def test_run_command_failure(self, subprocess):
subprocess.call.return_value = 1
mixin = CommandProcessorMixin(
output='js/processed.js',
command='cat {input} > {output}',
)
with self.assertRaises(RuntimeError):
mixin.run_command('input.txt')
def test_run_command(self, subprocess):
subprocess.call.return_value = 0
storage = MagicMock()
storage.path.side_effect = lambda f: os.path.join('/prefix/path/', f)
mixin = CommandProcessorMixin(
output='js/processed.js',
command='cat {input} > {output}',
storage=storage,
)
mixin.run_command('input.txt')
subprocess.call.assert_called_with(
['cat', 'input.txt', '>', '/prefix/path/js/processed.js'])
def test_get_command(self):
mixin = CommandProcessorMixin()
mixin.command = 'cat {input} > {output}'
command = mixin.get_command(
input='/an/input/file.txt', output='output.txt')
self.assertEqual(command, 'cat /an/input/file.txt > output.txt')
def test_bails_on_no_input(self, subprocess):
mixin = CommandProcessorMixin(require_input=True)
mixin.run_command('')
self.assertFalse(subprocess.call.called)