test 1 row major order

a big red rose
a big red tulip
a big pink rose
a big pink tulip
a big yellow rose
a big yellow tulip
another big red rose
another big red tulip
another big pink rose
another big pink tulip
another big yellow rose
another big yellow tulip

test 2 column major order

a big red rose
another big red rose
a big pink rose
another big pink rose
a big yellow rose
another big yellow rose
a big red tulip
another big red tulip
a big pink tulip
another big pink tulip
a big yellow tulip
another big yellow tulip

test 3 get_order and set_order back to row major

get_order() returned 1; should return 1
get_order() returned 0; should return 0
a big red rose
a big red tulip
a big pink rose
a big pink tulip
a big yellow rose
a big yellow tulip
another big red rose
another big red tulip
another big pink rose
another big pink tulip
another big yellow rose
another big yellow tulip

test 4 warn about empty set among list of sets
(Warning message may not be captured in the test results file)


test 5 do not warn empty set among list of sets


test 6 warn about no sets at all
(Warning message may not be captured in the test results file)

test 7 do not warn about no sets at all


test 8 -- OK to have undef in a set, it print as the null string

before_undef

after_undef

test 9 Try to go past last -- singleton --next() should fail

1 row, next() called twice
Error: Set::CartesianProduct next() invalid: iterator after last item at testcart.pl line 206

test 10 Try to go past last -- next() call should fail

2 rows
next() called thrice
Error: Set::CartesianProduct next() invalid: iterator after last item at testcart.pl line 215

test 11 Should croak -- no args to new()

Error: Set::CartesianProduct new() needs an argument for lists of sets at testcart.pl line 220

test 12 Should croak -- wrong arg to new() 

Error: Set::CartesianProduct new() needs first argument to be array ref at testcart.pl line 223

test 13 Should croak -- wrong contents of arg to new() 

Error: Set::CartesianProduct new() needs set[1] to be array ref at testcart.pl line 226

test 14 Should croak -- too many args to next()

Error: Set::CartesianProduct next() does not take any arguments at testcart.pl line 231

test 15 Should croak -- too many args to get_order()

Error: Set::CartesianProduct get_order() takes no arguments at testcart.pl line 237

test 16 Should croak -- not enough args to set_order()

Error: Set::CartesianProduct set_order() needs 1 argument at testcart.pl line 243

test 17 Should croak -- invalid arg to set_order()

Error: Set::CartesianProduct set_order() invalid argument: 17 at testcart.pl line 249

test 18 Should croak -- arg not numeric to set_order()
(Compiler message may not be captured in the test results file)


test 19 Should croak -- too many args to set_order()

Error: Set::CartesianProduct set_order() needs 1 argument at testcart.pl line 266

test 20 Should croak -- too many args to is_row_major()

Error: Set::CartesianProduct is_row_major() takes no arguments at testcart.pl line 273

test 21 Should croak -- set_order() called when not at start

Error: Set::CartesianProduct set_order() can only be called at start at testcart.pl line 280