diff options
Diffstat (limited to 'js/src/jit-test/tests/collections/key-equality-0.js')
-rw-r--r-- | js/src/jit-test/tests/collections/key-equality-0.js | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/key-equality-0.js b/js/src/jit-test/tests/collections/key-equality-0.js new file mode 100644 index 0000000000..7f9da8c2bd --- /dev/null +++ b/js/src/jit-test/tests/collections/key-equality-0.js @@ -0,0 +1,43 @@ +// -0 is treated as the same key as +0. + +var s = new Set; +s.add(-0); +assertEq(s.has(0), true); +assertEq(s.has(-0), true); + +assertEq(s.delete(0), true); +assertEq(s.has(-0), false); +assertEq(s.has(0), false); + +s.add(0); +assertEq(s.has(0), true); +assertEq(s.has(-0), true); +assertEq(s.delete(-0), true); +assertEq(s.has(-0), false); +assertEq(s.has(0), false); + +var m = new Map; +m.set(-0, 'x'); +assertEq(m.has(0), true); +assertEq(m.get(0), 'x'); +assertEq(m.has(-0), true); +assertEq(m.get(-0), 'x'); + +assertEq(m.delete(0), true); +assertEq(m.has(-0), false); +assertEq(m.get(-0), undefined); +assertEq(m.has(0), false); +assertEq(m.get(0), undefined); + +m.set(-0, 'x'); +m.set(0, 'y'); +assertEq(m.has(0), true); +assertEq(m.get(0), 'y'); +assertEq(m.has(-0), true); +assertEq(m.get(-0), 'y'); + +assertEq(m.delete(-0), true); +assertEq(m.has(0), false); +assertEq(m.get(0), undefined); +assertEq(m.has(-0), false); +assertEq(m.get(-0), undefined); |