public void TryGetValue_Nested_Scope_Value_Overrides_Parent( )
{
const string symbolName = "Global1";
var stack = new ScopeStack <int> {
[symbolName] = 1
};
using (stack.EnterScope( ))
{
stack[symbolName] = 2;
Assert.IsTrue(stack.TryGetValue(symbolName, out int value));
Assert.AreEqual(2, value);
using (stack.EnterScope( ))
{
stack[symbolName] = 3;
Assert.IsTrue(stack.TryGetValue(symbolName, out int nestedValue));
Assert.AreEqual(3, nestedValue);
}
Assert.IsTrue(stack.TryGetValue(symbolName, out int valueAfterExitNested));
Assert.AreEqual(2, valueAfterExitNested);
}
Assert.IsTrue(stack.TryGetValue(symbolName, out int globalValue));
Assert.AreEqual(1, globalValue);
}
public void EnterScope_On_New_Stack_has_Depth_of_2( )
{
var stack = new ScopeStack <int>( );
var result = stack.EnterScope( );
Assert.IsNotNull(result);
using ( result )
{
Assert.AreEqual(2, stack.Depth);
}
Assert.AreEqual(1, stack.Depth);
}