public void Double_Exposant_SepIsDot_false()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
//evaluator.SetDoubleDecimalSeparator(ExpressionEvalDef.DoubleDecimalSeparator.Dot);
string expr = "(a = 12.45E3)";
ParseResult parseResult = evaluator.Parse(expr);
Assert.IsFalse(parseResult.HasError, "the parse should finish successfully");
//====2/prepare the execution, provide all used variables: type and value
//ExprExecResult execResult = evaluator.InitExec();
evaluator.DefineVarDouble("a", 1345);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.AreEqual(false, execResult.HasError, "The exec of the expression should finish with success");
// check the final result value
Assert.IsFalse(execResult.ResultBool, "The result value should be false");
}
/// <summary>
/// error, the variables types mismatch.
/// Can't compare an integer and a boolean.
///
/// ====The expression is: (a=b)
/// The expr '(a=b)' has errors, nb = 1
/// Error code: ExprComparisonOperandsTypeMismatchIntExpected
/// Error param: Position= 3
///
/// </summary>
public static void A_Eq_B_TypeMismatch()
{
string expr = "(a=b)";
Console.WriteLine("\n====The expression is: " + expr);
ExpressionEval evaluator = new ExpressionEval();
// 1-decode the expression
evaluator.Parse(expr);
// 2-set variables
evaluator.DefineVarInt("a", 12);
evaluator.DefineVarBool("b", true);
// 3-execute the expression
ExecResult execResult = evaluator.Exec();
// 4-check error
if (execResult.HasError)
{
// display the error code
Console.WriteLine("The expr '" + expr + "' has errors, nb=" + execResult.ListError.Count);
ExprError error = execResult.ListError[0];
Console.WriteLine("Error code: " + error.Code);
// display the error parameter (the position of the wrong token)
Console.WriteLine("Error param: " + error.ListErrorParam[0].Key + "= " + error.ListErrorParam[0].Value);
return;
}
Console.WriteLine("The expr " + expr + " parse finished sucessfully!");
}
public void fct_OP_12_Sep_bonjour_8dot5_CP_retInt_21_ok()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = "fct(4, \"bonjour\", 8.5)";
evaluator.Parse(expr);
// link function body to function call
var funcMapper = new Func3ParamsRetIntMapper <int, string, double>();
funcMapper.SetFunction(FctP1Int_P2String_P3Double);
evaluator.AttachFunction("Fct", funcMapper);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.AreEqual(false, execResult.HasError, "The exec of the expression should finish with success");
// check the final result value (is ExprExecFunctionCallBool override ExprExecValueBool)
ExprExecValueInt valueInt = execResult.ExprExec as ExprExecValueInt;
Assert.IsNotNull(execResult, "The result value should be a bool");
Assert.AreEqual(21, valueInt.Value, "The result value should be: 18");
}
public void fct_OP_CP_retBool_false_ok()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = "fct()";
ParseResult parseResult = evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value
//ExprExecResult execResult = evaluator.InitExec();
// attach the function code FctFalse() to the function call: Fct()
evaluator.AttachFunction("Fct", FctFalse);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.AreEqual(false, execResult.HasError, "The exec of the expression should finish with success");
// check the final result value (is ExprExecFunctionCallBool override ExprExecValueBool)
ExprExecValueBool valueBool = execResult.ExprExec as ExprExecValueBool;
Assert.IsNotNull(execResult, "The result value should be a bool");
Assert.AreEqual(false, valueBool.Value, "The result value should be: false");
}
/// <summary>
/// Execute a function having 2 int parameters.
/// </summary>
public static void CallFunctionWith3IntParams_ret_10()
{
string expr = "fct(a,b,c)";
Console.WriteLine("\n====The expression is: " + expr);
ExpressionEval evaluator = new ExpressionEval();
//====1/decode the expression
evaluator.Parse(expr);
//====2/prepare the execution, attach function
Console.WriteLine("Attach function code to Fct() and set value to param: a=2, b=3; c=5");
evaluator.DefineVarInt("a", 2);
evaluator.DefineVarInt("b", 3);
evaluator.DefineVarInt("c", 5);
// attach the 3 params function to the function call
Func3ParamsRetIntMapper <int, int, int> func3ParamsRetIntMapper = new Func3ParamsRetIntMapper <int, int, int>();
func3ParamsRetIntMapper.SetFunction(FctRetInt_Int_Int_Int);
evaluator.AttachFunction("fct", func3ParamsRetIntMapper);
//====3/Execute the expression
ExecResult execResult = evaluator.Exec();
//====4/get the result, its a bool value
Console.WriteLine("Execution has error? (should be false): " + execResult.HasError);
Console.WriteLine("Execution Result is an int type?: " + execResult.IsResultInt);
Console.WriteLine("Execution Result is (should be 10): " + execResult.ResultInt);
}
public void fct_OP_not_OP_a_CP_CP_retBool_true_ok()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = "fct(not (a))";
ParseResult parseResult = evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables and functions
evaluator.DefineVarBool("a", true);
// link function body to function call
evaluator.AttachFunction("Fct", Fct_RetNot);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.AreEqual(false, execResult.HasError, "The exec of the expression should finish with success");
// check the final result value (is ExprExecFunctionCallBool override ExprExecValueBool)
ExprExecValueBool valueBool = execResult.ExprExec as ExprExecValueBool;
Assert.IsNotNull(execResult, "The result value should be a bool");
Assert.AreEqual(true, valueBool.Value, "The result value should be: true");
}
public static void a_plus_b_mul_c_ret_14()
{
string expr = "a+b*c";
Console.WriteLine("\n====The expression is: " + expr);
Console.WriteLine("The component Apply operator priority: a+(b*c)");
ExpressionEval evaluator = new ExpressionEval();
//====1/decode the expression
evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value, remove the previous result
Console.WriteLine("Define variables: a:=2, b:=3, c:= 4");
evaluator.DefineVarInt("a", 2);
evaluator.DefineVarInt("b", 3);
evaluator.DefineVarInt("c", 4);
//====3/Execute the expression
ExecResult execResult = evaluator.Exec();
//====4/get the result, its a bool value
Console.WriteLine("Execution Result is an int (true)?: " + execResult.IsResultInt);
Console.WriteLine("Execution Result (should be 14): " + execResult.ResultInt);
}
/// <summary>
/// Define a variable but the syntax name is wrong: has space.
/// </summary>
public static void DefineVarSyntaxName()
{
string expr = "Not(A)";
Console.WriteLine("\n====The expression is: " + expr);
ExpressionEval evaluator = new ExpressionEval();
//====1/decode the expression
ParseResult parseResult = evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value, remove the previous result
Console.WriteLine("Define variables: A=12");
evaluator.DefineVarBool("a", false);
Console.WriteLine("Define wrong variable name: 'a b c' -> don't stop the execution of the evaluation of the expression!");
evaluator.DefineVarInt("a b c", 12);
List <ExprError> listConfigError = evaluator.GetListErrorExprConfig();
Console.WriteLine("DefineVar failed, err (VarNameSyntaxWrong): " + listConfigError[0].Code);
//====3/Execute the expression
ExecResult execResult = evaluator.Exec();
//====4/get the result, its a bool value
Console.WriteLine("Execution Result (true): " + execResult.ResultBool);
}
public void fct_OP_CP_retBool_paramMissing_ok()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = "fct()";
ParseResult parseResult = evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value
//ExprExecResult execResult = evaluator.InitExec();
// link function body to function call
evaluator.AttachFunction("fct", FctRetBool_P1Bool);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.IsTrue(execResult.HasError, "The exec of the expression should finish with error");
Assert.AreEqual(ErrorCode.FunctionCallParamCountWrong, execResult.ListError[0].Code, "The exec of the expression should finish with success");
Assert.AreEqual("FunctionCallName", execResult.ListError[0].ListErrorParam[0].Key, "The exec of the expression should finish with success");
Assert.AreEqual("fct", execResult.ListError[0].ListErrorParam[0].Value, "The exec of the expression should finish with success");
}
public void Double_and_OneVarTypeWrong_err()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
//evaluator.SetDoubleDecimalSeparator(ExpressionEvalDef.DoubleDecimalSeparator.Dot);
string expr = "a and b";
ParseResult parseResult = evaluator.Parse(expr);
Assert.IsFalse(parseResult.HasError, "the parse should finish successfully");
//====2/prepare the execution, provide all used variables: type and value
evaluator.DefineVarInt("a", 12);
evaluator.DefineVarBool("b", true);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.IsTrue(execResult.HasError, "The exec of the expression should finish with error");
// todo: pas bon!! corriger
Assert.AreEqual(ErrorCode.ExprLogicalOperandTypeNotAllowed, execResult.ListError[0].Code, "The exec of the expression should finish with success");
}
public void Double_a_xor_b_false_ok()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
//evaluator.SetDoubleDecimalSeparator(ExpressionEvalDef.DoubleDecimalSeparator.Dot);
string expr = "a xor b";
ParseResult parseResult = evaluator.Parse(expr);
Assert.IsFalse(parseResult.HasError, "the parse should finish successfully");
//====2/prepare the execution, provide all used variables: type and value
evaluator.DefineVarBool("a", false);
evaluator.DefineVarBool("b", true);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.AreEqual(false, execResult.HasError, "The exec of the expression should finish with success");
// check the final result value
Assert.IsTrue(execResult.IsResultBool, "The result should be a bool");
Assert.IsTrue(execResult.ResultBool, "The result value should be true");
}
/// <summary>
/// A dev!!
/// </summary>
static void TestExprLogicalSeveralOperands()
{
string expr = "(A and B or C)";
ExpressionEval evaluator = new ExpressionEval();
//====1/décode l'expression booléenne
ParseResult parseResult = evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value, remove the previous result
//ExprExecResult execResult = evaluator.InitExec();
evaluator.DefineVarBool("a", true);
evaluator.DefineVarBool("b", true);
evaluator.DefineVarBool("c", false);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
//====4/get the result
if (execResult.HasError)
{
Console.WriteLine("Execution Result: error!");
}
if (execResult.IsResultBool)
{
Console.WriteLine("Execution Result: " + execResult.ResultBool);
}
}
public void Exec_A_Diff_B_Bool_True_Ok()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = "(A<>B)";
ParseResult parseResult = evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value
//ExprExecResult execResult = evaluator.InitExec();
evaluator.DefineVarBool("a", false);
evaluator.DefineVarBool("b", true);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.AreEqual(false, execResult.HasError, "The exec of the expression should finish with success");
// check the final result value
ExprExecValueBool valueBool = execResult.ExprExec as ExprExecValueBool;
Assert.IsNotNull(valueBool, "The result value should be a bool");
Assert.AreEqual(true, valueBool.Value, "The result value should be: true");
}
/// <summary>
/// Get variables used in the expression.
///
/// The execution will displays:
/// Var #1, Name=a
/// Var #2, Name=b
/// </summary>
public static void GetVariableOfExpression()
{
string expr = "a=b";
Console.WriteLine("\n====The expression is: " + expr);
ExpressionEval evaluator = new ExpressionEval();
//====1/decode the expression
ParseResult parseResult = evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value, remove the previous result
// scan all variables found in the expression (found the variable named 'a')
int i = 0;
foreach (ExprVarUsed exprVar in parseResult.ListExprVarUsed)
{
i++;
Console.WriteLine("Var #" + i + ", Name=" + exprVar.Name);
}
Console.WriteLine("Define variables: a:=12, b:=12");
evaluator.DefineVarInt("a", 12);
evaluator.DefineVarInt("b", 12);
//====3/Execute the expression
ExecResult execResult = evaluator.Exec();
//====4/get the result, its a bool value
Console.WriteLine("Execution Result (should be true): " + execResult.ResultBool);
}
public void Exec_Not_OP_a_CP_VarTypeWrong()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = "Not(A)";
ParseResult parseResult = evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value
//ExprExecResult execResult = evaluator.InitExec();
// define the var a as an int in place of a bool!!!
evaluator.DefineVarInt("a", 12);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.AreEqual(true, execResult.HasError, "The exec of the expression should finish with success");
// get the error
ExprError error = execResult.ListError[0];
Assert.AreEqual(ErrorType.Exec, error.ErrorType, "The errorType should be: Exec");
Assert.AreEqual(ErrorCode.ExprLogicalNotOperator_InnerOperandBoolTypeExpected, error.Code, "The errCode should be: VariableNotCreated");
ErrorParam errParam = error.ListErrorParam[0];
Assert.AreEqual("Token", errParam.Key, "The errParam key should be: VarName");
Assert.AreEqual("A", errParam.Value, "The errParam value should be: a");
ErrorParam errParam2 = error.ListErrorParam[1];
Assert.AreEqual("Position", errParam2.Key, "The errParam key should be: VarName");
Assert.AreEqual("4", errParam2.Value, "The errParam value should be: a");
}
public void Bra_A_Eq_Minus_12_Bra()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = "(A=-12)";
//-1---parse the string, return a syntax tree
ParseResult parseResult = evaluator.Parse(expr);
Assert.IsFalse(parseResult.HasError, "the expression process should return success");
// check the root node
ExprComparison rootBinExpr = parseResult.RootExpr as ExprComparison;
Assert.IsNotNull(rootBinExpr, "The root node type should be BoolBinExpr");
// check the left part of the root node
ExprFinalOperand operandLeft = rootBinExpr.ExprLeft as ExprFinalOperand;
Assert.IsNotNull(operandLeft, "The left root node type should be BoolBinExprOperand");
Assert.AreEqual(operandLeft.Operand, "A", "The left operand should be A");
// check the right part of the root node
ExprFinalOperand operandRight = rootBinExpr.ExprRight as ExprFinalOperand;
Assert.IsNotNull(operandRight, "The left root node type should be BoolBinExprOperand");
Assert.AreEqual(operandRight.Operand, "-12", "The left operand should be -12");
// check the root node operator
Assert.AreEqual(rootBinExpr.Operator, OperatorComparisonCode.Equals, "The root operator should be =");
}
public static void Not_OP_A_CP_A_Int_Err()
{
string expr = "Not(A)";
Console.WriteLine("\n====The expression is: " + expr);
ExpressionEval evaluator = new ExpressionEval();
//====1/decode the expression
ParseResult parseResult = evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value, remove the previous result
Console.WriteLine("Define variables: A=12");
evaluator.DefineVarInt("a", 12);
//====3/Execute the expression
ExecResult execResult = evaluator.Exec();
if (execResult.HasError)
{
// error: VariableNotCreated
Console.WriteLine("Execution Result failed, err: " + execResult.ListError[0].Code);
// Key: VarName, Value: a
Console.WriteLine("Execution Result failed, ParamKey: " + execResult.ListError[0].ListErrorParam[0].Key + ", ParamValue: " + execResult.ListError[0].ListErrorParam[0].Value);
return;
}
//====4/get the result, its a bool value
Console.WriteLine("Execution Result: " + execResult.ResultBool);
}
/// <summary>
/// Execute a function call two times with different values.
///
/// fct(a) a:=8 ->return false
/// fct(a) a:=12 ->return true
///
/// </summary>
public static void CallFunctionWithIntParam_TwoTimes()
{
string expr = "fct(a)";
Console.WriteLine("\n====The expression is: " + expr);
ExpressionEval evaluator = new ExpressionEval();
//====1/decode the expression
evaluator.Parse(expr);
//====2/prepare the execution, attach function
Console.WriteLine("Attach function code to Fct() and set value to param: a=8");
evaluator.DefineVarInt("a", 8);
evaluator.AttachFunction("fct", FctRetBool_Int);
//====3/Execute the expression
ExecResult execResult = evaluator.Exec();
//====4/get the result, its a bool value
Console.WriteLine("Execution Result (should return false): " + execResult.ResultBool);
//============================================================
//====2/prepare the execution, attach function
Console.WriteLine("Set value to param: a=12");
evaluator.DefineVarInt("a", 12);
evaluator.AttachFunction("fct", FctRetBool_Int);
//====3/Execute the expression
execResult = evaluator.Exec();
//====4/get the result, its a bool value
Console.WriteLine("Execution Result (should return true): " + execResult.ResultBool);
}
public static void OP_A_Ou_b_CP_true()
{
string expr = "(a Ou b)";
Console.WriteLine("\n====The expression is: " + expr);
ExpressionEval evaluator = new ExpressionEval();
// set the tool in french
evaluator.SetLang(Language.Fr);
//====1/decode the expression
evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value, remove the previous result
Console.WriteLine("Define variables: a:=false, b=true");
evaluator.DefineVarBool("a", false);
evaluator.DefineVarBool("b", true);
//====3/Execute the expression
ExecResult execResult = evaluator.Exec();
//====4/get the result, its a bool value
Console.WriteLine("Execution Result: " + execResult.ResultBool);
}
public void fct_OP_a_CP_retDouble_P1String_ok()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = "fct(a)";
ParseResult parseResult = evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value
//ExprExecResult execResult = evaluator.InitExec();
// 3 letters -> return 3x1.5=4.5
evaluator.DefineVarString("a", "abc");
// link function body to function call
evaluator.AttachFunction("Fct", FctDouble_String);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.AreEqual(false, execResult.HasError, "The exec of the expression should finish with success");
// check the final result value (is ExprExecFunctionCallBool override ExprExecValueBool)
ExprExecValueDouble valueDouble = execResult.ExprExec as ExprExecValueDouble;
Assert.IsNotNull(valueDouble, "The result value should be a double");
Assert.AreEqual(4.5, valueDouble.Value, "The result value should be: true");
}
public void fct_OP_false_Sep_false_CP_retBool_true_ok()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = "fct(true, true, true)";
evaluator.Parse(expr);
// link function body to function call
var funcMapper = new Func3ParamsRetBoolMapper <bool, bool, bool>();
funcMapper.SetFunction(Fct3ParamsBool);
evaluator.AttachFunction("Fct", funcMapper);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.AreEqual(false, execResult.HasError, "The exec of the expression should finish with success");
// check the final result value (is ExprExecFunctionCallBool override ExprExecValueBool)
ExprExecValueBool valueBool = execResult.ExprExec as ExprExecValueBool;
Assert.IsNotNull(execResult, "The result value should be a bool");
Assert.AreEqual(true, valueBool.Value, "The result value should be: true");
}
public void fct_3Params_FunctionCall_OneMissing_err()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = "fct(true, true)";
evaluator.Parse(expr);
// link function body to function call
Func3ParamsRetBoolMapper <bool, bool, bool> func3ParamsRetBoolMapper = new Pierlam.ExpressionEval.Func3ParamsRetBoolMapper <bool, bool, bool>();
func3ParamsRetBoolMapper.SetFunction(Fct3ParamsBool);
evaluator.AttachFunction("fct", func3ParamsRetBoolMapper);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.IsTrue(execResult.HasError, "The exec of the expression should finish with error");
Assert.AreEqual(ErrorCode.FunctionCallParamCountWrong, execResult.ListError[0].Code, "The exec of the expression should finish with success");
Assert.AreEqual("FunctionCallName", execResult.ListError[0].ListErrorParam[0].Key, "The exec of the expression should finish with success");
Assert.AreEqual("fct", execResult.ListError[0].ListErrorParam[0].Value, "The exec of the expression should finish with success");
}
public void fct_OP_10_Sep_bonjour_CP_retBool_true_ok()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
evaluator.SetStringTagCode(StringTagCode.Quote);
string expr = "fct(10, 'bonjour')";
evaluator.Parse(expr);
// link function body to function call
evaluator.AttachFunction("Fct", FctP1Int_P2String);
//====3/execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.AreEqual(false, execResult.HasError, "The exec of the expression should finish with success");
// check the final result value (is ExprExecFunctionCallBool override ExprExecValueBool)
ExprExecValueBool valueBool = execResult.ExprExec as ExprExecValueBool;
Assert.IsNotNull(execResult, "The result value should be a bool");
Assert.AreEqual(true, valueBool.Value, "The result value should be: true");
}
/// <summary>
/// Expression: (A=B)
/// A boolean expression using two variables.
/// returns always a boolean value result.
///
/// Particularity:
/// Execute the same expression 2 times.
/// The first time, both variables A and B are defined as integer.
/// The second time, A and B are then defined as boolean.
///
/// The execution finish successfully.
/// </summary>
public static void A_Eq_B_Exec2Times()
{
string expr = "(A = B)";
Console.WriteLine("\n====The expression is: " + expr);
ExpressionEval evaluator = new ExpressionEval();
//====1/decode the expression
evaluator.Parse(expr);
//====2/prepare the execution, provide all used variables: type and value, remove the previous result
Console.WriteLine("Define variables: A=15; B=15 ");
evaluator.DefineVarInt("a", 15);
evaluator.DefineVarInt("b", 15);
//====3/Execute the expression
ExecResult execResult = evaluator.Exec();
//====4/get the result, its a bool value
Console.WriteLine("Execution Result: " + execResult.ResultBool);
//======================================================
//====2/prepare the execution, provide all used variables: type and value, remove the previous result
Console.WriteLine("\nExecute again the same provided expression but changes variables types and values:");
Console.WriteLine("Define variables: A=false; B=false");
evaluator.DefineVarBool("a", false);
evaluator.DefineVarBool("b", false);
//====3/execute l'expression booléenne
execResult = evaluator.Exec();
//====4/get the result, its a bool value
Console.WriteLine("Execution Result: " + execResult.ResultBool);
}
public void Expr_4_Mul_5_Plus_1_ok()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = "4*5-1";
//-1---parse the string, return a syntax tree
ParseResult parseResult = evaluator.Parse(expr);
Assert.IsFalse(parseResult.HasError, "the expression process should finish successfully");
// check the root node
ExprCalculation rootExprCalc = parseResult.RootExpr as ExprCalculation;
Assert.IsNotNull(rootExprCalc, "The root node type should be an ExprCalculation");
// the calc expr should contains 3 operands and 2 operators
Assert.AreEqual(3, rootExprCalc.ListExprOperand.Count, "The ExprCalculation should contains 3 operands");
Assert.AreEqual(2, rootExprCalc.ListOperator.Count, "The ExprCalculation should contains 2 operators");
// check (just) the fisrt operator: */Mul
ExprOperatorCalculation operatorTwo = rootExprCalc.ListOperator[0] as ExprOperatorCalculation;
Assert.IsNotNull(operatorTwo, "The left root node type should be a ExprFinalOperand");
Assert.AreEqual(OperatorCalculationCode.Multiplication, operatorTwo.Operator, "The Second operator should be: *");
// check (just) the last operand: 1
ExprFinalOperand operandThree = rootExprCalc.ListExprOperand[2] as ExprFinalOperand;
Assert.IsNotNull(operandThree, "The left root node type should be a ExprFinalOperand");
Assert.AreEqual(1, operandThree.ValueInt, "The left operand should be 11");
}
public void ExprIsBlank()
{
ExpressionEval evaluator = new ExpressionEval();
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
string expr = " ";
ParseResult decodeResult = evaluator.Parse(expr);
Assert.IsTrue(decodeResult.HasError, "the expression process should fail");
}
public void Double_SepIsComma_err()
{
ExpressionEval evaluator = new ExpressionEval();
//evaluator.SetDoubleAndFunctionCallParameterSeparator(ExpressionEvalDef.DoubleAndFunctionCallParameterSeparator.ExcelLike);
string expr = "12,45";
ParseResult parseResult = evaluator.Parse(expr);
Assert.IsTrue(parseResult.HasError, "the parse should failed");
// todo: pour l'instant!! car traitement des appels de fct pas encore traité!
Assert.AreEqual(ErrorCode.WrongExpression, parseResult.ListError[0].Code, "the parse should failed: ValueNumberBadFormed");
}
public void ParseOk_InitExec_Exec_ok()
{
ExpressionEval evaluator = new ExpressionEval();
string expr = "12";
ParseResult parseResult = evaluator.Parse(expr);
Assert.IsFalse(parseResult.HasError, "The parse of the expression should finish with success");
//====execute l'expression booléenne
ExecResult execResult = execResult = evaluator.Exec();
Assert.IsFalse(execResult.HasError, "The init exec of the expression should failed");
}
static ParseResult ParseExpr(ExpressionEval evaluator, string expr)
{
// definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
evaluator.SetLang(Language.En);
// configurer le format des opérandes
// todo: constante, var..
// todo: configurer les valeurs spéciales: true et false (vrai et faux)
Console.WriteLine("eval expr: " + expr);
//====1/décode l'expression booléenne
ParseResult parseResult = evaluator.Parse(expr);
if (parseResult.HasError)
{
Console.WriteLine("ERR, Une ou plusieurs erreurs ont été générées lors du parsing de l'expression " + expr + ", nb erreur(s): " + parseResult.ListError.Count);
// affiche les erreurs
int i = 0;
foreach (ExprError error in parseResult.ListError)
{
Console.WriteLine("erreur N°" + i + ": " + error.Code.ToString());
}
return(null);
}
// displays all variables present in the expression
int j = 0;
foreach (ExprVarUsed exprVar in parseResult.ListExprVarUsed)
{
j++;
Console.WriteLine("Var #" + j + "Name=" + exprVar.Name);
}
// display all the tokens found in the expression
foreach (ExprToken token in parseResult.ListExprToken)
{
Console.WriteLine(token.Position + ", " + token.Value);
}
Console.WriteLine("Decode expr: OK, pas d'erreur.");
//====2/prepare the execution, provide all used variables: type and value
//return evaluator.InitExec(parseResult);
return(parseResult);
}
public void ParseOk__DefVarMissing_InitExec_Exec_ok()
{
ExpressionEval evaluator = new ExpressionEval();
string expr = "a";
ParseResult parseResult = evaluator.Parse(expr);
Assert.IsFalse(parseResult.HasError, "The parse of the expression should finish with success");
//====execute l'expression booléenne
ExecResult execResult = evaluator.Exec();
Assert.IsTrue(execResult.HasError, "The init exec of the expression should failed");
Assert.AreEqual(ErrorCode.VariableNotDefined, execResult.ListError[0].Code, "the error should be VariableNotCreated");
}