Upstream JavaBridge tests.

content/shell/android/javatests/src/org/chromium/content_shell/JavaBridgeBasicsTest.java

+// Copyright (c) 2012 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.content_shell;
+
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.chromium.base.test.Feature;
+import org.chromium.content.browser.JavascriptInterface;
+import org.chromium.content.browser.test.TestContentViewClient;
+
+/**
+ * Part of the test suite for the 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
+ */
+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();
+        setUpContentView(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 {
+        injectObjectAndReload(object, name, false);
+    }
+
+    protected void injectObjectAndReload(final Object object, final String name,
+            final boolean requireAnnotation) throws Throwable {
+        TestContentViewClient.OnPageFinishedHelper onPageFinishedHelper =
+                mContentViewClient.getOnPageFinishedHelper();
+        int currentCallCount = onPageFinishedHelper.getCallCount();
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                getContentView().getContentViewCore().addJavascriptInterface(object, name,
+                        requireAnnotation);
+                getContentView().reload();
+            }
+        });
+        onPageFinishedHelper.waitForCallback(currentCallCount);
+    }
+
+    // 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());
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testTypeOfInjectedObject() throws Throwable {
+        assertEquals("object", executeJavaScriptAndGetStringResult("typeof testController"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testAdditionNotReflectedUntilReload() throws Throwable {
+        assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testObject"));
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                getContentView().getContentViewCore().addJavascriptInterface(new Object(),
+                                                                             "testObject", false);
+            }
+        });
+        assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testObject"));
+        TestContentViewClient.OnPageFinishedHelper onPageFinishedHelper =
+                mContentViewClient.getOnPageFinishedHelper();
+        int currentCallCount = onPageFinishedHelper.getCallCount();
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                getContentView().reload();
+            }
+        });
+        onPageFinishedHelper.waitForCallback(currentCallCount);
+        assertEquals("object", executeJavaScriptAndGetStringResult("typeof testObject"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testRemovalNotReflectedUntilReload() throws Throwable {
+        injectObjectAndReload(new Object(), "testObject");
+        assertEquals("object", executeJavaScriptAndGetStringResult("typeof testObject"));
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                getContentView().getContentViewCore().removeJavascriptInterface("testObject");
+            }
+        });
+        assertEquals("object", executeJavaScriptAndGetStringResult("typeof testObject"));
+        TestContentViewClient.OnPageFinishedHelper onPageFinishedHelper =
+                mContentViewClient.getOnPageFinishedHelper();
+        int currentCallCount = onPageFinishedHelper.getCallCount();
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                getContentView().reload();
+            }
+        });
+        onPageFinishedHelper.waitForCallback(currentCallCount);
+        assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testObject"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testRemoveObjectNotAdded() throws Throwable {
+        TestContentViewClient.OnPageFinishedHelper onPageFinishedHelper =
+                mContentViewClient.getOnPageFinishedHelper();
+        int currentCallCount = onPageFinishedHelper.getCallCount();
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                getContentView().getContentViewCore().removeJavascriptInterface("foo");
+                getContentView().reload();
+            }
+        });
+        onPageFinishedHelper.waitForCallback(currentCallCount);
+        assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof foo"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testTypeOfMethod() throws Throwable {
+        assertEquals("function",
+                executeJavaScriptAndGetStringResult("typeof testController.setStringValue"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testTypeOfInvalidMethod() throws Throwable {
+        assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testController.foo"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testCallingInvalidMethodRaisesException() throws Throwable {
+        assertRaisesException("testController.foo()");
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testUncaughtJavaExceptionRaisesJavaScriptException() 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.
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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.
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testCallStaticMethod() throws Throwable {
+        injectObjectAndReload(new ObjectWithStaticMethod(), "testObject");
+        executeJavaScript("testController.setStringValue(testObject.staticMethod())");
+        assertEquals("foo", mTestController.waitForStringValue());
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testPrivateMethodNotExposed() throws Throwable {
+        injectObjectAndReload(new Object() {
+            private void method() {}
+            protected void method2() {}
+        }, "testObject");
+        assertEquals("undefined",
+                executeJavaScriptAndGetStringResult("typeof testObject.method"));
+        assertEquals("undefined",
+                executeJavaScriptAndGetStringResult("typeof testObject.method2"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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());
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testInjectNullObjectIsIgnored() throws Throwable {
+        injectObjectAndReload(null, "testObject");
+        assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testObject"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testReplaceInjectedObjectWithNullObjectIsIgnored() throws Throwable {
+        injectObjectAndReload(new Object(), "testObject");
+        assertEquals("object", executeJavaScriptAndGetStringResult("typeof testObject"));
+        injectObjectAndReload(null, "testObject");
+        assertEquals("object", executeJavaScriptAndGetStringResult("typeof testObject"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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());
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testCallMethodWithWrongNumberOfArgumentsRaisesException() throws Throwable {
+        assertRaisesException("testController.setIntValue()");
+        assertRaisesException("testController.setIntValue(42, 42)");
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testObjectPersistsAcrossPageLoads() throws Throwable {
+        assertEquals("object", executeJavaScriptAndGetStringResult("typeof testController"));
+        TestContentViewClient.OnPageFinishedHelper onPageFinishedHelper =
+                mContentViewClient.getOnPageFinishedHelper();
+        int currentCallCount = onPageFinishedHelper.getCallCount();
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                getContentView().reload();
+            }
+        });
+        onPageFinishedHelper.waitForCallback(currentCallCount);
+        assertEquals("object", executeJavaScriptAndGetStringResult("typeof testController"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testSameObjectInjectedMultipleTimes() throws Throwable {
+        class TestObject {
+            private int mNumMethodInvocations;
+            public void method() { mTestController.setIntValue(++mNumMethodInvocations); }
+        }
+        final TestObject testObject = new TestObject();
+        TestContentViewClient.OnPageFinishedHelper onPageFinishedHelper =
+                mContentViewClient.getOnPageFinishedHelper();
+        int currentCallCount = onPageFinishedHelper.getCallCount();
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                getContentView().getContentViewCore().addJavascriptInterface(testObject,
+                                                                             "testObject1", false);
+                getContentView().getContentViewCore().addJavascriptInterface(testObject,
+                                                                             "testObject2", false);
+                getContentView().reload();
+            }
+        });
+        onPageFinishedHelper.waitForCallback(currentCallCount);
+        executeJavaScript("testObject1.method()");
+        assertEquals(1, mTestController.waitForIntValue());
+        executeJavaScript("testObject2.method()");
+        assertEquals(2, mTestController.waitForIntValue());
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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());
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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;
+            }
+        };
+        TestContentViewClient.OnPageFinishedHelper onPageFinishedHelper =
+                mContentViewClient.getOnPageFinishedHelper();
+        int currentCallCount = onPageFinishedHelper.getCallCount();
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                getContentView().getContentViewCore().addJavascriptInterface(object, "testObject",
+                                                                             false);
+                getContentView().getContentViewCore().addJavascriptInterface(innerObject,
+                                                                             "innerObject", false);
+                getContentView().reload();
+            }
+        });
+        onPageFinishedHelper.waitForCallback(currentCallCount);
+        executeJavaScript("testObject.getInnerObject().method()");
+        assertEquals(1, mTestController.waitForIntValue());
+        executeJavaScript("innerObject.method()");
+        assertEquals(2, mTestController.waitForIntValue());
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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());
+            }
+        });
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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());
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testPrivateInheritedMethod() throws Throwable {
+        class Base {
+            private void method() {}
+        }
+        class Derived extends Base {
+        }
+        injectObjectAndReload(new Derived(), "testObject");
+        assertEquals("undefined", executeJavaScriptAndGetStringResult("typeof testObject.method"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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());
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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());
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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()"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testReflectPublicField() throws Throwable {
+        injectObjectAndReload(new Object() {
+            public String field = "foo";
+        }, "testObject");
+        assertEquals("foo", executeJavaScriptAndGetStringResult(
+                "testObject.getClass().getField('field').get(testObject).toString()"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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)");
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    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)");
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testAllowNonAnnotatedMethods() throws Throwable {
+        injectObjectAndReload(new Object() {
+            public String allowed() { return "foo"; }
+        }, "testObject", false);
+
+        // Test calling a method of an explicitly inherited class (Base#allowed()).
+        assertEquals("foo", executeJavaScriptAndGetStringResult("testObject.allowed()"));
+
+        // Test calling a method of an implicitly inherited class (Object#getClass()).
+        assertEquals("object", executeJavaScriptAndGetStringResult("typeof testObject.getClass()"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testAllowOnlyAnnotatedMethods() throws Throwable {
+        class Test {
+            public String allowed() { return "foo"; }
+        }
+
+        injectObjectAndReload(new Object() {
+            @JavascriptInterface
+            public String allowed() { return "foo"; }
+
+            public String disallowed() { return "bar"; }
+        }, "testObject", true);
+
+        // getClass() is an Object method and does not have the @JavascriptInterface annotation and
+        // should not be able to be called.
+        assertRaisesException("testObject.getClass()");
+        assertEquals("undefined", executeJavaScriptAndGetStringResult(
+                "typeof testObject.getClass"));
+
+        // allowed() is marked with the @JavascriptInterface annotation and should be allowed to be
+        // called.
+        assertEquals("foo", executeJavaScriptAndGetStringResult("testObject.allowed()"));
+
+        // disallowed() is not marked with the @JavascriptInterface annotation and should not be
+        // able to be called.
+        assertRaisesException("testObject.disallowed()");
+        assertEquals("undefined", executeJavaScriptAndGetStringResult(
+                "typeof testObject.disallowed"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testAnnotationRequirementRetainsPropertyAcrossObjects() throws Throwable {
+        class Test {
+            @JavascriptInterface
+            public String safe() { return "foo"; }
+
+            public String unsafe() { return "bar"; }
+        }
+
+        class TestReturner {
+            @JavascriptInterface
+            public Test getTest() { return new Test(); }
+        }
+
+        // First test with safe mode off.
+        injectObjectAndReload(new TestReturner(), "unsafeTestObject", false);
+
+        // safe() should be able to be called regardless of whether or not we are in safe mode.
+        assertEquals("foo", executeJavaScriptAndGetStringResult(
+                "unsafeTestObject.getTest().safe()"));
+        // unsafe() should be able to be called because we are not in safe mode.
+        assertEquals("bar", executeJavaScriptAndGetStringResult(
+                "unsafeTestObject.getTest().unsafe()"));
+
+        // Now test with safe mode on.
+        injectObjectAndReload(new TestReturner(), "safeTestObject", true);
+
+        // safe() should be able to be called regardless of whether or not we are in safe mode.
+        assertEquals("foo", executeJavaScriptAndGetStringResult(
+                "safeTestObject.getTest().safe()"));
+        // unsafe() should not be able to be called because we are in safe mode.
+        assertRaisesException("safeTestObject.getTest().unsafe()");
+        assertEquals("undefined", executeJavaScriptAndGetStringResult(
+                "typeof safeTestObject.getTest().unsafe"));
+        // getClass() is an Object method and does not have the @JavascriptInterface annotation and
+        // should not be able to be called.
+        assertRaisesException("safeTestObject.getTest().getClass()");
+        assertEquals("undefined", executeJavaScriptAndGetStringResult(
+                "typeof safeTestObject.getTest().getClass"));
+    }
+
+    @SmallTest
+    @Feature({"Android-WebView", "Android-JavaBridge"})
+    public void testAnnotationDoesNotGetInherited() throws Throwable {
+        class Base {
+            @JavascriptInterface
+            public void base() { }
+        }
+
+        class Child extends Base {
+            @Override
+            public void base() { }
+        }
+
+        injectObjectAndReload(new Child(), "testObject", true);
+
+        // base() is inherited.  The inherited method does not have the @JavascriptInterface
+        // annotation and should not be able to be called.
+        assertRaisesException("testObject.base()");
+        assertEquals("undefined", executeJavaScriptAndGetStringResult(
+                "typeof testObject.base"));
+    }
+}