public void NegateFirstNumber()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("-7");
Assert.Equal(-7, func(0));
}
public void Parameterization()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("x^2 + 7x");
Assert.Equal(8, func(1));
}
public void Power()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("10^2");
Assert.Equal(100, func(0), 3);
}
public void Functions()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("sin(pi)");
Assert.Equal(0, func(0), 10);
}
public void Variables()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("x + 5");
Assert.Equal(6, func(1));
}
public void Multiply()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("20*5");
Assert.Equal(100, func(0), 3);
}
public void Divide()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("20/5");
Assert.Equal(4, func(0), 3);
}
public void Subtract()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("1-1");
Assert.Equal(0, func(0), 3);
}
public void AddANegative()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("3 + -1");
Assert.Equal(2, func(0));
}
public void Add()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("1+1");
Assert.Equal(2, func(0), 3);
}
public void NegateParameter()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("-x");
Assert.Equal(-1, func(1));
}
public void SubExpressions()
{
var parser = new MathEquationParser();
var func = parser.ParseFunction("(10^2 - 10)/9");
Assert.Equal(10, func(0), 3);
var func2Groups = parser.ParseFunction("(2+5) - (3+6)");
Assert.Equal(func2Groups(0), -2, 3);
}
public void FunctionWithInvalidVariable()
{
var parser = new MathEquationParser();
Assert.Throws <ArgumentException>(() => parser.ParseFunction("1 + y"));
}
