Add some math tests for invalid inputs

muparser-2.2.5/src/muParser.cpp

@@ -168,7 +168,7 @@ ValueOrError Parser::Min(const value_type *a_afArg, int a_iArgc) {
     \param [in] a_iArgc The size of a_afArg
 */
 ValueOrError Parser::Max(const value_type *a_afArg, int a_iArgc) {
-    if (!a_iArgc) throw exception_type(_T("too few arguments for function min."));
+    if (!a_iArgc) throw exception_type(_T("too few arguments for function max."));
 
     value_type fRes = a_afArg[0];
     for (int i = 0; i < a_iArgc; ++i) fRes = std::max(fRes, a_afArg[i]);

tests/math.err

@@ -4,3 +4,10 @@
 
 ####################
 # Validate how variables in an expression are handled
+
+####################
+# Validate math error reporting
+math: Invalid expression: Too few parameters for function "min" at expression position 5
+math: Invalid expression: String value used where a numerical argument is expected.
+math: Invalid expression: Too few parameters for function "max" at expression position 5
+math: Invalid expression: Too few parameters for function "sum" at expression position 5

tests/math.in

@@ -22,3 +22,9 @@ set x 3
 set y 1.5
 math "-$x * $y"
 math -s1 "-$x * $y"
+
+logmsg Validate math error reporting
+not math 'min()'
+not math 'min("abc")'
+not math 'max()'
+not math 'sum()'

tests/math.out

@@ -22,3 +22,6 @@
 2
 -4
 -4.5
+
+####################
+# Validate math error reporting