Fixes #239: fixed audio related test cases that interact with StateFragment

[jamesxu0]

Explanation

Fixes #239: Fixed audio related tests cases that interact with StateFragment which was recently changed in PR #238.

Checklist

• The PR title starts with "Fix #bugnum: ", followed by a short, clear summary of the changes. (If this PR fixes part of an issue, prefix the title with "Fix part of #bugnum: ...".)
• The PR explanation includes the words "Fixes #bugnum: ..." (or "Fixes part of #bugnum" if the PR only partially fixes an issue).
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[rt4914]

@jamesxu0

Though all the libraries are added properly, I am getting error in AudioFragmentTest:

Mainly in line 18: import kotlinx.coroutines.test.TestCoroutineDispatcher

It maybe some Android Studio issue but not sure yet, can you check this on your machine?

[jamesxu0]

@rt4914 I spoke with @BenHenning earlier today about this. This test should be built with Robolectric and use the dependencies in testImplementation. For some reason, gradle tries to build this test when running other espresso tests. Ben said this won't be a problem when we switch to Bazel. I guess for now commenting out the test will work.

[BenHenning]

Thanks @jamesxu0. I'm slightly confused about the new argument being introduced in StateFragment, but otherwise the PR LGTM!

[BenHenning]

Thanks @jamesxu0!