Issue 6717 - Part 2: run qunit in headless firefox

test/firefox.js

Index: test/firefox.js
diff --git a/test/firefox.js b/test/firefox.js
new file mode 100644
index 0000000000000000000000000000000000000000..51be0c946f89273d94e3efcf9523b5b2fdf0351f
--- /dev/null
+++ b/test/firefox.js
@@ -0,0 +1,121 @@
+/*
+ * 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";
+
+const {ensureFirefox} = require("../adblockpluscore/test/runners/" +
+                                "firefox_download");
+const webdriver = require("selenium-webdriver");
+const {By, until} = webdriver;
+
+const FIREFOX_VERSION = "57.0";
+
+const Command = require("selenium-webdriver/lib/command").Command;

[hub, 2018/08/23 12:53:59]

you could use destructuring here too.

[tlucas, 2018/08/23 13:42:14]

Could you please explain which lines / how exactly?

[hub, 2018/08/23 14:46:33]

change

const Command = require("selenium-webdriver/lib/command").Command;

to

const {Command} = require("selenium-webdriver/lib/command");

`npm run lint` should have caught this.

[tlucas, 2018/08/23 15:32:05]

Thank you!

And no, "npm run lint" did not complain about this.

Done.

+const path = require("path");
+const firefox = require("selenium-webdriver/firefox");
+
+exports.runFirefox = function(test)
+{
+  // https://stackoverflow.com/a/45045036
+  function installWebExt(driver, extension)
+  {
+    let cmd = new Command("moz-install-web-ext")
+      .setParameter("path", path.resolve(extension))
+      .setParameter("temporary", true);
+
+    driver.getExecutor()
+      .defineCommand(cmd.getName(), "POST",
+                     "/session/:sessionId/moz/addon/install");
+
+    return driver.schedule(cmd, "installWebExt(" + extension + ")");

[hub, 2018/08/23 12:54:00]

I'd rather use template a string here:
`installWebExt(${extension})`

[tlucas, 2018/08/23 13:42:15]

Done.

+  }
+
+  ensureFirefox(FIREFOX_VERSION).then(firefoxPath =>
+  {
+    let binary = new firefox.Binary(firefoxPath);
+
+    binary.addArguments("-headless");
+
+    let options = new firefox.Options()
+          .setBinary(binary);
+
+    let driver = new webdriver.Builder()
+            .forBrowser("firefox")
+            .setFirefoxOptions(options)
+            .build();
+
+    installWebExt(driver, "./devenv.gecko");
+
+    driver.wait(() =>
+      // Wait for the firstrun-page to be loaded
+      driver.getAllWindowHandles().then(handles =>
+      {
+        if (handles.length > 1)
+        {
+          driver.switchTo().window(handles[1]);
+          return true;
+        }
+        return false;
+      })
+    ).then(() =>
+    {
+      // Navigate to the qunit index
+      driver.executeScript("location.href = \"qunit/index.html\";");

[hub, 2018/08/23 12:54:00]

you could go `() => driver.executeScript(...)` (dropping the curly braces)

[tlucas, 2018/08/23 13:42:14]

Done.

+    }).then(() =>
+    {
+      // Wait for qunit-results to be present
+      driver.wait(until.elementLocated(By.id("qunit-testresult")));

[hub, 2018/08/23 12:53:59]

here too.

[tlucas, 2018/08/23 13:42:15]

Done.

+    }).then(() =>
+    {
+      // Wait for tests to finish
+      driver.wait(() =>

[hub, 2018/08/23 12:53:59]

and here

[tlucas, 2018/08/23 13:42:14]

Done.

+        driver.findElement(By.id("qunit-testresult"))
+          .getAttribute("innerHTML").then(data =>
+             data.search("Tests completed") >= 0));
+    }).then(() =>
+    {
+      // Find passed tests
+      driver.findElements(By.css("#qunit-tests .pass .test-name"))
+        .then(elements =>
+        {
+          for (let elem of elements)
+          {
+            elem.getAttribute("innerHTML").then(data =>
+            {
+              test.ok(true, data);
+            });
+          }
+        });
+      // Find failed tests
+      driver.findElements(By.css("#qunit-tests .fail .test-name"))
+        .then(elements =>
+        {
+          for (let elem of elements)
+          {
+            elem.getAttribute("innerHTML").then(data =>
+            {
+              test.ok(false, "Undefined error in " + data);

[hub, 2018/08/23 12:54:00]

And a template string here too.

[tlucas, 2018/08/23 13:42:15]

Done.

+            });
+          }
+        });
+    }).then(() =>
+    {
+      driver.quit();
+      test.done();
+    });
+  });
+};