Add m-esr52 at 52.6.0

1 files changed, 59 insertions, 0 deletions

diff --git a/js/src/tests/ecma_6/Reflect/surfaces.js b/js/src/tests/ecma_6/Reflect/surfaces.js
new file mode 100644
index 000000000..d8486363a
--- /dev/null
+++ b/js/src/tests/ecma_6/Reflect/surfaces.js
@@ -0,0 +1,59 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/ */
+
+// Check surface features of the Reflect object.
+assertEq(typeof Reflect, 'object');
+assertEq(Object.getPrototypeOf(Reflect), Object.prototype);
+assertEq(Reflect.toString(), '[object Object]');
+assertThrowsInstanceOf(() => new Reflect, TypeError);
+
+var desc = Object.getOwnPropertyDescriptor(this, "Reflect");
+assertEq(desc.enumerable, false);
+assertEq(desc.configurable, true);
+assertEq(desc.writable, true);
+
+for (var name in Reflect)
+    throw new Error("Reflect should not have any enumerable properties");
+
+// The name and length of all the standard Reflect methods.
+var methods = {
+    apply: 3,
+    construct: 2,
+    defineProperty: 3,
+    deleteProperty: 2,
+    get: 2,
+    getOwnPropertyDescriptor: 2,
+    getPrototypeOf: 1,
+    has: 2,
+    isExtensible: 1,
+    ownKeys: 1,
+    preventExtensions: 1,
+    set: 3,
+    setPrototypeOf: 2
+};
+
+// Check that all Reflect properties are listed above.
+for (var name of Reflect.ownKeys(Reflect)) {
+    // If this assertion fails, congratulations on implementing a new Reflect feature!
+    // Add it to the list of methods above.
+    if (name !== "parse")
+        assertEq(name in methods, true, `unexpected property found: Reflect.${name}`);
+}
+
+// Check the .length and property attributes of each Reflect method.
+for (var name of Object.keys(methods)) {
+    var desc = Object.getOwnPropertyDescriptor(Reflect, name);
+    assertEq(desc.enumerable, false);
+    assertEq(desc.configurable, true);
+    assertEq(desc.writable, true);
+    var f = desc.value;
+    assertEq(typeof f, "function");
+    assertEq(f.length, methods[name]);
+}
+
+// Check that the SpiderMonkey "resolve hook" mechanism does not resurrect the
+// Reflect property once it is deleted.
+delete this.Reflect;
+assertEq("Reflect" in this, false);
+
+reportCompare(0, 0);