160 lines
4.7 KiB
Python
160 lines
4.7 KiB
Python
import os, sys
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import py
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def test_dontreadfrominput():
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from py.__.io.stdcapture import DontReadFromInput
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f = DontReadFromInput()
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assert not f.isatty()
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py.test.raises(IOError, f.read)
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py.test.raises(IOError, f.readlines)
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py.test.raises(IOError, iter, f)
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py.test.raises(ValueError, f.fileno)
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class TestStdCapture:
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def getcapture(self, **kw):
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return py.io.StdCapture(**kw)
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def test_capturing_done_simple(self):
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cap = self.getcapture()
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print "hello world"
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print >>sys.stderr, "hello error"
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outfile, errfile = cap.done()
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assert outfile.read() == "hello world\n"
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assert errfile.read() == "hello error\n"
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def test_capturing_reset_simple(self):
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cap = self.getcapture()
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print "hello world"
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print >>sys.stderr, "hello error"
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out, err = cap.reset()
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assert out == "hello world\n"
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assert err == "hello error\n"
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def test_capturing_mixed(self):
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cap = self.getcapture(mixed=True)
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print "hello",
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print >>sys.stderr, "world",
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print >>sys.stdout, ".",
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out, err = cap.reset()
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assert out.strip() == "hello world ."
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assert not err
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def test_capturing_twice_error(self):
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cap = self.getcapture()
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print "hello"
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cap.reset()
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py.test.raises(EnvironmentError, "cap.reset()")
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def test_capturing_modify_sysouterr_in_between(self):
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oldout = sys.stdout
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olderr = sys.stderr
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cap = self.getcapture()
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print "hello",
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print >>sys.stderr, "world",
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sys.stdout = py.std.StringIO.StringIO()
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sys.stderr = py.std.StringIO.StringIO()
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print "not seen"
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print >>sys.stderr, "not seen"
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out, err = cap.reset()
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assert out == "hello"
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assert err == "world"
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assert sys.stdout == oldout
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assert sys.stderr == olderr
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def test_capturing_error_recursive(self):
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cap1 = self.getcapture()
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print "cap1"
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cap2 = self.getcapture()
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print "cap2"
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out2, err2 = cap2.reset()
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py.test.raises(EnvironmentError, "cap2.reset()")
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out1, err1 = cap1.reset()
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assert out1 == "cap1\n"
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assert out2 == "cap2\n"
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def test_just_out_capture(self):
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cap = self.getcapture(out=True, err=False)
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print >>sys.stdout, "hello"
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print >>sys.stderr, "world"
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out, err = cap.reset()
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assert out == "hello\n"
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assert not err
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def test_just_err_capture(self):
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cap = self.getcapture(out=False, err=True)
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print >>sys.stdout, "hello"
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print >>sys.stderr, "world"
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out, err = cap.reset()
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assert err == "world\n"
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assert not out
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def test_stdin_restored(self):
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old = sys.stdin
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cap = self.getcapture(in_=True)
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newstdin = sys.stdin
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out, err = cap.reset()
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assert newstdin != sys.stdin
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assert sys.stdin is old
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def test_stdin_nulled_by_default(self):
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print "XXX this test may well hang instead of crashing"
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print "XXX which indicates an error in the underlying capturing"
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print "XXX mechanisms"
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cap = self.getcapture()
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py.test.raises(IOError, "sys.stdin.read()")
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out, err = cap.reset()
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class TestStdCaptureFD(TestStdCapture):
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def getcapture(self, **kw):
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return py.io.StdCaptureFD(**kw)
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def test_intermingling(self):
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cap = self.getcapture()
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os.write(1, "1")
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print >>sys.stdout, 2,
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os.write(1, "3")
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os.write(2, "a")
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print >>sys.stderr, "b",
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os.write(2, "c")
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out, err = cap.reset()
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assert out == "123"
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assert err == "abc"
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def test_callcapture(self):
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def func(x, y):
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print x
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print >>py.std.sys.stderr, y
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return 42
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res, out, err = py.io.StdCaptureFD.call(func, 3, y=4)
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assert res == 42
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assert out.startswith("3")
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assert err.startswith("4")
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def test_capture_no_sys():
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capsys = py.io.StdCapture()
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try:
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cap = py.io.StdCaptureFD(patchsys=False)
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print >>sys.stdout, "hello"
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print >>sys.stderr, "world"
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os.write(1, "1")
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os.write(2, "2")
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out, err = cap.reset()
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assert out == "1"
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assert err == "2"
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finally:
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capsys.reset()
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def test_callcapture_nofd():
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def func(x, y):
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os.write(1, "hello")
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os.write(2, "hello")
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print x
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print >>py.std.sys.stderr, y
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return 42
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res, out, err = py.io.StdCapture.call(func, 3, y=4)
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assert res == 42
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assert out.startswith("3")
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assert err.startswith("4")
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