1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/truthiness/equal-undefined.js b/js/src/jit-test/tests/truthiness/equal-undefined.js
new file mode 100644
index 0000000000..b807098cb3
--- /dev/null
+++ b/js/src/jit-test/tests/truthiness/equal-undefined.js
@@ -0,0 +1,37 @@
+function f(v, value)
+{
+  var b = v == undefined;
+  assertEq(b, value,
+           "failed: " + v + " " + value);
+}
+
+f({}, false);
+f({}, false);
+f(null, true);
+f(null, true);
+f(undefined, true);
+f(undefined, true);
+f(createIsHTMLDDA(), true);
+f(createIsHTMLDDA(), true);
+f(Object.prototype, false);
+f(Object.prototype, false);
+
+function g(v, value)
+{
+  var b = v == undefined;
+  assertEq(b, value,
+           "failed: " + v + " " + value);
+}
+
+g({}, false);
+g({}, false);
+
+function h(v, value)
+{
+  var b = v == undefined;
+  assertEq(b, value,
+           "failed: " + v + " " + value);
+}
+
+h(createIsHTMLDDA(), true);
+h(createIsHTMLDDA(), true);