Issue 6820 - Move tests to mocha

test/browser/snippets.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 "use strict";
 
+/* global assert */
+
 const library = require("../../lib/content/snippets.js");
 
-// We need this stub for the injector.
-window.browser =
+describe("Snippets", () =>
 {
-  runtime:
+  before(() =>
   {
-    getURL: () => ""
+    // We need this stub for the injector.
+    window.browser =
+    {
+      runtime:
+      {
+        getURL: () => ""
+      }
+    };
+  });
+
+  let testDocument = null;
+
+  beforeEach(() =>
+  {
+    let iframe = document.createElement("iframe");
+    document.body.appendChild(iframe);
+    testDocument = iframe.contentDocument;
+  });
+
+  afterEach(() =>
+  {
+    let iframe = testDocument.defaultView.frameElement;
+    iframe.parentNode.removeChild(iframe);
+    testDocument = null;
+  });
+
+  function timeout(delay)
+  {
+    return new Promise((resolve, reject) =>
+    {
+      window.setTimeout(resolve, delay);
+    });
   }
-};
 
-let testDocument = null;
+  async function runSnippet(snippetName, ...args)
+  {
+    let snippet = library[snippetName];
 
-exports.setUp = function(callback)
-{
-  let iframe = document.createElement("iframe");
-  document.body.appendChild(iframe);
-  testDocument = iframe.contentDocument;
+    assert.ok(snippet);
 
-  callback();
-};
-
-exports.tearDown = function(callback)
-{
-  let iframe = testDocument.defaultView.frameElement;
-  iframe.parentNode.removeChild(iframe);
-  testDocument = null;
-
-  callback();
-};
-
-function timeout(delay)
-{
-  return new Promise((resolve, reject) =>
-  {
-    window.setTimeout(resolve, delay);
-  });
-}
-
-async function runSnippet(test, snippetName, ...args)
-{
-  let snippet = library[snippetName];
-
-  test.ok(snippet);
-
-  snippet(...args);
-  await timeout(100);
-}
-
-exports.testAbortPropertyReadSnippet = async function(test)
-{
-  window.abpTest = "foo";
+    snippet(...args);
+    await timeout(100);
+  }
 
   async function testProperty(property, result = true)
   {
     let properties = property.split(".");
-    test.ok(properties.length >= 1);
+    assert.ok(properties.length >= 1);
 
     let exceptionCaught = false;
     let value = 1;
     try
     {
       let obj = window;
       while (properties.length > 1)
         obj = obj[properties.shift()];
       value = obj[properties.shift()];
     }
     catch (e)
     {
       if (properties.length == 0)
         exceptionCaught = true;
     }
-    test.equal(exceptionCaught, result, `The property "${property}" didn't trigger and exception.`);
-    test.equal(value, result ? 1 : undefined, `The value for "${property}" shouldn't have been read.`);
+    assert.equal(exceptionCaught, result, `The property "${property}" didn't trigger and exception.`);
+    assert.equal(value, result ? 1 : undefined, `The value for "${property}" shouldn't have been read.`);
   }
 
-  await runSnippet(test, "abort-on-property-read", "abpTest");
-  await testProperty("abpTest");
+  it("Test abort property read", async() =>
+  {
+    window.abpTest = "foo";
 
-  window.abpTest2 = {prop1: "foo"};
+    await runSnippet("abort-on-property-read", "abpTest");
+    await testProperty("abpTest");
 
-  await runSnippet(test, "abort-on-property-read", "abpTest2.prop1");
-  await testProperty("abpTest2.prop1");
+    window.abpTest2 = {prop1: "foo"};
 
-  // Test that we try to catch a property that don't exist yet.
-  await runSnippet(test, "abort-on-property-read", "abpTest3.prop1");
-  window.abpTest3 = {prop1: "foo"};
-  await testProperty("abpTest3.prop1");
+    await runSnippet("abort-on-property-read", "abpTest2.prop1");
+    await testProperty("abpTest2.prop1");
 
-  // Test that other properties don't trigger.
-  await testProperty("abpTest3.prop2", false);
+    // Test that we try to catch a property that don't exist yet.
+    await runSnippet("abort-on-property-read", "abpTest3.prop1");
+    window.abpTest3 = {prop1: "foo"};
+    await testProperty("abpTest3.prop1");
 
-  // Test overwriting the object with another object
-  window.foo = {bar: {}};
-  await runSnippet(test, "abort-on-property-read", "foo.bar.lambda");
-  await testProperty("foo.bar.lambda");
-  window.foo.bar = {};
-  await testProperty("foo.bar.lambda");
+    // Test that other properties don't trigger.
+    await testProperty("abpTest3.prop2", false);
 
-  // Test if we start with a non-object
-  window.foo2 = 5;
-  await runSnippet(test, "abort-on-property-read", "foo2.bar2.lambda");
-  await testProperty("foo2.bar2.lambda");
-  window.foo2 = {};
-  await testProperty("foo2.bar2.lambda");
+    // Test overwriting the object with another object
+    window.foo = {bar: {}};
+    await runSnippet("abort-on-property-read", "foo.bar.lambda");
+    await testProperty("foo.bar.lambda");
+    window.foo.bar = {};
+    await testProperty("foo.bar.lambda");
 
-  test.done();
-};
-
+    // Test if we start with a non-object
+    window.foo2 = 5;
+    await runSnippet("abort-on-property-read", "foo2.bar2.lambda");
+    await testProperty("foo2.bar2.lambda");
+    window.foo2 = {};
+    await testProperty("foo2.bar2.lambda");
+  });
+});