public void Returns_value_from_LongValueRetriever_when_passed_not_empty_string()
{
Func<string, long> func = v =>
{
if (v == "test value") return 123;
if (v == "another test value") return 456;
return 0;
};
var retriever = new NullableLongValueRetriever(func);
retriever.GetValue("test value").ShouldEqual(123);
retriever.GetValue("another test value").ShouldEqual(456);
}
public void Returns_null_when_passed_empty_string()
{
var retriever = new NullableLongValueRetriever(v => 3);
retriever.GetValue(string.Empty).ShouldBeNull();
}
public void Returns_null_when_the_value_is_null()
{
var retriever = new NullableLongValueRetriever(v => 0);
retriever.GetValue(null).ShouldBeNull();
}