Repository maintenance: CI and testing improvements

[xBlaz3kx]

Proposed changes

• Added local docker compose for unit and integration testing
• Improved the CI pipeline - now has jobs for each test type

Types of changes

What types of changes does your code introduce?
Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of
them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before
merging your code.

• I have read the CONTRIBUTING doc
• I have signed the CLA
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)
• Any dependent changes have been merged and published in downstream modules

Further comments

[lorenzodonini]

Local and dockerized setup work differently (different networks), so we need to parametrize the test instance and toxiproxy with env variables accordingly. I put this code together that would need to be added to the network_test.go file to work for both environments:

type proxyConfig struct {
	ToxiProxyHost     string `env:"TOXIPROXY_HOST" envDefault:"localhost"`
	ToxiProxyPort     int    `env:"TOXIPROXY_PORT" envDefault:"8474"`
	ProxyOcppListener string `env:"PROXY_OCPP_LISTENER" envDefault:"localhost:8886"`
	ProxyOcppUpstream string `env:"PROXY_OCPP_UPSTREAM" envDefault:"localhost:8887"`
}

and:

func (s *NetworkTestSuite) SetupSuite() {
	var cfg proxyConfig
	err := env.Parse(&cfg)
	if err != nil {
		panic(err)
	}
	endpoint := fmt.Sprintf("%v:%v", cfg.ToxiProxyHost, cfg.ToxiProxyPort)
	client := toxiproxy.NewClient(endpoint)
        // .....
        p, err := client.CreateProxy("ocpp", cfg.ProxyOcppListener, cfg.ProxyOcppUpstream)
	require.NoError(s.T(), err)
	s.proxy = p
}

This needs a new support lib:

go get github.com/caarlos0/env/v11

[lorenzodonini]

@xBlaz3kx Thanks for the PR. If it's too many change requests to handle, do you want me to take the branch over?

[xBlaz3kx]

@xBlaz3kx Thanks for the PR. If it's too many change requests to handle, do you want me to take the branch over?

No worries, I will take some time and apply suggested changes.

[xBlaz3kx]

I fixed the tests and also improved the testing workflow a bit:

• Removed unnecessary waiting and go installation, since the tests are run via Docker
• Added SHA as postfix to artifacts to uniquely identify coverage files for each workflow run

Not sure why coveralls is failing though.