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// extension_apitest.js
// mini-framework for ExtensionApiTest browser tests
var chrome = chrome || {};
(function() {
chrome.test = chrome.test || {};
chrome.test.tests = chrome.test.tests || [];
var completed = false;
var currentTest = null;
var lastTest = null;
function complete() {
completed = true;
// Try to get the script to stop running immediately.
// This isn't an error, just an attempt at saying "done".
throw "completed";
}
chrome.test.fail = function(message) {
if (completed) throw "completed";
chrome.test.log("( FAILED ) " + currentTest.name);
var stack = "(no stack available)";
try {
crash.me += 0; // An intentional exception to get the stack trace.
} catch (e) {
if (typeof(e.stack) != undefined) {
stack = e.stack.split("\n");
stack = stack.slice(2); // Remove title and fail() lines.
stack = stack.join("\n");
}
}
if (!message) {
message = "FAIL (no message)";
}
message += "\n" + stack;
console.log("[FAIL] " + currentTest.name + ": " + message);
chrome.test.notifyFail(message);
complete();
};
function allTestsSucceeded() {
console.log("All tests succeeded");
if (completed) throw "completed";
chrome.test.notifyPass();
complete();
}
var pendingCallbacks = 0;
chrome.test.callbackAdded = function () {
pendingCallbacks++;
return function() {
pendingCallbacks--;
if (pendingCallbacks == 0) {
chrome.test.succeed();
}
}
};
chrome.test.runNextTest = function() {
chrome.test.assertEq(pendingCallbacks, 0);
lastTest = currentTest;
currentTest = chrome.test.tests.shift();
if (!currentTest) {
allTestsSucceeded();
return;
}
try {
chrome.test.log("( RUN ) " + currentTest.name);
currentTest.call();
} catch (e) {
var message = e.stack || "(no stack available)";
console.log("[FAIL] " + currentTest.name + ": " + message);
chrome.test.notifyFail(message);
complete();
}
};
chrome.test.succeed = function() {
console.log("[SUCCESS] " + currentTest.name);
chrome.test.log("( SUCCESS )");
// Use setTimeout here to allow previous test contexts to be
// eligible for garbage collection.
setTimeout(chrome.test.runNextTest, 0);
};
chrome.test.assertTrue = function(test, message) {
if (test !== true) {
if (typeof(test) == "string") {
if (message) {
message = test + "\n" + message;
} else {
message = test;
}
}
chrome.test.fail(message);
}
};
chrome.test.assertEq = function(expected, actual) {
if (expected != actual) {
chrome.test.fail("API Test Error in " + currentTest.name +
"\nActual: " + actual + "\nExpected: " + expected);
}
if (typeof(expected) != typeof(actual)) {
chrome.test.fail("API Test Error in " + currentTest.name +
" (type mismatch)\nActual Type: " + typeof(actual) +
"\nExpected Type:" + typeof(expected));
}
};
chrome.test.assertNoLastError = function() {
if (chrome.extension.lastError != undefined) {
chrome.test.fail("lastError.message == " +
chrome.extension.lastError.message);
}
};
function safeFunctionApply(func, arguments) {
try {
if (func) {
func.apply(null, arguments);
}
} catch (e) {
var stack = "(no stack available)";
if (typeof(e.stack) != "undefined") {
stack = e.stack.toString();
}
var msg = "Exception during execution of callback in " +
currentTest.name;
msg += "\n" + stack;
console.log("[FAIL] " + currentTest.name + ": " + msg);
chrome.test.notifyFail(msg);
complete();
}
};
// Wrapper for generating test functions, that takes care of calling
// assertNoLastError() and (optionally) succeed() for you.
chrome.test.callback = function(func, expectedError) {
if (func) {
chrome.test.assertEq(typeof(func), 'function');
}
var callbackCompleted = chrome.test.callbackAdded();
return function() {
if (expectedError == null) {
chrome.test.assertNoLastError();
} else {
chrome.test.assertEq(typeof(expectedError), 'string');
chrome.test.assertEq(expectedError, chrome.extension.lastError.message);
}
if (func) {
safeFunctionApply(func, arguments);
}
callbackCompleted();
};
};
chrome.test.listenOnce = function(event, func) {
var callbackCompleted = chrome.test.callbackAdded();
var listener = function() {
event.removeListener(listener);
safeFunctionApply(func, arguments);
callbackCompleted();
};
event.addListener(listener);
};
chrome.test.listenForever = function(event, func) {
var callbackCompleted = chrome.test.callbackAdded();
var listener = function() {
safeFunctionApply(func, arguments);
};
var done = function() {
event.removeListener(listener);
callbackCompleted();
};
event.addListener(listener);
return done;
};
chrome.test.callbackPass = function(func) {
return chrome.test.callback(func);
};
chrome.test.callbackFail = function(expectedError) {
return chrome.test.callback(null, expectedError);
};
chrome.test.runTests = function(tests) {
chrome.test.tests = tests;
chrome.test.runNextTest();
};
})();
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