Add unit tests for CLI and Auth packages

[amanycodes]

Added unit and integration tests for cli focusing to:

• Test parseSources with valid, invalid an empty data-source files.
• Mock rules.GetRules and auth.Login using monkey-patching in InitAndExecute to confirm option parsing.

Since there was no dependency injection I couldn't use interfaces for rules.GetRules and auth.Login, so I wrote some package-level function variables for both helping me directly mock them in the test file and isolate them from other (network, fs, etc) dependencies.

Also. while writing tests I saw that the current datasrc.Validate() and datasrc.Parsefile() are more permissive and do not currently return errors for cases like: missing source key (considers file just with version: 1.0) and invalid source type (doesn't check the type field)

I'll add these checks to the datasrc package once these are confirmed.

Looking forward for feedback and review! Thanks!

Partially closes: #48
cc @tonymeehan

[amanycodes]

Also cc: @aleksmaus @scunningham

[tonymeehan]

Definitely a matter of preference, but let's leave these function calls referencing the package instead of using the helper functions. Prefer to see dependencies immediately as we read the code, so seeing auth.X() or rules.Y() is helpful.

[amanycodes]

Definitely a matter of preference, but let's leave these function calls referencing the package instead of using the helper functions. Prefer to see dependencies immediately as we read the code, so seeing auth.X() or rules.Y() is helpful.

I agree with the explicitness being more readable! But actually when I started the tests for initAndExecute I couldn't do direct calls to auth.Login and rules.GetRules since that was then depending on reaching to networks and I was having trouble as they were requiring complex setup. I would love your feedback on how to do this without the variable definition. Thanks!

[tonymeehan]

Ah that makes sense. I missed you were mocking them in the tests. All good. Can you leave comments above each call just noting why we're doing this? and note the original call in the comment?

[tonymeehan]

Looks good. Please fix up the function name helpers in cli.go and then we'll merge!

[amanycodes]

Added unit and integration tests for auth to:

• Validate emailClaim with valid, invalid, malformed and missing JWT segments.
• Unit test checkLocalToken with expired token, malformed token, token signed with wrong key, token doesn't exists.
• Login using Localtoken and complete flow.

[amanycodes]

@tonymeehan The changes are getting large, should I raise another one for the upcoming tests?

[tonymeehan]

@tonymeehan The changes are getting large, should I raise another one for the upcoming tests?

Good idea. Let's do that. This is looking good, though. Merging now. Nice work improving the coverage!