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-rw-r--r--js/src/jit-test/tests/basic/testIn.js19
1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testIn.js b/js/src/jit-test/tests/basic/testIn.js
new file mode 100644
index 000000000..aeadab308
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testIn.js
@@ -0,0 +1,19 @@
+function testIn() {
+ var array = [3];
+ var obj = { "-1": 5, "1.7": 3, "foo": 5, "1": 7 };
+ var a = [];
+ for (let j = 0; j < 5; ++j) {
+ a.push("0" in array);
+ a.push(-1 in obj);
+ a.push(1.7 in obj);
+ a.push("foo" in obj);
+ a.push(1 in obj);
+ a.push("1" in array);
+ a.push(-2 in obj);
+ a.push(2.7 in obj);
+ a.push("bar" in obj);
+ a.push(2 in obj);
+ }
+ return a.join(",");
+}
+assertEq(testIn(), "true,true,true,true,true,false,false,false,false,false,true,true,true,true,true,false,false,false,false,false,true,true,true,true,true,false,false,false,false,false,true,true,true,true,true,false,false,false,false,false,true,true,true,true,true,false,false,false,false,false");