public void ExpressionParsingHelpersCOPYTest() { string source = "abcdefghijk"; string result = "bcde"; Assert.AreEqual(result, ExpressionParsingHelpers.COPY(source, 1, 4)); }
public void ExpressionParsingHelpersRemoveSpacesTest() { string initialStr = "a + b - c "; string resultStr = "a+b-c"; Assert.AreEqual(resultStr, ExpressionParsingHelpers.RemoveSpaces(initialStr)); }
public void ExpressionParsingHelpersDeleteEmptyBracketsTest() { string initialStr = "()a + b() - c()"; string resultStr = "a + b - c"; Assert.AreEqual(resultStr, ExpressionParsingHelpers.DeleteEmptyBrackets(initialStr)); }
public void ExpressionParsingHelpersCheckBracketBalanceTest() { string correctStr = "(((a + b) - c) / (2))"; string wrongStr = "(a + b) - c) / 2"; string wrongStr2 = "(((a + b) - c) / 2"; Assert.AreEqual(true, ExpressionParsingHelpers.CheckBracketBalance(correctStr)); Assert.AreEqual(false, ExpressionParsingHelpers.CheckBracketBalance(wrongStr)); Assert.AreEqual(false, ExpressionParsingHelpers.CheckBracketBalance(wrongStr2)); }
public void ExpressionParsingHelpersAddMinusOneTest() { string minusTwo = "-2"; Assert.AreEqual(minusTwo, ExpressionParsingHelpers.AddMinusOne(minusTwo)); string minusA = "-A + b"; string minusAResult = "(-1)*A + b"; Assert.AreEqual(minusAResult, ExpressionParsingHelpers.AddMinusOne(minusA)); }
public void ExpressionParsingHelpersGetAllSubstringIndexesTest() { string initialString = "sin(x) + cos(a) - 2 * sin(y)"; string substring = "sin"; List <int> expected = new List <int> { 0, 22 }; CollectionAssert.AreEquivalent(expected, ExpressionParsingHelpers.GetAllSubstringIndexes(initialString, substring)); }
public void ExpressionParsingHelpersRemoveWrappedBracketsTest() { string errorMessage = "Bracket balance is not observed!"; List <string> initialExpressions = new List <string> { "(a + b)", "((a + b))", "((a + b - (c * 2)))", "a - b", "(a - b) + c" }; List <string> resultExpressions = new List <string> { "a + b", "a + b", "a + b - (c * 2)", "a - b", "(a - b) + c" }; string fakeExpression = "(a - b + c"; for (int i = 0; i < initialExpressions.Count; i++) { Assert.AreEqual(resultExpressions[i], ExpressionParsingHelpers.RemoveWrappedBrackets(initialExpressions[i])); } try { ExpressionParsingHelpers.RemoveWrappedBrackets(fakeExpression); } catch (Exception e) { Assert.AreEqual(errorMessage, e.Message); } }