public void Just_Bind_ReturnsNothing()
{
var just = new Just<string>("4");
var just2 = just.Bind<string>(a => new Nothing<string>());
var result = just2.FMap<int>(a => Int32.Parse(a));
Assert.IsInstanceOf<Nothing<int>>(result);
}
public void Just_Bind_ReturnsNothing()
{
var just = new Just <string>("4");
var just2 = just.Bind <string>(a => new Nothing <string>());
var result = just2.FMap <int>(a => Int32.Parse(a));
Assert.IsInstanceOf <Nothing <int> >(result);
}
public void Just_Bind_ReturnsJust()
{
var just = new Just<string>("4");
var just2 = just.Bind<string>(a => new Just<string>(a + "2"));
var result = just2.FMap<int>(a => Int32.Parse(a));
Assert.IsInstanceOf<Just<int>>(result);
var actualResult = result as Just<int>;
Assert.AreEqual(42, actualResult.Value);
}
public void Just_Bind_ReturnsJust()
{
var just = new Just <string>("4");
var just2 = just.Bind <string>(a => new Just <string>(a + "2"));
var result = just2.FMap <int>(a => Int32.Parse(a));
Assert.IsInstanceOf <Just <int> >(result);
var actualResult = result as Just <int>;
Assert.AreEqual(42, actualResult.Value);
}