summaryrefslogtreecommitdiffstats
path: root/testing/web-platform/tests/web-locks/mode-mixed.tentative.https.any.js
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--testing/web-platform/tests/web-locks/mode-mixed.tentative.https.any.js98
1 files changed, 98 insertions, 0 deletions
diff --git a/testing/web-platform/tests/web-locks/mode-mixed.tentative.https.any.js b/testing/web-platform/tests/web-locks/mode-mixed.tentative.https.any.js
new file mode 100644
index 0000000000..5f34588693
--- /dev/null
+++ b/testing/web-platform/tests/web-locks/mode-mixed.tentative.https.any.js
@@ -0,0 +1,98 @@
+// META: title=Web Locks API: Mixed Modes
+// META: script=resources/helpers.js
+// META: global=window,dedicatedworker,sharedworker,serviceworker
+
+'use strict';
+
+promise_test(async t => {
+ let unblock;
+ const blocked = new Promise(r => { unblock = r; });
+
+ const granted = [];
+
+ // These should be granted immediately, and held until unblocked.
+ navigator.locks.request('a', {mode: 'shared'}, async lock => {
+ granted.push('a-shared-1'); await blocked; });
+ navigator.locks.request('a', {mode: 'shared'}, async lock => {
+ granted.push('a-shared-2'); await blocked; });
+ navigator.locks.request('a', {mode: 'shared'}, async lock => {
+ granted.push('a-shared-3'); await blocked; });
+
+ // This should be blocked.
+ let exclusive_lock;
+ const exclusive_request = navigator.locks.request('a', async lock => {
+ granted.push('a-exclusive');
+ exclusive_lock = lock;
+ });
+
+ // This should be granted immediately (different name).
+ await navigator.locks.request('b', {mode: 'exclusive'}, lock => {
+ granted.push('b-exclusive'); });
+
+ assert_array_equals(
+ granted, ['a-shared-1', 'a-shared-2', 'a-shared-3', 'b-exclusive']);
+
+ // Release the shared locks granted above.
+ unblock();
+
+ // Now the blocked request can be granted.
+ await exclusive_request;
+ assert_equals(exclusive_lock.mode, 'exclusive');
+
+ assert_array_equals(
+ granted,
+ ['a-shared-1', 'a-shared-2', 'a-shared-3', 'b-exclusive', 'a-exclusive']);
+
+}, 'Lock requests are granted in order');
+
+promise_test(async t => {
+ const res = uniqueName(t);
+
+ let [promise, resolve] = makePromiseAndResolveFunc();
+
+ const exclusive = navigator.locks.request(res, () => promise);
+ for (let i = 0; i < 5; i++) {
+ requestLockAndHold(t, res, { mode: "shared" });
+ }
+
+ let answer = await navigator.locks.query();
+ assert_equals(answer.held.length, 1, "An exclusive lock is held");
+ assert_equals(answer.pending.length, 5, "Requests for shared locks are pending");
+ resolve();
+ await exclusive;
+
+ answer = await navigator.locks.query();
+ assert_equals(answer.held.length, 5, "Shared locks are held");
+ assert_true(answer.held.every(l => l.mode === "shared"), "All held locks are shared ones");
+}, 'Releasing exclusive lock grants multiple shared locks');
+
+promise_test(async t => {
+ const res = uniqueName(t);
+
+ let [sharedPromise, sharedResolve] = makePromiseAndResolveFunc();
+ let [exclusivePromise, exclusiveResolve] = makePromiseAndResolveFunc();
+
+ const sharedReleasedPromise = Promise.all(new Array(5).fill(0).map(
+ () => navigator.locks.request(res, { mode: "shared" }, () => sharedPromise))
+ );
+ const exclusiveReleasedPromise = navigator.locks.request(res, () => exclusivePromise);
+ for (let i = 0; i < 5; i++) {
+ requestLockAndHold(t, res, { mode: "shared" });
+ }
+
+ let answer = await navigator.locks.query();
+ assert_equals(answer.held.length, 5, "Shared locks are held");
+ assert_true(answer.held.every(l => l.mode === "shared"), "All held locks are shared ones");
+ sharedResolve();
+ await sharedReleasedPromise;
+
+ answer = await navigator.locks.query();
+ assert_equals(answer.held.length, 1, "An exclusive lock is held");
+ assert_equals(answer.held[0].mode, "exclusive");
+ exclusiveResolve();
+ await exclusiveReleasedPromise;
+
+ answer = await navigator.locks.query();
+ assert_equals(answer.held.length, 5, "The next shared locks are held");
+ assert_true(answer.held.every(l => l.mode === "shared"), "All held locks are shared ones");
+}, 'An exclusive lock between shared locks');