def testPipePipes(self): #{{{
'''Is bad to try and pipe pipes'''
p1 = cmd('ls', datadir) | cmd('grep', 'a')
p2 = cmd('ls', datadir) | cmd('grep', 'ariel') | cmd('sed', '-e', 's/a/O/g')
msg = re.compile('Cannot send data to an already established command pipe')
self.assertRaisesEx(InvalidDestinationError, p1.__or__, p2, exc_pattern=msg)
def testPipeFourCommands(self): #{{{
'''Create pipes between four commands'''
p = cmd('ls', datadir) | cmd('grep', 'a') | cmd('grep', 'ariel') | cmd('sed', '-e', 's/a/O/g')
res = p().replace('\n', '')
self.assertEqual(res, 'Oriel')
def testEnv(self): #{{{
'''Test finding binary within executable path'''
c = cmd('ls', datadir)
res = ' '.join(c(buffer=False)).replace('\n', '')
self.assertEqual(set(res.split(' ')), set(['a', 'ariel', 'b', 'c']))
def testPipeTwoCommands(self): #{{{
'''Create pipe between two commands'''
p = cmd('ls', datadir) | cmd('grep', 'a')
res = set(n for n in p().replace('\n', ' ').split(' ') if n)
self.assertEqual(res, set(['a', 'ariel']))
def testSingleCall(self): #{{{
'''Test absolute path to executable'''
c = cmd('/bin/ls', datadir)
res = ' '.join(c(buffer=False)).replace('\n', '')
self.assertEqual(set(res.split(' ')), set(['a', 'ariel', 'b', 'c']))
