public void tap_with_action_gives_back_initial_object()
{
var x = new Dictionary<string, object>();
x["Foo"] = 1;
x["Bar"] = 2;
var result = x.Tap((item) => {
int sum = (int)item["Foo"] + (int)item["Bar"];
});
Assert.Same(x, result);
Assert.Equal(1, result["Foo"]);
Assert.Equal(2, result["Bar"]);
}
public void tap_with_func_gives_back_modified_object_same_reference()
{
var x = new Dictionary<string, object>();
x["Foo"] = 1;
x["Bar"] = 2;
var result = x.Tap((item) => {
item["Foo"] = 12;
item["Bar"] = 13;
return item;
});
Assert.Same(x, result);
Assert.Equal(12, result["Foo"]);
Assert.Equal(13, result["Bar"]);
Assert.Equal(12, x["Foo"]);
Assert.Equal(13, x["Bar"]);
}