public void FindingPluralizersAddWorks() { var collection = new FindingPluralizerCollection(new DictionaryPluralizerCollection()); Pluralizer pluralizer; var first = new Mock <Pluralizer>().Object; Assert.True(collection.TryAddPluralizer("pl_PL", first)); Assert.True(collection.TryGetPluralizer("pl-PL", out pluralizer)); Assert.Equal(pluralizer, first); }