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Bug 1287246 (Part 4) - Make the data checking in TestStreamingLexer more discerning. r=njn

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This commit is contained in:
Seth Fowler 2016-07-15 23:21:20 -07:00
parent d2fa2b335c
commit fabd6521fe
1 changed files with 15 additions and 12 deletions
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27
image/test/gtest/TestStreamingLexer.cpp
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@ -19,12 +19,15 @@ enum class TestState
};
void
CheckLexedData(const char* aData, size_t aLength, size_t aExpectedLength)
CheckLexedData(const char* aData,
size_t aLength,
size_t aOffset,
size_t aExpectedLength)
{
EXPECT_TRUE(aLength == aExpectedLength);
for (size_t i = 0; i < aLength; ++i) {
EXPECT_EQ(aData[i], char((i % 3) + 1));
EXPECT_EQ(aData[i], char(aOffset + i + 1));
}
}
@ -33,13 +36,13 @@ DoLex(TestState aState, const char* aData, size_t aLength)
{
switch (aState) {
case TestState::ONE:
CheckLexedData(aData, aLength, 3);
CheckLexedData(aData, aLength, 0, 3);
return Transition::To(TestState::TWO, 3);
case TestState::TWO:
CheckLexedData(aData, aLength, 3);
CheckLexedData(aData, aLength, 3, 3);
return Transition::To(TestState::THREE, 3);
case TestState::THREE:
CheckLexedData(aData, aLength, 3);
CheckLexedData(aData, aLength, 6, 3);
return Transition::TerminateSuccess();
default:
MOZ_CRASH("Unexpected or unhandled TestState");
@ -52,17 +55,17 @@ DoLexWithUnbuffered(TestState aState, const char* aData, size_t aLength,
{
switch (aState) {
case TestState::ONE:
CheckLexedData(aData, aLength, 3);
CheckLexedData(aData, aLength, 0, 3);
return Transition::ToUnbuffered(TestState::TWO, TestState::UNBUFFERED, 3);
case TestState::UNBUFFERED:
EXPECT_TRUE(aLength <= 3);
EXPECT_TRUE(aUnbufferedVector.append(aData, aLength));
return Transition::ContinueUnbuffered(TestState::UNBUFFERED);
case TestState::TWO:
CheckLexedData(aUnbufferedVector.begin(), aUnbufferedVector.length(), 3);
CheckLexedData(aUnbufferedVector.begin(), aUnbufferedVector.length(), 3, 3);
return Transition::To(TestState::THREE, 3);
case TestState::THREE:
CheckLexedData(aData, aLength, 3);
CheckLexedData(aData, aLength, 6, 3);
return Transition::TerminateSuccess();
default:
MOZ_CRASH("Unexpected or unhandled TestState");
@ -74,7 +77,7 @@ DoLexWithUnbufferedTerminate(TestState aState, const char* aData, size_t aLength
{
switch (aState) {
case TestState::ONE:
CheckLexedData(aData, aLength, 3);
CheckLexedData(aData, aLength, 0, 3);
return Transition::ToUnbuffered(TestState::TWO, TestState::UNBUFFERED, 3);
case TestState::UNBUFFERED:
return Transition::TerminateSuccess();
@ -94,7 +97,7 @@ DoLexWithZeroLengthStates(TestState aState, const char* aData, size_t aLength)
EXPECT_TRUE(aLength == 0);
return Transition::To(TestState::THREE, 9);
case TestState::THREE:
CheckLexedData(aData, aLength, 9);
CheckLexedData(aData, aLength, 0, 9);
return Transition::TerminateSuccess();
default:
MOZ_CRASH("Unexpected or unhandled TestState");
@ -114,7 +117,7 @@ DoLexWithZeroLengthStatesUnbuffered(TestState aState,
EXPECT_TRUE(aLength == 0);
return Transition::To(TestState::THREE, 9);
case TestState::THREE:
CheckLexedData(aData, aLength, 9);
CheckLexedData(aData, aLength, 0, 9);
return Transition::TerminateSuccess();
case TestState::UNBUFFERED:
ADD_FAILURE() << "Should not enter zero-length unbuffered state";
@ -137,7 +140,7 @@ public:
protected:
AutoInitializeImageLib mInit;
const char mData[9] { 1, 2, 3, 1, 2, 3, 1, 2, 3 };
const char mData[9] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
StreamingLexer<TestState> mLexer;
RefPtr<SourceBuffer> mSourceBuffer;
SourceBufferIterator mIterator;