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/*
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* Copyright 2004 ThoughtWorks, Inc
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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function TestLoop(commandFactory) {
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this.commandFactory = commandFactory;
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}
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TestLoop.prototype = {
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start : function() {
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selenium.reset();
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LOG.debug("currentTest.start()");
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this.continueTest();
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},
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continueTest : function() {
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/**
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* Select the next command and continue the test.
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*/
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LOG.debug("currentTest.continueTest() - acquire the next command");
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if (! this.aborted) {
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this.currentCommand = this.nextCommand();
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}
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if (! this.requiresCallBack) {
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this.continueTestAtCurrentCommand();
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} // otherwise, just finish and let the callback invoke continueTestAtCurrentCommand()
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},
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continueTestAtCurrentCommand : function() {
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LOG.debug("currentTest.continueTestAtCurrentCommand()");
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if (this.currentCommand) {
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// TODO: rename commandStarted to commandSelected, OR roll it into nextCommand
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this.commandStarted(this.currentCommand);
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this._resumeAfterDelay();
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} else {
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this._testComplete();
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}
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},
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_resumeAfterDelay : function() {
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/**
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* Pause, then execute the current command.
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*/
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// Get the command delay. If a pauseInterval is set, use it once
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// and reset it. Otherwise, use the defined command-interval.
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var delay = this.pauseInterval || this.getCommandInterval();
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this.pauseInterval = undefined;
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if (this.currentCommand.isBreakpoint || delay < 0) {
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// Pause: enable the "next/continue" button
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this.pause();
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} else {
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window.setTimeout(fnBind(this.resume, this), delay);
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}
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},
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resume: function() {
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/**
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* Select the next command and continue the test.
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*/
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LOG.debug("currentTest.resume() - actually execute");
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try {
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selenium.browserbot.runScheduledPollers();
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this._executeCurrentCommand();
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this.continueTestWhenConditionIsTrue();
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} catch (e) {
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if (!this._handleCommandError(e)) {
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this._testComplete();
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} else {
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this.continueTest();
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}
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}
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},
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_testComplete : function() {
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selenium.ensureNoUnhandledPopups();
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this.testComplete();
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},
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_executeCurrentCommand : function() {
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/**
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* Execute the current command.
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*
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* @return a function which will be used to determine when
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* execution can continue, or null if we can continue immediately
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*/
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var command = this.currentCommand;
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LOG.info("Executing: |" + command.command + " | " + command.target + " | " + command.value + " |");
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var handler = this.commandFactory.getCommandHandler(command.command);
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if (handler == null) {
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throw new SeleniumError("Unknown command: '" + command.command + "'");
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}
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command.target = selenium.preprocessParameter(command.target);
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command.value = selenium.preprocessParameter(command.value);
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LOG.debug("Command found, going to execute " + command.command);
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this.result = handler.execute(selenium, command);
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this.waitForCondition = this.result.terminationCondition;
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},
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_handleCommandError : function(e) {
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if (!e.isSeleniumError) {
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LOG.exception(e);
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var msg = "Selenium failure. Please report to selenium-dev@openqa.org, with error details from the log window.";
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if (e.message) {
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msg += " The error message is: " + e.message;
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}
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return this.commandError(msg);
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} else {
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LOG.error(e.message);
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return this.commandError(e.message);
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}
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},
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continueTestWhenConditionIsTrue: function () {
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/**
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* Busy wait for waitForCondition() to become true, and then carry
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* on with test. Fail the current test if there's a timeout or an
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* exception.
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*/
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//LOG.debug("currentTest.continueTestWhenConditionIsTrue()");
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selenium.browserbot.runScheduledPollers();
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try {
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if (this.waitForCondition == null) {
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LOG.debug("null condition; let's continueTest()");
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LOG.debug("Command complete");
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this.commandComplete(this.result);
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this.continueTest();
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} else if (this.waitForCondition()) {
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LOG.debug("condition satisfied; let's continueTest()");
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this.waitForCondition = null;
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LOG.debug("Command complete");
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this.commandComplete(this.result);
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this.continueTest();
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} else {
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//LOG.debug("waitForCondition was false; keep waiting!");
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window.setTimeout(fnBind(this.continueTestWhenConditionIsTrue, this), 10);
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}
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} catch (e) {
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this.result = {};
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this.result.failed = true;
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this.result.failureMessage = extractExceptionMessage(e);
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this.commandComplete(this.result);
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this.continueTest();
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}
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},
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pause : function() {},
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nextCommand : function() {},
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commandStarted : function() {},
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commandComplete : function() {},
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commandError : function() {},
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testComplete : function() {},
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getCommandInterval : function() {
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return 0;
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}
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}
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