Add some more Streaming tests

[ceedubs]

I haven't included the one that I posted in the description of #677
since I'm not yet sure what the right fix for it is.

[non]

👍

[codecov-io]

Current coverage is 83.53%

Merging #678 into master will increase coverage by +0.59% as of 2443e89

@@            master    #678   diff @@
======================================
  Files          162     162       
  Stmts         2217    2217       
  Branches        74      74       
  Methods          0       0       
======================================
+ Hit           1839    1852    +13
  Partial          0       0       
+ Missed         378     365    -13

Review entire Coverage Diff as of 2443e89

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[adelbertc]

👍