Tests: Skip integration tests without the presence of "-integration" flag

[cristianoliveira]

We want to avoid run integration tests (tests inside tests folder) when not passed the flag -integration to go test command. go test .../. -v -integration.

Please take a look on how to implement this here:
https://siongui.github.io/2017/04/28/command-line-argument-in-golang-test/

This refers to #24

[mileswilson]

Would you be open to implementing this as an environment variable?

Using flags means you have to implement the flag in all packages if you run tests using

go test .../.

else you get flag provided but not defined: -integration
messages in your tests for packages that do not define it.

I've pushed a commit that provides this functionality through an environment variable called INTEGRATION_TEST

Let me know if you'd like me to raise a PR.

[cristianoliveira]

Hey @mileswilson sure it is. The point here is just avoiding run integration tests when it isn't required.

[cristianoliveira]

Regarding your commit, I think it is exactly what we need. Feel free to open a PR :)