Added units tests for JsCallbackHandler

Author: aforcier

WordPressEditor/src/androidTest/java/org/wordpress/android/editor/JsCallbackHandlerTest.java

@@ -0,0 +1,96 @@
+package org.wordpress.android.editor;
+
+import android.util.Log;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowLog;
+import org.wordpress.android.util.AppLog;
+
+import java.util.List;
+
+import static junit.framework.Assert.assertEquals;
+import static junit.framework.Assert.assertFalse;
+import static org.mockito.Mockito.mock;
+import static org.robolectric.shadows.ShadowLog.LogItem;
+
+@Config(emulateSdk = 18)
+@RunWith(RobolectricTestRunner.class)
+public class JsCallbackHandlerTest {
+    private final static String EDITOR_LOG_TAG = "WordPress-" + AppLog.T.EDITOR.toString();
+
+    private JsCallbackReceiver mJsCallbackReceiver;
+
+    @Before
+    public void setUp() {
+        EditorFragment editorFragment = mock(EditorFragment.class);
+        mJsCallbackReceiver = new JsCallbackReceiver(editorFragment);
+    }
+
+    @Test
+    public void testCallbacksRecognized() {
+        mJsCallbackReceiver.executeCallback("callback-dom-loaded", "");
+        assertNotLogged("Unhandled callback");
+
+        mJsCallbackReceiver.executeCallback("callback-new-field", "field-name");
+        assertNotLogged("Unhandled callback");
+
+        mJsCallbackReceiver.executeCallback("callback-input", "arguments");
+        assertNotLogged("Unhandled callback");
+
+        mJsCallbackReceiver.executeCallback("callback-selection-changed", "arguments");
+        assertNotLogged("Unhandled callback");
+
+        mJsCallbackReceiver.executeCallback("callback-selection-style", "arguments");
+        assertNotLogged("Unhandled callback");
+
+        mJsCallbackReceiver.executeCallback("callback-focus-in", "");
+        assertNotLogged("Unhandled callback");
+
+        mJsCallbackReceiver.executeCallback("callback-focus-out", "");
+        assertNotLogged("Unhandled callback");
+
+        mJsCallbackReceiver.executeCallback("callback-image-replaced", "arguments");
+        assertNotLogged("Unhandled callback");
+
+        mJsCallbackReceiver.executeCallback("callback-image-tap", "arguments");
+        assertNotLogged("Unhandled callback");
+
+        mJsCallbackReceiver.executeCallback("callback-link-tap", "arguments");
+        assertNotLogged("Unhandled callback");
+
+        mJsCallbackReceiver.executeCallback("callback-log", "arguments");
+        assertNotLogged("Unhandled callback");
+    }
+
+    @Test
+    public void testUnknownCallbackShouldBeLogged() {
+        mJsCallbackReceiver.executeCallback("callback-does-not-exist", "content");
+        assertLogged(Log.DEBUG, EDITOR_LOG_TAG, "Unhandled callback: callback-does-not-exist:content", null);
+    }
+
+    @Test
+    public void testCallbackLog() {
+        mJsCallbackReceiver.executeCallback("callback-log", "msg=test-message");
+        assertLogged(Log.DEBUG, EDITOR_LOG_TAG, "callback-log: test-message", null);
+    }
+
+    private void assertLogged(int type, String tag, String msg, Throwable throwable) {
+        LogItem lastLog = ShadowLog.getLogs().get(0);
+        assertEquals(type, lastLog.type);
+        assertEquals(msg, lastLog.msg);
+        assertEquals(tag, lastLog.tag);
+        assertEquals(throwable, lastLog.throwable);
+    }
+
+    private void assertNotLogged(String msg) {
+        List<LogItem> logList = ShadowLog.getLogs();
+        if (!logList.isEmpty()) {
+            assertFalse(logList.get(0).msg.contains(msg));
+            ShadowLog.reset();
+        }
+    }
+}