public void Conflate_TwoWritingSystemsOneIsConflatedIntoOther_OneWritingSystemRemains()
{
RepositoryUnderTest.Set(new WritingSystemDefinition("en"));
RepositoryUnderTest.Set(new WritingSystemDefinition("de"));
RepositoryUnderTest.Conflate("en", "de");
Assert.That(RepositoryUnderTest.Contains("de"), Is.True);
Assert.That(RepositoryUnderTest.Contains("en"), Is.False);
}