new egg for JUnit5 and preview/incubating

Author: codetojoy

.github/workflows/gradle_test.yml

@@ -0,0 +1,47 @@
+
+name: Java test with Gradle
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+permissions:
+  contents: read
+
+jobs:
+  test-groovy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: get code
+        uses: actions/checkout@v3
+
+      - name: Set up JDK 19
+        uses: actions/setup-java@v3
+        with:
+          java-version: '19'
+          distribution: 'adopt'
+
+      - name: run build script
+        run: ./gradle-groovy-test.sh 
+        working-directory: egg__12_sc_junit
+
+  test-kotlin:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: get code
+        uses: actions/checkout@v3
+
+      - name: Set up JDK 19
+        uses: actions/setup-java@v3
+        with:
+          java-version: '19'
+          distribution: 'adopt'
+
+      - name: run build script
+        run: ./gradle-kotlin-test.sh 
+        working-directory: egg__12_sc_junit

build.gradle

@@ -4,12 +4,37 @@ subprojects { def project ->
 apply plugin: 'java'
 apply plugin: 'application'
 
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testImplementation(platform('org.junit:junit-bom:5.9.1'))
+    testImplementation('org.junit.jupiter:junit-jupiter')
+}
+
+
 compileJava {
     options.compilerArgs.addAll(['--release', '19']) 
     options.compilerArgs.addAll(['--enable-preview'])
     options.compilerArgs.addAll(['--add-modules', 'jdk.incubator.concurrent'])
 }
 
+compileTestJava {
+    options.compilerArgs.addAll(['--release', '19']) 
+    options.compilerArgs.addAll(['--enable-preview'])
+    options.compilerArgs.addAll(['--add-modules', 'jdk.incubator.concurrent'])
+}
+
+test {
+    useJUnitPlatform()
+    jvmArgs('--enable-preview','--add-modules', 'jdk.incubator.concurrent')
+
+    testLogging {
+        events "passed", "skipped", "failed"
+    }
+}
+
 application {
     applicationDefaultJvmArgs = ['--enable-preview', 
                                  '--add-modules', 'jdk.incubator.concurrent']

egg__12_sc_junit/.sdkmanrc

@@ -0,0 +1,3 @@
+# Enable auto-env through the sdkman_auto_env config
+# Add key=value pairs of SDKs to use below
+java=19-open

egg__12_sc_junit/README.md

@@ -0,0 +1,25 @@
+
+Summary:
+---------
+
+* address how to run JUnit5 with preview/incubating features
+* Gradle Groovy & Gradle Kotlin
+
+Build Notes:
+------------
+
+* tested with [this jdk](../JDK.version.md)
+* tested with [this version](../Gradle.version.md) of Gradle 
+* tested with [this version](../Maven.version.md) of Maven 
+
+To Run (using Gradle):
+---------------------
+
+* with Groovy: `./gradle-groovy-test.sh`
+* with Kotlin: `./gradle-kotlin-test.sh`
+
+useful commands:
+
+* `sdk env`
+    - SDKMan! will set JDK to value in `.sdkmanrc`
+

egg__12_sc_junit/build.gradle

@@ -0,0 +1,19 @@
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testImplementation(platform('org.junit:junit-bom:5.9.1'))
+    testImplementation('org.junit.jupiter:junit-jupiter')
+}
+
+
+test {
+    useJUnitPlatform()
+    jvmArgs('--enable-preview','--add-modules', 'jdk.incubator.concurrent')
+
+    testLogging {
+        events "passed", "skipped", "failed"
+    }
+}

egg__12_sc_junit/build.gradle.kts

@@ -0,0 +1,32 @@
+
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+    kotlin("jvm") version "1.5.31"
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testImplementation(platform("org.junit:junit-bom:5.9.1"))
+    testImplementation("org.junit.jupiter:junit-jupiter")
+}
+
+tasks.withType<JavaCompile> {
+    options.compilerArgs.addAll(listOfNotNull(
+        "--enable-preview",
+        "--add-modules", "jdk.incubator.concurrent"
+    ))
+}
+
+tasks.withType<Test>().configureEach {
+    useJUnitPlatform()
+
+    jvmArgs("--enable-preview", "--add-modules", "jdk.incubator.concurrent")
+
+    testLogging {
+        events("passed", "skipped", "failed")
+    }
+}

egg__12_sc_junit/gradle-groovy-test.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+set -e
+
+../gradlew --build-file build.gradle clean test
+

egg__12_sc_junit/gradle-kotlin-test.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -e
+
+# nasty hack for now
+# TODO: tell Gradle that we don't want to use ../settings.gradle
+
+mv ../settings.gradle ../tmp.settings.gradle
+
+../gradlew \
+--build-file build.gradle.kts \
+clean test
+
+mv ../tmp.settings.gradle ../settings.gradle
+

egg__12_sc_junit/src/test/java/net/codetojoy/TestCanary.java

@@ -0,0 +1,16 @@
+
+package net.codetojoy;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.jupiter.api.Test;
+
+public class TestCanary {
+    @Test
+    void simpleAdd() {
+        // test 
+        var x = 2 + 2;
+
+        assertEquals(4, x);
+    }
+}

egg__12_sc_junit/src/test/java/net/codetojoy/TestScope.java

@@ -0,0 +1,21 @@
+
+package net.codetojoy;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.jupiter.api.Test;
+
+import jdk.incubator.concurrent.StructuredTaskScope;
+
+// we want to ensure this compiles, runs
+class CustomStructuredTaskScope<T> extends StructuredTaskScope<T> {}
+
+public class TestScope {
+    @Test
+    void canaryTestForScope() {
+        // test 
+        var x = 4 + 4;
+
+        assertEquals(8, x);
+    }
+}