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- // Copyright 2007 The Closure Library Authors. All Rights Reserved.
- //
- // 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.
- goog.provide('goog.debugEnhanceErrorTest');
- goog.setTestOnly('goog.debugEnhanceErrorTest');
- goog.require('goog.debug');
- goog.require('goog.testing.jsunit');
- var THROW_STRING = 1;
- var THROW_NPE = 2;
- var THROW_ERROR = 3;
- var THROW_ENHANCED_ERROR = 4;
- var THROW_ENHANCED_STRING = 5;
- var THROW_OBJECT = 6;
- if (typeof debug == 'undefined') {
- function debug(str) {
- if (window.console) window.console.log(str);
- }
- }
- function testEnhanceError() {
- // Tests are like this:
- // [test num, expect something in the stack, expect an extra message]
- var tests = [
- [THROW_STRING], [THROW_OBJECT], [THROW_NPE], [THROW_ERROR],
- [THROW_ENHANCED_ERROR, 'throwEnhancedError', 'an enhanced error'],
- [THROW_ENHANCED_STRING, 'throwEnhancedString']
- ];
- for (var i = 0; i < tests.length; ++i) {
- var test = tests[i];
- var testNum = test[0];
- var testInStack = test[1];
- var testExtraMessage = test[2] || null;
- try {
- foo(testNum);
- } catch (e) {
- debug(goog.debug.expose(e));
- var s = e.stack.split('\n');
- for (var j = 0; j < s.length; ++j) {
- debug(s[j]);
- }
- // 'baz' is always in the stack
- assertTrue('stack should contain "baz"', e.stack.indexOf('baz') != -1);
- if (testInStack) {
- assertTrue(
- 'stack should contain "' + testInStack + '"',
- e.stack.indexOf(testInStack) != -1);
- }
- if (testExtraMessage) {
- // 2 messages
- assertTrue(
- 'message0 should contain "' + testExtraMessage + '"',
- e.message0.indexOf(testExtraMessage) != -1);
- assertTrue(
- 'message1 should contain "message from baz"',
- e.message1.indexOf('message from baz') != -1);
- } else {
- // 1 message
- assertTrue(
- 'message0 should contain "message from baz"',
- e.message0.indexOf('message from baz') != -1);
- }
- continue;
- }
- fail('expected to catch an exception');
- }
- }
- function foo(testNum) {
- bar(testNum);
- }
- function bar(testNum) {
- baz(testNum);
- }
- function baz(testNum) {
- try {
- switch (testNum) {
- case THROW_STRING:
- throwString();
- break;
- case THROW_NPE:
- throwNpe();
- break;
- case THROW_ERROR:
- throwError();
- break;
- case THROW_ENHANCED_ERROR:
- throwEnhancedError();
- break;
- case THROW_ENHANCED_STRING:
- throwEnhancedString();
- break;
- case THROW_OBJECT:
- throwObject();
- break;
- }
- } catch (e) {
- throw goog.debug.enhanceError(e, 'message from baz');
- }
- }
- function throwString() {
- throw 'a string';
- }
- function throwNpe() {
- var nada = null;
- nada.noSuchFunction();
- }
- function throwError() {
- throw Error('an error');
- }
- function throwEnhancedError() {
- throw goog.debug.enhanceError(Error('dang!'), 'an enhanced error');
- }
- function throwEnhancedString() {
- throw goog.debug.enhanceError('oh nos!');
- }
- /**
- * @throws {*}
- */
- function throwObject() {
- throw {property: 'value'};
- }
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