From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 02:47:55 +0200
Subject: Adding upstream version 124.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 dom/filesystem/tests/filesystem_commons.js     | 180 ++++++++++++++
 dom/filesystem/tests/mochitest.toml            |  16 ++
 dom/filesystem/tests/moz.build                 |   7 +
 dom/filesystem/tests/script_fileList.js        | 176 ++++++++++++++
 dom/filesystem/tests/script_promptHandler.js   |  18 ++
 dom/filesystem/tests/test_basic.html           | 118 ++++++++++
 dom/filesystem/tests/test_bug1319088.html      |  65 ++++++
 dom/filesystem/tests/test_webkitdirectory.html | 309 +++++++++++++++++++++++++
 dom/filesystem/tests/test_worker_basic.html    |  73 ++++++
 dom/filesystem/tests/worker_basic.js           |  50 ++++
 10 files changed, 1012 insertions(+)
 create mode 100644 dom/filesystem/tests/filesystem_commons.js
 create mode 100644 dom/filesystem/tests/mochitest.toml
 create mode 100644 dom/filesystem/tests/moz.build
 create mode 100644 dom/filesystem/tests/script_fileList.js
 create mode 100644 dom/filesystem/tests/script_promptHandler.js
 create mode 100644 dom/filesystem/tests/test_basic.html
 create mode 100644 dom/filesystem/tests/test_bug1319088.html
 create mode 100644 dom/filesystem/tests/test_webkitdirectory.html
 create mode 100644 dom/filesystem/tests/test_worker_basic.html
 create mode 100644 dom/filesystem/tests/worker_basic.js

(limited to 'dom/filesystem/tests')

diff --git a/dom/filesystem/tests/filesystem_commons.js b/dom/filesystem/tests/filesystem_commons.js
new file mode 100644
index 0000000000..af0ce36339
--- /dev/null
+++ b/dom/filesystem/tests/filesystem_commons.js
@@ -0,0 +1,180 @@
+function createPath(parentDir, dirOrFile) {
+  return parentDir.path + (parentDir.path == "/" ? "" : "/") + dirOrFile.name;
+}
+
+function createRelativePath(parentDir, dirOrFile) {
+  let path = createPath(parentDir, dirOrFile);
+  is(path[0], "/", "The full path should start with '/'");
+  return path.substring(1);
+}
+
+function setup_tests(aNext) {
+  SimpleTest.requestLongerTimeout(2);
+  SpecialPowers.pushPrefEnv(
+    {
+      set: [
+        ["dom.filesystem.pathcheck.disabled", true],
+        ["dom.webkitBlink.dirPicker.enabled", true],
+      ],
+    },
+    aNext
+  );
+}
+
+function test_basic(aDirectory, aNext) {
+  ok(aDirectory, "Directory exists.");
+  ok(aDirectory instanceof Directory, "We have a directory.");
+  is(aDirectory.path, "/" + aDirectory.name, "directory.path must be '/'+name");
+  aNext();
+}
+
+function test_getFilesAndDirectories(aDirectory, aRecursive, aNext) {
+  function checkSubDir(dir) {
+    return dir.getFilesAndDirectories().then(function (data) {
+      for (var i = 0; i < data.length; ++i) {
+        ok(
+          data[i] instanceof File || data[i] instanceof Directory,
+          "Just Files or Directories"
+        );
+        if (data[i] instanceof Directory) {
+          isnot(
+            data[i].name,
+            "/",
+            "Subdirectory should be called with the leafname"
+          );
+          isnot(
+            data[i].path,
+            "/",
+            "Subdirectory path should be called with the leafname"
+          );
+          isnot(
+            data[i].path,
+            dir.path,
+            "Subdirectory path should contain the parent path."
+          );
+          is(
+            data[i].path,
+            createPath(dir, data[i]),
+            "Subdirectory path should be called parentdir.path + '/' + leafname: " +
+              data[i].path
+          );
+        }
+
+        if (data[i] instanceof File) {
+          is(
+            data[i].webkitRelativePath,
+            createRelativePath(dir, data[i]),
+            "File.webkitRelativePath should be called: parentdir.path + '/' + file.name: " +
+              data[i].webkitRelativePath
+          );
+          ok(
+            !data[i].webkitRelativePath.endsWith("symlink.txt"),
+            "We should never see a path ending with symlink.txt, our symlink sentinel."
+          );
+        }
+      }
+    });
+  }
+
+  aDirectory
+    .getFilesAndDirectories()
+    .then(
+      function (data) {
+        ok(data.length, "We should have some data.");
+        var promises = [];
+        for (var i = 0; i < data.length; ++i) {
+          ok(
+            data[i] instanceof File || data[i] instanceof Directory,
+            "Just Files or Directories: " + data[i].name
+          );
+          if (data[i] instanceof Directory) {
+            isnot(
+              data[i].name,
+              "/",
+              "Subdirectory should be called with the leafname"
+            );
+            is(
+              data[i].path,
+              createPath(aDirectory, data[i]),
+              "Subdirectory path should be called parentdir.path + '/' + leafname: " +
+                data[i].path
+            );
+            if (aRecursive) {
+              promises.push(checkSubDir(data[i]));
+            }
+          }
+
+          if (data[i] instanceof File) {
+            is(
+              data[i].webkitRelativePath,
+              createRelativePath(aDirectory, data[i]),
+              "File.webkitRelativePath should be called file.name: " +
+                data[i].webkitRelativePath
+            );
+          }
+        }
+
+        return Promise.all(promises);
+      },
+      function () {
+        ok(false, "Something when wrong");
+      }
+    )
+    .then(aNext);
+}
+
+function test_getFiles(aDirectory, aRecursive, aNext) {
+  aDirectory
+    .getFiles(aRecursive)
+    .then(
+      function (data) {
+        for (var i = 0; i < data.length; ++i) {
+          ok(data[i] instanceof File, "File: " + data[i].name);
+          is(aDirectory.path[0], "/", "Directory path must start with '/'");
+          ok(
+            data[i].webkitRelativePath.indexOf(aDirectory.path.substring(1)) ==
+              0 &&
+              data[i].webkitRelativePath.indexOf("/" + data[i].name) +
+                ("/" + data[i].name).length ==
+                data[i].webkitRelativePath.length,
+            "File.webkitRelativePath should be called dir.path + '/' + file.name: " +
+              data[i].webkitRelativePath
+          );
+        }
+      },
+      function () {
+        ok(false, "Something when wrong");
+      }
+    )
+    .then(aNext);
+}
+
+function test_getFiles_recursiveComparison(aDirectory, aNext) {
+  aDirectory
+    .getFiles(true)
+    .then(function (data) {
+      is(data.length, 2, "Only 2 files for this test.");
+      ok(
+        data[0].name == "foo.txt" || data[0].name == "bar.txt",
+        "First filename matches"
+      );
+      ok(
+        data[1].name == "foo.txt" || data[1].name == "bar.txt",
+        "Second filename matches"
+      );
+    })
+    .then(function () {
+      return aDirectory.getFiles(false);
+    })
+    .then(function (data) {
+      is(data.length, 1, "Only 1 file for this test.");
+      ok(
+        data[0].name == "foo.txt" || data[0].name == "bar.txt",
+        "First filename matches"
+      );
+    })
+    .catch(function () {
+      ok(false, "Something when wrong");
+    })
+    .then(aNext);
+}
diff --git a/dom/filesystem/tests/mochitest.toml b/dom/filesystem/tests/mochitest.toml
new file mode 100644
index 0000000000..869fe2d37f
--- /dev/null
+++ b/dom/filesystem/tests/mochitest.toml
@@ -0,0 +1,16 @@
+[DEFAULT]
+support-files = [
+  "filesystem_commons.js",
+  "script_fileList.js",
+  "worker_basic.js",
+]
+
+["test_basic.html"]
+
+["test_bug1319088.html"]
+
+["test_webkitdirectory.html"]
+skip-if = ["os == 'android'"] # Bug 1674428
+support-files = ["script_promptHandler.js"]
+
+["test_worker_basic.html"]
diff --git a/dom/filesystem/tests/moz.build b/dom/filesystem/tests/moz.build
new file mode 100644
index 0000000000..2f41008128
--- /dev/null
+++ b/dom/filesystem/tests/moz.build
@@ -0,0 +1,7 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+MOCHITEST_MANIFESTS += ["mochitest.toml"]
diff --git a/dom/filesystem/tests/script_fileList.js b/dom/filesystem/tests/script_fileList.js
new file mode 100644
index 0000000000..47438aa7b3
--- /dev/null
+++ b/dom/filesystem/tests/script_fileList.js
@@ -0,0 +1,176 @@
+/* eslint-env mozilla/chrome-script */
+// eslint-disable-next-line mozilla/reject-importGlobalProperties
+Cu.importGlobalProperties(["File"]);
+function createProfDFile() {
+  return Services.dirsvc
+    .QueryInterface(Ci.nsIProperties)
+    .get("ProfD", Ci.nsIFile);
+}
+
+const { AppConstants } = ChromeUtils.importESModule(
+  "resource://gre/modules/AppConstants.sys.mjs"
+);
+
+// Creates a parametric arity directory hierarchy as a function of depth.
+// Each directory contains one leaf file, and subdirectories of depth [1, depth).
+// e.g. for depth 3:
+//
+// subdir3
+// - file.txt
+// - subdir2
+//   - file.txt
+//   - subdir1
+//     - file.txt
+// - subdir1
+//   - file.txt
+//
+// Returns the parent directory of the subtree.
+function createTreeFile(depth, parent) {
+  if (!parent) {
+    parent = Services.dirsvc
+      .QueryInterface(Ci.nsIProperties)
+      .get("TmpD", Ci.nsIFile);
+    parent.append("dir-tree-test");
+    parent.createUnique(Ci.nsIFile.DIRECTORY_TYPE, 0o700);
+  }
+
+  var nextFile = parent.clone();
+  if (depth == 0) {
+    nextFile.append("file.txt");
+    nextFile.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0o600);
+
+    // It's not possible to create symlinks on windows by default or on our
+    // Android platforms, so we can't create the symlink file there.  Our
+    // callers that care are aware of this and also check AppConstants.
+    if (
+      AppConstants.platform !== "win" &&
+      AppConstants.platform !== "android"
+    ) {
+      var linkFile = parent.clone();
+      linkFile.append("symlink.txt");
+      createSymLink(nextFile.path, linkFile.path);
+    }
+  } else {
+    nextFile.append("subdir" + depth);
+    nextFile.createUnique(Ci.nsIFile.DIRECTORY_TYPE, 0o700);
+    // Decrement the maximal depth by one for each level of nesting.
+    for (var i = 0; i < depth; i++) {
+      createTreeFile(i, nextFile);
+    }
+  }
+
+  return parent;
+}
+
+function createRootFile() {
+  var testFile = createProfDFile();
+
+  // Let's go back to the root of the FileSystem
+  while (true) {
+    var parent = testFile.parent;
+    if (!parent) {
+      break;
+    }
+
+    testFile = parent;
+  }
+
+  return testFile;
+}
+
+var process;
+function createSymLink(target, linkName) {
+  if (!process) {
+    var ln = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+    ln.initWithPath("/bin/ln");
+
+    process = Cc["@mozilla.org/process/util;1"].createInstance(Ci.nsIProcess);
+    process.init(ln);
+  }
+
+  const args = ["-s", target, linkName];
+  process.run(true, args, args.length);
+  Assert.equal(process.exitValue, 0);
+}
+
+function createTestFile() {
+  var tmpFile = Services.dirsvc
+    .QueryInterface(Ci.nsIProperties)
+    .get("TmpD", Ci.nsIFile);
+  tmpFile.append("dir-test");
+  tmpFile.createUnique(Ci.nsIFile.DIRECTORY_TYPE, 0o700);
+
+  var file1 = tmpFile.clone();
+  file1.append("foo.txt");
+  file1.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0o600);
+
+  var dir = tmpFile.clone();
+  dir.append("subdir");
+  dir.create(Ci.nsIFile.DIRECTORY_TYPE, 0o700);
+
+  var file2 = dir.clone();
+  file2.append("bar.txt");
+  file2.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0o600);
+
+  // It's not possible to create symlinks on windows by default or on our
+  // Android platforms, so we can't create the symlink file there.  Our
+  // callers that care are aware of this and also check AppConstants.
+  if (AppConstants.platform !== "win" && AppConstants.platform !== "android") {
+    var linkFile = dir.clone();
+    linkFile.append("symlink.txt");
+    createSymLink(file1.path, linkFile.path);
+  }
+
+  return tmpFile;
+}
+
+addMessageListener("dir.open", function (e) {
+  var testFile;
+
+  switch (e.path) {
+    case "ProfD":
+      // Note that files in the profile directory are not guaranteed to persist-
+      // see bug 1284742.
+      testFile = createProfDFile();
+      break;
+
+    case "root":
+      testFile = createRootFile();
+      break;
+
+    case "test":
+      testFile = createTestFile();
+      break;
+
+    case "tree":
+      testFile = createTreeFile(3);
+      break;
+  }
+
+  sendAsyncMessage("dir.opened", {
+    dir: testFile.path,
+    name: testFile.leafName,
+  });
+});
+
+addMessageListener("file.open", function (e) {
+  var testFile = Services.dirsvc
+    .QueryInterface(Ci.nsIProperties)
+    .get("ProfD", Ci.nsIFile);
+  testFile.append("prefs.js");
+
+  File.createFromNsIFile(testFile).then(function (file) {
+    sendAsyncMessage("file.opened", { file });
+  });
+});
+
+addMessageListener("symlink.open", function (e) {
+  let testDir = createTestFile();
+  let testFile = testDir.clone();
+  testFile.append("subdir");
+  testFile.append("symlink.txt");
+
+  File.createFromNsIFile(testFile).then(function (file) {
+    sendAsyncMessage("symlink.opened", { dir: testDir.path, file });
+  });
+});
diff --git a/dom/filesystem/tests/script_promptHandler.js b/dom/filesystem/tests/script_promptHandler.js
new file mode 100644
index 0000000000..ed3bda7404
--- /dev/null
+++ b/dom/filesystem/tests/script_promptHandler.js
@@ -0,0 +1,18 @@
+/* eslint-env mozilla/chrome-script */
+
+let dialogObserverTopic = "common-dialog-loaded";
+
+function dialogObserver(subj, topic, data) {
+  subj.document.querySelector("dialog").acceptDialog();
+  sendAsyncMessage("promptAccepted");
+}
+
+addMessageListener("init", message => {
+  Services.obs.addObserver(dialogObserver, dialogObserverTopic);
+  sendAsyncMessage("initDone");
+});
+
+addMessageListener("cleanup", message => {
+  Services.obs.removeObserver(dialogObserver, dialogObserverTopic);
+  sendAsyncMessage("cleanupDone");
+});
diff --git a/dom/filesystem/tests/test_basic.html b/dom/filesystem/tests/test_basic.html
new file mode 100644
index 0000000000..b4daea79c9
--- /dev/null
+++ b/dom/filesystem/tests/test_basic.html
@@ -0,0 +1,118 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for Directory API</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="filesystem_commons.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+
+<body>
+<script type="application/javascript">
+
+var directory;
+var fileList;
+
+function create_fileList(aPath) {
+  fileList = document.createElement("input");
+  fileList.setAttribute("type", "file");
+  document.body.appendChild(fileList);
+
+  var url = SimpleTest.getTestFileURL("script_fileList.js");
+  var script = SpecialPowers.loadChromeScript(url);
+
+  function onOpened(message) {
+    SpecialPowers.wrap(fileList).mozSetDirectory(message.dir);
+    fileList.setAttribute("data-name", message.name);
+
+    SpecialPowers.wrap(fileList).getFilesAndDirectories().then(function(array) {
+      array =  SpecialPowers.unwrap(array);
+      is(array.length, 1, "We want just 1 directory.");
+      ok(array[0] instanceof Directory, "We want just 1 directory.");
+
+      directory = array[0];
+      script.destroy();
+      next();
+    });
+  }
+
+  script.addMessageListener("dir.opened", onOpened);
+  script.sendAsyncMessage("dir.open", { path: aPath });
+}
+
+function test_simpleFilePicker(aPath) {
+  var url = SimpleTest.getTestFileURL("script_fileList.js");
+  var script = SpecialPowers.loadChromeScript(url);
+
+  function onOpened(message) {
+    SpecialPowers.wrap(fileList).mozSetFileArray([message.file]);
+
+    is(fileList.files.length, 1, "we want 1 element");
+    ok(fileList.files[0] instanceof File, "we want 1 file");
+    ok("webkitRelativePath" in fileList.files[0], "we have webkitRelativePath attribute");
+    is(fileList.files[0].webkitRelativePath, "", "No webkit relative path for normal filePicker");
+
+    script.destroy();
+    next();
+  }
+
+  script.addMessageListener("file.opened", onOpened);
+  script.sendAsyncMessage("file.open");
+}
+
+function test_duplicateGetFilesAndDirectories() {
+  var url = SimpleTest.getTestFileURL("script_fileList.js");
+  var script = SpecialPowers.loadChromeScript(url);
+
+  function onOpened(message) {
+    SpecialPowers.wrap(fileList).mozSetDirectory(message.dir);
+
+    var p1 = SpecialPowers.wrap(fileList).getFilesAndDirectories();
+    var p2 = SpecialPowers.wrap(fileList).getFilesAndDirectories();
+
+    isnot(p1, p2, "We create 2 different promises");
+
+    script.destroy();
+    next();
+  }
+
+  script.addMessageListener("dir.opened", onOpened);
+  script.sendAsyncMessage("dir.open", { path: "test" });
+}
+
+var tests = [
+  function() { setup_tests(next); },
+
+  function() { create_fileList("tree"); },
+  function() { test_basic(directory, next); },
+  function() { test_getFilesAndDirectories(directory, true, next); },
+  function() { test_getFiles(directory, false, next); },
+  function() { test_getFiles(directory, true, next); },
+
+  function() { create_fileList("test"); },
+  function() { test_getFiles_recursiveComparison(directory, next); },
+
+  function() { create_fileList("root"); },
+  function() { test_basic(directory, next); },
+  function() { test_getFilesAndDirectories(directory, false, next); },
+  function() { test_getFiles(directory, false, next); },
+
+  test_duplicateGetFilesAndDirectories,
+  test_simpleFilePicker,
+];
+
+function next() {
+  if (!tests.length) {
+    SimpleTest.finish();
+    return;
+  }
+
+  var test = tests.shift();
+  test();
+}
+
+SimpleTest.waitForExplicitFinish();
+next();
+</script>
+</body>
+</html>
diff --git a/dom/filesystem/tests/test_bug1319088.html b/dom/filesystem/tests/test_bug1319088.html
new file mode 100644
index 0000000000..98e0ad46f0
--- /dev/null
+++ b/dom/filesystem/tests/test_bug1319088.html
@@ -0,0 +1,65 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for bug 1319088</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+
+<body>
+<input id="input" type="file"></input>
+
+<script type="application/javascript">
+
+function testSetup() {
+  SpecialPowers.pushPrefEnv({"set": [["dom.webkitBlink.dirPicker.enabled", true]]}, next);
+}
+
+function populateInputFile() {
+  var url = SimpleTest.getTestFileURL("script_fileList.js");
+  var script = SpecialPowers.loadChromeScript(url);
+
+  function onOpened(message) {
+    var input = document.getElementById("input");
+    SpecialPowers.wrap(input).mozSetFileArray([message.file]);
+
+    script.destroy();
+    next();
+  }
+
+  script.addMessageListener("file.opened", onOpened);
+  script.sendAsyncMessage("file.open");
+}
+
+function checkBug() {
+  var input = document.getElementById("input");
+  is(input.files[0].webkitRelativePath, "", "No relative path!");
+
+  let form = document.createElement("form");
+  form.appendChild(input);
+
+  is(input.files[0].webkitRelativePath, "", "No relative path!");
+  SimpleTest.finish();
+}
+
+var tests = [
+  testSetup,
+  populateInputFile,
+  checkBug,
+];
+
+function next() {
+  if (!tests.length) {
+    SimpleTest.finish();
+    return;
+  }
+
+  var test = tests.shift();
+  test();
+}
+
+SimpleTest.waitForExplicitFinish();
+next();
+</script>
+</body>
+</html>
diff --git a/dom/filesystem/tests/test_webkitdirectory.html b/dom/filesystem/tests/test_webkitdirectory.html
new file mode 100644
index 0000000000..50080ad7ba
--- /dev/null
+++ b/dom/filesystem/tests/test_webkitdirectory.html
@@ -0,0 +1,309 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for webkitdirectory and webkitRelativePath</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+
+<body>
+<input id="inputFileWebkitDirectory" type="file" webkitdirectory></input>
+<input id="inputFileWebkitFile" type="file"></input>
+<input id="inputFileDirectoryChange" type="file" webkitdirectory></input>
+
+<script type="application/javascript">
+
+const { AppConstants } = SpecialPowers.ChromeUtils.importESModule(
+  "resource://gre/modules/AppConstants.sys.mjs"
+);
+
+let promptHandler;
+
+function waitForEvent(element, eventName) {
+  return new Promise(function(resolve) {
+    element.addEventListener(eventName, e => resolve(e.detail), { once: true });
+  });
+}
+
+function waitForPromptHandled() {
+  return new Promise(resolve => promptHandler.addMessageListener("promptAccepted", resolve));
+}
+
+// Populate the given input type=file `aInputFile`'s `files` attribute by:
+// - loading `script_fileList.js` in the parent process
+// - telling it to generate the "test" template directory pattern which will
+//   create "foo.txt", "subdir/bar.txt", and if symlinks are available on the
+//   platform, "symlink.txt" which will be a symlink to "foo.txt".  (Note that
+//   we explicitly expect the symlink to be filtered out if generated, and
+//   during the enhancement of the test we verified the file was created on
+//   linux by running the test before fixing the GetFilesHelper logic to filter
+//   the symlink out and verifying the subsequent `test_fileList` check failed.)
+// - Triggering the mock file picker with the base directory of the "test"
+//   template directory.
+//
+// It's expected that `test_fileList` will be used after this step completes in
+// order to validate the results.
+function populateInputFile(aInputFile) {
+  var url = SimpleTest.getTestFileURL("script_fileList.js");
+  var script = SpecialPowers.loadChromeScript(url);
+
+  var MockFilePicker = SpecialPowers.MockFilePicker;
+  MockFilePicker.init(window, "A Mock File Picker", SpecialPowers.Ci.nsIFilePicker.modeGetFolder);
+
+  async function onOpened(message) {
+    MockFilePicker.useDirectory(message.dir);
+
+    let input = document.getElementById(aInputFile);
+    input.setAttribute("data-name", message.name);
+
+    let promptHandled = waitForPromptHandled();
+    let changeEvent = waitForEvent(input, "change");
+
+    input.click();
+
+    await promptHandled;
+    await changeEvent;
+
+    MockFilePicker.cleanup();
+    script.destroy();
+    next();
+  }
+
+  script.addMessageListener("dir.opened", onOpened);
+  script.sendAsyncMessage("dir.open", { path: "test" });
+}
+
+function checkFile(file, fileList, dirName) {
+  for (var i = 0; i < fileList.length; ++i) {
+    ok(fileList[i] instanceof File, "We want just files.");
+    if (fileList[i].name == file.name) {
+      is(fileList[i].webkitRelativePath, dirName + file.path, "Path matches");
+      return;
+    }
+  }
+
+  ok(false, "File not found.");
+}
+
+// Validate the contents of the given input type=file `aInputFile`'s' `files`
+// property against the expected list of files `aWhat`.
+function test_fileList(aInputFile, aWhat) {
+  var input = document.getElementById(aInputFile);
+  var fileList = input.files;
+
+  if (aWhat == null) {
+    is(fileList, null, "We want a null fileList for " + aInputFile);
+    next();
+    return;
+  }
+
+  is(fileList.length, aWhat.length, "We want just " + aWhat.length + " elements for " + aInputFile);
+  for (var i = 0; i < aWhat.length; ++i) {
+    checkFile(aWhat[i], fileList, input.dataset.name);
+  }
+
+  next();
+}
+
+// Verify that we can explicitly select a symlink and it will not be filtered
+// out.  This is really a verification that GetFileHelper's file-handling logic
+// https://searchfox.org/mozilla-central/rev/065102493dfc49234120c37fc6a334a5b1d86d9e/dom/filesystem/GetFilesHelper.cpp#81-86
+// does not proactively take an action to filter out a selected symlink.
+//
+// This is a glass box test that is not entirely realistic for our actual system
+// file pickers but does reflect what will happen in the drag-and-drop case
+// for `HTMLInputElement::MozSetDndFilesAndDirectories` and this helps ensure
+// that future implementation changes will behave as expected.  Specifically,
+// the presence of webkitdirectory will result in the file picker using
+// `modeGetFolder` which will only allow selection of a directory and forbid
+// file selection.
+//
+// This test explicitly does not validate HTMLInputElement's non-webkitdirectory
+// file selection mechanism because it does not involve GetFileHelper.
+async function test_individualSymlink(aInputFile) {
+  const input = document.getElementById(aInputFile);
+
+  // -- Create the symlink and get a `File` instance pointing at it.
+  const url = SimpleTest.getTestFileURL("script_fileList.js");
+  const script = SpecialPowers.loadChromeScript(url);
+
+  let opened = new Promise(resolve => script.addMessageListener("symlink.opened", resolve));
+  script.sendAsyncMessage("symlink.open", {});
+  let { dir, file: symlinkFile } = await opened;
+  info(`symlink.open provided dir: ${dir}`)
+
+  // -- Have the picker pick it
+  var MockFilePicker = SpecialPowers.MockFilePicker;
+  MockFilePicker.init(window, "A Mock File Picker", SpecialPowers.Ci.nsIFilePicker.modeOpen);
+
+  MockFilePicker.displayDirectory = dir;
+  let pickerShown = new Promise(resolve => {
+    MockFilePicker.showCallback = function() {
+      // This is where we are diverging from a realistic scenario in order to get
+      // the expected coverage.
+      MockFilePicker.setFiles([symlinkFile]);
+      resolve();
+    }
+  });
+  MockFilePicker.returnValue = MockFilePicker.returnOK;
+
+  let changeEvent = waitForEvent(input, "change");
+
+  input.click();
+
+  await pickerShown;
+  await changeEvent;
+
+  MockFilePicker.cleanup();
+  script.destroy();
+
+  // -- Verify that we see the symlink.
+  let fileList = input.files;
+  is(fileList.length, 1, "There should be 1 file.");
+  is(fileList[0].name, "symlink.txt", "The file should be the symlink.");
+  next();
+}
+
+function test_webkitdirectory_attribute() {
+  var a = document.createElement("input");
+  a.setAttribute("type", "file");
+
+  ok("webkitdirectory" in a, "HTMLInputElement.webkitdirectory exists");
+
+  ok(!a.hasAttribute("webkitdirectory"), "No webkitdirectory DOM attribute by default");
+  ok(!a.webkitdirectory, "No webkitdirectory attribute by default");
+
+  a.webkitdirectory = true;
+
+  ok(a.hasAttribute("webkitdirectory"), "Webkitdirectory DOM attribute is set");
+  ok(a.webkitdirectory, "Webkitdirectory attribute is set");
+
+  next();
+}
+
+function test_changeDataWhileWorking() {
+  var url = SimpleTest.getTestFileURL("script_fileList.js");
+  var script = SpecialPowers.loadChromeScript(url);
+
+  var MockFilePicker = SpecialPowers.MockFilePicker;
+  MockFilePicker.init(window, "A Mock File Picker", SpecialPowers.Ci.nsIFilePicker.modeGetFolder);
+  let promptHandled;
+
+  // Let's start retrieving the root nsIFile object
+  new Promise(function(resolve) {
+    function onOpened(message) {
+      script.removeMessageListener("dir.opened", onOpened);
+      resolve(message.dir);
+    }
+
+    script.addMessageListener("dir.opened", onOpened);
+    script.sendAsyncMessage("dir.open", { path: "root" });
+  })
+
+  // input.click() pointing to the root dir
+  .then(async function(aDir) {
+    MockFilePicker.cleanup();
+    MockFilePicker.init(window, "A Mock File Picker", SpecialPowers.Ci.nsIFilePicker.modeGetFolder);
+    MockFilePicker.useDirectory(aDir);
+    var input = document.getElementById("inputFileDirectoryChange");
+
+    promptHandled = waitForPromptHandled();
+    input.click();
+  })
+
+  // Before onchange, let's take the 'test' directory
+  .then(function() {
+    return new Promise(function(resolve) {
+      function onOpened(message) {
+        script.removeMessageListener("dir.opened", onOpened);
+        script.destroy();
+        resolve(message.dir);
+      }
+
+      script.addMessageListener("dir.opened", onOpened);
+      script.sendAsyncMessage("dir.open", { path: "test" });
+    });
+  })
+
+  // Now let's click again and wait for onchange.
+  .then(async function(aDir) {
+      MockFilePicker.cleanup();
+      MockFilePicker.init(window, "A Mock File Picker", SpecialPowers.Ci.nsIFilePicker.modeGetFolder);
+      MockFilePicker.useDirectory(aDir);
+
+      let input = document.getElementById("inputFileDirectoryChange");
+      let changeEvent = waitForEvent(input, "change");
+
+      input.click();
+
+      await promptHandled;
+      await changeEvent;
+
+      MockFilePicker.cleanup();
+  })
+  .then(function() {
+    test_fileList("inputFileWebkitDirectory", testDirData);
+  });
+}
+
+async function test_setup() {
+  let promptHandlerUrl = SimpleTest.getTestFileURL("script_promptHandler.js")
+  promptHandler = SpecialPowers.loadChromeScript(promptHandlerUrl);
+
+  let promptHandlerReady = new Promise(resolve => promptHandler.addMessageListener("initDone", resolve));
+  promptHandler.sendAsyncMessage("init");
+  await promptHandlerReady;
+
+  SpecialPowers.pushPrefEnv({"set": [["dom.filesystem.pathcheck.disabled", true],
+                                     ["dom.webkitBlink.dirPicker.enabled", true]]}, next);
+}
+
+async function test_cleanup() {
+  let promptHandlerDone = new Promise(resolve => promptHandler.addMessageListener("cleanupDone", resolve));
+  promptHandler.sendAsyncMessage("cleanup");
+  await promptHandlerDone;
+  promptHandler.destroy();
+}
+
+var testDirData = [ { name: "foo.txt", path: "/foo.txt" },
+                    { name: "bar.txt", path: "/subdir/bar.txt" }];
+
+var tests = [
+  test_setup,
+
+  function() { populateInputFile("inputFileWebkitDirectory"); },
+
+  function() { test_fileList("inputFileWebkitDirectory", testDirData); },
+
+  function() {
+    // Symlinks are not available on Windows and so will not be created.
+    if (AppConstants.platform === "win" || AppConstants.platform === "android") {
+      info("Skipping individual symlink check on Windows and Android.");
+      next();
+      return;
+    }
+
+    test_individualSymlink("inputFileWebkitFile").catch(err => ok(false, `Problem in symlink case: ${err}`));
+  },
+
+  test_webkitdirectory_attribute,
+
+  test_changeDataWhileWorking,
+];
+
+async function next() {
+  if (!tests.length) {
+    await test_cleanup();
+    SimpleTest.finish();
+    return;
+  }
+
+  var test = tests.shift();
+  await test();
+}
+
+SimpleTest.waitForExplicitFinish();
+next();
+</script>
+</body>
+</html>
diff --git a/dom/filesystem/tests/test_worker_basic.html b/dom/filesystem/tests/test_worker_basic.html
new file mode 100644
index 0000000000..920f32719b
--- /dev/null
+++ b/dom/filesystem/tests/test_worker_basic.html
@@ -0,0 +1,73 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for Directory API in workers</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="filesystem_commons.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+
+<body>
+<script type="application/javascript">
+
+var fileList;
+
+function create_fileList() {
+  fileList = document.createElement("input");
+  fileList.setAttribute("type", "file");
+  document.body.appendChild(fileList);
+
+  var url = SimpleTest.getTestFileURL("script_fileList.js");
+  var script = SpecialPowers.loadChromeScript(url);
+
+  function onOpened(message) {
+    SpecialPowers.wrap(fileList).mozSetDirectory(message.dir);
+    script.destroy();
+    next();
+  }
+
+  script.addMessageListener("dir.opened", onOpened);
+  script.sendAsyncMessage("dir.open", { path: "test" });
+}
+
+function test_worker() {
+  SpecialPowers.wrap(fileList).getFilesAndDirectories().then(function(array) {
+    array = SpecialPowers.unwrap(array);
+    var worker = new Worker("worker_basic.js");
+    worker.onmessage = function(e) {
+      if (e.data.type == "finish") {
+        next();
+        return;
+      }
+
+      if (e.data.type == "test") {
+        ok(e.data.test, e.data.message);
+      }
+    };
+
+    worker.postMessage(array[0]);
+  });
+}
+
+var tests = [
+  function() { setup_tests(next); },
+
+  create_fileList,
+  test_worker,
+];
+
+function next() {
+  if (!tests.length) {
+    SimpleTest.finish();
+    return;
+  }
+
+  var test = tests.shift();
+  test();
+}
+
+SimpleTest.waitForExplicitFinish();
+next();
+</script>
+</body>
+</html>
diff --git a/dom/filesystem/tests/worker_basic.js b/dom/filesystem/tests/worker_basic.js
new file mode 100644
index 0000000000..2771c778fd
--- /dev/null
+++ b/dom/filesystem/tests/worker_basic.js
@@ -0,0 +1,50 @@
+/* eslint-env worker */
+importScripts("filesystem_commons.js");
+
+function finish() {
+  postMessage({ type: "finish" });
+}
+
+function ok(a, msg) {
+  postMessage({ type: "test", test: !!a, message: msg });
+}
+
+function is(a, b, msg) {
+  ok(a === b, msg);
+}
+
+function isnot(a, b, msg) {
+  ok(a != b, msg);
+}
+
+var tests = [
+  function () {
+    test_basic(directory, next);
+  },
+  function () {
+    test_getFilesAndDirectories(directory, true, next);
+  },
+  function () {
+    test_getFiles(directory, false, next);
+  },
+  function () {
+    test_getFiles(directory, true, next);
+  },
+];
+
+function next() {
+  if (!tests.length) {
+    finish();
+    return;
+  }
+
+  var test = tests.shift();
+  test();
+}
+
+var directory;
+
+onmessage = function (e) {
+  directory = e.data;
+  next();
+};
-- 
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