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/*
* Copyright 2004 ThoughtWorks, 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.
*/
function TestLoop(commandFactory) {
this.commandFactory = commandFactory;
}
TestLoop.prototype = {
start : function() {
selenium.reset();
LOG.debug("currentTest.start()");
this.continueTest();
},
continueTest : function() {
/**
* Select the next command and continue the test.
*/
LOG.debug("currentTest.continueTest() - acquire the next command");
if (! this.aborted) {
this.currentCommand = this.nextCommand();
}
if (! this.requiresCallBack) {
this.continueTestAtCurrentCommand();
} // otherwise, just finish and let the callback invoke continueTestAtCurrentCommand()
},
continueTestAtCurrentCommand : function() {
LOG.debug("currentTest.continueTestAtCurrentCommand()");
if (this.currentCommand) {
// TODO: rename commandStarted to commandSelected, OR roll it into nextCommand
this.commandStarted(this.currentCommand);
this._resumeAfterDelay();
} else {
this._testComplete();
}
},
_resumeAfterDelay : function() {
/**
* Pause, then execute the current command.
*/
// Get the command delay. If a pauseInterval is set, use it once
// and reset it. Otherwise, use the defined command-interval.
var delay = this.pauseInterval || this.getCommandInterval();
this.pauseInterval = undefined;
if (this.currentCommand.isBreakpoint || delay < 0) {
// Pause: enable the "next/continue" button
this.pause();
} else {
window.setTimeout(this.resume.bind(this), delay);
}
},
resume: function() {
/**
* Select the next command and continue the test.
*/
LOG.debug("currentTest.resume() - actually execute");
try {
selenium.browserbot.runScheduledPollers();
this._executeCurrentCommand();
this.continueTestWhenConditionIsTrue();
} catch (e) {
this._handleCommandError(e);
this._testComplete();
return;
}
},
_testComplete : function() {
selenium.ensureNoUnhandledPopups();
this.testComplete();
},
_executeCurrentCommand : function() {
/**
* Execute the current command.
*
* @return a function which will be used to determine when
* execution can continue, or null if we can continue immediately
*/
var command = this.currentCommand;
LOG.info("Executing: |" + command.command + " | " + command.target + " | " + command.value + " |");
var handler = this.commandFactory.getCommandHandler(command.command);
if (handler == null) {
throw new SeleniumError("Unknown command: '" + command.command + "'");
}
command.target = selenium.preprocessParameter(command.target);
command.value = selenium.preprocessParameter(command.value);
LOG.debug("Command found, going to execute " + command.command);
var result = handler.execute(selenium, command);
LOG.debug("Command complete");
this.commandComplete(result);
this.waitForCondition = result.terminationCondition;
},
_handleCommandError : function(e) {
if (!e.isSeleniumError) {
LOG.exception(e);
var msg = "Selenium failure. Please report to selenium-dev@openqa.org, with error details from the log window.";
if (e.message) {
msg += " The error message is: " + e.message;
}
this.commandError(msg);
} else {
LOG.error(e.message);
this.commandError(e.message);
}
},
continueTestWhenConditionIsTrue: function () {
/**
* Busy wait for waitForCondition() to become true, and then carry
* on with test. Fail the current test if there's a timeout or an
* exception.
*/
LOG.debug("currentTest.continueTestWhenConditionIsTrue()");
selenium.browserbot.runScheduledPollers();
try {
if (this.waitForCondition == null || this.waitForCondition()) {
LOG.debug("condition satisfied; let's continueTest()");
this.waitForCondition = null;
this.continueTest();
} else {
LOG.debug("waitForCondition was false; keep waiting!");
window.setTimeout(this.continueTestWhenConditionIsTrue.bind(this), 100);
}
} catch (e) {
var lastResult = {};
lastResult.failed = true;
lastResult.failureMessage = e.message;
this.commandComplete(lastResult);
this.testComplete();
}
},
pause : function() {},
nextCommand : function() {},
commandStarted : function() {},
commandComplete : function() {},
commandError : function() {},
testComplete : function() {},
getCommandInterval : function() {
return 0;
}
}
function decorateFunctionWithTimeout(f, timeout) {
if (f == null) {
return null;
}
if (isNaN(timeout)) {
throw new SeleniumError("Timeout is not a number: " + timeout);
}
var now = new Date().getTime();
var timeoutTime = now + timeout;
return function() {
if (new Date().getTime() > timeoutTime) {
throw new SeleniumError("Timed out after " + timeout + "ms");
}
return f();
};
}
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