public void GetNames_returns_label_names_from_providers()
{
var firstProvider = Mock.Of <IBuildInfoLabelProvider>(
p => p.GetBuildInfoLabels() == new[] { new BuildInfoLabel("version", "1.2.3"), new BuildInfoLabel("major_version", "1") }
);
var secondProvider = Mock.Of <IBuildInfoLabelProvider>(
p => p.GetBuildInfoLabels() == new[] { new BuildInfoLabel("api_version", "4.5.6") }
);
var expected = new[] { "version", "major_version", "api_version" };
var sut = new BuildInfoLabelCollector(Mock.Of <ILogger>(),
new[] { firstProvider, secondProvider });
var actual = sut.GetNames();
CollectionAssert.AreEqual(expected, actual);
}