1 files changed, 67 insertions, 0 deletions
diff --git a/browser/components/downloads/test/unit/head.js b/browser/components/downloads/test/unit/head.js
new file mode 100644
index 0000000000..26420497f9
--- /dev/null
+++ b/browser/components/downloads/test/unit/head.js
@@ -0,0 +1,67 @@
+ChromeUtils.defineESModuleGetters(this, {
+  Downloads: "resource://gre/modules/Downloads.sys.mjs",
+  DownloadsCommon: "resource:///modules/DownloadsCommon.sys.mjs",
+  FileTestUtils: "resource://testing-common/FileTestUtils.sys.mjs",
+  FileUtils: "resource://gre/modules/FileUtils.sys.mjs",
+  TestUtils: "resource://testing-common/TestUtils.sys.mjs",
+});
+ChromeUtils.defineModuleGetter(
+  this,
+  "NetUtil",
+  "resource://gre/modules/NetUtil.jsm"
+);
+
+async function createDownloadedFile(pathname, contents) {
+  info("createDownloadedFile: " + pathname);
+  let file = new FileUtils.File(pathname);
+  if (file.exists()) {
+    info(`File at ${pathname} already exists`);
+    if (!contents) {
+      ok(
+        false,
+        `A file already exists at ${pathname}, but createDownloadedFile was asked to create a non-existant file`
+      );
+    }
+  }
+  if (contents) {
+    await IOUtils.writeUTF8(pathname, contents);
+    ok(file.exists(), `Created ${pathname}`);
+  }
+  // No post-test cleanup necessary; tmp downloads directory is already removed after each test
+  return file;
+}
+
+let gDownloadDir;
+
+async function setDownloadDir() {
+  let tmpDir = Services.dirsvc.get("TmpD", Ci.nsIFile).path;
+  tmpDir = PathUtils.join(
+    tmpDir,
+    "testsavedir" + Math.floor(Math.random() * 2 ** 32)
+  );
+  // Create this dir if it doesn't exist (ignores existing dirs)
+  await IOUtils.makeDirectory(tmpDir);
+  registerCleanupFunction(async function() {
+    try {
+      await IOUtils.remove(tmpDir, { recursive: true });
+    } catch (e) {
+      console.error(e);
+    }
+  });
+  Services.prefs.setIntPref("browser.download.folderList", 2);
+  Services.prefs.setCharPref("browser.download.dir", tmpDir);
+  return tmpDir;
+}
+
+/**
+ * All the tests are implemented with add_task, this starts them automatically.
+ */
+function run_test() {
+  do_get_profile();
+  run_next_test();
+}
+
+add_setup(async function test_common_initialize() {
+  gDownloadDir = await setDownloadDir();
+  Services.prefs.setCharPref("browser.download.loglevel", "Debug");
+});