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add unit test for testing edge cases of the short string optimization

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This commit is contained in:
Kosta 2014-09-01 12:34:43 +02:00
parent 697cf407c2
commit 056d0dafe4
1 changed files with 23 additions and 0 deletions
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test/unittest/valuetest.cpp
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@ -1084,3 +1084,26 @@ TEST(Document, CrtAllocator) {
V a(kArrayType); V a(kArrayType);
a.PushBack(1, allocator); // Should not call destructor on uninitialized Value of newly allocated elements. a.PushBack(1, allocator); // Should not call destructor on uninitialized Value of newly allocated elements.
} }
static void TestShortStringOptimization(const char* str) {
const int len = (int)strlen(str);
rapidjson::Document doc;
rapidjson::Document::AllocatorType& allocator = doc.GetAllocator();
rapidjson::Value objVal(rapidjson::kObjectType);
objVal.AddMember(str, str, allocator);
EXPECT_TRUE(objVal.HasMember(str));
const rapidjson::Value& member = objVal[str];
EXPECT_EQ(member.GetStringLength(), strlen(str));
}
TEST(Value, AllocateShortString) {
TestShortStringOptimization(""); // edge case: empty string
TestShortStringOptimization("12345678"); // regular case for short strings: 8 chars
TestShortStringOptimization("12345678901"); // edge case: 11 chars in 32-bit mode (=> short string)
TestShortStringOptimization("123456789012"); // edge case: 12 chars in 32-bit mode (=> regular string)
TestShortStringOptimization("123456789012345"); // edge case: 15 chars in 64-bit mode (=> short string)
TestShortStringOptimization("1234567890123456"); // edge case: 16 chars in 64-bit mode (=> regular string)
}