Spying to Sense Using a Member Variable
We decide we want to first ensure that the code properly calculates totalSeconds, a value sent to the descriptor. (We might not need to add this test if we’re not going to make changes to writeSnippet. The test exists here to demonstrate a specific technique.)
| wav/14/WavReaderTest.cpp | |
| | TEST_GROUP(WavReader_WriteSnippet) { |
| | WavReader reader{"",""}; |
| | istringstream input{""}; |
| | FormatSubchunk formatSubchunk; |
| | ostringstream output; |
| | DataChunk dataChunk; |
| | char* data; |
| | uint32_t TwoBytesWorthOfBits{2 * 8}; |
| | |
| | void setup() override { |
| | data = new char[4]; |
| | } |
| | |
| | void teardown() override { |
| | delete[] data; |
| | } |
| | }; |
| | |
| | TEST(WavReader_WriteSnippet, UpdatesTotalSeconds) { |
| | dataChunk.length ... |
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