• Missing random test
• Make the tests in one it block
• A duplicate of this?

Giving out these

pyramidBuilder(6) --> ['#','##','###','####','#####','######'] or ['#',
'##',
'###',
'####',
'#####',
'######']

don't really help (it's a waste of space I'd say, just make it one line), might as well put the negative test case in the example block. Some warriors won't even scroll past the example block. (i.e Me)

Edit: Also, would this be considered as duplicate of this?