public void TEST_003( )
{
var expression = "(2^3)^2"; // => 8 ^ 2 => 64
var expressionEngine = new ExpressionEngine();
Assert.AreEqual(64, expressionEngine.Evaluate(expression));
}
public void TEST_005( )
{
var expression = "2^3!^2"; //=> 2^( (3*2) ^ 2 ) => 2^(6^2) => 2^36
var expressionEngine = new ExpressionEngine();
Assert.AreEqual(68719476736, expressionEngine.Evaluate(expression));
}
public void TEST_004( )
{
var expression = "2^3^2"; // => 2^(3^2) => 2^9 => 512 should be same value as test #2
var expressionEngine = new ExpressionEngine();
Assert.AreEqual(512, expressionEngine.Evaluate(expression));
}
public void TEST_006( )
{
var expression = "(2^3!)^2";
var expressionEngine = new ExpressionEngine();
Assert.AreEqual(4096, expressionEngine.Evaluate(expression));
}
public void TEST_001( )
{
var expression = "2^3";
var expressionEngine = new ExpressionEngine();
Assert.AreEqual(8, expressionEngine.Evaluate(expression));
}
public void Not_A_Valid_Expression( )
{
var expression = "(1 + 2))";
var evalEngine = new ExpressionEngine();
Assert.AreEqual(3, evalEngine.Evaluate(expression));
}
public void TEST_002( )
{
var expression = "2^(3^2)"; // => 2^9 => 512
var expressionEngine = new ExpressionEngine();
Assert.AreEqual(512, expressionEngine.Evaluate(expression));
}
public void Test_001( )
{
var expression = "5!";
var evalEngine = new ExpressionEngine();
Assert.AreEqual(120, evalEngine.Evaluate(expression));
}
public void FP_Test_001( )
{
var expression = "1 + 1e5";
var evalEngine = new ExpressionEngine();
Assert.AreEqual(100001, evalEngine.Evaluate(expression));
}
public void SubExpression_Test_001()
{
var expression = "3 * (2 + 1)";
var evalEngine = new ExpressionEngine();
Assert.AreEqual(9, evalEngine.Evaluate(expression));
}
public void Negate_Test( )
{
var expression = "-3 * (2 + 1)";
var evalEngine = new ExpressionEngine();
Assert.AreEqual(-9, evalEngine.Evaluate(expression));
}
public void EvaluateExponent5()
{
var expression = "2^3!^2";
var ee = new ExpressionEngine();
var result = ee.Evaluate(expression);
Assert.AreEqual(68719476736, result);
}
public void EvaluateExponent1()
{
var expression = "2^3";
var ee = new ExpressionEngine();
var result = ee.Evaluate(expression);
Assert.AreEqual(8, result);
}
public void EvaluateInvalidTest()
{
var expression = "(1 + 2))";
var ee = new ExpressionEngine();
var result = ee.Evaluate(expression);
Assert.AreEqual(3, result);
}
public void EvaluateDecimal()
{
var expression = "1 + 1e5";
var ee = new ExpressionEngine();
var result = ee.Evaluate(expression);
Assert.AreEqual(100001, result);
}
public void EvaluateSubExpressions()
{
var expression = "3 * (2 + 1)";
var ee = new ExpressionEngine();
var result = ee.Evaluate(expression);
Assert.AreEqual(9, result);
}
public void EvaluateNegation()
{
var expression = "-3 * (2 + 1)";
var ee = new ExpressionEngine();
var result = ee.Evaluate(expression);
Assert.AreEqual(-9, result);
}
public void EvaluateTest()
{
var expression = "1 + 2 * 3";
var ee = new ExpressionEngine();
var result = ee.Evaluate(expression);
Assert.AreEqual(7, result);
}
public void EvaluateExponent6()
{
var expression = "(2^3!)^2";
var ee = new ExpressionEngine();
var result = ee.Evaluate(expression);
Assert.AreEqual(4096, result);
}
public void EvaluateFactorial1()
{
var expression = "5!";
var ee = new ExpressionEngine();
var result = ee.Evaluate(expression);
Assert.AreEqual(120, result);
}
public void ParseTest_004()
{
var expression = "2 * x * y";
var variables = new { x = 5, y = 10 };
var ee = new ExpressionEngine( );
var result = ee.Evaluate(expression, variables);
Assert.AreEqual(100, result);
}
public void Test_002( )
{
var expression = "2x + y";
var variables = new { x = 5, y = 10 };
var ee = new ExpressionEngine( );
var result = ee.Evaluate(expression, variables);
Assert.AreEqual(20, result);
}
public void Test0()
{
var expression = "2 x";
var variables = new { x = 5 };
var ee = new ExpressionEngine();
var result = ee.Evaluate(expression, variables);
Assert.AreEqual(10, result);
}
private void Evaluate(object obj)
{
try {
CurrentValue += Parentheses;
double answer = ExpressionEngine.Evaluate(currentValue);
DisplayBar = DisplayValue + " =";
// CurrentValue = Math.Round(answer, 8).ToString(CultureInfo.GetCultureInfo("en-US"));
lastAnswer = string.Format(CultureInfo.GetCultureInfo("en-US"), "{0:0.########}", answer);
CurrentValue = lastAnswer;
} catch (Exception) {
CurrentValue = "";
DisplayValue = "Error";
}
}
