public void Throw_If_Null_Key_Is_Passed()
{
// arrange
var sut = new DefaultConverterCache();
Action mightThrow = () => sut.GetOrAdd <object>(null, () => 1);
// act
// assert
mightThrow.Should().Throw <ArgumentNullException>();
}
public void Return_True_Only_If_Item_Is_In_Map()
{
// arrange
var sut = new DefaultConverterCache();
var key = new StringBuilder(100);
var val = new StringBuilder(100);
// act
var a = sut.GetOrAdd(key, () => val, () => val.Append("setup!"));
// assert
sut.Contains(key).Should().BeTrue();
}
public void Return_The_Same_Object_When_Requested_Twice()
{
// arrange
var sut = new DefaultConverterCache();
var key = new StringBuilder(100);
var val = new StringBuilder(100);
// act
var a = sut.GetOrAdd(key, () => val, () => val.Append("setup!"));
var b = sut.GetOrAdd(key, () => val, () => val.Append("setup 2!"));
// assert
a.Should().BeSameAs(b);
a.ToString().Should().Be("setup!");
}
