Rename done with:
for file in progit; do replaced=$(echo $file | sed -e "s/progit/pagure/g"); git mv $file $replaced; done

[puiterwijk@bofh pagure (rename-tests +)]$ git commit -sm "Rename tests from progit to pagure"
[rename-tests 413eadd] Rename tests from progit to pagure
26 files changed, 0 insertions(+), 0 deletions(-)
rename tests/{test_progit_flask_api.py => test_pagure_flask_api.py} (100%)
rename tests/{test_progit_flask_api_auth.py => test_pagure_flask_api_auth.py} (100%)
rename tests/{test_progit_flask_api_fork.py => test_pagure_flask_api_fork.py} (100%)
rename tests/{test_progit_flask_api_issue.py => test_pagure_flask_api_issue.py} (100%)
rename tests/{test_progit_flask_api_project.py => test_pagure_flask_api_project.py} (100%)
rename tests/{test_progit_flask_dump_load_ticket.py => test_pagure_flask_dump_load_ticket.py} (100%)
rename tests/{test_progit_flask_internal.py => test_pagure_flask_internal.py} (100%)
rename tests/{test_progit_flask_ui_admin.py => test_pagure_flask_ui_admin.py} (100%)
rename tests/{test_progit_flask_ui_app.py => test_pagure_flask_ui_app.py} (100%)
rename tests/{test_progit_flask_ui_fork.py => test_pagure_flask_ui_fork.py} (100%)
rename tests/{test_progit_flask_ui_groups.py => test_pagure_flask_ui_groups.py} (100%)
rename tests/{test_progit_flask_ui_issues.py => test_pagure_flask_ui_issues.py} (100%)
rename tests/{test_progit_flask_ui_no_master_branch.py => test_pagure_flask_ui_no_master_branch.py} (100%)
rename tests/{test_progit_flask_ui_plugins.py => test_pagure_flask_ui_plugins.py} (100%)
rename tests/{test_progit_flask_ui_plugins_fedmsg.py => test_pagure_flask_ui_plugins_fedmsg.py} (100%)
rename tests/{test_progit_flask_ui_plugins_irc.py => test_pagure_flask_ui_plugins_irc.py} (100%)
rename tests/{test_progit_flask_ui_plugins_mail.py => test_pagure_flask_ui_plugins_mail.py} (100%)
rename tests/{test_progit_flask_ui_plugins_progit_hook.py => test_pagure_flask_ui_plugins_pagure_hook.py} (100%)
rename tests/{test_progit_flask_ui_plugins_progit_request_hook.py => test_pagure_flask_ui_plugins_pagure_request_hook.py} (100%)
rename tests/{test_progit_flask_ui_plugins_progit_ticket_hook.py => test_pagure_flask_ui_plugins_pagure_ticket_hook.py} (100%)
rename tests/{test_progit_flask_ui_repo.py => test_pagure_flask_ui_repo.py} (100%)
rename tests/{test_progit_flask_ui_slash_branch_name.py => test_pagure_flask_ui_slash_branch_name.py} (100%)
rename tests/{test_progit_lib.py => test_pagure_lib.py} (100%)
rename tests/{test_progit_lib_git.py => test_pagure_lib_git.py} (100%)
rename tests/{test_progit_lib_link.py => test_pagure_lib_link.py} (100%)
rename tests/{test_progit_lib_model.py => test_pagure_lib_model.py} (100%)

Thanks