EqualsAmongTwo returns true if first sum is equal to the second.

GreaterAmongTwo returns true if first sum is greater than second.

LessAmongTwo returns true if first sum is smaller than second.

timeToMilliseconds returns the input time as milliseconds, using the same formula used by Prometheus in order to get the same timestamp when asserting on query results.

ConcreteService represents microservice with optional ports which will be discoverable from docker with <name>:<port>.

HTTPService represents opinionated microservice with at least HTTP port that as mandatory requirement, serves metrics.