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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /services/sync/tests/unit/test_utils_lock.js
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'services/sync/tests/unit/test_utils_lock.js')
-rw-r--r--services/sync/tests/unit/test_utils_lock.js76
1 files changed, 76 insertions, 0 deletions
diff --git a/services/sync/tests/unit/test_utils_lock.js b/services/sync/tests/unit/test_utils_lock.js
new file mode 100644
index 0000000000..71d6486ff9
--- /dev/null
+++ b/services/sync/tests/unit/test_utils_lock.js
@@ -0,0 +1,76 @@
+_("Make sure lock prevents calling with a shared lock");
+
+// Utility that we only use here.
+
+function do_check_begins(thing, startsWith) {
+ if (!(thing && thing.indexOf && thing.indexOf(startsWith) == 0)) {
+ do_throw(thing + " doesn't begin with " + startsWith);
+ }
+}
+
+add_task(async function run_test() {
+ let ret, rightThis, didCall;
+ let state, lockState, lockedState, unlockState;
+ let obj = {
+ _lock: Utils.lock,
+ lock() {
+ lockState = ++state;
+ if (this._locked) {
+ lockedState = ++state;
+ return false;
+ }
+ this._locked = true;
+ return true;
+ },
+ unlock() {
+ unlockState = ++state;
+ this._locked = false;
+ },
+
+ func() {
+ return this._lock("Test utils lock", async function () {
+ rightThis = this == obj;
+ didCall = true;
+ return 5;
+ })();
+ },
+
+ throwy() {
+ return this._lock("Test utils lock throwy", async function () {
+ rightThis = this == obj;
+ didCall = true;
+ return this.throwy();
+ })();
+ },
+ };
+
+ _("Make sure a normal call will call and return");
+ rightThis = didCall = false;
+ state = 0;
+ ret = await obj.func();
+ Assert.equal(ret, 5);
+ Assert.ok(rightThis);
+ Assert.ok(didCall);
+ Assert.equal(lockState, 1);
+ Assert.equal(unlockState, 2);
+ Assert.equal(state, 2);
+
+ _("Make sure code that calls locked code throws");
+ ret = null;
+ rightThis = didCall = false;
+ try {
+ ret = await obj.throwy();
+ do_throw("throwy internal call should have thrown!");
+ } catch (ex) {
+ // Should throw an Error, not a string.
+ do_check_begins(ex.message, "Could not acquire lock");
+ }
+ Assert.equal(ret, null);
+ Assert.ok(rightThis);
+ Assert.ok(didCall);
+ _("Lock should be called twice so state 3 is skipped");
+ Assert.equal(lockState, 4);
+ Assert.equal(lockedState, 5);
+ Assert.equal(unlockState, 6);
+ Assert.equal(state, 6);
+});