[英]Can I use Python Debugger In Bazel Test
I am trying to debug my tests using pdb (Python debugger) while running them with bazel.我正在尝试使用 pdb(Python 调试器)调试我的测试,同时使用 bazel 运行它们。
This is a sample test I have:这是我的示例测试:
class TestMembersResource(TestCase):
def test_get(self):
response = self.client.get('/api/v1/members/')
import ipdb; ipdb.set_trace()
self.assertEqual(response.status_code)
When I try to run it with bazel test...
I get the following output:当我尝试使用
bazel test...
我得到以下 output:
Traceback (most recent call last):
File "/root/.cache/bazel/_bazel_root/ae988d93859d448ae36776fcb135b36c/execroot/__main__/bazel-out/k8-fastbuild/bin/webserver/members/api/tests/test_members_resource.runfiles/__main__/webserver/members/api/tests/test_members_resource.py", line 22, in test_get
self.assertEqual(response.status_code, 200,
File "/root/.cache/bazel/_bazel_root/ae988d93859d448ae36776fcb135b36c/execroot/__main__/bazel-out/k8-fastbuild/bin/webserver/members/api/tests/test_members_resource.runfiles/__main__/webserver/members/api/tests/test_members_resource.py", line 22, in test_get
self.assertEqual(response.status_code, 200,
File "/usr/lib/python2.7/bdb.py", line 49, in trace_dispatch
return self.dispatch_line(frame)
File "/usr/lib/python2.7/bdb.py", line 68, in dispatch_line
if self.quitting: raise BdbQuit
BdbQuit
Without pdb everything works pretty smooth.没有 pdb 一切工作都非常顺利。
Is there a way to get an interactive shell and use the standard pdb commands with bazel test?有没有办法获得交互式 shell 并使用标准 pdb 命令和 bazel 测试?
Thanks!谢谢!
你需要使用--run_under
:
bazel test --run_under=/usr/bin/pdb //webserver/members/api/tests:test_members_resource
You can do this using the --run_under flag, as mentioned. 如上所述,您可以使用--run_under标志执行此操作。 It's important to note that you need to point to the pdb.py for your python install.
请务必注意,您需要指向python安装的pdb.py。 To find where to point to, you can do the following:
要找到指向的位置,您可以执行以下操作:
Check where your python version is installed. 检查python版本的安装位置。 This should be using something like python2.7, or python3.6, not just python or python3, as those are frequently just symlinks.
这应该使用类似python2.7或python3.6的东西,而不仅仅是python或python3,因为它们通常只是符号链接。
$ which python3.6
/Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6
Note that this is where the binary is located, while we want to point to a library file. 请注意,这是二进制文件所在的位置,而我们希望指向库文件。 To do so, replace the last bin with lib, and specify the desired file, something like this:
为此,请使用lib替换最后一个bin,并指定所需的文件,如下所示:
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/pdb.py
Now you can run your targets like this: 现在您可以像这样运行目标:
bazel run --run_under="/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/pdb.py"
Alternatively to using bazel's --run_under
, you can also just set a breakpoint()
(builtin function, no import needed) anywhere is your code and just do a normal bazel run
.除了使用 bazel 的
--run_under
,您还可以在代码的任何地方设置一个breakpoint()
(内置 function,无需导入),只需执行正常的bazel run
。 When the interpreter hits the breakpoint, it will open pdb
.当解释器到达断点时,它将打开
pdb
。
Optional but very helpful: Use pudb via可选但非常有用:使用pudb via
pip install pudb
export PYTHONBREAKPOINT="pudb.set_trace"
# add breakpoint() to your code
bazel run PYTHON_TARGET
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