1 // Copyright 2013 the V8 project authors. All rights reserved.
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3 // modification, are permitted provided that the following conditions are
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26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28 // Check that we can traverse very deep stacks of ConsStrings using
29 // StringCharacterStram. Check that Get(int) works on very deep stacks
30 // of ConsStrings. These operations may not be very fast, but they
31 // should be possible without getting errors due to too deep recursion.
32
33 #include "src/execution/isolate.h"
34 #include "src/heap/factory.h"
35 #include "src/objects/name-inl.h"
36 #include "src/utils/ostreams.h"
37 #include "src/objects/objects.h"
38 #include "test/cctest/cctest.h"
39
40 namespace v8 {
41 namespace internal {
42
TEST(Create)43 TEST(Create) {
44 CcTest::InitializeVM();
45 Isolate* isolate = CcTest::i_isolate();
46 HandleScope scope(isolate);
47
48 const int kNumSymbols = 30;
49 Handle<Symbol> symbols[kNumSymbols];
50
51 StdoutStream os;
52 for (int i = 0; i < kNumSymbols; ++i) {
53 symbols[i] = isolate->factory()->NewSymbol();
54 CHECK(symbols[i]->IsName());
55 CHECK(symbols[i]->IsSymbol());
56 CHECK(symbols[i]->HasHashCode());
57 CHECK(symbols[i]->IsUniqueName());
58 CHECK_GT(symbols[i]->hash(), 0u);
59 os << Brief(*symbols[i]) << "\n";
60 #if OBJECT_PRINT
61 symbols[i]->Print(os);
62 #endif
63 #if VERIFY_HEAP
64 symbols[i]->ObjectVerify(isolate);
65 #endif
66 }
67
68 CcTest::CollectGarbage(i::NEW_SPACE);
69 CcTest::CollectAllGarbage();
70
71 // All symbols should be distinct.
72 for (int i = 0; i < kNumSymbols; ++i) {
73 CHECK(symbols[i]->SameValue(*symbols[i]));
74 for (int j = i + 1; j < kNumSymbols; ++j) {
75 CHECK(!symbols[i]->SameValue(*symbols[j]));
76 }
77 }
78 }
79
80 } // namespace internal
81 } // namespace v8
82