public void EqualsComparesConstraints()
{
PatternGroup group1 = new PatternGroup();
PatternGroup group2 = new PatternGroup();
PatternGroup group3 = new PatternGroup();
group1.AddConstraint(new Constraint(new VariableExpression(new Variable("var"))));
group2.AddConstraint(new Constraint(new VariableExpression(new Variable("var"))));
group3.AddConstraint(new Constraint(new VariableExpression(new Variable("other"))));
Assert.IsTrue(group1.Equals(group2), "PatternGroup1 should equal group2");
Assert.IsTrue(!group1.Equals(group3), "PatternGroup1 should not equal group3");
}
public void GetHashCodeUsesConstraints()
{
PatternGroup group1 = new PatternGroup();
PatternGroup group2 = new PatternGroup();
PatternGroup group3 = new PatternGroup();
group1.AddConstraint(new Constraint(new VariableExpression(new Variable("var"))));
group2.AddConstraint(new Constraint(new VariableExpression(new Variable("var"))));
group3.AddConstraint(new Constraint(new VariableExpression(new Variable("other"))));
Assert.IsTrue(group1.GetHashCode() == group2.GetHashCode(), "PatternGroup1 should have same hash code as group2");
Assert.IsTrue(group1.GetHashCode() != group3.GetHashCode(), "PatternGroup1 should not have same hash code as group3");
}
private void ParseFilter(QueryTokenizer tokenizer, PatternGroup group)
{
while (tokenizer.MoveNext())
{
switch (tokenizer.Type)
{
case QueryTokenizer.TokenType.BeginGroup:
break;
case QueryTokenizer.TokenType.EndGroup:
return;
case QueryTokenizer.TokenType.Variable:
Constraint constraint = new Constraint(new VariableExpression(new Variable(tokenizer.TokenText)));
group.AddConstraint(constraint);
break;
}
}
}