Basic tests for AudioBuffer.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS sampleRate has been set correctly.
PASS length has been set correctly.
PASS duration has been set correctly.
PASS numberOfChannels has been set correctly.
PASS getChannelData(0) returns a Float32Array object.
PASS getChannelData(1) returns a Float32Array object.
PASS getChannelData(2) returns a Float32Array object.
PASS getChannelData(3) returns a Float32Array object.
PASS Exception has been thrown correctly when index is not less than numberOfChannels.
PASS buffer.gain is undefined.
PASS AudioBuffer.prototype.gain is undefined.
PASS successfullyParsed is true

TEST COMPLETE