test for calling set_trace with custom pdb cls
test for calling set_trace with custom pdb cls

MichaelAquilina/pytest,flub/pytest,pfctdayelise/pytest,alfredodeza/pytest,The-Compiler/pytest,RonnyPfannschmidt/pytest,tomviner/pytest,davidszotten/pytest,pytest-dev/pytest,hackebrot/pytest,tomviner/pytest,ddboline/pytest,txomon/pytest,rmfitzpatrick/pytest,markshao/pytest,nicoddemus/pytest,The-Compiler/pytest,Akasurde/pytest,nicoddemus/pytest,tareqalayan/pytest