2 files changed, 126 insertions, 0 deletions
diff --git a/netwerk/test/marionette/manifest.ini b/netwerk/test/marionette/manifest.ini
new file mode 100644
index 0000000000..e2025ab3c9
--- /dev/null
+++ b/netwerk/test/marionette/manifest.ini
@@ -0,0 +1 @@
+[test_purge_http_cache_at_shutdown.py]
diff --git a/netwerk/test/marionette/test_purge_http_cache_at_shutdown.py b/netwerk/test/marionette/test_purge_http_cache_at_shutdown.py
new file mode 100644
index 0000000000..ee27e29e8d
--- /dev/null
+++ b/netwerk/test/marionette/test_purge_http_cache_at_shutdown.py
@@ -0,0 +1,125 @@
+# 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/.
+
+import os
+from pathlib import Path
+
+from marionette_driver import Wait
+from marionette_harness import MarionetteTestCase
+
+
+class PurgeHTTPCacheAtShutdownTestCase(MarionetteTestCase):
+    def setUp(self):
+        super().setUp()
+        self.marionette.enforce_gecko_prefs(
+            {
+                "privacy.sanitize.sanitizeOnShutdown": True,
+                "privacy.clearOnShutdown.cache": True,
+                "network.cache.shutdown_purge_in_background_task": True,
+            }
+        )
+
+        self.profile_path = Path(self.marionette.profile_path)
+        self.cache_path = self.profile_path.joinpath("cache2")
+
+    def tearDown(self):
+        self.marionette.cleanup()
+        super().tearDown()
+
+    def cacheDirExists(self):
+        return self.cache_path.exists()
+
+    def renamedDirExists(self):
+        return any(
+            child.name.endswith(".purge.bg_rm") for child in self.profile_path.iterdir()
+        )
+
+    def initLockDir(self):
+        self.lock_dir = None
+        with self.marionette.using_context("chrome"):
+            path = self.marionette.execute_script(
+                """
+              return Services.dirsvc.get("UpdRootD", Ci.nsIFile).parent.parent.path;
+            """
+            )
+            self.lock_dir = Path(path)
+
+    def assertNoLocks(self):
+        locks = [
+            x
+            for x in self.lock_dir.iterdir()
+            if x.is_file() and "-cachePurge" in x.name
+        ]
+        self.assertEqual(locks, [], "All locks should have been removed")
+
+    # Tests are run in lexicographical order, so test_a* is run first to
+    # cleanup locks that may be there from previous runs.
+    def test_asetup(self):
+        self.initLockDir()
+
+        self.marionette.quit()
+
+        Wait(self.marionette, timeout=60).until(
+            lambda _: not self.cacheDirExists() and not self.renamedDirExists(),
+            message="Cache directory must be removed after orderly shutdown",
+        )
+
+        # delete locks from previous runs
+        locks = [
+            x
+            for x in self.lock_dir.iterdir()
+            if x.is_file() and "-cachePurge" in x.name
+        ]
+        for lock in locks:
+            os.remove(lock)
+        # all locks should have been removed successfully.
+        self.assertNoLocks()
+
+    def test_ensure_cache_purge_after_in_app_quit(self):
+        self.assertTrue(self.cacheDirExists(), "Cache directory must exist")
+        self.initLockDir()
+
+        self.marionette.quit()
+
+        Wait(self.marionette, timeout=60).until(
+            lambda _: not self.cacheDirExists() and not self.renamedDirExists(),
+            message="Cache directory must be removed after orderly shutdown",
+        )
+
+        self.assertNoLocks()
+
+    def test_longstanding_cache_purge_after_in_app_quit(self):
+        self.assertTrue(self.cacheDirExists(), "Cache directory must exist")
+        self.initLockDir()
+
+        self.marionette.set_pref(
+            "toolkit.background_tasks.remove_directory.testing.sleep_ms", 5000
+        )
+
+        self.marionette.quit()
+
+        Wait(self.marionette, timeout=60).until(
+            lambda _: not self.cacheDirExists() and not self.renamedDirExists(),
+            message="Cache directory must be removed after orderly shutdown",
+        )
+
+        self.assertNoLocks()
+
+    def test_ensure_cache_purge_after_forced_restart(self):
+        """
+        Doing forced restart here to prevent the shutdown phase purging and only allow startup
+        phase one, via `CacheFileIOManager::OnDelayedStartupFinished`.
+        """
+        self.profile_path.joinpath("foo.purge.bg_rm").mkdir()
+        self.initLockDir()
+
+        self.marionette.restart(in_app=False)
+
+        Wait(self.marionette, timeout=60).until(
+            lambda _: not self.renamedDirExists(),
+            message="Directories with .purge.bg_rm postfix must be removed at startup after"
+            "disorderly shutdown",
+        )
+
+        self.assertNoLocks()