1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5 #include "js/Symbol.h"
6 #include "jsapi-tests/tests.h"
7
BEGIN_TEST(testSymbol_New)8 BEGIN_TEST(testSymbol_New) {
9 using namespace JS;
10
11 RootedString desc(cx, nullptr);
12 RootedSymbol sym1(cx);
13 CHECK(sym1 = NewSymbol(cx, desc));
14 CHECK_NULL(GetSymbolDescription(sym1));
15 RootedValue v(cx, SymbolValue(sym1));
16 CHECK_EQUAL(JS_TypeOfValue(cx, v), JSTYPE_SYMBOL);
17
18 RootedSymbol sym2(cx);
19 CHECK(sym2 = NewSymbol(cx, desc));
20 CHECK(sym1 != sym2);
21
22 CHECK(desc = JS_NewStringCopyZ(cx, "ponies"));
23 CHECK(sym2 = NewSymbol(cx, desc));
24 CHECK_SAME(StringValue(GetSymbolDescription(sym2)), StringValue(desc));
25
26 return true;
27 }
28 END_TEST(testSymbol_New)
29
BEGIN_TEST(testSymbol_GetSymbolFor)30 BEGIN_TEST(testSymbol_GetSymbolFor) {
31 using namespace JS;
32
33 RootedString desc(cx, JS_NewStringCopyZ(cx, "ponies"));
34 CHECK(desc);
35 RootedSymbol sym1(cx);
36 CHECK(sym1 = GetSymbolFor(cx, desc));
37 CHECK_SAME(StringValue(GetSymbolDescription(sym1)), StringValue(desc));
38
39 // Calling JS::GetSymbolFor again with the same arguments produces the
40 // same Symbol.
41 RootedSymbol sym2(cx);
42 CHECK(sym2 = GetSymbolFor(cx, desc));
43 CHECK_EQUAL(sym1, sym2);
44
45 // Passing a new but equal string also produces the same Symbol.
46 CHECK(desc = JS_NewStringCopyZ(cx, "ponies"));
47 CHECK(sym2 = GetSymbolFor(cx, desc));
48 CHECK_EQUAL(sym1, sym2);
49
50 // But SymbolNew always produces a new distinct Symbol.
51 CHECK(sym2 = NewSymbol(cx, desc));
52 CHECK(sym2 != sym1);
53
54 return true;
55 }
56 END_TEST(testSymbol_GetSymbolFor)
57
BEGIN_TEST(testSymbol_GetWellKnownSymbol)58 BEGIN_TEST(testSymbol_GetWellKnownSymbol) {
59 using namespace JS;
60
61 Rooted<Symbol*> sym1(cx);
62 CHECK(sym1 = GetWellKnownSymbol(cx, SymbolCode::iterator));
63 RootedValue v(cx);
64 EVAL("Symbol.iterator", &v);
65 CHECK_SAME(v, SymbolValue(sym1));
66
67 // The description of a well-known symbol is as specified.
68 RootedString desc(cx);
69 CHECK(desc = JS_NewStringCopyZ(cx, "Symbol.iterator"));
70 CHECK_SAME(StringValue(GetSymbolDescription(sym1)), StringValue(desc));
71
72 // GetSymbolFor never returns a well-known symbol.
73 Rooted<Symbol*> sym2(cx);
74 CHECK(sym2 = GetSymbolFor(cx, desc));
75 CHECK(sym2 != sym1);
76
77 return true;
78 }
79 END_TEST(testSymbol_GetWellKnownSymbol)
80