| /* |
| * Copyright 2015 Google Inc. |
| * |
| * 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. |
| */ |
| package com.google.gwt.emultest.java.lang; |
| |
| import static com.google.gwt.emultest.java.lang.JsExceptionViolator.createJsException; |
| import static com.google.gwt.emultest.java.lang.JsExceptionViolator.getBackingJsObject; |
| |
| import com.google.gwt.testing.TestUtils; |
| |
| import jsinterop.annotations.JsMethod; |
| import jsinterop.annotations.JsPackage; |
| import jsinterop.annotations.JsType; |
| |
| /** |
| * Unit tests for JsException behavior. |
| */ |
| public class JsExceptionTest extends ThrowableTestBase { |
| |
| @Override |
| public String getModuleName() { |
| return "com.google.gwt.emultest.EmulSuite"; |
| } |
| |
| // Override removed here to make the test compile in J2CL. |
| // @Override |
| public void runTest() throws Throwable { |
| // Do not run these tests in JVM. |
| if (TestUtils.isJvm()) { |
| return; |
| } |
| } |
| |
| public void testCatchJava() { |
| Object obj = new Object(); |
| Exception e = createJsException(obj); |
| assertJsException(obj, catchJava(createThrower(e))); |
| } |
| |
| public void testCatchNative() { |
| Object obj = new Object(); |
| Exception e = createJsException(obj); |
| assertSame(obj, catchNative(createThrower(e))); |
| } |
| |
| public void testCatchNativePropagatedFromFinally() { |
| Object obj = new Object(); |
| Exception e = createJsException(obj); |
| assertSame(obj, catchNative(wrapWithFinally(createThrower(e)))); |
| assertTrue(keepFinallyAlive); |
| } |
| |
| private static boolean keepFinallyAlive = false; |
| |
| private static Thrower wrapWithFinally(final Thrower thrower) { |
| return new Thrower() { |
| @Override public void throwException() throws Throwable { |
| try { |
| thrower.throwException(); |
| } finally { |
| keepFinallyAlive = true; |
| } |
| } |
| }; |
| } |
| |
| public void testJavaNativeJavaSandwichCatch() { |
| Object obj = new Object(); |
| Exception e = createJsException(obj); |
| assertJsException(obj, javaNativeJavaSandwich(e)); |
| } |
| |
| public void testCatchThrowNative() { |
| Object e; |
| |
| e = "testing"; |
| assertJsException(e, catchJava(createNativeThrower(e))); |
| |
| e = null; |
| assertJsException(e, catchJava(createNativeThrower(e))); |
| |
| e = new Object(); |
| assertJsException(e, catchJava(createNativeThrower(e))); |
| } |
| |
| // jsni throw -> java catch -> java throw -> jsni catch |
| public void testNativeJavaNativeSandwichCatch() { |
| Object e; |
| |
| e = "testing"; |
| assertEquals(e, nativeJavaNativeSandwich(e)); |
| // Devmode will not preserve the same String instance |
| assertEquals(e, nativeJavaNativeSandwich(e)); |
| |
| e = null; |
| assertSame(e, nativeJavaNativeSandwich(e)); |
| |
| e = new Object(); |
| assertSame(e, nativeJavaNativeSandwich(e)); |
| } |
| |
| private Object nativeJavaNativeSandwich(Object e) { |
| return catchNative(createThrower(catchJava(createNativeThrower(e)))); |
| } |
| |
| public void testTypeError() { |
| try { |
| throwTypeError(); |
| fail(); |
| } catch (RuntimeException e) { |
| assertTypeError(e); |
| e = (RuntimeException) javaNativeJavaSandwich(e); |
| assertTypeError(e); |
| } |
| } |
| |
| private static void throwTypeError() { |
| Object nullObject = null; |
| nullObject.toString(); |
| } |
| |
| @JsType(isNative = true, namespace = "<window>") |
| private static class TypeError { } |
| |
| protected static void assertTypeError(RuntimeException e) { |
| assertTrue(getBackingJsObject(e) instanceof TypeError); |
| assertTrue(e.toString().contains("TypeError")); |
| } |
| |
| public void testSvgError() { |
| try { |
| throwSvgError(); |
| fail(); |
| } catch (RuntimeException e) { |
| e = (RuntimeException) javaNativeJavaSandwich(e); |
| } |
| } |
| |
| private static void throwSvgError() { |
| // In old Firefox, this throws an object (not Error): |
| createElementNS("http://www.w3.org/2000/svg", "text").getBBox(); |
| |
| // For other browsers, make sure an exception is thrown to keep the test simple |
| throw new RuntimeException("NS_ERROR_FAILURE"); |
| } |
| |
| @JsMethod(name = "document.createElementNS", namespace = JsPackage.GLOBAL) |
| private static native SVGElement createElementNS(String arg1, String arg2); |
| |
| @JsType(isNative = true, namespace = JsPackage.GLOBAL) |
| private interface SVGElement { |
| void getBBox(); |
| } |
| |
| private static void assertJsException(Object expected, Throwable exception) { |
| assertTrue(exception instanceof RuntimeException); |
| assertEquals(expected, getBackingJsObject(exception)); |
| } |
| } |