diff options
Diffstat (limited to 'js/src/jit-test/tests/basic/dict-object-freeze-or-seal.js')
-rw-r--r-- | js/src/jit-test/tests/basic/dict-object-freeze-or-seal.js | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/dict-object-freeze-or-seal.js b/js/src/jit-test/tests/basic/dict-object-freeze-or-seal.js new file mode 100644 index 0000000000..595e5ca55a --- /dev/null +++ b/js/src/jit-test/tests/basic/dict-object-freeze-or-seal.js @@ -0,0 +1,26 @@ +let sym = Symbol(); + +let o = {x: 1, y: 2, z: 3, a: 4, b: 5, 12345678: 6, [sym]: 7}; +for (let i = 0; i < 100; i++) { + o["foo" + i] = 1; +} +delete o.x; + +Object.seal(o); +assertEq(Object.getOwnPropertyNames(o).length, 105); +assertEq(Object.getOwnPropertySymbols(o).length, 1); + +assertEq(Object.isSealed(o), true); +assertEq(Object.isFrozen(o), false); + +let desc = Object.getOwnPropertyDescriptor(o, "y"); +assertEq(desc.writable, true); +assertEq(desc.configurable, false); + +Object.freeze(o); +assertEq(Object.isSealed(o), true); +assertEq(Object.isFrozen(o), true); + +desc = Object.getOwnPropertyDescriptor(o, "y"); +assertEq(desc.writable, false); +assertEq(desc.configurable, false); |