CheckConnection connects to the endpoint until success 100 times with delay or fails.

GetDatabaseConfig returns DatabaseConfig for integration tests configured with env variables or default values used for tests/test.py.

GetFreePortForListener open new connection on free port.

GetSourceRootDirectory expects that tests started from root of source code and accessible tests/ssl folder, otherwise try to walk through parents folders and check that it's root of source until find or call t.Fatal It useful because `go test ./...` change working directory recursively to each packages when it compile tests.

TestWithTLS returns true if integration tests should run with TLS configuration.

DatabaseConfig stores configuration for test database.