chore(test-utils): Update tests to use async device creation

[ibgreen]

For #

Background

• For convenience the webglTestDevice export was created sync. This meant that Khronos WebGL tool were not dynamically loaded, which makes it harder to debug webgl errors.

Change List

• Update all tests to use async device creation.
• Remove sync test exports

Notes

• Keep but deprecate the sync getTestDevice() and webglDevice exports from @luma.gl/test-utils for now until deck.gl has moved to async tests.

[felixpalmer]

A lot of repetition here. Would it be worth defining a helper function webGlTest() that passed in the created context?

webGlTest('WebGLState#withGLParameters empty parameters object', async (t, webglDevice) => {...})

[ibgreen]

A lot of repetition here. Would it be worth defining a helper function webGlTest() that passed in the created context?

webGlTest('WebGLState#withGLParameters empty parameters object', async (t, webglDevice) => {...})

That could be a good idea.

• We'll be moving most of the WebGL specific tests (not this file of course) to multi-platform, so we will want to call getTestDevices() instead of getWebGLTestDevice(), but I suppose we could supply a testDevices param.
• I'd like to move to jest and I wonder if there is not a beforeTest() type method that could wait for the device and store it in a global var.
• I tend to be a bit wary of wrapping things, it makes the code base a bit less clear.

[felixpalmer]

One further disadvantage of the wrapper is that test.only etc stops working