380 lines
12 KiB
Python
380 lines
12 KiB
Python
import pytest, py, os, sys
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from _pytest.capture import CaptureManager
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needsosdup = pytest.mark.xfail("not hasattr(os, 'dup')")
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class TestCaptureManager:
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def test_getmethod_default_no_fd(self, testdir, monkeypatch):
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config = testdir.parseconfig(testdir.tmpdir)
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assert config.getvalue("capture") is None
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capman = CaptureManager()
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monkeypatch.delattr(os, 'dup', raising=False)
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try:
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assert capman._getmethod(config, None) == "sys"
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finally:
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monkeypatch.undo()
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def test_configure_per_fspath(self, testdir):
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config = testdir.parseconfig(testdir.tmpdir)
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assert config.getvalue("capture") is None
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capman = CaptureManager()
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hasfd = hasattr(os, 'dup')
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if hasfd:
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assert capman._getmethod(config, None) == "fd"
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else:
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assert capman._getmethod(config, None) == "sys"
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for name in ('no', 'fd', 'sys'):
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if not hasfd and name == 'fd':
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continue
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sub = testdir.tmpdir.mkdir("dir" + name)
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sub.ensure("__init__.py")
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sub.join("conftest.py").write('option_capture = %r' % name)
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assert capman._getmethod(config, sub.join("test_hello.py")) == name
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@needsosdup
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@pytest.mark.multi(method=['no', 'fd', 'sys'])
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def test_capturing_basic_api(self, method):
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capouter = py.io.StdCaptureFD()
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old = sys.stdout, sys.stderr, sys.stdin
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try:
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capman = CaptureManager()
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# call suspend without resume or start
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outerr = capman.suspendcapture()
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outerr = capman.suspendcapture()
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assert outerr == ("", "")
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capman.resumecapture(method)
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print ("hello")
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out, err = capman.suspendcapture()
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if method == "no":
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assert old == (sys.stdout, sys.stderr, sys.stdin)
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else:
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assert out == "hello\n"
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capman.resumecapture(method)
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out, err = capman.suspendcapture()
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assert not out and not err
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finally:
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capouter.reset()
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@needsosdup
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def test_juggle_capturings(self, testdir):
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capouter = py.io.StdCaptureFD()
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try:
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config = testdir.parseconfig(testdir.tmpdir)
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capman = CaptureManager()
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capman.resumecapture("fd")
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pytest.raises(ValueError, 'capman.resumecapture("fd")')
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pytest.raises(ValueError, 'capman.resumecapture("sys")')
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os.write(1, "hello\n".encode('ascii'))
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out, err = capman.suspendcapture()
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assert out == "hello\n"
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capman.resumecapture("sys")
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os.write(1, "hello\n".encode('ascii'))
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py.builtin.print_("world", file=sys.stderr)
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out, err = capman.suspendcapture()
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assert not out
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assert err == "world\n"
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finally:
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capouter.reset()
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@pytest.mark.multi(method=['fd', 'sys'])
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def test_capturing_unicode(testdir, method):
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if sys.version_info >= (3,0):
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obj = "'b\u00f6y'"
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else:
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obj = "u'\u00f6y'"
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testdir.makepyfile("""
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# coding=utf8
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# taken from issue 227 from nosetests
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def test_unicode():
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import sys
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print (sys.stdout)
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print (%s)
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""" % obj)
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result = testdir.runpytest("--capture=%s" % method)
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result.stdout.fnmatch_lines([
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"*1 passed*"
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])
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@pytest.mark.multi(method=['fd', 'sys'])
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def test_capturing_bytes_in_utf8_encoding(testdir, method):
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testdir.makepyfile("""
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def test_unicode():
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print ('b\\u00f6y')
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""")
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result = testdir.runpytest("--capture=%s" % method)
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result.stdout.fnmatch_lines([
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"*1 passed*"
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])
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def test_collect_capturing(testdir):
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p = testdir.makepyfile("""
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print ("collect %s failure" % 13)
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import xyz42123
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""")
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines([
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"*Captured stdout*",
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"*collect 13 failure*",
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])
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class TestPerTestCapturing:
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def test_capture_and_fixtures(self, testdir):
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p = testdir.makepyfile("""
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def setup_module(mod):
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print ("setup module")
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def setup_function(function):
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print ("setup " + function.__name__)
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def test_func1():
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print ("in func1")
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assert 0
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def test_func2():
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print ("in func2")
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assert 0
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""")
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines([
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"setup module*",
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"setup test_func1*",
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"in func1*",
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"setup test_func2*",
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"in func2*",
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])
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@pytest.mark.xfail
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def test_capture_scope_cache(self, testdir):
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p = testdir.makepyfile("""
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import sys
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def setup_module(func):
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print ("module-setup")
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def setup_function(func):
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print ("function-setup")
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def test_func():
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print ("in function")
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assert 0
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def teardown_function(func):
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print ("in teardown")
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""")
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines([
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"*test_func():*",
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"*Captured stdout during setup*",
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"module-setup*",
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"function-setup*",
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"*Captured stdout*",
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"in teardown*",
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])
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def test_no_carry_over(self, testdir):
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p = testdir.makepyfile("""
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def test_func1():
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print ("in func1")
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def test_func2():
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print ("in func2")
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assert 0
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""")
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result = testdir.runpytest(p)
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s = result.stdout.str()
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assert "in func1" not in s
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assert "in func2" in s
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def test_teardown_capturing(self, testdir):
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p = testdir.makepyfile("""
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def setup_function(function):
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print ("setup func1")
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def teardown_function(function):
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print ("teardown func1")
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assert 0
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def test_func1():
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print ("in func1")
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pass
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""")
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines([
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'*teardown_function*',
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'*Captured stdout*',
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"setup func1*",
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"in func1*",
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"teardown func1*",
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#"*1 fixture failure*"
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])
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def test_teardown_final_capturing(self, testdir):
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p = testdir.makepyfile("""
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def teardown_module(mod):
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print ("teardown module")
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assert 0
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def test_func():
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pass
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""")
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines([
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"*def teardown_module(mod):*",
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"*Captured stdout*",
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"*teardown module*",
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"*1 error*",
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])
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def test_capturing_outerr(self, testdir):
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p1 = testdir.makepyfile("""
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import sys
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def test_capturing():
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print (42)
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sys.stderr.write(str(23))
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def test_capturing_error():
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print (1)
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sys.stderr.write(str(2))
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raise ValueError
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""")
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result = testdir.runpytest(p1)
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result.stdout.fnmatch_lines([
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"*test_capturing_outerr.py .F",
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"====* FAILURES *====",
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"____*____",
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"*test_capturing_outerr.py:8: ValueError",
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"*--- Captured stdout ---*",
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"1",
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"*--- Captured stderr ---*",
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"2",
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])
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class TestLoggingInteraction:
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def test_logging_stream_ownership(self, testdir):
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p = testdir.makepyfile("""
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def test_logging():
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import logging
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import pytest
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stream = py.io.TextIO()
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logging.basicConfig(stream=stream)
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stream.close() # to free memory/release resources
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""")
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result = testdir.runpytest(p)
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result.stderr.str().find("atexit") == -1
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def test_logging_and_immediate_setupteardown(self, testdir):
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p = testdir.makepyfile("""
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import logging
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def setup_function(function):
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logging.warn("hello1")
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def test_logging():
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logging.warn("hello2")
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assert 0
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def teardown_function(function):
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logging.warn("hello3")
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assert 0
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""")
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for optargs in (('--capture=sys',), ('--capture=fd',)):
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print (optargs)
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result = testdir.runpytest(p, *optargs)
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s = result.stdout.str()
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result.stdout.fnmatch_lines([
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"*WARN*hello3", # errors show first!
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"*WARN*hello1",
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"*WARN*hello2",
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])
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# verify proper termination
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assert "closed" not in s
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def test_logging_and_crossscope_fixtures(self, testdir):
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p = testdir.makepyfile("""
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import logging
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def setup_module(function):
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logging.warn("hello1")
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def test_logging():
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logging.warn("hello2")
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assert 0
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def teardown_module(function):
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logging.warn("hello3")
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assert 0
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""")
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for optargs in (('--capture=sys',), ('--capture=fd',)):
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print (optargs)
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result = testdir.runpytest(p, *optargs)
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s = result.stdout.str()
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result.stdout.fnmatch_lines([
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"*WARN*hello3", # errors come first
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"*WARN*hello1",
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"*WARN*hello2",
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])
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# verify proper termination
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assert "closed" not in s
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class TestCaptureFuncarg:
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def test_std_functional(self, testdir):
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reprec = testdir.inline_runsource("""
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def test_hello(capsys):
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print (42)
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out, err = capsys.readouterr()
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assert out.startswith("42")
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""")
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reprec.assertoutcome(passed=1)
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@needsosdup
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def test_stdfd_functional(self, testdir):
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reprec = testdir.inline_runsource("""
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def test_hello(capfd):
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import os
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os.write(1, "42".encode('ascii'))
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out, err = capfd.readouterr()
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assert out.startswith("42")
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capfd.close()
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""")
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reprec.assertoutcome(passed=1)
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def test_partial_setup_failure(self, testdir):
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p = testdir.makepyfile("""
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def test_hello(capsys, missingarg):
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pass
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""")
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines([
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"*test_partial_setup_failure*",
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"*1 error*",
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])
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@needsosdup
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def test_keyboardinterrupt_disables_capturing(self, testdir):
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p = testdir.makepyfile("""
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def test_hello(capfd):
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import os
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os.write(1, str(42).encode('ascii'))
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raise KeyboardInterrupt()
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""")
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines([
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"*KeyboardInterrupt*"
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])
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assert result.ret == 2
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def test_setup_failure_does_not_kill_capturing(testdir):
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sub1 = testdir.mkpydir("sub1")
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sub1.join("conftest.py").write(py.code.Source("""
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def pytest_runtest_setup(item):
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raise ValueError(42)
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"""))
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sub1.join("test_mod.py").write("def test_func1(): pass")
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result = testdir.runpytest(testdir.tmpdir, '--traceconfig')
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result.stdout.fnmatch_lines([
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"*ValueError(42)*",
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"*1 error*"
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])
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def test_fdfuncarg_skips_on_no_osdup(testdir):
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testdir.makepyfile("""
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import os
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if hasattr(os, 'dup'):
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del os.dup
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def test_hello(capfd):
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pass
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""")
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result = testdir.runpytest("--capture=no")
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result.stdout.fnmatch_lines([
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"*1 skipped*"
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])
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