
+    from sourceSets.main.allSource
+    classifier = 'source'
+}
+artifacts {
+    compile jarSources
+}
+
+compileKotlin2Js.kotlinOptions.outputFile = "${buildDir}/kotlin2js/main/app.js"

libraries/tools/kotlin-gradle-plugin/src/test/resources/testProject/kotlin2JsProject/libraryProject/src/main/kotlin/example/library/Adder.kt

@@ -0,0 +1,6 @@
+package example
+
+class Adder {
+    public fun add(x: Int, y: Int): Int = x + y
+}
+

libraries/tools/kotlin-gradle-plugin/src/test/resources/testProject/kotlin2JsProject/libraryProject/src/main/kotlin/example/library/Counter.kt

@@ -0,0 +1,15 @@
+package example.library
+
+import org.w3c.dom.Text
+import kotlin.js.dom.html.window
+
+public class Counter(val el: Text) {
+    fun step(n: Int) {
+        el.replaceWholeText("Counter: ${n}")
+        window.setTimeout({step(n+1)}, 1000)
+    }
+
+    fun start() {
+        step(0)
+    }
+}

libraries/tools/kotlin-gradle-plugin/src/test/resources/testProject/kotlin2JsProject/mainProject/build.gradle

@@ -0,0 +1,33 @@
+buildscript {
+    repositories {
+        mavenCentral()
+        maven {
+            url "file://" + pathToKotlinPlugin
+        }
+    }
+
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:0.1-SNAPSHOT"
+    }
+}
+
+apply plugin: "kotlin2js"
+
+repositories {
+    maven {
+        url "file://" + pathToKotlinPlugin
+    }
+    mavenCentral()
+}
+
+dependencies {
+    compile project(":libraryProject"),
+            "org.jetbrains.kotlin:kotlin-js-library:0.1-SNAPSHOT"
+}
+
+compileKotlin2Js.kotlinOptions.sourceMap = true
+compileKotlin2Js.kotlinOptions.outputFile = "${projectDir}/web/js/app.js"
+compileKotlin2Js.kotlinOptions.suppressWarnings = true
+compileKotlin2Js.kotlinOptions.verbose = true
+
+copyKotlinJs.into "${projectDir}/web/js/lib"

libraries/tools/kotlin-gradle-plugin/src/test/resources/testProject/kotlin2JsProject/mainProject/src/main/kotlin/example/main.kt

@@ -0,0 +1,19 @@
+package example
+
+import kotlin.js.dom.html.document
+import example.library.Counter
+
+
+fun main(args: Array<String>) {
+    val el = document.createElement("div")
+    el.appendChild(document.createTextNode("Hello!"))
+    document.body.appendChild(el)
+
+    val counterDiv = document.createElement("div")
+    val counterText = document.createTextNode("Counter!")
+    counterDiv.appendChild(counterText)
+    document.body.appendChild(counterDiv)
+
+    val counter = Counter(counterText)
+    counter.start()
+}

libraries/tools/kotlin-gradle-plugin/src/test/resources/testProject/kotlin2JsProject/settings.gradle

@@ -0,0 +1 @@
+include 'mainProject', 'libraryProject'

libraries/tools/kotlin-gradle-plugin/src/test/resources/testProject/kotlin2JsProject/web/index.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+    <script src="js/lib/kotlin.js"></script>
+</head>
+<body>
+<script src="js/app.js"></script>
+</body>
+</html>