Travis收集...命令“ pytest”以1退出

Question

对于项目https://github.com/WolfgangFahl/play-chess-with-a-webcam和travis配置：

# see https://docs.travis-ci.com/user/languages/python/
language: python
# python versions to be tested
python:
#  - "2.7" # see https://github.com/WolfgangFahl/gremlin-python-tutorial/issues/7
  - "3.7"
# command to install dependencies
install:
  - pip install -r requirements.txt
# command to run tests
script:
  - pytest

我收到错误消息：

collecting ... The command "pytest" exited with 1.

在travis环境中

。在本地时，我得到：

============================== test session starts ==============================
platform darwin -- Python 3.7.4, pytest-5.2.1, py-1.8.0, pluggy-0.12.0
rootdir: /Users/wf/source/python/play-chess-with-a-webcam
collected 5 items                                                               

test_OpenCV_version.py .                                                  [ 20%]
test_Video.py ..                                                          [ 60%]
test_findBoard.py ..                                                      [100%]

=============================== 5 passed in 7.03s ===============================

错误原因是什么？

我该如何解决？

Answer 1

错误原因是什么？ 测试具有OpenCV GUI输出，无头的情况让pytest令人窒息。

我该如何解决？ 将以下内容添加到.travis.yml

# allow gui output
services:
  - xvfb