public void Generates_correct_sequence_test()
{
var items = new[] { "Test - 1", "Test - 2", "Test - 3" };
Assert.Equal("Test", UniqueItemGenerator.GetNextUniqueItem(items, "Test"));
items = new[] { "Test", "Test - 1", "Test - 4", "Test - 5" };
Assert.Equal("Test - 2", UniqueItemGenerator.GetNextUniqueItem(items, "Test"));
}
public void Ctor_parameter_validations_test()
{
Assert.Throws <ArgumentNullException>(() => UniqueItemGenerator.GetNextUniqueItem(null, "Test"));
Assert.Throws <ArgumentNullException>(() =>
UniqueItemGenerator.GetNextUniqueItem(Enumerable.Empty <string>(), null));
Assert.Throws <ArgumentNullException>(() =>
UniqueItemGenerator.GetNextUniqueItem(Enumerable.Empty <string>(), "Test", null,
StringComparison.OrdinalIgnoreCase));
}
public void Special_collection_size_test()
{
Assert.Equal("Test", UniqueItemGenerator.GetNextUniqueItem(Enumerable.Empty <string>(), "Test"));
var items = new[] { "One", "Two", "Three" };
Assert.Equal("Test", UniqueItemGenerator.GetNextUniqueItem(items, "Test"));
items = new[] { "One", "Two", "Test123", "Three" };
Assert.Equal("Test", UniqueItemGenerator.GetNextUniqueItem(items, "Test"));
}