test: add junit+robolectric to buildfiles and stub test file

OpenPGP-Keychain/build.gradle

@@ -1,5 +1,12 @@
 apply plugin: 'android'
 
+sourceSets {
+    testLocal {
+        java.srcDir file('src/test/java')
+        resources.srcDir file('src/test/resources')
+    }
+}
+
 dependencies {
     compile 'com.android.support:support-v4:19.0.1'
     compile 'com.android.support:appcompat-v7:19.0.1'
@@ -15,6 +22,25 @@ dependencies {
     compile project(':libraries:spongycastle:pkix')
     compile project(':libraries:spongycastle:prov')
     compile project(':libraries:Android-AppMsg:library')
+
+    // Dependencies for the `testLocal` task, make sure to list all your global dependencies here as well
+    testLocalCompile 'junit:junit:4.11'
+    testLocalCompile 'org.robolectric:robolectric:2.1.+'
+    testLocalCompile 'com.google.android:android:4.1.1.4'
+    testLocalCompile 'com.android.support:support-v4:19.0.1'
+    testLocalCompile 'com.android.support:appcompat-v7:19.0.1'
+    testLocalCompile project(':OpenPGP-Keychain-API:libraries:openpgp-api-library')
+    testLocalCompile project(':OpenPGP-Keychain-API:libraries:openkeychain-api-library')
+    testLocalCompile project(':libraries:HtmlTextView')
+    testLocalCompile project(':libraries:StickyListHeaders:library')
+    testLocalCompile project(':libraries:AndroidBootstrap')
+    testLocalCompile project(':libraries:zxing')
+    testLocalCompile project(':libraries:zxing-android-integration')
+    testLocalCompile project(':libraries:spongycastle:core')
+    testLocalCompile project(':libraries:spongycastle:pg')
+    testLocalCompile project(':libraries:spongycastle:pkix')
+    testLocalCompile project(':libraries:spongycastle:prov')
+    testLocalCompile project(':libraries:Android-AppMsg:library')
 }
 
 android {
@@ -61,3 +87,19 @@ android {
         htmlOutput file("lint-report.html")
     }
 }
+
+task localTest(type: Test, dependsOn: assemble) {
+    testClassesDir = sourceSets.testLocal.output.classesDir
+
+    android.sourceSets.main.java.srcDirs.each { dir ->
+        def buildDir = dir.getAbsolutePath().split('/')
+        buildDir =  (buildDir[0..(buildDir.length - 4)] + ['build', 'classes', 'debug']).join('/')
+
+        sourceSets.testLocal.compileClasspath += files(buildDir)
+        sourceSets.testLocal.runtimeClasspath += files(buildDir)
+    }
+
+    classpath = sourceSets.testLocal.runtimeClasspath
+}
+
+check.dependsOn localTest

OpenPGP-Keychain/src/main/res/layout/key_server_preference.xml

@@ -6,7 +6,7 @@
     android:orientation="vertical" >
 
     <LinearLayout
-        android:id="@+android:id/text_layout"
+        android:id="@+id/text_layout"
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:gravity="center_vertical"

OpenPGP-Keychain/src/test/java/org/sufficientlysecure/keychain/PgpKeyOperationTest.java

@@ -0,0 +1,46 @@
+package org.sufficientlysecure.keychain;
+
+import org.junit.Before;
+import org.junit.After;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.Robolectric;
+
+import org.sufficientlysecure.keychain.pgp.*;
+import org.spongycastle.openpgp.*;
+
+@RunWith(RobolectricGradleTestRunner.class)
+public class PgpKeyOperationTest {
+
+    PGPSecretKey key;
+
+    @Before
+    public void setUp() throws Exception {
+
+        /* Input */
+        int algorithm = Id.choice.algorithm.dsa;
+        String passphrase = "swag";
+        int keysize = 2048;
+        boolean masterKey = true;
+
+        /* Operation */
+        PgpKeyOperation keyOperations = new PgpKeyOperation(null);
+        key = keyOperations.createKey(algorithm, keysize, passphrase, masterKey);
+
+        System.err.println("initialized, test key: " + PgpKeyHelper.convertKeyIdToHex(key.getKeyID()));
+    }
+
+    @After
+    public void tearDown() {
+    }
+
+    @Test
+    public void createTest() {
+    }
+
+    @Test
+    public void certifyKey() {
+        System.err.println("swag");
+    }
+
+}

OpenPGP-Keychain/src/test/java/org/sufficientlysecure/keychain/RobolectricGradleTestRunner.java

@@ -0,0 +1,23 @@
+package org.sufficientlysecure.keychain;
+
+import org.junit.runners.model.InitializationError;
+import org.robolectric.AndroidManifest;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+import org.robolectric.res.Fs;
+import org.robolectric.res.FsFile;
+
+import org.sufficientlysecure.keychain.KeychainApplication;
+
+public class RobolectricGradleTestRunner extends RobolectricTestRunner {
+    public RobolectricGradleTestRunner(Class<?> testClass) throws InitializationError {
+        super(testClass);
+    }
+
+    @Override protected AndroidManifest getAppManifest(Config config) {
+        String myAppPath = KeychainApplication.class.getProtectionDomain().getCodeSource().getLocation().getPath();
+        String manifestPath = myAppPath + "../../../src/main/AndroidManifest.xml";
+        return createAppManifest(Fs.fileFromPath(manifestPath));
+    }
+}
+