public void UnregisterNestedVariable()
{
VariableSet vSet = new VariableSet();
VariableSet childVset = new VariableSet();
Variable inScope = new Variable("Horace", OperandType.String, "I am hungry");
vSet.RegisterVariable(OperandType.VSet, "child", childVset);
childVset.RegisterVariable(inScope);
Assert.IsTrue(vSet.GetVariable("child.Horace") == inScope);
vSet.UnregisterVariable("child.Horace");
try
{
var variable = vSet.GetVariable("Horace");
Assert.Fail("Did not throw expected exception");
}
catch (KeyNotFoundException knfex)
{
}
catch
{
Assert.Fail("Did not throw expected exception");
}
}
public void UnregisterMissingVariable()
{
VariableSet vSet = new VariableSet();
Variable inScope = new Variable("Horace", OperandType.String, "I am hungry");
vSet.RegisterVariable(inScope);
Assert.IsTrue(vSet.GetVariable("Horace") == inScope);
try
{
vSet.UnregisterVariable(inScope);
}
catch (KeyNotFoundException knfex)
{
}
}
private void TestRegister(VariableSet vSet, OperandType type, object initialValue, object expectedValue, bool expectedSucceed)
{
try
{
var variable = vSet.RegisterVariable(type, "testName", initialValue);
Assert.AreEqual(true, expectedSucceed);
Assert.AreEqual(expectedValue, vSet.GetVariable("testName").Value);
vSet.UnregisterVariable(variable);
}
catch (InvalidCastException ice)
{
Assert.AreEqual(false, expectedSucceed);
}
catch (NullReferenceException nre)
{
Assert.AreEqual(false, expectedSucceed);
}
}
public void UnregisterWrongVariable()
{
VariableSet vSet = new VariableSet();
Variable inScope = new Variable("Horace", OperandType.String, "I am hungry");
Variable outScope = new Variable("Horace", OperandType.String, "I am not hungry");
vSet.RegisterVariable(inScope);
try
{
vSet.UnregisterVariable(outScope);
Assert.Fail("Expected exception was not thrown");
}
catch (ValueNotFoundException vnfex)
{
}
catch
{
Assert.Fail("Expected exception was not thrown");
}
}