def test_parse_invalid_script(self):
script = "Python cannot evaluate this string"
p = PythonParams(script)
def resolver(stack, key):
return True
with self.assertRaises(Exception):
p.parse(resolver)
def test_parse_resolution_error(self):
script = """{
'Foo': 'Bar',
'Output': GetOutput('stack', 'Output'),
}"""
p = PythonParams(script)
def resolver(stack, key):
raise ResolutionError(stack, key, "error")
with self.assertRaises(Exception):
p.parse(resolver)
def test_supports_source(self):
self.assertFalse(PythonParams.supports_source(
ParameterArgument(
kind='cli',
value='ParameterKey=Foo,ParameterValue=file://Bar.py'
)
))
self.assertFalse(PythonParams.supports_source(
ParameterArgument(
kind='file',
value='/path/to/params.json'
)
))
self.assertTrue(PythonParams.supports_source(
ParameterArgument(
kind='file',
value='/path/to/params.py'
)
))
def test_parse(self):
script = """{
'Foo': 'Bar',
'Output': GetOutput('stack', 'Output'),
'Complex': str('foo' + GetOutput('stack', 'key')),
}"""
p = PythonParams(script)
# Stub a resolver
outputs = {'stack': {'Output': '42', 'key': 'bar'}}
def resolver(stack, key):
return outputs[stack][key]
params = p.parse(resolver)
self.assertEqual(params['Foo'], 'Bar')
self.assertEqual(params['Output'], '42')
self.assertEqual(params['Complex'], 'foobar')