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Diffstat (limited to 'js/src/jit-test/tests/collections/Map-set-undefined.js')
-rw-r--r-- | js/src/jit-test/tests/collections/Map-set-undefined.js | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Map-set-undefined.js b/js/src/jit-test/tests/collections/Map-set-undefined.js new file mode 100644 index 0000000000..44ad134a99 --- /dev/null +++ b/js/src/jit-test/tests/collections/Map-set-undefined.js @@ -0,0 +1,15 @@ +// Setting a Map key to undefined, or a missing argument, isn't the same as deleting it. + +var m = new Map; +m.set(42, undefined); +assertEq(m.has(42), true); +assertEq(m.get(42), undefined); + +m.set(42, "wrong"); +m.set(42); +assertEq(m.has(42), true); +assertEq(m.get(42), undefined); + +m.set(); +assertEq(m.has(undefined), true); +assertEq(m.get(undefined), undefined); |