Add excludes to JunitJacoco extension (#37)

Author: vanniktech

src/main/groovy/com/vanniktech/android/junit/jacoco/Generation.groovy

@@ -42,7 +42,7 @@ class Generation implements Plugin<Project> {
         return false
     }
 
-    private static void addJacocoJava(final Project subProject, final extension) {
+    private static void addJacocoJava(final Project subProject, final JunitJacocoExtension extension) {
         subProject.plugins.apply('jacoco')
 
         subProject.jacoco {
@@ -62,7 +62,7 @@ class Generation implements Plugin<Project> {
 
             classDirectories = subProject.fileTree(
                     dir: 'build/classes/main/',
-                    excludes: getExcludes()
+                    excludes: getExcludes(extension)
             )
 
             final def coverageSourceDirs = [
@@ -77,7 +77,7 @@ class Generation implements Plugin<Project> {
         subProject.check.dependsOn 'jacocoTestReport'
     }
 
-    private static void addJacocoAndroid(final Project subProject, final extension) {
+    private static void addJacocoAndroid(final Project subProject, final JunitJacocoExtension extension) {
         subProject.plugins.apply('jacoco')
 
         subProject.jacoco {
@@ -120,7 +120,7 @@ class Generation implements Plugin<Project> {
 
                     classDirectories = subProject.fileTree(
                             dir: "${subProject.buildDir}/intermediates/classes/${sourcePath}",
-                            excludes: getExcludes()
+                            excludes: getExcludes(extension)
                     )
 
                     final def coverageSourceDirs = [
@@ -142,8 +142,8 @@ class Generation implements Plugin<Project> {
         }
     }
 
-    private static ArrayList<String> getExcludes() {
-        ['**/R.class',
+    static List<String> getExcludes(final JunitJacocoExtension extension) {
+        extension.excludes == null ? ['**/R.class',
          '**/R$*.class',
          '**/*$$*',
          '**/*$ViewInjector*.*',
@@ -154,7 +154,7 @@ class Generation implements Plugin<Project> {
          '**/*Dagger*.*', // Dagger auto-generated code.
          '**/*MembersInjector*.*', // Dagger auto-generated code.
          '**/*_Provide*Factory*.*' // Dagger auto-generated code.
-        ]
+        ] : extension.excludes
     }
 
     protected static boolean isAndroidProject(final Project project) {

src/main/groovy/com/vanniktech/android/junit/jacoco/JunitJacocoExtension.groovy

@@ -16,4 +16,10 @@ class JunitJacocoExtension {
      * @since 0.3.0
      */
     String[] ignoreProjects = []
+
+    /**
+     * Patterns of files that should be ignored
+     * @since 0.5.0
+     */
+    List<String> excludes = null
 }

src/test/groovy/com/vanniktech/android/junit/jacoco/GenerationTest.groovy

@@ -267,4 +267,32 @@ public class GenerationTest {
 
         return false
     }
+
+    @Test
+    public void getExcludesDefault() {
+        final def excludes = Generation.getExcludes(new JunitJacocoExtension())
+
+        assert excludes.contains('**/R.class')
+        assert excludes.contains('**/R$*.class')
+        assert excludes.contains('**/*$$*')
+        assert excludes.contains('**/*$ViewInjector*.*')
+        assert excludes.contains('**/*$ViewBinder*.*')
+        assert excludes.contains('**/BuildConfig.*')
+        assert excludes.contains('**/Manifest*.*')
+        assert excludes.contains('**/*$Lambda$*.*')
+        assert excludes.contains('**/*Dagger*.*')
+        assert excludes.contains('**/*MembersInjector*.*')
+        assert excludes.contains('**/*_Provide*Factory*.*')
+    }
+
+    @Test
+    public void getExcludesCustom() {
+        final def extension = new JunitJacocoExtension()
+        extension.excludes = new ArrayList<>()
+        extension.excludes.add("**/*.java")
+
+        final def excludes = Generation.getExcludes(extension)
+
+        assert excludes == extension.excludes
+    }
 }

src/test/groovy/com/vanniktech/android/junit/jacoco/JunitJacocoExtensionTest.groovy

@@ -9,5 +9,6 @@ public class JunitJacocoExtensionTest {
 
         assert extension.jacocoVersion == '0.7.2.201409121644'
         assert extension.ignoreProjects.size() == 0
+        assert extension.excludes == null
     }
-}
+}