Add isPlaying getter to Audio class

[stricoff92]

Hello,

I'm confused as to why isPlaying is hidden from the public api? Am I missing something? I added a getter in this PR.

Thanks

[EvandroLG]

Hey @stricoff92

Good catch! I actually thought this was already exposed as part of the public API (we have it even documented in the lib docs). Thanks for pointing it out!

To move forward with your PR, could you please update the unit tests as well? https://github.com/EvandroLG/ts-audio/blob/master/src/audio/__tests__/Audio.test.ts#L12?

[stricoff92]

Hey @stricoff92

Good catch! I actually thought this was already exposed as part of the public API (we have it even documented in the lib docs). Thanks for pointing it out!

To move forward with your PR, could you please update the unit tests as well? https://github.com/EvandroLG/ts-audio/blob/master/src/audio/__tests__/Audio.test.ts#L12?

I added tests to the audio test suite. I'm not super familiar with unit testing in JS... so let me know if you expected something different. Thanks!