re-commited arturo's changes in one single clean commit, again stripped leftover mess - 'update test app, update hgignore' also, this commit updates adapter's buildToolsVersion to 25.0.0.

.hgignore

@@ -51,7 +51,16 @@ androidTests/build
 androidTests/.idea
 androidTests/androidTests.iml
 androidTests/app/app.iml
-
+.gradle
+android/.externalNativeBuild
+android/android.iml
+android/gradle/wrapper/gradle-wrapper.properties
+android/gradlew
+android/gradlew.bat
+androidTests/gradle/wrapper/gradle-wrapper.properties
+androidTests/gradlew
+androidTests/gradlew.bat
+src/org.tar.gz
 
 syntax: regexp
 android/external/[^.]*

android/build.gradle

@@ -18,7 +18,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.2'
+        classpath 'com.android.tools.build:gradle:2.2.0'
     }
 }
 
@@ -32,7 +32,7 @@ apply plugin: 'com.android.library'
 
 android {
     compileSdkVersion 21
-    buildToolsVersion '23.0.3'
+    buildToolsVersion '25.0.0'
 
     defaultConfig {
         minSdkVersion 15

androidTests/app/build.gradle

@@ -2,11 +2,11 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 23
-    buildToolsVersion "23.0.0"
+    buildToolsVersion '25.0.0'
 
     defaultConfig {
         applicationId "pep.android.k9"
-        minSdkVersion 15
+        minSdkVersion 19
         targetSdkVersion 23
         versionCode 1
         versionName "1.0"
@@ -28,5 +28,8 @@ dependencies {
     compile fileTree(include: ['*.jar'], dir: 'libs')
     compile 'com.android.support:appcompat-v7:23.0.0'
     compile project(':pEpJNIAdapter')
+    testCompile 'junit:junit:4.12'
     compile 'com.jakewharton:butterknife:7.0.1'
+    compile 'com.karumi:dexter:2.3.1'
+    compile group: 'net.lingala.zip4j', name: 'zip4j', version: '1.3.1'
 }

androidTests/app/src/androidTest/java/com/pep/k9/PEpTest.java

@@ -0,0 +1,10 @@
+package com.pep.k9;
+
+import static org.junit.Assert.*;
+
+/**
+ * Created by arturo on 15/11/16.
+ */
+public class PEpTest {
+
+}

androidTests/app/src/main/AndroidManifest.xml

@@ -1,23 +1,27 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.pep.k9" >
+    package="com.pep.k9">
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme" >
+        android:theme="@style/AppTheme">
         <activity
             android:name=".MainActivity"
-            android:label="@string/app_name" >
+            android:label="@string/app_name">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".UnitActivity"></activity>
     </application>
 
-</manifest>
+</manifest>

androidTests/app/src/main/java/com/pep/k9/PEpUnitaryStuff.java

@@ -0,0 +1,46 @@
+package com.pep.k9;
+
+import org.pEp.jniadapter.Engine;
+import org.pEp.jniadapter.Identity;
+import org.pEp.jniadapter.Message;
+
+import java.util.Vector;
+
+public class PEpUnitaryStuff {
+    public static void main (String args[]) {
+        try {
+            shouldDoSomeStuff();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static void shouldDoSomeStuff() throws Exception {
+        Engine engine;
+        engine = new Engine();
+
+        Message msg = new Message();
+        msg.setFrom(new Identity());
+
+        Vector<Identity> to = new Vector<>();
+        to.add(new Identity());
+        msg.setTo(to);
+
+        msg.setShortmsg("hello, world");
+        String message = "this is a test";
+        msg.setLongmsg(message);
+
+        msg.setDir(Message.Direction.Outgoing);
+
+        Vector<Identity> cc = new Vector<>();
+        cc.add(new Identity());
+        msg.setCc(cc);
+
+        Message encriptedMessage = engine.encrypt_message(msg, null);
+        Engine.decrypt_message_Return decrypt_message_return = engine.decrypt_message(encriptedMessage);
+
+        if (!decrypt_message_return.dst.getLongmsg().equals(message)) {
+            throw new RuntimeException("FAILED");
+        }
+    }
+}

androidTests/app/src/main/java/com/pep/k9/UnitActivity.java

@@ -0,0 +1,280 @@
+package com.pep.k9;
+
+import android.content.res.AssetManager;
+import android.support.annotation.NonNull;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+
+import org.pEp.jniadapter.Blob;
+import org.pEp.jniadapter.Engine;
+import org.pEp.jniadapter.Identity;
+import org.pEp.jniadapter.Message;
+import org.pEp.jniadapter.Pair;
+import org.pEp.jniadapter.Rating;
+import org.pEp.jniadapter.pEpException;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Vector;
+
+public class UnitActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_unit);
+
+        try {
+            messageAfterDecriptionShouldBeTheSame();
+            messageAfterDecriptionWithoutKeyShouldKeepBreaks();
+            messageAfterDecriptionShouldKeepBreaks();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void messageAfterDecriptionWithoutKeyShouldKeepBreaks() throws Exception {
+        Engine engine;
+        engine = new Engine();
+
+        Identity alice = loadAliceFromEngine(engine);
+
+        Identity bob = loadDummyBobFromEngine(engine);
+
+        // message
+        Message msg = new Message();
+        msg.setFrom(alice);
+
+        Vector<Identity> to = new Vector<>();
+        to.add(bob);
+        msg.setTo(to);
+
+        msg.setShortmsg("hello, world");
+        msg.setLongmsg("thisis\nastest");
+
+        msg.setDir(Message.Direction.Outgoing);
+
+        Vector<Identity> cc = new Vector<>();
+        cc.add(alice);
+        msg.setCc(cc);
+
+        ArrayList<Pair<String, String>> pairs = new ArrayList<>();
+        pairs.add(new Pair<>("Received", "in time"));
+        pairs.add(new Pair<>("X-Foobaz", "of course"));
+        msg.setOptFields(pairs);
+
+        Message encriptedMessage = null;
+        encriptedMessage = encryptMessageOnEngine(engine, msg);
+
+        Vector<Blob> attachments = encriptedMessage.getAttachments();
+
+        Engine.decrypt_message_Return result = null;
+        result = decryptMessageOnEngine(engine, encriptedMessage);
+
+        engine.close();
+
+        if (!result.dst.getLongmsg().equals(msg.getLongmsg())) {
+            throw new RuntimeException("FAILED: " +result.dst.getLongmsg()+" not equals to "+msg.getLongmsg());
+        }
+    }
+
+    public void messageAfterDecriptionShouldKeepBreaks() throws Exception {
+        Engine engine;
+        engine = new Engine();
+
+        Identity alice = loadAliceFromEngine(engine);
+
+        Identity bob = loadBobFromEngine(engine);
+
+        // message
+        Message msg = new Message();
+        msg.setFrom(alice);
+
+        Vector<Identity> to = new Vector<>();
+        to.add(bob);
+        msg.setTo(to);
+
+        msg.setShortmsg("hello, world");
+        msg.setLongmsg("thisis\nastest");
+
+        msg.setDir(Message.Direction.Outgoing);
+
+        Vector<Identity> cc = new Vector<>();
+        cc.add(alice);
+        msg.setCc(cc);
+
+        ArrayList<Pair<String, String>> pairs = new ArrayList<>();
+        pairs.add(new Pair<>("Received", "in time"));
+        pairs.add(new Pair<>("X-Foobaz", "of course"));
+        msg.setOptFields(pairs);
+
+        Message encriptedMessage = null;
+        encriptedMessage = encryptMessageOnEngine(engine, msg);
+
+        Vector<Blob> attachments = encriptedMessage.getAttachments();
+
+        Engine.decrypt_message_Return result = null;
+        result = decryptMessageOnEngine(engine, encriptedMessage);
+
+        engine.close();
+
+        if (!result.dst.getLongmsg().equals(msg.getLongmsg())) {
+            throw new RuntimeException("FAILED: " +result.dst.getLongmsg()+" not equals to "+msg.getLongmsg());
+        }
+    }
+
+    public void messageAfterDecriptionShouldBeTheSame() throws Exception {
+        Engine engine;
+        engine = new Engine();
+
+        Identity alice = loadAliceFromEngine(engine);
+
+        Identity bob = loadBobFromEngine(engine);
+
+        // message
+        Message msg = setupMessage(alice, bob);
+
+        ArrayList<Pair<String, String>> pairs = new ArrayList<>();
+        pairs.add(new Pair<>("Received", "in time"));
+        pairs.add(new Pair<>("X-Foobaz", "of course"));
+        msg.setOptFields(pairs);
+
+        Message encriptedMessage = null;
+        encriptedMessage = encryptMessageOnEngine(engine, msg);
+
+        Vector<Blob> attachments = encriptedMessage.getAttachments();
+
+        Engine.decrypt_message_Return result = null;
+        result = decryptMessageOnEngine(engine, encriptedMessage);
+
+        engine.close();
+
+        if (!result.dst.getLongmsg().equals(msg.getLongmsg())) {
+            throw new RuntimeException("FAILED: " +result.dst.getLongmsg()+" not equals to "+msg.getLongmsg());
+        }
+    }
+
+    private Message setupMessage(Identity alice, Identity bob) {
+        Message msg = new Message();
+        msg.setFrom(alice);
+
+        Vector<Identity> to = new Vector<>();
+        to.add(bob);
+        msg.setTo(to);
+
+        msg.setShortmsg("hello, world");
+        msg.setLongmsg("this is a test");
+
+        msg.setDir(Message.Direction.Outgoing);
+
+        Vector<Identity> cc = new Vector<>();
+        cc.add(alice);
+        msg.setCc(cc);
+
+        return msg;
+    }
+
+    private Engine.decrypt_message_Return decryptMessageOnEngine(Engine engine, Message encriptedMessage) throws pEpException {
+        long lastTime = System.currentTimeMillis();
+        Engine.decrypt_message_Return decrypt_message_return = engine.decrypt_message(encriptedMessage);
+        return decrypt_message_return;
+    }
+
+    private Message encryptMessageOnEngine(Engine engine, Message msg) throws pEpException {
+        long lastTime = System.currentTimeMillis();
+        Message message = engine.encrypt_message(msg, null);
+        return message;
+    }
+
+    private Identity loadBobFromEngine(Engine engine) throws IOException {
+        //
+        // Other peers :
+        // pEp Test Bob (test key, don't use) <pep.test.bob@pep-project.org> 
+        //         C9C2EE39
+        // 59BFF488C9C2EE39
+        importKeyFromEngine(engine, "0xC9C2EE39.asc");
+
+        Identity bob = new Identity();
+        bob.username = "bob Test";
+        bob.address = "pep.test.bob@pep-project.org";
+        bob.user_id = "112";
+        bob.fpr = "BFCDB7F301DEEEBBF947F29659BFF488C9C2EE39";
+
+        updateIdentityOnEngine(engine, bob);
+        return bob;
+    }
+
+    private Identity loadDummyBobFromEngine(Engine engine) throws IOException {
+        //
+        // Other peers :
+        // pEp Test Bob (test key, don't use) <pep.test.bob@pep-project.org> 
+        //         C9C2EE39
+        // 59BFF488C9C2EE39
+
+        Identity bob = new Identity();
+        bob.username = "bob Test";
+        bob.address = "pep.test.bob@pep-project.org";
+        bob.user_id = "112";
+
+        updateIdentityOnEngine(engine, bob);
+        return bob;
+    }
+
+    private void updateIdentityOnEngine(Engine engine, Identity identity) {
+        long lastTime = System.currentTimeMillis();
+        engine.updateIdentity(identity);
+    }
+
+    @NonNull
+    private Identity loadAliceFromEngine(Engine engine) throws IOException {
+        // Our test user :
+        // pEp Test Alice (test key don't use) <pep.test.alice@pep-project.org>
+        //         6FF00E97
+        // A9411D176FF00E97
+        importKeyFromEngine(engine, "6FF00E97_sec.asc");
+
+        Identity alice = new Identity();
+        alice.username = "Alice Test";
+        alice.address = "pep.test.alice@pep-project.org";
+        alice.user_id = "pEp_own_userId";
+        alice.me = true;
+        alice.fpr = "4ABE3AAF59AC32CFE4F86500A9411D176FF00E97";
+
+        long lastTime = System.currentTimeMillis();
+        myselfInEngine(engine, alice);
+
+        return alice;
+    }
+
+    private void importKeyFromEngine(Engine engine, String filename) throws IOException {
+        long lastTime = System.currentTimeMillis();
+        engine.importKey(LoadAssetAsString(filename));
+    }
+
+    private String LoadAssetAsString(String fname) throws IOException {
+        // byte buffer into a string
+        return new String(LoadAssetAsBuffer(fname));
+    }
+
+    private byte[] LoadAssetAsBuffer(String fname) throws IOException {
+        AssetManager assetManager = getAssets();
+        InputStream input;
+
+        input = assetManager.open(fname);
+
+        int size = input.available();
+        byte[] buffer = new byte[size];
+        input.read(buffer);
+        input.close();
+
+        // byte buffer
+        return buffer;
+
+    }
+
+    private Identity myselfInEngine(Engine engine, Identity identity) {
+        Identity myself = engine.myself(identity);
+        return myself;
+    }
+}

androidTests/app/src/main/res/layout/activity_main.xml

@@ -1,103 +1,396 @@
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
-    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
-    android:paddingRight="@dimen/activity_horizontal_margin"
-    android:paddingTop="@dimen/activity_vertical_margin"
-    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
-
-    <!--//testPEpTypes();-->
-    <!--//testPEpAliceBobJohn();-->
-    <!--//testKeyserverLookup();-->
-    <!--testKeyGen();-->
-    <LinearLayout
-            android:orientation="vertical"
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+    <LinearLayout android:id="@+id/content"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        tools:context=".MainActivity">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <TextView
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="KeyGen"
+                android:textAppearance="?android:attr/textAppearanceMedium" />
+
+            <Button
+                android:id="@+id/bRunGenKey"
+                style="?android:attr/buttonStyleSmall"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="Run" />
+        </LinearLayout>
+
+        <LinearLayout
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             android:layout_alignParentLeft="true"
-            android:layout_alignParentStart="true">
+            android:layout_alignParentStart="true"
+            android:orientation="vertical">
 
-        <LinearLayout
-                android:orientation="horizontal"
+            <LinearLayout
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content">
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
 
-            <TextView
+                <TextView
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
-                    android:textAppearance="?android:attr/textAppearanceMedium"
+                    android:layout_weight="1"
                     android:text="pEp Types"
-                    android:layout_weight="1"/>
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
 
-            <Button
+                <Button
+                    android:id="@+id/bRunTypes"
                     style="?android:attr/buttonStyleSmall"
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
-                    android:text="Run"
-                    android:id="@+id/bRunTypes"
-                    android:layout_weight="1"/>
-        </LinearLayout>
-        <LinearLayout
-                android:orientation="horizontal"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content">
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
 
-            <TextView
+                <TextView
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
-                    android:textAppearance="?android:attr/textAppearanceMedium"
-                    android:text="pEp Alice Bob John"
-                    android:layout_weight="1"/>
+                    android:layout_weight="1"
+                    android:text="Server Lookup"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
 
-            <Button
+                <Button
+                    android:id="@+id/bRunServerLookup"
                     style="?android:attr/buttonStyleSmall"
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
-                    android:text="Run"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Encrypt and decreypt"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
+
+                <Button
+                    android:id="@+id/encrypt_and_decrypt"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Encrypt and decreypt without key"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
+
+                <Button
+                    android:id="@+id/encrypt_and_decrypt_without_key"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Ratings"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
+
+                <Button
+                    android:id="@+id/ratings"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Integration test"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
+
+                <Button
                     android:id="@+id/bRunAliceBob"
-                    android:layout_weight="1"/>
-        </LinearLayout>
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
 
-        <LinearLayout
-                android:orientation="horizontal"
+            <LinearLayout
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content">
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
 
-            <TextView
+                <TextView
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
-                    android:textAppearance="?android:attr/textAppearanceMedium"
-                    android:text="Server Lookup"
-                    android:layout_weight="1"/>
+                    android:layout_weight="1"
+                    android:text="Add to blacklist + new key"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
 
-            <Button
+                <Button
+                    android:id="@+id/black_list"
                     style="?android:attr/buttonStyleSmall"
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
-                    android:text="Run"
-                    android:id="@+id/bRunServerLookup"
-                    android:layout_weight="1"/>
-        </LinearLayout>
-        <LinearLayout
-                android:orientation="horizontal"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content">
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
 
-            <TextView
+                <TextView
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
-                    android:textAppearance="?android:attr/textAppearanceMedium"
-                    android:text="KeyGen"
-                    android:layout_weight="1"/>
+                    android:layout_weight="1"
+                    android:text="Blacklist + send"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
 
-            <Button
+                <Button
+                    android:id="@+id/black_list_and_send"
                     style="?android:attr/buttonStyleSmall"
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
-                    android:text="Run"
-                    android:id="@+id/bRunGenKey"
-                    android:layout_weight="1"/>
-        </LinearLayout>
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
 
-    </LinearLayout>
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Blacklist + delete"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
 
-</RelativeLayout>
+                <Button
+                    android:id="@+id/black_list_and_delete"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Unencrypt subject"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
+
+                <Button
+                    android:id="@+id/unencrypted_subject"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Passive mode"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
+
+                <Button
+                    android:id="@+id/passive_mode"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="enc + dec message to myself"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
+
+                <Button
+                    android:id="@+id/message_me"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Message from me - green"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
+
+                <Button
+                    android:id="@+id/message_from_me_green"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="outgoing color"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
+
+                <Button
+                    android:id="@+id/outgoing_color"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="identity"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
+
+                <Button
+                    android:id="@+id/identity_rating"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Deblacklist rating"
+                    android:textAppearance="?android:attr/textAppearanceMedium" />
+
+                <Button
+                    android:id="@+id/deblacklist"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="Run" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+                <EditText
+                    android:id="@+id/times_to_test"
+                    android:layout_width="30dp"
+                    android:layout_height="wrap_content"
+                    android:text="1"
+                    android:inputType="textEmailAddress" />
+                <Button
+                    android:id="@+id/test_everything"
+                    style="?android:attr/buttonStyleSmall"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="TEST EVERYTHING" />
+            </LinearLayout>
+
+        </LinearLayout>
+    </LinearLayout>
+</ScrollView>

androidTests/app/src/main/res/layout/activity_unit.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/activity_unit"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    tools:context="com.pep.k9.UnitActivity">
+
+</RelativeLayout>

androidTests/app/src/main/res/menu/menu_main.xml

@@ -1,6 +1,8 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
-    <item android:id="@+id/action_settings" android:title="@string/action_settings"
+    <item android:id="@+id/action_settings" android:title="Refresh"
+        android:orderInCategory="100" app:showAsAction="never" />
+    <item android:id="@+id/action_unitary" android:title="Do More things"
         android:orderInCategory="100" app:showAsAction="never" />
 </menu>

androidTests/app/src/test/java/com/pep/k9/MainActivityTest.java

@@ -0,0 +1,10 @@
+package com.pep.k9;
+
+import static org.junit.Assert.*;
+
+/**
+ * Created by arturo on 15/11/16.
+ */
+public class MainActivityTest {
+
+}

androidTests/app/src/test/java/com/pep/k9/UnitaryTest.java

@@ -0,0 +1,49 @@
+package com.pep.k9;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.pEp.jniadapter.Engine;
+import org.pEp.jniadapter.Identity;
+import org.pEp.jniadapter.Message;
+
+import java.util.Vector;
+
+/**
+ * Created by arturo on 15/11/16.
+ */
+public class UnitaryTest {
+
+    @Before
+    public void setUp() throws Exception {
+
+    }
+
+    @Test
+    public void shouldDoSomeStuff() throws Exception {
+        Engine engine;
+        engine = new Engine();
+
+        Message msg = new Message();
+        msg.setFrom(new Identity());
+
+        Vector<Identity> to = new Vector<>();
+        to.add(new Identity());
+        msg.setTo(to);
+
+        msg.setShortmsg("hello, world");
+        String message = "this is a test";
+        msg.setLongmsg(message);
+
+        msg.setDir(Message.Direction.Outgoing);
+
+        Vector<Identity> cc = new Vector<>();
+        cc.add(new Identity());
+        msg.setCc(cc);
+
+        Message encriptedMessage = engine.encrypt_message(msg, null);
+        Engine.decrypt_message_Return decrypt_message_return = engine.decrypt_message(encriptedMessage);
+
+        Assert.assertTrue(decrypt_message_return.dst.getLongmsg().equals(message));
+    }
+}

androidTests/build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.2'
+        classpath 'com.android.tools.build:gradle:2.3.0-alpha1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files