Move tests to separate Gradle module.

ros2rag.base/build.gradle

@@ -157,5 +157,3 @@ jastadd {
 }
 
 generateAst.dependsOn relast
-
-apply from: 'test.build.gradle'

ros2rag.base/src/main/java/org/jastadd/ros2rag/compiler/Compiler.java

@@ -71,12 +71,17 @@ public class Compiler {
 
     printMessage("Writing output files");
     // copy MqttUpdater into outputDir
+    final String mqttUpdaterFileName = "MqttUpdater.jadd";
     try {
-      Files.copy(Paths.get("src", "main", "resources", "MqttUpdater.jadd"),
-          Paths.get(outputDir, "MqttUpdater.jadd"),
+      InputStream inputStream = Compiler.class.getClassLoader().getResourceAsStream(mqttUpdaterFileName);
+      if (inputStream == null) {
+        throw new CompilerException("Could not open " + mqttUpdaterFileName);
+      }
+      Files.copy(inputStream,
+          Paths.get(outputDir, mqttUpdaterFileName),
           StandardCopyOption.REPLACE_EXISTING);
     } catch (IOException e) {
-      throw new CompilerException("Could not copy MqttUpdater.java", e);
+      throw new CompilerException("Could not copy " + mqttUpdaterFileName, e);
     }
     writeToFile(outputDir + "/Grammar.relast", ros2Rag.getProgram().generateAbstractGrammar());
     writeToFile(outputDir + "/ROS2RAG.jadd", ros2Rag.generateAspect(optionRootNode.getValue()));

ros2rag.base/test.build.gradle → ros2rag.tests/build.gradle

 import org.jastadd.relast.plugin.RelastPlugin
 import org.jastadd.relast.plugin.RelastTest
+apply plugin: 'jastadd'
+apply plugin: 'application'
 apply plugin: RelastPlugin
 
-relastTest {
-    compilerLocation = '../libs/relast.jar'
+sourceCompatibility = 1.8
+
+repositories {
+    jcenter()
+}
+
+buildscript {
+    repositories.jcenter()
+    dependencies {
+        classpath 'org.jastadd:jastaddgradle:1.13.3'
+    }
 }
 
 dependencies {
+    runtime 'org.jastadd:jastadd:2.3.4'
+    implementation project(':ros2rag.base')
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.4.0'
     testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.4.0'
     testImplementation 'org.assertj:assertj-core:3.12.1'
@@ -15,6 +28,16 @@ dependencies {
     testImplementation 'com.google.protobuf:protobuf-java:3.0.0'
 }
 
+test {
+    useJUnitPlatform()
+
+    maxHeapSize = '1G'
+}
+
+relastTest {
+    compilerLocation = '../libs/relast.jar'
+}
+
 sourceSets {
     test {
         java.srcDir "src/test/java-gen"
@@ -22,7 +45,6 @@ sourceSets {
 }
 
 task preprocessExampleTest(type: JavaExec, group: 'verification') {
-
     doFirst {
         delete 'src/test/02-after-ros2rag/example/Grammar.relast',
                 'src/test/02-after-ros2rag/example/MqttUpdater.java',

settings.gradle

 rootProject.name = 'ros2rag'
 
+include 'relast.preprocessor'
 include 'ros2rag.base'
+include 'ros2rag.tests'
 include 'ros2rag.example'
 include 'ros2rag.senderstub'
 include 'ros2rag.receiverstub'
-include 'relast.preprocessor'