public void TestDefaultIfLeft()
{
{
var instance = new Either <string, int>(1);
var result = instance.DefaultIfLeft();
result.AssertRight(1);
}
{
var instance = new Either <string, int>("test");
var result = instance.DefaultIfLeft();
result.AssertRight(default(int));
}
{
var instance = default(Either <string, int>);
Assert.Throws <ArgumentNullException>(() => instance.DefaultIfLeft());
}
{
var instance = new Either <int, string>(1);
var result = instance.DefaultIfLeft("test");
result.AssertRight("test");
}
{
var instance = new Either <int, string>("test");
var result = instance.DefaultIfLeft("testing");
result.AssertRight("test");
}
{
var instance = default(Either <int, string>);
Assert.Throws <ArgumentNullException>(() => instance.DefaultIfLeft("test"));
Assert.Throws <ArgumentNullException>(() => instance.DefaultIfLeft(null));
Assert.Throws <ArgumentNullException>(() => new Either <int, string>("test").DefaultIfLeft(null));
}
}