public void HasAnnotation_checks_arguments() { var configuration = new EntityTypeConfiguration <object>(); Assert.Equal( Strings.ArgumentIsNullOrWhitespace("name"), Assert.Throws <ArgumentException>(() => configuration.HasAnnotation(null, null)).Message); Assert.Equal( Strings.ArgumentIsNullOrWhitespace("name"), Assert.Throws <ArgumentException>(() => configuration.HasAnnotation(" ", null)).Message); Assert.Equal( Strings.BadAnnotationName("Cheese:Pickle"), Assert.Throws <ArgumentException>(() => configuration.HasAnnotation("Cheese:Pickle", null)).Message); }