ansible/test/units/parsing/yaml/test_loader.py

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# coding: utf-8
# (c) 2015, Toshio Kuratomi <tkuratomi@ansible.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
from io import StringIO
from collections import Sequence, Set, Mapping
from ansible.compat.tests import unittest
from ansible import errors
from ansible.module_utils.six import text_type, binary_type
from ansible.parsing.yaml.loader import AnsibleLoader
from ansible.parsing import vault
from ansible.parsing.yaml.objects import AnsibleVaultEncryptedUnicode
from ansible.parsing.yaml.dumper import AnsibleDumper
from units.mock.yaml_helper import YamlTestUtils
try:
from _yaml import ParserError
from _yaml import ScannerError
except ImportError:
from yaml.parser import ParserError
from yaml.scanner import ScannerError
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class NameStringIO(StringIO):
"""In py2.6, StringIO doesn't let you set name because a baseclass has it
as readonly property"""
name = None
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def __init__(self, *args, **kwargs):
super(NameStringIO, self).__init__(*args, **kwargs)
class TestAnsibleLoaderBasic(unittest.TestCase):
def setUp(self):
pass
def tearDown(self):
pass
def test_parse_number(self):
stream = StringIO(u"""
1
""")
loader = AnsibleLoader(stream, 'myfile.yml')
data = loader.get_single_data()
self.assertEqual(data, 1)
# No line/column info saved yet
def test_parse_string(self):
stream = StringIO(u"""
Ansible
""")
loader = AnsibleLoader(stream, 'myfile.yml')
data = loader.get_single_data()
self.assertEqual(data, u'Ansible')
self.assertIsInstance(data, text_type)
self.assertEqual(data.ansible_pos, ('myfile.yml', 2, 17))
def test_parse_utf8_string(self):
stream = StringIO(u"""
Cafè Eñyei
""")
loader = AnsibleLoader(stream, 'myfile.yml')
data = loader.get_single_data()
self.assertEqual(data, u'Cafè Eñyei')
self.assertIsInstance(data, text_type)
self.assertEqual(data.ansible_pos, ('myfile.yml', 2, 17))
def test_parse_dict(self):
stream = StringIO(u"""
webster: daniel
oed: oxford
""")
loader = AnsibleLoader(stream, 'myfile.yml')
data = loader.get_single_data()
self.assertEqual(data, {'webster': 'daniel', 'oed': 'oxford'})
self.assertEqual(len(data), 2)
self.assertIsInstance(list(data.keys())[0], text_type)
self.assertIsInstance(list(data.values())[0], text_type)
# Beginning of the first key
self.assertEqual(data.ansible_pos, ('myfile.yml', 2, 17))
self.assertEqual(data[u'webster'].ansible_pos, ('myfile.yml', 2, 26))
self.assertEqual(data[u'oed'].ansible_pos, ('myfile.yml', 3, 22))
def test_parse_list(self):
stream = StringIO(u"""
- a
- b
""")
loader = AnsibleLoader(stream, 'myfile.yml')
data = loader.get_single_data()
self.assertEqual(data, [u'a', u'b'])
self.assertEqual(len(data), 2)
self.assertIsInstance(data[0], text_type)
self.assertEqual(data.ansible_pos, ('myfile.yml', 2, 17))
self.assertEqual(data[0].ansible_pos, ('myfile.yml', 2, 19))
self.assertEqual(data[1].ansible_pos, ('myfile.yml', 3, 19))
def test_parse_short_dict(self):
stream = StringIO(u"""{"foo": "bar"}""")
loader = AnsibleLoader(stream, 'myfile.yml')
data = loader.get_single_data()
self.assertEqual(data, dict(foo=u'bar'))
self.assertEqual(data.ansible_pos, ('myfile.yml', 1, 1))
self.assertEqual(data[u'foo'].ansible_pos, ('myfile.yml', 1, 9))
stream = StringIO(u"""foo: bar""")
loader = AnsibleLoader(stream, 'myfile.yml')
data = loader.get_single_data()
self.assertEqual(data, dict(foo=u'bar'))
self.assertEqual(data.ansible_pos, ('myfile.yml', 1, 1))
self.assertEqual(data[u'foo'].ansible_pos, ('myfile.yml', 1, 6))
def test_error_conditions(self):
stream = StringIO(u"""{""")
loader = AnsibleLoader(stream, 'myfile.yml')
self.assertRaises(ParserError, loader.get_single_data)
def test_tab_error(self):
stream = StringIO(u"""---\nhosts: localhost\nvars:\n foo: bar\n\tblip: baz""")
loader = AnsibleLoader(stream, 'myfile.yml')
self.assertRaises(ScannerError, loader.get_single_data)
def test_front_matter(self):
stream = StringIO(u"""---\nfoo: bar""")
loader = AnsibleLoader(stream, 'myfile.yml')
data = loader.get_single_data()
self.assertEqual(data, dict(foo=u'bar'))
self.assertEqual(data.ansible_pos, ('myfile.yml', 2, 1))
self.assertEqual(data[u'foo'].ansible_pos, ('myfile.yml', 2, 6))
# Initial indent (See: #6348)
stream = StringIO(u""" - foo: bar\n baz: qux""")
loader = AnsibleLoader(stream, 'myfile.yml')
data = loader.get_single_data()
self.assertEqual(data, [{u'foo': u'bar', u'baz': u'qux'}])
self.assertEqual(data.ansible_pos, ('myfile.yml', 1, 2))
self.assertEqual(data[0].ansible_pos, ('myfile.yml', 1, 4))
self.assertEqual(data[0][u'foo'].ansible_pos, ('myfile.yml', 1, 9))
self.assertEqual(data[0][u'baz'].ansible_pos, ('myfile.yml', 2, 9))
class TestAnsibleLoaderVault(unittest.TestCase, YamlTestUtils):
def setUp(self):
self.vault_password = "hunter42"
self.vault = vault.VaultLib(self.vault_password)
def test_wrong_password(self):
plaintext = u"Ansible"
bob_password = "this is a different password"
bobs_vault = vault.VaultLib(bob_password)
ciphertext = bobs_vault.encrypt(plaintext)
try:
self.vault.decrypt(ciphertext)
except Exception as e:
self.assertIsInstance(e, errors.AnsibleError)
self.assertEqual(e.message, 'Decryption failed')
def _encrypt_plaintext(self, plaintext):
# Construct a yaml repr of a vault by hand
vaulted_var_bytes = self.vault.encrypt(plaintext)
# add yaml tag
vaulted_var = vaulted_var_bytes.decode()
lines = vaulted_var.splitlines()
lines2 = []
for line in lines:
lines2.append(' %s' % line)
vaulted_var = '\n'.join(lines2)
tagged_vaulted_var = u"""!vault |\n%s""" % vaulted_var
return tagged_vaulted_var
def _build_stream(self, yaml_text):
stream = NameStringIO(yaml_text)
stream.name = 'my.yml'
return stream
def _loader(self, stream):
return AnsibleLoader(stream, vault_password=self.vault_password)
def _load_yaml(self, yaml_text, password):
stream = self._build_stream(yaml_text)
loader = self._loader(stream)
data_from_yaml = loader.get_single_data()
return data_from_yaml
def test_dump_load_cycle(self):
avu = AnsibleVaultEncryptedUnicode.from_plaintext('The plaintext for test_dump_load_cycle.', vault=self.vault)
self._dump_load_cycle(avu)
def test_embedded_vault_from_dump(self):
avu = AnsibleVaultEncryptedUnicode.from_plaintext('setec astronomy', vault=self.vault)
blip = {'stuff1': [{'a dict key': 24},
{'shhh-ssh-secrets': avu,
'nothing to see here': 'move along'}],
'another key': 24.1}
blip = ['some string', 'another string', avu]
stream = NameStringIO()
self._dump_stream(blip, stream, dumper=AnsibleDumper)
print(stream.getvalue())
stream.seek(0)
stream.seek(0)
loader = self._loader(stream)
data_from_yaml = loader.get_data()
stream2 = NameStringIO(u'')
# verify we can dump the object again
self._dump_stream(data_from_yaml, stream2, dumper=AnsibleDumper)
def test_embedded_vault(self):
plaintext_var = u"""This is the plaintext string."""
tagged_vaulted_var = self._encrypt_plaintext(plaintext_var)
another_vaulted_var = self._encrypt_plaintext(plaintext_var)
different_var = u"""A different string that is not the same as the first one."""
different_vaulted_var = self._encrypt_plaintext(different_var)
yaml_text = u"""---\nwebster: daniel\noed: oxford\nthe_secret: %s\nanother_secret: %s\ndifferent_secret: %s""" % (tagged_vaulted_var,
another_vaulted_var,
different_vaulted_var)
data_from_yaml = self._load_yaml(yaml_text, self.vault_password)
vault_string = data_from_yaml['the_secret']
self.assertEquals(plaintext_var, data_from_yaml['the_secret'])
test_dict = {}
test_dict[vault_string] = 'did this work?'
self.assertEquals(vault_string.data, vault_string)
# This looks weird and useless, but the object in question has a custom __eq__
self.assertEquals(vault_string, vault_string)
another_vault_string = data_from_yaml['another_secret']
different_vault_string = data_from_yaml['different_secret']
self.assertEquals(vault_string, another_vault_string)
self.assertNotEquals(vault_string, different_vault_string)
# More testing of __eq__/__ne__
self.assertTrue('some string' != vault_string)
self.assertNotEquals('some string', vault_string)
# Note this is a compare of the str/unicode of these, they are diferent types
# so we want to test self == other, and other == self etc
self.assertEquals(plaintext_var, vault_string)
self.assertEquals(vault_string, plaintext_var)
self.assertFalse(plaintext_var != vault_string)
self.assertFalse(vault_string != plaintext_var)
class TestAnsibleLoaderPlay(unittest.TestCase):
def setUp(self):
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stream = NameStringIO(u"""
- hosts: localhost
vars:
number: 1
string: Ansible
utf8_string: Cafè Eñyei
dictionary:
webster: daniel
oed: oxford
list:
- a
- b
- 1
- 2
tasks:
- name: Test case
ping:
data: "{{ utf8_string }}"
- name: Test 2
ping:
data: "Cafè Eñyei"
- name: Test 3
command: "printf 'Cafè Eñyei\\n'"
""")
self.play_filename = '/path/to/myplay.yml'
stream.name = self.play_filename
self.loader = AnsibleLoader(stream)
self.data = self.loader.get_single_data()
def tearDown(self):
pass
def test_data_complete(self):
self.assertEqual(len(self.data), 1)
self.assertIsInstance(self.data, list)
self.assertEqual(frozenset(self.data[0].keys()), frozenset((u'hosts', u'vars', u'tasks')))
self.assertEqual(self.data[0][u'hosts'], u'localhost')
self.assertEqual(self.data[0][u'vars'][u'number'], 1)
self.assertEqual(self.data[0][u'vars'][u'string'], u'Ansible')
self.assertEqual(self.data[0][u'vars'][u'utf8_string'], u'Cafè Eñyei')
self.assertEqual(self.data[0][u'vars'][u'dictionary'], {
u'webster': u'daniel',
u'oed': u'oxford'
})
self.assertEqual(self.data[0][u'vars'][u'list'], [u'a', u'b', 1, 2])
self.assertEqual(self.data[0][u'tasks'], [
{u'name': u'Test case', u'ping': {u'data': u'{{ utf8_string }}'}},
{u'name': u'Test 2', u'ping': {u'data': u'Cafè Eñyei'}},
{u'name': u'Test 3', u'command': u'printf \'Cafè Eñyei\n\''},
])
def walk(self, data):
# Make sure there's no str in the data
self.assertNotIsInstance(data, binary_type)
# Descend into various container types
if isinstance(data, text_type):
# strings are a sequence so we have to be explicit here
return
elif isinstance(data, (Sequence, Set)):
for element in data:
self.walk(element)
elif isinstance(data, Mapping):
for k, v in data.items():
self.walk(k)
self.walk(v)
# Scalars were all checked so we're good to go
return
def test_no_str_in_data(self):
# Checks that no strings are str type
self.walk(self.data)
def check_vars(self):
# Numbers don't have line/col information yet
# self.assertEqual(self.data[0][u'vars'][u'number'].ansible_pos, (self.play_filename, 4, 21))
self.assertEqual(self.data[0][u'vars'][u'string'].ansible_pos, (self.play_filename, 5, 29))
self.assertEqual(self.data[0][u'vars'][u'utf8_string'].ansible_pos, (self.play_filename, 6, 34))
self.assertEqual(self.data[0][u'vars'][u'dictionary'].ansible_pos, (self.play_filename, 8, 23))
self.assertEqual(self.data[0][u'vars'][u'dictionary'][u'webster'].ansible_pos, (self.play_filename, 8, 32))
self.assertEqual(self.data[0][u'vars'][u'dictionary'][u'oed'].ansible_pos, (self.play_filename, 9, 28))
self.assertEqual(self.data[0][u'vars'][u'list'].ansible_pos, (self.play_filename, 11, 23))
self.assertEqual(self.data[0][u'vars'][u'list'][0].ansible_pos, (self.play_filename, 11, 25))
self.assertEqual(self.data[0][u'vars'][u'list'][1].ansible_pos, (self.play_filename, 12, 25))
# Numbers don't have line/col info yet
# self.assertEqual(self.data[0][u'vars'][u'list'][2].ansible_pos, (self.play_filename, 13, 25))
# self.assertEqual(self.data[0][u'vars'][u'list'][3].ansible_pos, (self.play_filename, 14, 25))
def check_tasks(self):
#
# First Task
#
self.assertEqual(self.data[0][u'tasks'][0].ansible_pos, (self.play_filename, 16, 23))
self.assertEqual(self.data[0][u'tasks'][0][u'name'].ansible_pos, (self.play_filename, 16, 29))
self.assertEqual(self.data[0][u'tasks'][0][u'ping'].ansible_pos, (self.play_filename, 18, 25))
self.assertEqual(self.data[0][u'tasks'][0][u'ping'][u'data'].ansible_pos, (self.play_filename, 18, 31))
#
# Second Task
#
self.assertEqual(self.data[0][u'tasks'][1].ansible_pos, (self.play_filename, 20, 23))
self.assertEqual(self.data[0][u'tasks'][1][u'name'].ansible_pos, (self.play_filename, 20, 29))
self.assertEqual(self.data[0][u'tasks'][1][u'ping'].ansible_pos, (self.play_filename, 22, 25))
self.assertEqual(self.data[0][u'tasks'][1][u'ping'][u'data'].ansible_pos, (self.play_filename, 22, 31))
#
# Third Task
#
self.assertEqual(self.data[0][u'tasks'][2].ansible_pos, (self.play_filename, 24, 23))
self.assertEqual(self.data[0][u'tasks'][2][u'name'].ansible_pos, (self.play_filename, 24, 29))
self.assertEqual(self.data[0][u'tasks'][2][u'command'].ansible_pos, (self.play_filename, 25, 32))
def test_line_numbers(self):
# Check the line/column numbers are correct
# Note: Remember, currently dicts begin at the start of their first entry
self.assertEqual(self.data[0].ansible_pos, (self.play_filename, 2, 19))
self.assertEqual(self.data[0][u'hosts'].ansible_pos, (self.play_filename, 2, 26))
self.assertEqual(self.data[0][u'vars'].ansible_pos, (self.play_filename, 4, 21))
self.check_vars()
self.assertEqual(self.data[0][u'tasks'].ansible_pos, (self.play_filename, 16, 21))
self.check_tasks()