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-/* Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/publicdomain/zero/1.0/ */
-
-/*
- * Infrastructure common to the test frameworks located in subfolders.
- *
- * A copy of this file is installed in each of the framework subfolders, this
- * means it becomes a sibling of the test files in the final layout. This is
- * determined by how manifest "support-files" installation works.
- *
- * Unless you are adding new features to the framework, you shouldn't have to
- * modify this file. Use "head_common.js" or the "head.js" file of each
- * framework for shared code.
- */
-
-"use strict";
-
-/*
- * --------------------
- * FRAMEWORK OVERVIEW
- * --------------------
- *
- * This framework is designed in such a way that test can be written in similar
- * ways in the xpcshell, mochitest-chrome, and mochitest-browser frameworks,
- * both when tests are running in the parent process or in a content process.
- *
- * There are some basic self-documenting assertion and output functions:
- *
- * Assert.ok(actualValue);
- * Assert.is(actualValue, expectedValue);
- * Output.print(string);
- *
- * Test cases and initialization functions are declared in shared head files
- * ("head_common.js" and "head.js") as well as individual test files. When
- * tests run in an Elecrolysis (e10s) environment, they are executed in both
- * processes at first. Normally, at this point only the registration of test
- * cases happen. When everything has finished loading, tests are started and
- * appropriately synchronized between processes.
- *
- * Tests can be declared using the add_task syntax:
- *
- * add_task(function* test_something () { ... });
- * This adds a test either in the parent process or child process:
- * - Parent: xpcshell, mochitest-chrome --disable-e10s, mochitest-browser
- * - Child: mochitest-chrome with e10s
- * In the future, these might run in the child process for "xpcshell".
- *
- * add_task_in_parent_process(function* test_something () { ... });
- * This test runs in the parent process, but the child process will wait for
- * its completion before continuing with the next task. This wait currently
- * happens only in mochitest-chrome with e10s, in other frameworks that run
- * only in the parent process this is the same as a normal add_task.
- *
- * add_task_in_child_process(function* test_something () { ... });
- * This test runs only in the child process. This means that the test is not
- * run unless this is an e10s test, currently mochitest-chrome with e10s.
- *
- * add_task_in_both_processes(function* test_something () { ... });
- * Useful for initialization that must be done both in the parent and the
- * child, like setting preferences.
- *
- * add_termination_task(function* () { ... });
- * Registers a new asynchronous termination task. This is executed after all
- * test cases in the file finished, and always in the same process where the
- * termination task is registered.
- */
-XPCOMUtils.defineLazyModuleGetter(this, "Promise",
- "resource://gre/modules/Promise.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Task",
- "resource://gre/modules/Task.jsm");
-
-var gTerminationTasks = [];
-
-/**
- * None of the testing frameworks support asynchronous termination functions, so
- * this task must be registered later, after the other "add_task" calls.
- *
- * Even xpcshell doesn't support calling "add_task" in the "tail.js" file,
- * because it registers the task but does not wait for its termination,
- * potentially leading to intermittent failures in subsequent tests.
- */
-function* terminationTaskFn() {
- for (let taskFn of gTerminationTasks) {
- try {
- yield Task.spawn(taskFn);
- } catch (ex) {
- Output.print(ex);
- Assert.ok(false);
- }
- }
-}
-
-function add_termination_task(taskFn) {
- gTerminationTasks.push(taskFn);
-}
-
-/**
- * Returns a unique identifier used for synchronizing the given test task
- * between the parent and child processes.
- */
-function getTaskId(stackFrame) {
- return stackFrame.filename + ":" + stackFrame.lineNumber;
-}
-
-// This is a shared helper for mochitest-chrome and mochitest-browser.
-var _mochitestAssert = {
- ok: function (actual) {
- let stack = Components.stack.caller;
- ok(actual, "[" + stack.name + " : " + stack.lineNumber + "] " + actual +
- " == true");
- },
- equal: function (actual, expected) {
- let stack = Components.stack.caller;
- is(actual, expected, "[" + stack.name + " : " + stack.lineNumber + "] " +
- actual + " == " + expected);
- },
-};
-
-// Reminder: unless you are adding new features to the framework, you shouldn't
-// have to modify this file. Use "head_common.js" or "head.js" for shared code.