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-rw-r--r--js/src/tests/ecma_6/Function/function-name.js64
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);