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27
28// Test ES5 section 15.2.3.4 Object.getOwnPropertyNames.
29
30// Check simple cases.
31var obj = { a: 1, b: 2};
32var propertyNames = Object.getOwnPropertyNames(obj);
33propertyNames.sort();
34assertEquals(2, propertyNames.length);
35assertEquals("a", propertyNames[0]);
36assertEquals("b", propertyNames[1]);
37
38var obj = { a: function(){}, b: function(){} };
39var propertyNames = Object.getOwnPropertyNames(obj);
40propertyNames.sort();
41assertEquals(2, propertyNames.length);
42assertEquals("a", propertyNames[0]);
43assertEquals("b", propertyNames[1]);
44
45// Check slow case
46var obj = { a: 1, b: 2, c: 3 };
47delete obj.b;
48var propertyNames = Object.getOwnPropertyNames(obj)
49propertyNames.sort();
50assertEquals(2, propertyNames.length);
51assertEquals("a", propertyNames[0]);
52assertEquals("c", propertyNames[1]);
53
54// Check that non-enumerable properties are being returned.
55var propertyNames = Object.getOwnPropertyNames([1, 2]);
56propertyNames.sort();
57assertEquals(3, propertyNames.length);
58assertEquals("0", propertyNames[0]);
59assertEquals("1", propertyNames[1]);
60assertEquals("string", typeof propertyNames[0]);
61assertEquals("string", typeof propertyNames[1]);
62assertEquals("length", propertyNames[2]);
63
64// Check that no proto properties are returned.
65var obj = { foo: "foo" };
66obj.__proto__ = { bar: "bar" };
67propertyNames = Object.getOwnPropertyNames(obj);
68propertyNames.sort();
69assertEquals(1, propertyNames.length);
70assertEquals("foo", propertyNames[0]);
71
72// Check that getter properties are returned.
73var obj = {};
74obj.__defineGetter__("getter", function() {});
75propertyNames = Object.getOwnPropertyNames(obj);
76propertyNames.sort();
77assertEquals(1, propertyNames.length);
78assertEquals("getter", propertyNames[0]);
79
80try {
81  Object.getOwnPropertyNames(4);
82  assertTrue(false);
83} catch (e) {
84  assertTrue(/on non-object/.test(e));
85}
86
87try {
88  Object.getOwnPropertyNames("foo");
89  assertTrue(false);
90} catch (e) {
91  assertTrue(/on non-object/.test(e));
92}
93
94try {
95  Object.getOwnPropertyNames(undefined);
96  assertTrue(false);
97} catch (e) {
98  assertTrue(/on non-object/.test(e));
99}
100
101try {
102  Object.getOwnPropertyNames(null);
103  assertTrue(false);
104} catch (e) {
105  assertTrue(/on non-object/.test(e));
106}
107