1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/hasown.js b/js/src/jit-test/tests/cacheir/hasown.js
new file mode 100644
index 0000000000..5a3bf28d6d
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/hasown.js
@@ -0,0 +1,46 @@
+var max = 40;
+setJitCompilerOption("ion.warmup.trigger", max - 10);
+
+function simple() {
+    var array = [{a: 1}, {b: 1, a: 1}, {c: 1, a: 1}];
+    for (var i = 0; i < array.length; i++) {
+        var x = array[i];
+        assertEq(x.hasOwnProperty("a"), true);
+        assertEq(x.hasOwnProperty("d"), false);
+    }
+}
+
+function megamorphic() {
+    var array = [{a: 1}, {b: 1, a: 1}, {c: 1, a: 1},
+                 {a: 1, b: 1}, {c: 1, e: 1, a: 1},
+                 {e: 1, f: 1, a: 1, g: 1},
+                 {e: 1, f: 1, a: 1, g: 1, h: 1}];
+    for (var i = 0; i < array.length; i++) {
+        var x = array[i];
+        assertEq(x.hasOwnProperty("a"), true);
+        assertEq(x.hasOwnProperty("d"), false);
+    }
+}
+
+function key() {
+    var sym = Symbol(), sym2 = Symbol();
+    var keys = [[sym, true], [sym2, false],
+                ["a", true], ["b", false],
+                [{}, false]];
+    var obj = {[sym]: 1, a: 1};
+    for (var i = 0; i < keys.length; i++) {
+        var [key, result] = keys[i];
+        assertEq(obj.hasOwnProperty(key), result);
+    }
+}
+
+function test() {
+    for (var i = 0; i < max; i++) {
+        simple();
+        megamorphic();
+        key();
+    }
+}
+
+test();
+test();