Updating to github actions (#12)

* Updating to github actions
 - testing the PR build
 - testing and releasing an exp version of the jar via Java 15
 - making a stable release
Also updated the plugin version nd the min GoCD version to 20.9.0
* Update mockito nd jupiter dependencies to support java 15
* Fix the test for validation
 - Java has fixed the NPE exception to provide the exact line and variable which is null
   Earlier, e.getMessage() would be null but now it specified which variable nd which method threw it.

.github/workflows/pr_workflow.yml

@@ -0,0 +1,18 @@
+# This workflow will build a Java project with Gradle
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
+
+name: Testing For PRs
+
+on: [ pull_request ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 15
+      - name: Build with Gradle
+        run: ./gradlew assemble check

.github/workflows/release.yml

@@ -0,0 +1,33 @@
+# This workflow will build a Java project with Gradle
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
+
+name: Create Stable Release
+
+# Controls when the action will run. Workflow runs when manually triggered using the UI
+# or API.
+on:
+  workflow_dispatch:
+    # Inputs the workflow accepts.
+    inputs:
+      prerelease:
+        description: 'The release should be an experimental release'
+        default: 'NO'
+        required: true
+
+jobs:
+  build_and_release:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_USER:  "gocd"
+      GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+      PRERELEASE:   "${{ github.event.inputs.prerelease }}"
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 15
+      - name: Release
+        run: ./gradlew verifyExpRelease githubRelease

.github/workflows/test_and_build.yml

@@ -0,0 +1,36 @@
+# This workflow will build a Java project with Gradle
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
+
+name: Test and Build
+
+on:
+  push:
+    branches: [ master ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 15
+      - name: Test with Gradle
+        run: ./gradlew assemble check
+  previewGithubRelease:
+    needs: test
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_USER:  "gocd"
+      GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 15
+      - name: Test with Gradle
+        run: ./gradlew githubRelease

build.gradle

@@ -26,16 +26,16 @@ project.ext.versions = [
   joda        : '2.9.4',
   azure       : '1.17.0',
   freemarker  : '2.3.28',
-  junitJupiter: '5.3.2',
+  junitJupiter: '5.7.0',
   hamcrestLib : '1.3',
-  mockito     : '3.0.0',
+  mockito     : '3.6.0',
   jsonAssert  : '1.5.0'
 ]
 
 gocdPlugin {
   id = 'com.thoughtworks.gocd.elastic-agent.azure'
-  pluginVersion = '1.0.0'
-  goCdVersion = '20.5.0'
+  pluginVersion = '1.1.0'
+  goCdVersion = '20.9.0'
   name = 'GoCD Elastic Agent Plugin for Azure'
   description = 'GoCD Elastic Agent Plugin for Azure allows efficient usage of Azure instances'
   vendorName = 'ThoughtWorks, Inc.'

src/test/java/com/thoughtworks/gocd/elasticagent/azure/executors/MemoryMetadataTest.java

@@ -21,8 +21,7 @@
 import java.util.Map;
 
 import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.hasEntry;
-import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.*;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 class MemoryMetadataTest {
@@ -40,6 +39,6 @@ void shouldValidateMemoryBytes() {
   void shouldValidateMemoryBytesWhenRequireField() {
     Map<String, String> validate = new MemoryMetadata("Disk", true).validate(null);
     assertThat(validate.size(), is(1));
-    assertThat(validate, hasEntry("Disk", "Disk must not be blank."));
+    assertThat(validate.get("Disk"), containsString("Disk must not be blank."));
   }
 }