Add m-esr52 at 52.6.0

1 files changed, 72 insertions, 0 deletions

diff --git a/js/src/tests/ecma_6/Reflect/get.js b/js/src/tests/ecma_6/Reflect/get.js
new file mode 100644
index 000000000..b38b188b0
--- /dev/null
+++ b/js/src/tests/ecma_6/Reflect/get.js
@@ -0,0 +1,72 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/ */
+
+// Reflect.get gets the value of a property.
+
+var x = {p: 1};
+assertEq(Reflect.get(x, "p"), 1);
+assertEq(Reflect.get(x, "toString"), Object.prototype.toString);
+assertEq(Reflect.get(x, "missing"), undefined);
+
+
+// === Various targets
+
+// Array
+assertEq(Reflect.get([], 700), undefined);
+assertEq(Reflect.get(["zero", "one"], 1), "one");
+
+// TypedArray
+assertEq(Reflect.get(new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7]), 7), 7);
+
+// Treatment of NaN
+var f = new Float64Array([NaN]);
+var u = new Uint32Array(f.buffer);
+u[0]++;
+u[1]++;
+assertEq(f[0], NaN);
+assertEq(Reflect.get(f, 0), NaN);
+
+// Proxy with no get handler
+assertEq(Reflect.get(new Proxy(x, {}), "p"), 1);
+
+// Proxy with a get handler
+var obj = new Proxy(x, {
+    get(t, k, r) { return k + "ful"; }
+});
+assertEq(Reflect.get(obj, "mood"), "moodful");
+
+// Exceptions thrown by a proxy's get handler are propagated.
+assertThrowsInstanceOf(() => Reflect.get(obj, Symbol()), TypeError);
+
+// Ordinary object, property has a setter and no getter
+obj = {set name(x) {}};
+assertEq(Reflect.get(obj, "name"), undefined);
+
+
+// === Receiver
+
+// Receiver argument is passed to getters as the this-value.
+obj = { get x() { return this; }};
+assertEq(Reflect.get(obj, "x", Math), Math);
+assertEq(Reflect.get(Object.create(obj), "x", JSON), JSON);
+
+// If missing, target is passed instead.
+assertEq(Reflect.get(obj, "x"), obj);
+
+// Receiver argument is passed to the proxy get handler.
+obj = new Proxy({}, {
+    get(t, k, r) {
+        assertEq(k, "itself");
+        return r;
+    }
+});
+assertEq(Reflect.get(obj, "itself"), obj);
+assertEq(Reflect.get(obj, "itself", Math), Math);
+assertEq(Reflect.get(Object.create(obj), "itself", Math), Math);
+
+// The receiver shouldn't have to be an object
+assertEq(Reflect.get(obj, "itself", 37.2), 37.2);
+
+// For more Reflect.get tests, see target.js and propertyKeys.js.
+
+reportCompare(0, 0);