public void Simplify_AddingOppositeIdentifiers_ReturnsOperatorNode()
{
Environment environment = new Environment();
environment.AddSymbol("x");
SyntaxNode root = GetExpression("-x + x", environment);
root = LeftNestedAlgebraicSimplifier.Simplify((OperatorNode)root, environment);
Assert.AreEqual("0", root.ToString());
}
public void Simplify_AddingLeftNestedReverseTermDifferentIdentifiers_ReturnsOperatorNode()
{
Environment environment = new Environment();
environment.AddSymbol("x");
environment.AddSymbol("y");
SyntaxNode root = GetExpression("x * 2 + y", environment);
root = LeftNestedAlgebraicSimplifier.Simplify((OperatorNode)root, environment);
Assert.AreEqual("x * 2 + y", root.ToString());
}
