summaryrefslogtreecommitdiffstats
path: root/toolkit/components/telemetry/tests/unit/test_TelemetryLockCount.js
diff options
context:
space:
mode:
Diffstat (limited to 'toolkit/components/telemetry/tests/unit/test_TelemetryLockCount.js')
-rw-r--r--toolkit/components/telemetry/tests/unit/test_TelemetryLockCount.js53
1 files changed, 53 insertions, 0 deletions
diff --git a/toolkit/components/telemetry/tests/unit/test_TelemetryLockCount.js b/toolkit/components/telemetry/tests/unit/test_TelemetryLockCount.js
new file mode 100644
index 000000000..808f2f3ec
--- /dev/null
+++ b/toolkit/components/telemetry/tests/unit/test_TelemetryLockCount.js
@@ -0,0 +1,53 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/
+*/
+/* A testcase to make sure reading the failed profile lock count works. */
+
+Cu.import("resource://gre/modules/Services.jsm", this);
+
+const LOCK_FILE_NAME = "Telemetry.FailedProfileLocks.txt";
+const N_FAILED_LOCKS = 10;
+
+// Constants from prio.h for nsIFileOutputStream.init
+const PR_WRONLY = 0x2;
+const PR_CREATE_FILE = 0x8;
+const PR_TRUNCATE = 0x20;
+const RW_OWNER = parseInt("0600", 8);
+
+function write_string_to_file(file, contents) {
+ let ostream = Cc["@mozilla.org/network/safe-file-output-stream;1"]
+ .createInstance(Ci.nsIFileOutputStream);
+ ostream.init(file, PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE,
+ RW_OWNER, ostream.DEFER_OPEN);
+ ostream.write(contents, contents.length);
+ ostream.QueryInterface(Ci.nsISafeOutputStream).finish();
+ ostream.close();
+}
+
+function construct_file() {
+ let profileDirectory = Services.dirsvc.get("ProfD", Ci.nsIFile);
+ let file = profileDirectory.clone();
+ file.append(LOCK_FILE_NAME);
+ return file;
+}
+
+function run_test() {
+ do_get_profile();
+
+ do_check_eq(Telemetry.failedProfileLockCount, 0);
+
+ write_string_to_file(construct_file(), N_FAILED_LOCKS.toString());
+
+ // Make sure that we're not eagerly reading the count now that the
+ // file exists.
+ do_check_eq(Telemetry.failedProfileLockCount, 0);
+
+ do_test_pending();
+ Telemetry.asyncFetchTelemetryData(actual_test);
+}
+
+function actual_test() {
+ do_check_eq(Telemetry.failedProfileLockCount, N_FAILED_LOCKS);
+ do_check_false(construct_file().exists());
+ do_test_finished();
+}