/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Part of the test suite for the WebView's Java Bridge. Tests a number of features including ...
* - The type of injected objects
* - The type of their methods
* - Replacing objects
* - Removing objects
* - Access control
* - Calling methods on returned objects
* - Multiply injected objects
* - Threading
* - Inheritance
*
* To run this test ...
* adb shell am instrument -w -e class com.android.webviewtests.JavaBridgeBasicsTest \
* com.android.webviewtests/android.test.InstrumentationTestRunner
*/
package com.android.webviewtests;
public class JavaBridgeBasicsTest extends JavaBridgeTestBase {
private class TestController extends Controller {
private int mIntValue;
private long mLongValue;
private String mStringValue;
private boolean mBooleanValue;
public synchronized void setIntValue(int x) {
mIntValue = x;
notifyResultIsReady();
}
public synchronized void setLongValue(long x) {
mLongValue = x;
notifyResultIsReady();
}
public synchronized void setStringValue(String x) {
mStringValue = x;
notifyResultIsReady();
}
public synchronized void setBooleanValue(boolean x) {
mBooleanValue = x;
notifyResultIsReady();
}
public synchronized int waitForIntValue() {
waitForResult();
return mIntValue;
}
public synchronized long waitForLongValue() {
waitForResult();
return mLongValue;
}
public synchronized String waitForStringValue() {
waitForResult();
return mStringValue;
}
public synchronized boolean waitForBooleanValue() {
waitForResult();
return mBooleanValue;
}
}
private static class ObjectWithStaticMethod {
public static String staticMethod() {
return "foo";
}
}
TestController mTestController;
@Override
protected void setUp() throws Exception {
super.setUp();
mTestController = new TestController();
setUpWebView(mTestController, "testController");
}
// Note that this requires that we can pass a JavaScript string to Java.
protected String executeJavaScriptAndGetStringResult(String script) throws Throwable {
executeJavaScript("testController.setStringValue(" + script + ");");
return mTestController.waitForStringValue();
}
protected void injectObjectAndReload(final Object object, final String name) throws Throwable {
runTestOnUiThread(new Runnable() {
@Override
public void run() {
getWebView().addJavascriptInterface(object, name);
getWebView().reload();
}
});
mWebViewClient.waitForOnPageFinished();
}
// Note that this requires that we can pass a JavaScript boolean to Java.
private void assertRaisesException(String script) throws Throwable {
executeJavaScript("try {" +
script + ";" +
" testController.setBooleanValue(false);" +
"} catch (exception) {" +
" testController.setBooleanValue(true);" +
"}");
assertTrue(mTestController.waitForBooleanValue());
}
public void testTypeOfInjectedObject() throws Throwable {
assertEquals("object", executeJavaScriptAndGetStringResult("typeof testController"));
}
public void testAdditionNotReflectedUntilReload() throws Throwable {
assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testObject"));
runTestOnUiThread(new Runnable() {
@Override
public void run() {
getWebView().addJavascriptInterface(new Object(), "testObject");
}
});
assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testObject"));
runTestOnUiThread(new Runnable() {
@Override
public void run() {
getWebView().reload();
}
});
mWebViewClient.waitForOnPageFinished();
assertEquals("object", executeJavaScriptAndGetStringResult("typeof testObject"));
}
public void testRemovalNotReflectedUntilReload() throws Throwable {
injectObjectAndReload(new Object(), "testObject");
assertEquals("object", executeJavaScriptAndGetStringResult("typeof testObject"));
runTestOnUiThread(new Runnable() {
@Override
public void run() {
getWebView().removeJavascriptInterface("testObject");
}
});
assertEquals("object", executeJavaScriptAndGetStringResult("typeof testObject"));
runTestOnUiThread(new Runnable() {
@Override
public void run() {
getWebView().reload();
}
});
mWebViewClient.waitForOnPageFinished();
assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testObject"));
}
public void testRemoveObjectNotAdded() throws Throwable {
runTestOnUiThread(new Runnable() {
@Override
public void run() {
getWebView().removeJavascriptInterface("foo");
getWebView().reload();
}
});
mWebViewClient.waitForOnPageFinished();
assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof foo"));
}
public void testTypeOfMethod() throws Throwable {
assertEquals("function",
executeJavaScriptAndGetStringResult("typeof testController.setStringValue"));
}
public void testTypeOfInvalidMethod() throws Throwable {
assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testController.foo"));
}
public void testCallingInvalidMethodRaisesException() throws Throwable {
assertRaisesException("testController.foo()");
}
public void testUncaughtJavaExceptionRaisesJavaException() throws Throwable {
injectObjectAndReload(new Object() {
public void method() { throw new RuntimeException("foo"); }
}, "testObject");
assertRaisesException("testObject.method()");
}
// Note that this requires that we can pass a JavaScript string to Java.
public void testTypeOfStaticMethod() throws Throwable {
injectObjectAndReload(new ObjectWithStaticMethod(), "testObject");
executeJavaScript("testController.setStringValue(typeof testObject.staticMethod)");
assertEquals("function", mTestController.waitForStringValue());
}
// Note that this requires that we can pass a JavaScript string to Java.
public void testCallStaticMethod() throws Throwable {
injectObjectAndReload(new ObjectWithStaticMethod(), "testObject");
executeJavaScript("testController.setStringValue(testObject.staticMethod())");
assertEquals("foo", mTestController.waitForStringValue());
}
public void testPrivateMethodNotExposed() throws Throwable {
injectObjectAndReload(new Object() {
private void method() {}
}, "testObject");
assertEquals("undefined",
executeJavaScriptAndGetStringResult("typeof testObject.method"));
}
public void testReplaceInjectedObject() throws Throwable {
injectObjectAndReload(new Object() {
public void method() { mTestController.setStringValue("object 1"); }
}, "testObject");
executeJavaScript("testObject.method()");
assertEquals("object 1", mTestController.waitForStringValue());
injectObjectAndReload(new Object() {
public void method() { mTestController.setStringValue("object 2"); }
}, "testObject");
executeJavaScript("testObject.method()");
assertEquals("object 2", mTestController.waitForStringValue());
}
public void testInjectNullObjectIsIgnored() throws Throwable {
injectObjectAndReload(null, "testObject");
assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testObject"));
}
public void testReplaceInjectedObjectWithNullObjectIsIgnored() throws Throwable {
injectObjectAndReload(new Object(), "testObject");
assertEquals("object", executeJavaScriptAndGetStringResult("typeof testObject"));
injectObjectAndReload(null, "testObject");
assertEquals("object", executeJavaScriptAndGetStringResult("typeof testObject"));
}
public void testCallOverloadedMethodWithDifferentNumberOfArguments() throws Throwable {
injectObjectAndReload(new Object() {
public void method() { mTestController.setStringValue("0 args"); }
public void method(int x) { mTestController.setStringValue("1 arg"); }
public void method(int x, int y) { mTestController.setStringValue("2 args"); }
}, "testObject");
executeJavaScript("testObject.method()");
assertEquals("0 args", mTestController.waitForStringValue());
executeJavaScript("testObject.method(42)");
assertEquals("1 arg", mTestController.waitForStringValue());
executeJavaScript("testObject.method(null)");
assertEquals("1 arg", mTestController.waitForStringValue());
executeJavaScript("testObject.method(undefined)");
assertEquals("1 arg", mTestController.waitForStringValue());
executeJavaScript("testObject.method(42, 42)");
assertEquals("2 args", mTestController.waitForStringValue());
}
public void testCallMethodWithWrongNumberOfArgumentsRaisesException() throws Throwable {
assertRaisesException("testController.setIntValue()");
assertRaisesException("testController.setIntValue(42, 42)");
}
public void testObjectPersistsAcrossPageLoads() throws Throwable {
assertEquals("object", executeJavaScriptAndGetStringResult("typeof testController"));
runTestOnUiThread(new Runnable() {
@Override
public void run() {
getWebView().reload();
}
});
mWebViewClient.waitForOnPageFinished();
assertEquals("object", executeJavaScriptAndGetStringResult("typeof testController"));
}
public void testSameObjectInjectedMultipleTimes() throws Throwable {
class TestObject {
private int mNumMethodInvocations;
public void method() { mTestController.setIntValue(++mNumMethodInvocations); }
}
final TestObject testObject = new TestObject();
runTestOnUiThread(new Runnable() {
@Override
public void run() {
getWebView().addJavascriptInterface(testObject, "testObject1");
getWebView().addJavascriptInterface(testObject, "testObject2");
getWebView().reload();
}
});
mWebViewClient.waitForOnPageFinished();
executeJavaScript("testObject1.method()");
assertEquals(1, mTestController.waitForIntValue());
executeJavaScript("testObject2.method()");
assertEquals(2, mTestController.waitForIntValue());
}
public void testCallMethodOnReturnedObject() throws Throwable {
injectObjectAndReload(new Object() {
public Object getInnerObject() {
return new Object() {
public void method(int x) { mTestController.setIntValue(x); }
};
}
}, "testObject");
executeJavaScript("testObject.getInnerObject().method(42)");
assertEquals(42, mTestController.waitForIntValue());
}
public void testReturnedObjectInjectedElsewhere() throws Throwable {
class InnerObject {
private int mNumMethodInvocations;
public void method() { mTestController.setIntValue(++mNumMethodInvocations); }
}
final InnerObject innerObject = new InnerObject();
final Object object = new Object() {
public InnerObject getInnerObject() {
return innerObject;
}
};
runTestOnUiThread(new Runnable() {
@Override
public void run() {
getWebView().addJavascriptInterface(object, "testObject");
getWebView().addJavascriptInterface(innerObject, "innerObject");
getWebView().reload();
}
});
mWebViewClient.waitForOnPageFinished();
executeJavaScript("testObject.getInnerObject().method()");
assertEquals(1, mTestController.waitForIntValue());
executeJavaScript("innerObject.method()");
assertEquals(2, mTestController.waitForIntValue());
}
public void testMethodInvokedOnBackgroundThread() throws Throwable {
injectObjectAndReload(new Object() {
public void captureThreadId() {
mTestController.setLongValue(Thread.currentThread().getId());
}
}, "testObject");
executeJavaScript("testObject.captureThreadId()");
final long threadId = mTestController.waitForLongValue();
assertFalse(threadId == Thread.currentThread().getId());
runTestOnUiThread(new Runnable() {
@Override
public void run() {
assertFalse(threadId == Thread.currentThread().getId());
}
});
}
public void testPublicInheritedMethod() throws Throwable {
class Base {
public void method(int x) { mTestController.setIntValue(x); }
}
class Derived extends Base {
}
injectObjectAndReload(new Derived(), "testObject");
assertEquals("function", executeJavaScriptAndGetStringResult("typeof testObject.method"));
executeJavaScript("testObject.method(42)");
assertEquals(42, mTestController.waitForIntValue());
}
public void testPrivateInheritedMethod() throws Throwable {
class Base {
private void method() {}
}
class Derived extends Base {
}
injectObjectAndReload(new Derived(), "testObject");
assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testObject.method"));
}
public void testOverriddenMethod() throws Throwable {
class Base {
public void method() { mTestController.setStringValue("base"); }
}
class Derived extends Base {
public void method() { mTestController.setStringValue("derived"); }
}
injectObjectAndReload(new Derived(), "testObject");
executeJavaScript("testObject.method()");
assertEquals("derived", mTestController.waitForStringValue());
}
public void testEnumerateMembers() throws Throwable {
injectObjectAndReload(new Object() {
public void method() {}
private void privateMethod() {}
public int field;
private int privateField;
}, "testObject");
executeJavaScript(
"var result = \"\"; " +
"for (x in testObject) { result += \" \" + x } " +
"testController.setStringValue(result);");
// LIVECONNECT_COMPLIANCE: Should be able to enumerate members.
assertEquals("", mTestController.waitForStringValue());
}
public void testReflectPublicMethod() throws Throwable {
injectObjectAndReload(new Object() {
public String method() { return "foo"; }
}, "testObject");
assertEquals("foo", executeJavaScriptAndGetStringResult(
"testObject.getClass().getMethod('method', null).invoke(testObject, null)" +
".toString()"));
}
public void testReflectPublicField() throws Throwable {
injectObjectAndReload(new Object() {
public String field = "foo";
}, "testObject");
assertEquals("foo", executeJavaScriptAndGetStringResult(
"testObject.getClass().getField('field').get(testObject).toString()"));
}
public void testReflectPrivateMethodRaisesException() throws Throwable {
injectObjectAndReload(new Object() {
private void method() {};
}, "testObject");
assertRaisesException("testObject.getClass().getMethod('method', null)");
// getDeclaredMethod() is able to access a private method, but invoke()
// throws a Java exception.
assertRaisesException(
"testObject.getClass().getDeclaredMethod('method', null).invoke(testObject, null)");
}
public void testReflectPrivateFieldRaisesException() throws Throwable {
injectObjectAndReload(new Object() {
private int field;
}, "testObject");
assertRaisesException("testObject.getClass().getField('field')");
// getDeclaredField() is able to access a private field, but getInt()
// throws a Java exception.
assertRaisesException(
"testObject.getClass().getDeclaredField('field').getInt(testObject)");
}
}
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