public void GetStandardValues_NoValuesFactoryProvided_ReturnsEmptyCollection()
{
var converter1 = new StandardValuesStringConverter(null as Func <string[]>);
converter1.GetStandardValues().Should().BeEmpty();
var converter2 = new StandardValuesStringConverter(null as IEnumerable <string>);
converter2.GetStandardValues().Should().BeEmpty();
}
public void GetStandardValues_UsesDeferredExecution()
{
var divisor = 1;
var values = Enumerable.Range(1, 10).Where(i => i % divisor == 0).Select(i => i.ToString());
var converter = new StandardValuesStringConverter(values);
divisor = 2;
converter.GetStandardValues().Should().ContainInOrder(new string[] { "2", "4", "6", "8", "10" });
divisor = 3;
converter.GetStandardValues().Should().ContainInOrder(new string[] { "3", "6", "9" });
}
public void GetStandardValues_UsesDeferredExecution()
{
int divisor = 1;
var values = Enumerable.Range(1, 10).Where(i => i % divisor == 0).Select(i => i.ToString());
var converter = new StandardValuesStringConverter(values);
divisor = 2;
Assert.That(converter.GetStandardValues(), Is.EquivalentTo(new[] { "2", "4", "6", "8", "10" }));
divisor = 3;
Assert.That(converter.GetStandardValues(), Is.EquivalentTo(new[] { "3", "6", "9" }));
}
