isBoolean
start time :  8Apr2022 11h12m58s

+--+-----+----+
|OK|test#|dat0|
+--+-----+----+
| l|t01  |   o|
+--+-----+----+
| l|t02  |   l|
+--+-----+----+
| l|t03  |l   |
+--+-----+----+
| l|t04  |5   |
+--+-----+----+
| l|t05  |   0|
+--+-----+----+
| l|t06  |   1|
+--+-----+----+
| l|t07  |  -5|
+--+-----+----+
| l|t08  |o   |
+--+-----+----+
| l|t09  |l   |
+--+-----+----+
| l|t10  |5   |
+--+-----+----+
+--+-----+----+
|OK|test#|calc|
+--+-----+----+
| l|t01  |   l|
+--+-----+----+
| l|t02  |   l|
+--+-----+----+
| l|t03  |   o|
+--+-----+----+
| l|t04  |   o|
+--+-----+----+
| l|t05  |   o|
+--+-----+----+
| l|t06  |   o|
+--+-----+----+
| l|t07  |   o|
+--+-----+----+
| l|t08  |   o|
+--+-----+----+
| l|t09  |   o|
+--+-----+----+
| l|t10  |   o|
+--+-----+----+
+--+-----+------------------------+
|OK|test#|comments                |
+--+-----+------------------------+
| l|t01  |simple                  |
+--+-----+------------------------+
| l|t02  |simple                  |
+--+-----+------------------------+
| l|t03  |character is not boolean|
+--+-----+------------------------+
| l|t04  |character is not boolean|
+--+-----+------------------------+
| l|t05  |integer is not boolean  |
+--+-----+------------------------+
| l|t06  |integer is not boolean  |
+--+-----+------------------------+
| l|t07  |integer is not boolean  |
+--+-----+------------------------+
| l|t08  |string is not boolean   |
+--+-----+------------------------+
| l|t09  |string is not boolean   |
+--+-----+------------------------+
| l|t10  |string is not boolean   |
+--+-----+------------------------+