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-rw-r--r--js/src/jit-test/lib/nightly-only.js23
1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/jit-test/lib/nightly-only.js b/js/src/jit-test/lib/nightly-only.js
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+++ b/js/src/jit-test/lib/nightly-only.js
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+// Some experimental features are enabled only on nightly builds, and disabled
+// on beta and release. Tests for these features should not simply disable
+// themselves on all but nightly builds, because if we neglect to update such
+// tests once the features cease to be experimental, we'll silently skip the
+// tests on beta and release, even though they should run.
+
+// Call the function f. On beta and release, expect it to throw an error that is
+// an instance of error.
+function nightlyOnly(error, f) {
+ if (getBuildConfiguration("release_or_beta")) {
+ try {
+ f();
+ throw new Error("use of feature expected to fail on release and beta, but succeeded; please update test");
+ } catch (e) {
+ if (!(e instanceof error)) {
+ throw e;
+ }
+ // All is well.
+ }
+ } else {
+ f();
+ }
+}