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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/jit-test/tests/basic/error-stack-accessors.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/basic/error-stack-accessors.js')
-rw-r--r-- | js/src/jit-test/tests/basic/error-stack-accessors.js | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/error-stack-accessors.js b/js/src/jit-test/tests/basic/error-stack-accessors.js new file mode 100644 index 0000000000..9bbcae14ba --- /dev/null +++ b/js/src/jit-test/tests/basic/error-stack-accessors.js @@ -0,0 +1,31 @@ +// Test the Error.prototype.stack getter/setter with various "fun" edge cases. + +load(libdir + "asserts.js"); + +// Stack should be accessible in subclasses. The accessor should walk up the +// prototype chain. +assertEq(typeof Object.create(Error()).stack, "string"); +assertEq(Object.create(Error.prototype).stack, ""); + +// Stack should be overridable in subclasses. +{ + let myError = Object.create(Error()); + myError.stack = 5; + assertEq(myError.stack, 5); + + let myOtherError = Object.create(Error.prototype); + myOtherError.stack = 2; + assertEq(myOtherError.stack, 2); +} + +// Should throw when there is no Error in the `this` object's prototype chain. +var obj = Object.create(null); +var desc = Object.getOwnPropertyDescriptor(Error.prototype, "stack"); +Object.defineProperty(obj, "stack", desc); +assertThrowsInstanceOf(() => obj.stack, TypeError); + +// Should throw with non-object `this` values. +assertThrowsInstanceOf(desc.set, TypeError); +assertThrowsInstanceOf(desc.set.bind("string"), TypeError); +assertThrowsInstanceOf(desc.get, TypeError); +assertThrowsInstanceOf(desc.get.bind("string"), TypeError); |