x测试失败时，打印的原因报告有关测试文件，测试类和测试用例的信息，而跳过的测试用例仅报告测试文件和调用跳过的行。
这是一个测试示例：
---------------------------------------------------------------------------
AssertionError Traceback (most recent call last)
~/anaconda3/lib/python3.7/site-packages/skimage/_shared/utils.py in safe_as_int(val, atol)
147 try:
--> 148 np.testing.assert_allclose(mod, 0, atol=atol)
149 except AssertionError:
~/anaconda3/lib/python3.7/site-packages/numpy/testing/_private/utils.py in assert_allclose(actual, desired, rtol, atol, equal_nan, err_msg, verbose)
1451 assert_array_compare(compare, actual, desired, err_msg=str(err_msg),
-> 1452 verbose=verbose, header=header, equal_nan=equal_nan)
1453
~/anaconda3/lib/python3.7/site-packages/numpy/testing/_private/utils.py in assert_array_compare(comparison, x, y, err_msg, verbose, header, precision, equal_nan, equal_inf)
788 names=('x', 'y'), precision=precision)
--> 789 raise AssertionError(msg)
790 except ValueError:
AssertionError:
Not equal to tolerance rtol=1e-07, atol=0.001
(mismatch 66.66666666666666%)
x: array([0.25, 0.5 , 0. ])
y: array(0)
During handling of the above exception, another exception occurred:
ValueError Traceback (most recent call last)
<ipython-input-27-754225493c2e> in <module>
1 for i in range(len(rgb_val)):
2 downSample.append(resize(rgb_val[i], ((rgb_val[i].shape[0]) / 16, (rgb_val[i].shape[1]) / 16),
----> 3 anti_aliasing=True))
4
5 # downSample.append(resize(i, i.shape[0]/4, i.shape[1]/4), anti_aliasing = True)
~/anaconda3/lib/python3.7/site-packages/skimage/transform/_warps.py in resize(image, output_shape, order, mode, cval, clip, preserve_range, anti_aliasing, anti_aliasing_sigma)
167 out = warp(image, tform, output_shape=output_shape, order=order,
168 mode=mode, cval=cval, clip=clip,
--> 169 preserve_range=preserve_range)
170
171 else: # n-dimensional interpolation
~/anaconda3/lib/python3.7/site-packages/skimage/transform/_warps.py in warp(image, inverse_map, map_args, output_shape, order, mode, cval, clip, preserve_range)
805 output_shape = input_shape
806 else:
--> 807 output_shape = safe_as_int(output_shape)
808
809 warped = None
~/anaconda3/lib/python3.7/site-packages/skimage/_shared/utils.py in safe_as_int(val, atol)
149 except AssertionError:
150 raise ValueError("Integer argument required but received "
--> 151 "{0}, check inputs.".format(val))
152
153 return np.round(val).astype(np.int64)
ValueError: Integer argument required but received (134.25, 186.5, 3), check inputs.
这是实际结果：
#!/usr/bin/env pytest
import pytest
@pytest.mark.xfail(reason="Reason of failure")
def test_1():
pytest.fail("This will fail here")
@pytest.mark.skip(reason="Reason of skipping")
def test_2():
pytest.fail("This will fail here")
但是我希望得到类似的东西
pytest test_file.py -rsx
============================= test session starts =============================
platform linux -- Python 3.5.2, pytest-4.4.1, py-1.7.0, pluggy-0.9.0
rootdir: /home/ashot/questions
collected 2 items
test_file.py xs [100%]
=========================== short test summary info ===========================
SKIPPED [1] test_file.py:9: Reason of skipping
XFAIL test_file.py::test_1
Reason of failure
==================== 1 skipped, 1 xfailed in 0.05 seconds =====================
答案 0 :(得分：0)
您有两种可能的方法来实现这一目标。快速而肮脏的方法：只需在您的_pytest.skipping.show_xfailed中重新定义test_file.py：
import _pytest
def custom_show_xfailed(terminalreporter, lines):
xfailed = terminalreporter.stats.get("xfailed")
if xfailed:
for rep in xfailed:
pos = terminalreporter.config.cwd_relative_nodeid(rep.nodeid)
reason = rep.wasxfail
s = "XFAIL %s" % (pos,)
if reason:
s += ": " + str(reason)
lines.append(s)
# show_xfailed_bkp = _pytest.skipping.show_xfailed
_pytest.skipping.show_xfailed = custom_show_xfailed
... your tests
（不是这样）干净的方法：在conftest.py所在的目录中创建一个test_file.py文件，并添加一个钩子：
import pytest
import _pytest
def custom_show_xfailed(terminalreporter, lines):
xfailed = terminalreporter.stats.get("xfailed")
if xfailed:
for rep in xfailed:
pos = terminalreporter.config.cwd_relative_nodeid(rep.nodeid)
reason = rep.wasxfail
s = "XFAIL %s" % (pos,)
if reason:
s += ": " + str(reason)
lines.append(s)
@pytest.hookimpl(tryfirst=True)
def pytest_terminal_summary(terminalreporter):
tr = terminalreporter
if not tr.reportchars:
return
lines = []
for char in tr.reportchars:
if char == "x":
custom_show_xfailed(terminalreporter, lines)
elif char == "X":
_pytest.skipping.show_xpassed(terminalreporter, lines)
elif char in "fF":
_pytest.skipping.show_simple(terminalreporter, lines, 'failed', "FAIL %s")
elif char in "sS":
_pytest.skipping.show_skipped(terminalreporter, lines)
elif char == "E":
_pytest.skipping.show_simple(terminalreporter, lines, 'error', "ERROR %s")
elif char == 'p':
_pytest.skipping.show_simple(terminalreporter, lines, 'passed', "PASSED %s")
if lines:
tr._tw.sep("=", "short test summary info")
for line in lines:
tr._tw.line(line)
tr.reportchars = [] # to avoid further output
第二种方法过于矫kill过正，因为您必须重新定义整个pytest_terminal_summary。
答案 1 :(得分：0)
感谢this answer，我发现以下最适合我的解决方案。
我已经在测试套件的根目录中创建了conftest.py文件，其内容如下：
import _pytest.skipping as s
def show_xfailed(tr, lines):
for rep in tr.stats.get("xfailed", []):
pos = tr.config.cwd_relative_nodeid(rep.nodeid)
reason = rep.wasxfail
s = "XFAIL\t%s" % pos
if reason:
s += ": " + str(reason)
lines.append(s)
s.REPORTCHAR_ACTIONS["x"] = show_xfailed
def show_skipped(tr, lines):
for rep in tr.stats.get("skipped", []):
pos = tr.config.cwd_relative_nodeid(rep.nodeid)
reason = rep.longrepr[-1]
if reason.startswith("Skipped: "):
reason = reason[9:]
verbose_word = s._get_report_str(tr.config, report=rep)
lines.append("%s\t%s: %s" % (verbose_word, pos, reason))
s.REPORTCHAR_ACTIONS["s"] = show_skipped
s.REPORTCHAR_ACTIONS["S"] = show_skipped
现在我要获得以下输出：
./test_file.py -rsx
============================= test session starts =============================
platform linux -- Python 3.5.2, pytest-4.4.1, py-1.7.0, pluggy-0.9.0
rootdir: /home/ashot/questions
collected 2 items
test_file.py xs [100%]
=========================== short test summary info ===========================
SKIPPED test_file.py::test_2: Reason of skipping
XFAIL test_file.py::test_1: Reason of failure
==================== 1 skipped, 1 xfailed in 0.05 seconds =====================