Add m-esr52 at 52.6.0

1 files changed, 64 insertions, 0 deletions

diff --git a/js/src/tests/ecma_6/Function/function-name.js b/js/src/tests/ecma_6/Function/function-name.js
new file mode 100644
index 000000000..7beca56df
--- /dev/null
+++ b/js/src/tests/ecma_6/Function/function-name.js
@@ -0,0 +1,64 @@
+function testFunctionName(f) {
+    var name = f.name;
+    f.name = 'g';
+    assertEq(f.name, name);
+    assertEq(delete f.name, true);
+    assertEq(f.name, '');
+    assertEq(f.hasOwnProperty('name'), false);
+    f.name = 'g';
+    assertEq(f.name, '');
+    Object.defineProperty(f, 'name', {value: 'g'});
+    assertEq(f.name, 'g');
+}
+function testFunctionNameStrict(f) {
+    "use strict";
+    var name = f.name;
+    var error;
+    try {
+        f.name = 'g';
+    } catch (e) {
+        error = e;
+    }
+    assertEq(f.name, name);
+    assertEq(error instanceof TypeError, true);
+    assertEq(delete f.name, true);
+    assertEq(f.name, '');
+    assertEq(f.hasOwnProperty('name'), false);
+    error = null;
+    try {
+        f.name = 'g';
+    } catch (e) {
+        error = e;
+    }
+    assertEq(f.name, '');
+    assertEq(error instanceof TypeError, true);
+    Object.defineProperty(f, 'name', {value: 'g'});
+    assertEq(f.name, 'g');
+}
+
+assertEq(Object.getOwnPropertyDescriptor(Object, "name").writable, false);
+assertEq(Object.getOwnPropertyDescriptor(Object, "name").enumerable, false);
+assertEq(Object.getOwnPropertyDescriptor(Object, "name").configurable, true);
+assertEq(Object.getOwnPropertyDescriptor(Object, "name").value, 'Object');
+assertEq(Object.getOwnPropertyDescriptor(function f(){}, "name").writable, false);
+assertEq(Object.getOwnPropertyDescriptor(function f(){}, "name").enumerable, false);
+assertEq(Object.getOwnPropertyDescriptor(function f(){}, "name").configurable, true);
+assertEq(Object.getOwnPropertyDescriptor(function f(){}, "name").value, 'f');
+
+// Basic test ensuring that Object.defineProperty works on pristine function.
+function f() {};
+Object.defineProperty(f, 'name', {value: 'g'});
+assertEq(f.name, 'g');
+
+// .name behaves as expected on scripted function.
+testFunctionName(function f(){});
+testFunctionNameStrict(function f(){});
+// .name behaves as expected on builtin function.
+testFunctionName(Function.prototype.apply);
+testFunctionNameStrict(Function.prototype.call);
+// .name behaves as expected on self-hosted builtin function.
+testFunctionName(Array.prototype.forEach);
+testFunctionNameStrict(Array.prototype.some);
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0);