public void Test_RepairStartExpression()
{
string oneExpression = "+2";
string twoExpression = "2+2";
string threeExpression = "-2";
PrepInputExpression testPrep = new PrepInputExpression();
Assert.AreEqual(testPrep.PrepareExpression(oneExpression), "0+2");
Assert.AreEqual(testPrep.PrepareExpression(twoExpression), "2+2");
Assert.AreEqual(testPrep.PrepareExpression(threeExpression), "0-2");
}
public void Test_ValidateInputexpression_CheckQuotes()
{
// incorrect
string oneExpression = "((2+3)*2+1/10";
string twoExpression = "(1+1)/3)+1)/4)";
// correct
string threeExpression = "((1+(1)))";
string fourExpression = "1+(2+3)/5+(1+1)/2";
PrepInputExpression testPrep = new PrepInputExpression();
Assert.AreEqual(testPrep.ValidateInputExpression(oneExpression).Count, 1);
Assert.AreEqual(testPrep.ValidateInputExpression(twoExpression).Count, 1);
Assert.AreEqual(testPrep.ValidateInputExpression(threeExpression).Count, 0);
Assert.AreEqual(testPrep.ValidateInputExpression(fourExpression).Count, 0);
}
public void Test_ValidateInputExpression_StartEndSymbol()
{
// incorrect
string oneExpression = "2*";
string twoExpression = "4/";
string threeExpression = "/5*";
string fourExpression = "*6/";
// correct
string fiveExpression = "5*6+4-3";
PrepInputExpression testPrep = new PrepInputExpression();
Assert.AreEqual(testPrep.ValidateInputExpression(oneExpression).Count, 1);
Assert.AreEqual(testPrep.ValidateInputExpression(twoExpression).Count, 1);
Assert.AreEqual(testPrep.ValidateInputExpression(threeExpression).Count, 1);
Assert.AreEqual(testPrep.ValidateInputExpression(fourExpression).Count, 1);
Assert.AreEqual(testPrep.ValidateInputExpression(fiveExpression).Count, 0);
}
public void Test_ValidateInputExpresion_CheckRightSymbols()
{
// incorrect
string oneExpression = "qwerty1+2";
string twoExpression = "=45+2qwerty";
string threeExpression = "(qwerty)-1+2";
// correct
string fourExpression = "((1+(1)))";
string fiveExpression = "1+(2+3)/5+(1+1)/2";
PrepInputExpression testPrep = new PrepInputExpression();
Assert.AreEqual(testPrep.ValidateInputExpression(oneExpression).Count, 1);
Assert.AreEqual(testPrep.ValidateInputExpression(twoExpression).Count, 1);
Assert.AreEqual(testPrep.ValidateInputExpression(threeExpression).Count, 1);
Assert.AreEqual(testPrep.ValidateInputExpression(fourExpression).Count, 0);
Assert.AreEqual(testPrep.ValidateInputExpression(fiveExpression).Count, 0);
}