我们从Python开源项目中,提取了以下24个代码示例,用于说明如何使用pipes.SINK。
def testReadOpenSink(self): # check calling open('r') on a pipe ending with # a sink raises ValueError t = pipes.Template() t.append('boguscmd', pipes.SINK) self.assertRaises(ValueError, t.open, 'bogusfile', 'r')
def testBadAppendOptions(self): t = pipes.Template() # try a non-string command self.assertRaises(TypeError, t.append, 7, pipes.STDIN_STDOUT) # try a type that isn't recognized self.assertRaises(ValueError, t.append, 'boguscmd', 'xx') # shouldn't be able to append a source self.assertRaises(ValueError, t.append, 'boguscmd', pipes.SOURCE) # check appending two sinks t = pipes.Template() t.append('boguscmd', pipes.SINK) self.assertRaises(ValueError, t.append, 'boguscmd', pipes.SINK) # command needing file input but with no $IN t = pipes.Template() self.assertRaises(ValueError, t.append, 'boguscmd $OUT', pipes.FILEIN_FILEOUT) t = pipes.Template() self.assertRaises(ValueError, t.append, 'boguscmd', pipes.FILEIN_STDOUT) # command needing file output but with no $OUT t = pipes.Template() self.assertRaises(ValueError, t.append, 'boguscmd $IN', pipes.FILEIN_FILEOUT) t = pipes.Template() self.assertRaises(ValueError, t.append, 'boguscmd', pipes.STDIN_FILEOUT)
def testBadPrependOptions(self): t = pipes.Template() # try a non-string command self.assertRaises(TypeError, t.prepend, 7, pipes.STDIN_STDOUT) # try a type that isn't recognized self.assertRaises(ValueError, t.prepend, 'tr a-z A-Z', 'xx') # shouldn't be able to prepend a sink self.assertRaises(ValueError, t.prepend, 'boguscmd', pipes.SINK) # check prepending two sources t = pipes.Template() t.prepend('boguscmd', pipes.SOURCE) self.assertRaises(ValueError, t.prepend, 'boguscmd', pipes.SOURCE) # command needing file input but with no $IN t = pipes.Template() self.assertRaises(ValueError, t.prepend, 'boguscmd $OUT', pipes.FILEIN_FILEOUT) t = pipes.Template() self.assertRaises(ValueError, t.prepend, 'boguscmd', pipes.FILEIN_STDOUT) # command needing file output but with no $OUT t = pipes.Template() self.assertRaises(ValueError, t.prepend, 'boguscmd $IN', pipes.FILEIN_FILEOUT) t = pipes.Template() self.assertRaises(ValueError, t.prepend, 'boguscmd', pipes.STDIN_FILEOUT)