Add unit instrumentation tests for Chromoting Android code.

This adds a new GYP target for building Java unittests for Chromoting,
including a simple unittest example.

BUG=322095

Review URL: https://codereview.chromium.org/115953003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242060 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 79 insertions, 0 deletions

diff --git a/remoting/android/javatests/AndroidManifest.xml b/remoting/android/javatests/AndroidManifest.xml
new file mode 100644
index 0000000..b57228c
--- /dev/null
+++ b/remoting/android/javatests/AndroidManifest.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+  <!-- Copyright 2013 The Chromium Authors. All rights reserved.
+       Use of this source code is governed by a BSD-style license that can be
+       found in the LICENSE file.
+  -->
+
+  <!-- package name must be unique so suffix with "tests" so package loader
+       doesn't ignore this. -->
+  <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="org.chromium.chromoting.tests">
+    <!-- We add an application tag here just so that we can indicate that this
+         package needs to link against the android.test library, which is
+         needed when building test cases. -->
+    <application>
+        <uses-library android:name="android.test.runner" />
+    </application>
+    <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="14" />
+    <instrumentation android:name="android.test.InstrumentationTestRunner"
+        android:targetPackage="org.chromium.chromoting"
+        android:label="Tests for org.chromium.chromoting"/>
+    <uses-permission android:name="android.permission.RUN_INSTRUMENTATION" />
+</manifest>
diff --git a/remoting/android/javatests/src/org/chromium/chromoting/SwipePinchDetectorTest.java b/remoting/android/javatests/src/org/chromium/chromoting/SwipePinchDetectorTest.java
new file mode 100644
index 0000000..1deee92
--- /dev/null
+++ b/remoting/android/javatests/src/org/chromium/chromoting/SwipePinchDetectorTest.java
@@ -0,0 +1,57 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chromoting;
+
+import android.os.SystemClock;
+import android.test.InstrumentationTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+import android.view.InputDevice;
+import android.view.MotionEvent;
+
+import org.chromium.base.test.util.Feature;
+
+/** Tests for {@link SwipePinchDetector}. */
+public class SwipePinchDetectorTest extends InstrumentationTestCase {
+    private SwipePinchDetector mDetector;
+    private MotionEvent.PointerProperties[] mPointers;
+
+    @Override
+    public void setUp() {
+        mDetector = new SwipePinchDetector(getInstrumentation().getTargetContext());
+        MotionEvent.PointerProperties pointer0 = new MotionEvent.PointerProperties();
+        pointer0.id = 0;
+        MotionEvent.PointerProperties pointer1 = new MotionEvent.PointerProperties();
+        pointer1.id = 1;
+        mPointers = new MotionEvent.PointerProperties[] {pointer0, pointer1};
+    }
+
+    /** Verify that a simple swipe gesture is recognized as a swipe. */
+    @SmallTest
+    @Feature({"Chromoting"})
+    public void testSwipeRecognition() throws Exception {
+        final long eventTime = SystemClock.uptimeMillis();
+        MotionEvent.PointerCoords p0 = new MotionEvent.PointerCoords();
+        MotionEvent.PointerCoords p1 = new MotionEvent.PointerCoords();
+        p1.x = 50;
+        p1.y = 0;
+        MotionEvent.PointerCoords[] pointerCoords = {p0, p1};
+        MotionEvent event = MotionEvent.obtain(eventTime, eventTime,
+                MotionEvent.ACTION_POINTER_DOWN, 2, mPointers, pointerCoords, 0, 0, 1, 1, 0, 0,
+                InputDevice.SOURCE_TOUCHSCREEN , 0);
+        mDetector.onTouchEvent(event);
+        assertFalse(mDetector.isSwiping());
+        assertFalse(mDetector.isPinching());
+
+        // Any distance greater than the touch-slop threshold should work.
+        p0.y += 100;
+        p1.y += 100;
+
+        event = MotionEvent.obtain(eventTime, eventTime, MotionEvent.ACTION_MOVE, 2, mPointers,
+                pointerCoords, 0, 0, 1, 1, 0, 0, InputDevice.SOURCE_TOUCHSCREEN , 0);
+        mDetector.onTouchEvent(event);
+        assertTrue(mDetector.isSwiping());
+        assertFalse(mDetector.isPinching());
+    }
+}