public void Does_scope_chain_pop_properly_dispose_chain_links()
{
//given
ScopeChain chain = new ScopeChain();
int cnt = 20;
for (int i = 0; i < cnt; i++)
{
chain.Push(new { Index = i });
}
//when
int[] actual = new int[cnt];
for (int i = (cnt - 1); i > -1; i--)
{
actual[i] = (int)ReflectionHelper.Expression.ReflectItem(chain.Peek(), "Index");
chain.Pop();
}
//then
int[] expected = new int[cnt];
for (int i = 0; i < cnt; i++)
{
expected[i] = i;
}
Assert.Equal(expected, actual);
}
public void Does_multi_link_scope_chain_reflect_correct_context_item()
{
//given
ScopeChain chain = new ScopeChain();
var p = new Person()
{
Name = new Name()
{
First = "Charlie", Last = "Brown"
}
};
chain.Push(p);
var p2 = new { Name = new { First = "Susie", Last = "Derkins" } };
chain.Push(p2);
var a = new Address()
{
Line1 = "111 Main St.", Line2 = "", City = "Dallas", State = "TX", Zip = "75075"
};
chain.Push(a);
var p3 = new Name {
First = "Spider", Last = "Man"
};
chain.Push(p3);
//when
var actual = ReflectionHelper.Expression.ReflectItem(chain.Peek(), "First");
//then
Assert.Equal("Spider", actual);
}
public void Does_multi_link_scope_chain_return_correct_item_on_reach_back()
{
//given
ScopeChain chain = new ScopeChain();
var p = new Person()
{
Name = new Name()
{
First = "Charlie", Last = "Brown"
}
};
chain.Push(p);
var p2 = new { Name = new { First = "Susie", Last = "Derkins" } };
chain.Push(p2);
var a = new Address()
{
Line1 = "111 Main St.", Line2 = "", City = "Dallas", State = "TX", Zip = "75075"
};
chain.Push(a);
var p3 = new Name {
First = "Spider", Last = "Man"
};
chain.Push(p3);
var p4 = new Name {
First = "Luke", Last = "Skywalker"
};
chain.Push(p4);
var p5 = new { Name = new { First = "Peter", Last = "Pan" } };
chain.Push(p5);
var p6 = new Name {
First = "Duke", Last = "Caboom"
};
chain.Push(p6);
var p7 = new Name {
First = "Buzz", Last = "Lightyear"
};
chain.Push(p7);
//when
var actual = ReflectionHelper.Expression.ReflectItem(chain.Peek(5), "City");
//then
Assert.Equal("Dallas", actual);
}
public void Does_overreaching_back_into_scope_chain_throw_argument_exception()
{
//given
var data1 = new { Name = new { First = "Charlie", Last = "Brown" } };
var data2 = new { Name = new { First = "Super", Last = "Man" } };
ScopeChain chain = new ScopeChain();
chain.Push(data1);
chain.Push(data2);
//when
Exception ex = Assert.Throws <ArgumentException>(() => chain.Peek(2));
//then
Assert.Equal("value must be < ScopeChain.Depth (Parameter 'back')", ex.Message);
}