Basic tests for AnalyserNode.

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

PASS AnalyserNode has one input.
PASS AnalyserNode has one output.
PASS minDecibels default value is -100.
PASS maxDecibels default value is -30.
PASS smoothingTimeConstant default value is 0.8.
PASS minDecibels value is set to -50.333333333333336.
PASS maxDecibels value is set to -40.333333333333336.
PASS successfullyParsed is true

TEST COMPLETE