Yehuda Katz 21ad06b1e1 Remove unwraps and clean up playground ... The original intent of this patch was to remove more unwraps to reduce panics. I then lost a ton of time to the fact that the playground isn't in a temp directory (because of permissions issues on Windows). This commit improves the test facilities to: - use a tempdir for the playground - change the playground API so you instantiate it with a block that encloses the lifetime of the tempdir - the block is called with a `dirs` argument that has `dirs.test()` and other important directories that we were computing by hand all the time - the block is also called with a `playground` argument that you can use to construct files (it's the same `Playground` as before) - change the nu! and nu_error! macros to produce output instead of taking a variable binding - change the nu! and nu_error! macros to do the cwd() transformation internally - change the nu! and nu_error! macros to take varargs at the end that get interpolated into the running command I didn't manage to finish porting all of the tests, so a bunch of tests are currently commented out. That will need to change before we land this patch.		2019-08-28 10:01:16 -07:00
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mod.rs	Remove unwraps and clean up playground	2019-08-28 10:01:16 -07:00