public BuildNumberCalculatorTests()
 {
     var gitRepo = Substitute.For<IRepository>();
     _nextSemver = Substitute.For<INextSemverCalculator>();
     _lastTaggedReleaseFinder = Substitute.For<ILastTaggedReleaseFinder>();
     _gitHelper = Substitute.For<IGitHelper>();
     _buildServer = Substitute.For<IBuildServer>();
     _sut = new BuildNumberCalculator(_nextSemver, _lastTaggedReleaseFinder, _gitHelper, gitRepo, _buildServer);
 }