Basic testing for AudioContext.baseLatency. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS context.sampleRate is expectedSampleRate PASS context.baseLatency == (renderQuantum / expectedSampleRate) || context.baseLatency == (2 * (renderQuantum / expectedSampleRate)) is true PASS context.sampleRate is expectedSampleRate PASS context.baseLatency == (renderQuantum / expectedSampleRate) || context.baseLatency == (2 * (renderQuantum / expectedSampleRate)) is true PASS context.sampleRate is expectedSampleRate PASS context.baseLatency == (renderQuantum / expectedSampleRate) || context.baseLatency == (2 * (renderQuantum / expectedSampleRate)) is true PASS successfullyParsed is true TEST COMPLETE