append one but another type, if int, then append string item, vice verse.

repeat one item (random).

remove one (random).

replace one (random) but another type, if int, then append string item, vice verse.

replace one (random) to bool - false.

replace one (random) to bool - true.

replace one (random) to nil (i.e.

just keep one item (random).

< --------------- Array -------------> blank [].

set the [] to int.

set the [] has only item bool - false.

set the [] has only item bool - true.

set the [] has only item int.

set the [] has only item nil (i.e.

set the [] has only item string.

set the [] to string.

< --------------- Bool ------------->.

mid none-ascii.

mid blank.

----------------------------------------------------- other Rules---------------------------------------------- prefix blank.

suffix blank.

longlong string.

special char(s) (~!@#$%^&*()_+{}[]<>?).

change type (complex, i.e.

change type (simple, i.e.

only one char.

set the [] to bool - false.

set the [] to bool - true.

----------------------------------------------------- Common Rules ------------------------------------------------------- empty.

blank.

set to &.

set to *.

set to @.

set to ^.

set to $.

set to .

set to e/E, this is for MCharNumeric, which can accept only Numeric, but `e, E, -, +` sign sometimes are negeative test.

set to e/E, this is for MCharNumeric, which can accept only Numeric, but `e, E, -, +` sign sometimes are negeative test.

set to !.

set to -.

set to #.

set to %.

set to +.

< --------------- Float ------------->.

< --------------- Int ------------->.

< --------------- Map -------------> blank {}.

.

.

.