public void Simplify_OperatorChildrenAreBothNumbers_ReturnsNumberNode()
{
SyntaxNode node = GetExpression("2 + 2", new Environment());
node = OperatorSimplification.Simplify((OperatorNode)node, new Environment());
Assert.NotNull(node);
Assert.AreEqual("4", node.ToString());
}
public void Simplify_NestedAlgebraicOperator_ReturnsOperatorNode()
{
Environment environment = new Environment();
environment.AddSymbol("x");
SyntaxNode node = GetExpression("3 * x + 2 * x", environment);
node = OperatorSimplification.Simplify((OperatorNode)node, environment);
Assert.NotNull(node);
Assert.AreEqual("5 * x", node.ToString());
}
public void Simplify_OperatorChildrenAreBothTheSameIdentifier_ReturnsOperatorNode()
{
Environment environment = new Environment();
environment.AddSymbol("x");
SyntaxNode node = GetExpression("x + x", environment);
node = OperatorSimplification.Simplify((OperatorNode)node, environment);
Assert.NotNull(node);
Assert.AreEqual("2 * x", node.ToString());
}
public void Simplify_OperatorWithNumberAndFunction_ReturnsOperatorNode()
{
Environment environment = new Environment();
environment.AddSymbol("x");
environment.AddFunction("f", GetExpression("x", environment));
SyntaxNode node = GetExpression("2 + f(x)", environment);
node = OperatorSimplification.Simplify((OperatorNode)node, environment);
Assert.NotNull(node);
Assert.AreEqual("2 + f(x)", node.ToString());
}