public void Optional_Bind_WithoutStringValue()
{
var optional = new Optional <string>();
Assert.False(optional.HasValue);
var newOptional = optional.Bind <string>(some => "new_" + some);
Assert.Equal(string.Empty, newOptional.GetValueOrDefault(string.Empty));
}
public void Optional_Bind_WithStringValue2()
{
Optional <string> optional = "text";
Assert.True(optional.HasValue);
var newOptional = optional.Bind <string>(some => "new_" + some).Bind <string>(some => "new_" + some);
Assert.Equal("new_new_text", newOptional.GetValueOrDefault(string.Empty));
}
public void Optional_Bind_WithoutClassValue()
{
var optional = new Optional <TestClass>();
Assert.False(optional.HasValue);
var newOptional = optional.Bind <TestClass>(some => new TestClass {
TestMessage = "new_" + some.TestMessage
});
Assert.Null(newOptional.GetValueOrDefault(null));
}