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LastFailed now creates .cache only when needed. Fixes #1342

This commit is contained in:
Dmitry Malinovsky 2016-02-16 11:42:04 +06:00
parent bed56e504a
commit e4d361b093
2 changed files with 23 additions and 7 deletions
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2
_pytest/cacheprovider.py
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@ -149,6 +149,8 @@ class LFPlugin:
config = self.config config = self.config
if config.getvalue("cacheshow") or hasattr(config, "slaveinput"): if config.getvalue("cacheshow") or hasattr(config, "slaveinput"):
return return
prev_failed = config.cache.get("cache/lastfailed", None) is not None
if (session.items and prev_failed) or self.lastfailed:
config.cache.set("cache/lastfailed", self.lastfailed) config.cache.set("cache/lastfailed", self.lastfailed)

26
testing/test_cache.py
View File

@ -46,12 +46,12 @@ class TestNewAPI:
def test_cache_failure_warns(self, testdir): def test_cache_failure_warns(self, testdir):
testdir.tmpdir.ensure_dir('.cache').chmod(0) testdir.tmpdir.ensure_dir('.cache').chmod(0)
testdir.makepyfile(""" testdir.makepyfile("""
def test_pass(): def test_error():
pass raise Exception
""") """)
result = testdir.runpytest('-rw') result = testdir.runpytest('-rw')
assert result.ret == 0 assert result.ret == 1
result.stdout.fnmatch_lines([ result.stdout.fnmatch_lines([
"*could not create cache path*", "*could not create cache path*",
"*1 pytest-warnings*", "*1 pytest-warnings*",
@ -266,7 +266,7 @@ class TestLastFailed:
""") """)
config = testdir.parseconfigure() config = testdir.parseconfigure()
lastfailed = config.cache.get("cache/lastfailed", -1) lastfailed = config.cache.get("cache/lastfailed", -1)
assert not lastfailed assert lastfailed == -1
def test_non_serializable_parametrize(self, testdir): def test_non_serializable_parametrize(self, testdir):
"""Test that failed parametrized tests with unmarshable parameters """Test that failed parametrized tests with unmarshable parameters
@ -305,7 +305,7 @@ class TestLastFailed:
return lastfailed return lastfailed
lastfailed = rlf(fail_import=0, fail_run=0) lastfailed = rlf(fail_import=0, fail_run=0)
assert not lastfailed assert lastfailed == -1
lastfailed = rlf(fail_import=1, fail_run=0) lastfailed = rlf(fail_import=1, fail_run=0)
assert list(lastfailed) == ['test_maybe.py'] assert list(lastfailed) == ['test_maybe.py']
@ -347,7 +347,7 @@ class TestLastFailed:
return result, lastfailed return result, lastfailed
result, lastfailed = rlf(fail_import=0, fail_run=0) result, lastfailed = rlf(fail_import=0, fail_run=0)
assert not lastfailed assert lastfailed == -1
result.stdout.fnmatch_lines([ result.stdout.fnmatch_lines([
'*3 passed*', '*3 passed*',
]) ])
@ -370,3 +370,17 @@ class TestLastFailed:
result.stdout.fnmatch_lines([ result.stdout.fnmatch_lines([
'*2 passed*', '*2 passed*',
]) ])
def test_lastfailed_creates_cache_when_needed(self, testdir):
# Issue #1342
testdir.makepyfile(test_empty='')
testdir.runpytest('-q', '--lf')
assert not os.path.exists('.cache')
testdir.makepyfile(test_successful='def test_success():\n assert True')
testdir.runpytest('-q', '--lf')
assert not os.path.exists('.cache')
testdir.makepyfile(test_errored='def test_error():\n assert False')
testdir.runpytest('-q', '--lf')
assert os.path.exists('.cache')