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Adding a data parsing class for v2

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This commit is contained in:
James Cammarata 2014-10-23 15:39:27 -05:00
parent c86851be2c
commit 7cb489eca3
12 changed files with 406 additions and 262 deletions
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99
v2/ansible/errors/__init__.py
View file

@ -21,11 +21,30 @@ __metaclass__ = type
import os
from ansible.parsing.yaml.strings import *
class AnsibleError(Exception):
def __init__(self, message, obj=None):
# we import this here to prevent an import loop with errors
'''
This is the base class for all errors raised from Ansible code,
and can be instantiated with two optional parameters beyond the
error message to control whether detailed information is displayed
when the error occurred while parsing a data file of some kind.
Usage:
raise AnsibleError('some message here', obj=obj, show_content=True)
Where "obj" is some subclass of ansible.parsing.yaml.objects.AnsibleBaseYAMLObject,
which should be returned by the DataLoader() class.
'''
def __init__(self, message, obj=None, show_content=True):
# we import this here to prevent an import loop problem,
# since the objects code also imports ansible.errors
from ansible.parsing.yaml.objects import AnsibleBaseYAMLObject
self._obj = obj
self._show_content = show_content
if isinstance(self._obj, AnsibleBaseYAMLObject):
extended_error = self._get_extended_error()
if extended_error:
@ -36,22 +55,80 @@ class AnsibleError(Exception):
def __repr__(self):
return self.message
def _get_line_from_file(self, filename, line_number):
with open(filename, 'r') as f:
def _get_error_lines_from_file(self, file_name, line_number):
'''
Returns the line in the file which coresponds to the reported error
location, as well as the line preceeding it (if the error did not
occur on the first line), to provide context to the error.
'''
target_line = ''
prev_line = ''
with open(file_name, 'r') as f:
lines = f.readlines()
return lines[line_number]
target_line = lines[line_number]
if line_number > 0:
prev_line = lines[line_number - 1]
return (target_line, prev_line)
def _get_extended_error(self):
'''
Given an object reporting the location of the exception in a file, return
detailed information regarding it including:
* the line which caused the error as well as the one preceeding it
* causes and suggested remedies for common syntax errors
If this error was created with show_content=False, the reporting of content
is suppressed, as the file contents may be sensitive (ie. vault data).
'''
error_message = ''
try:
(src_file, line_number, col_number) = self._obj.get_position_info()
error_message += 'The error occurred on line %d of the file %s:\n' % (line_number, src_file)
if src_file not in ('<string>', '<unicode>'):
responsible_line = self._get_line_from_file(src_file, line_number - 1)
if responsible_line:
error_message += responsible_line
error_message += (' ' * (col_number-1)) + '^'
error_message += YAML_POSITION_DETAILS % (src_file, line_number, col_number)
if src_file not in ('<string>', '<unicode>') and self._show_content:
(target_line, prev_line) = self._get_error_lines_from_file(src_file, line_number - 1)
if target_line:
stripped_line = target_line.replace(" ","")
arrow_line = (" " * (col_number-1)) + "^"
error_message += "%s\n%s\n%s\n" % (prev_line.rstrip(), target_line.rstrip(), arrow_line)
# common error/remediation checking here:
# check for unquoted vars starting lines
if ('{{' in target_line and '}}' in target_line) and ('"{{' not in target_line or "'{{" not in target_line):
error_message += YAML_COMMON_UNQUOTED_VARIABLE_ERROR
# check for common dictionary mistakes
elif ":{{" in stripped_line and "}}" in stripped_line:
error_message += YAML_COMMON_DICT_ERROR
# check for common unquoted colon mistakes
elif len(target_line) and len(target_line) > 1 and len(target_line) > col_number and target_line[col_number] == ":" and target_line.count(':') > 1:
error_message += YAML_COMMON_UNQUOTED_COLON_ERROR
# otherwise, check for some common quoting mistakes
else:
parts = target_line.split(":")
if len(parts) > 1:
middle = parts[1].strip()
match = False
unbalanced = False
if middle.startswith("'") and not middle.endswith("'"):
match = True
elif middle.startswith('"') and not middle.endswith('"'):
match = True
if len(middle) > 0 and middle[0] in [ '"', "'" ] and middle[-1] in [ '"', "'" ] and target_line.count("'") > 2 or target_line.count('"') > 2:
unbalanced = True
if match:
error_message += YAML_COMMON_PARTIALLY_QUOTED_LINE_ERROR
if unbalanced:
error_message += YAML_COMMON_UNBALANCED_QUOTES_ERROR
except IOError:
error_message += '\n(could not open file to display line)'
except IndexError:

22
v2/ansible/parsing/__init__.py
View file

@ -19,25 +19,3 @@
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import json
from ansible.errors import AnsibleParserError, AnsibleInternalError
from ansible.parsing.vault import VaultLib
from ansible.parsing.yaml import safe_load
def load(data):
if hasattr(data, 'read') and hasattr(data.read, '__call__'):
data = data.read()
if isinstance(data, basestring):
try:
try:
return json.loads(data)
except:
return safe_load(data)
except:
raise AnsibleParserError("data was not valid yaml")
raise AnsibleInternalError("expected file or string, got %s" % type(data))

113
v2/ansible/parsing/yaml/__init__.py
View file

@ -19,9 +19,114 @@
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
from yaml import load
from ansible.parsing.yaml.loader import AnsibleLoader
import json
import os
def safe_load(stream):
''' implements yaml.safe_load(), except using our custom loader class '''
from yaml import load, YAMLError
from ansible.errors import AnsibleParserError
from ansible.parsing.vault import VaultLib
from ansible.parsing.yaml.loader import AnsibleLoader
from ansible.parsing.yaml.objects import AnsibleBaseYAMLObject
from ansible.parsing.yaml.strings import YAML_SYNTAX_ERROR
class DataLoader():
'''
The DataLoader class is used to load and parse YAML or JSON content,
either from a given file name or from a string that was previously
read in through other means. A Vault password can be specified, and
any vault-encrypted files will be decrypted.
Data read from files will also be cached, so the file will never be
read from disk more than once.
Usage:
dl = DataLoader()
(or)
dl = DataLoader(vault_password='foo')
ds = dl.load('...')
ds = dl.load_from_file('/path/to/file')
'''
_FILE_CACHE = dict()
def __init__(self, vault_password=None):
self._vault = VaultLib(password=vault_password)
def load(self, data, file_name='<string>', show_content=True):
'''
Creates a python datastructure from the given data, which can be either
a JSON or YAML string.
'''
try:
# we first try to load this data as JSON
return json.loads(data)
except:
try:
# if loading JSON failed for any reason, we go ahead
# and try to parse it as YAML instead
return self._safe_load(data)
except YAMLError, yaml_exc:
self._handle_error(yaml_exc, file_name, show_content)
def load_from_file(self, file_name):
''' Loads data from a file, which can contain either JSON or YAML. '''
# if the file has already been read in and cached, we'll
# return those results to avoid more file/vault operations
if file_name in self._FILE_CACHE:
return self._FILE_CACHE
# read the file contents and load the data structure from them
(file_data, show_content) = self._get_file_contents(file_name)
parsed_data = self.load(data=file_data, file_name=file_name, show_content=show_content)
# cache the file contents for next time
self._FILE_CACHE[file_name] = parsed_data
return parsed_data
def _safe_load(self, stream):
''' Implements yaml.safe_load(), except using our custom loader class. '''
return load(stream, AnsibleLoader)
def _get_file_contents(self, file_name):
'''
Reads the file contents from the given file name, and will decrypt them
if they are found to be vault-encrypted.
'''
if not os.path.exists(file_name) or not os.path.isfile(file_name):
raise AnsibleParserError("the file_name '%s' does not exist, or is not readable" % file_name)
show_content = True
try:
with open(file_name, 'r') as f:
data = f.read()
if self._vault.is_encrypted(data):
data = self._vault.decrypt(data)
show_content = False
return (data, show_content)
except (IOError, OSError) as e:
raise AnsibleParserError("an error occured while trying to read the file '%s': %s" % (file_name, str(e)))
def _handle_error(self, yaml_exc, file_name, show_content):
'''
Optionally constructs an object (AnsibleBaseYAMLObject) to encapsulate the
file name/position where a YAML exception occured, and raises an AnsibleParserError
to display the syntax exception information.
'''
# if the YAML exception contains a problem mark, use it to construct
# an object the error class can use to display the faulty line
err_obj = None
if hasattr(yaml_exc, 'problem_mark'):
err_obj = AnsibleBaseYAMLObject()
err_obj.set_position_info(file_name, yaml_exc.problem_mark.line + 1, yaml_exc.problem_mark.column + 1)
raise AnsibleParserError(YAML_SYNTAX_ERROR, obj=err_obj, show_content=show_content)

5
v2/ansible/parsing/yaml/objects.py
View file

@ -32,6 +32,11 @@ class AnsibleBaseYAMLObject:
def get_position_info(self):
return (self._data_source, self._line_number, self._column_number)
def set_position_info(self, src, line, col):
self._data_source = src
self._line_number = line
self._column_number = col
def copy_position_info(obj):
''' copies the position info from another object '''
assert isinstance(obj, AnsibleBaseYAMLObject)

118
v2/ansible/parsing/yaml/strings.py Normal file
View file

@ -0,0 +1,118 @@
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.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
__all__ = [
'YAML_SYNTAX_ERROR',
'YAML_POSITION_DETAILS',
'YAML_COMMON_DICT_ERROR',
'YAML_COMMON_UNQUOTED_VARIABLE_ERROR',
'YAML_COMMON_UNQUOTED_COLON_ERROR',
'YAML_COMMON_PARTIALLY_QUOTED_LINE_ERROR',
'YAML_COMMON_UNBALANCED_QUOTES_ERROR',
]
YAML_SYNTAX_ERROR = """\
Syntax Error while loading YAML.
"""
YAML_POSITION_DETAILS = """\
The error appears to have been in '%s': line %s, column %s,
but may actually be before there depending on the exact syntax problem.
"""
YAML_COMMON_DICT_ERROR = """\
This one looks easy to fix. YAML thought it was looking for the start of a
hash/dictionary and was confused to see a second "{". Most likely this was
meant to be an ansible template evaluation instead, so we have to give the
parser a small hint that we wanted a string instead. The solution here is to
just quote the entire value.
For instance, if the original line was:
app_path: {{ base_path }}/foo
It should be written as:
app_path: "{{ base_path }}/foo"
"""
YAML_COMMON_UNQUOTED_VARIABLE_ERROR = """\
We could be wrong, but this one looks like it might be an issue with
missing quotes. Always quote template expression brackets when they
start a value. For instance:
with_items:
- {{ foo }}
Should be written as:
with_items:
- "{{ foo }}"
"""
YAML_COMMON_UNQUOTED_COLON_ERROR = """\
This one looks easy to fix. There seems to be an extra unquoted colon in the line
and this is confusing the parser. It was only expecting to find one free
colon. The solution is just add some quotes around the colon, or quote the
entire line after the first colon.
For instance, if the original line was:
copy: src=file.txt dest=/path/filename:with_colon.txt
It can be written as:
copy: src=file.txt dest='/path/filename:with_colon.txt'
Or:
copy: 'src=file.txt dest=/path/filename:with_colon.txt'
"""
YAML_COMMON_PARTIALLY_QUOTED_LINE_ERROR = """\
This one looks easy to fix. It seems that there is a value started
with a quote, and the YAML parser is expecting to see the line ended
with the same kind of quote. For instance:
when: "ok" in result.stdout
Could be written as:
when: '"ok" in result.stdout'
Or equivalently:
when: "'ok' in result.stdout"
"""
YAML_COMMON_UNBALANCED_QUOTES_ERROR = """\
We could be wrong, but this one looks like it might be an issue with
unbalanced quotes. If starting a value with a quote, make sure the
line ends with the same set of quotes. For instance this arbitrary
example:
foo: "bad" "wolf"
Could be written as:
foo: '"bad" "wolf"'
"""

9
v2/ansible/playbook/base.py
View file

@ -25,14 +25,17 @@ from io import FileIO
from six import iteritems, string_types
from ansible.playbook.attribute import Attribute, FieldAttribute
from ansible.parsing import load
from ansible.parsing.yaml import DataLoader
class Base:
_tags = FieldAttribute(isa='list')
_when = FieldAttribute(isa='list')
def __init__(self):
def __init__(self, loader=DataLoader):
# the data loader class is used to parse data from strings and files
self._loader = loader
# each class knows attributes set upon it, see Task.py for example
self._attributes = dict()
@ -64,7 +67,7 @@ class Base:
assert ds is not None
if isinstance(ds, string_types) or isinstance(ds, FileIO):
ds = load(ds)
ds = self._loader.load(ds)
# we currently don't do anything with private attributes but may
# later decide to filter them out of 'ds' here.

11
v2/ansible/playbook/role.py
View file

@ -23,14 +23,11 @@ from six import iteritems, string_types
import os
from ansible.errors import AnsibleError
from ansible.parsing.yaml import DataLoader
from ansible.playbook.attribute import FieldAttribute
from ansible.playbook.base import Base
from ansible.playbook.block import Block
from ansible.errors import AnsibleError
# FIXME: this def was cruft from the old utils code, so we'll need
# to relocate it somewhere before we can use it
#from ansible.parsing import load_data_from_file
from ansible.parsing.yaml.objects import AnsibleBaseYAMLObject, AnsibleMapping
@ -48,10 +45,10 @@ class Role(Base):
_default_vars = FieldAttribute(isa='dict', default=dict())
_role_vars = FieldAttribute(isa='dict', default=dict())
def __init__(self, vault_password=None):
def __init__(self, vault_password=None, loader=DataLoader):
self._role_path = None
self._vault_password = vault_password
super(Role, self).__init__()
super(Role, self).__init__(loader=loader)
def __repr__(self):
return self.get_name()

5
v2/ansible/playbook/task.py
View file

@ -26,6 +26,7 @@ from ansible.errors import AnsibleError
from ansible.parsing.splitter import parse_kv
from ansible.parsing.mod_args import ModuleArgsParser
from ansible.parsing.yaml import DataLoader
from ansible.plugins import module_finder, lookup_finder
class Task(Base):
@ -85,11 +86,11 @@ class Task(Base):
_transport = FieldAttribute(isa='string')
_until = FieldAttribute(isa='list') # ?
def __init__(self, block=None, role=None):
def __init__(self, block=None, role=None, loader=DataLoader):
''' constructors a task, without the Task.load classmethod, it will be pretty blank '''
self._block = block
self._role = role
super(Task, self).__init__()
super(Task, self).__init__(loader)
def get_name(self):
''' return the name of the task '''

14
v2/test/errors/test_errors.py
View file

@ -30,7 +30,7 @@ from ansible.compat.tests.mock import mock_open, patch
class TestErrors(unittest.TestCase):
def setUp(self):
self.message = 'this is the error message'
self.message = 'This is the error message'
self.obj = AnsibleBaseYAMLObject()
@ -42,18 +42,18 @@ class TestErrors(unittest.TestCase):
self.assertEqual(e.message, self.message)
self.assertEqual(e.__repr__(), self.message)
@patch.object(AnsibleError, '_get_line_from_file')
@patch.object(AnsibleError, '_get_error_lines_from_file')
def test_error_with_object(self, mock_method):
self.obj._data_source = 'foo.yml'
self.obj._line_number = 1
self.obj._column_number = 1
mock_method.return_value = 'this is line 1\n'
mock_method.return_value = ('this is line 1\n', '')
e = AnsibleError(self.message, self.obj)
self.assertEqual(e.message, 'this is the error message\nThe error occurred on line 1 of the file foo.yml:\nthis is line 1\n^')
self.assertEqual(e.message, "This is the error message\nThe error appears to have been in 'foo.yml': line 1, column 1,\nbut may actually be before there depending on the exact syntax problem.\n\nthis is line 1\n^\n")
def test_error_get_line_from_file(self):
def test_get_error_lines_from_file(self):
m = mock_open()
m.return_value.readlines.return_value = ['this is line 1\n']
@ -63,12 +63,12 @@ class TestErrors(unittest.TestCase):
self.obj._line_number = 1
self.obj._column_number = 1
e = AnsibleError(self.message, self.obj)
self.assertEqual(e.message, 'this is the error message\nThe error occurred on line 1 of the file foo.yml:\nthis is line 1\n^')
self.assertEqual(e.message, "This is the error message\nThe error appears to have been in 'foo.yml': line 1, column 1,\nbut may actually be before there depending on the exact syntax problem.\n\nthis is line 1\n^\n")
# this line will not be found, as it is out of the index range
self.obj._data_source = 'foo.yml'
self.obj._line_number = 2
self.obj._column_number = 1
e = AnsibleError(self.message, self.obj)
self.assertEqual(e.message, 'this is the error message\nThe error occurred on line 2 of the file foo.yml:\n\n(specified line no longer in file, maybe it changed?)')
self.assertEqual(e.message, "This is the error message\nThe error appears to have been in 'foo.yml': line 2, column 1,\nbut may actually be before there depending on the exact syntax problem.\n\n(specified line no longer in file, maybe it changed?)")

104
v2/test/parsing/test_general.py
View file

@ -1,104 +0,0 @@
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.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 ansible.compat.tests import unittest
from ansible.errors import AnsibleInternalError, AnsibleParserError
from ansible.parsing import load
import json
import yaml
from io import FileIO
class MockFile(FileIO):
def __init__(self, ds, method='json'):
self.ds = ds
self.method = method
def read(self):
if self.method == 'json':
return json.dumps(self.ds)
elif self.method == 'yaml':
return yaml.dump(self.ds)
elif self.method == 'fail':
return """
AAARGGGGH:
*****
THIS WON'T PARSE !!!
NOOOOOOOOOOOOOOOOOO
"""
else:
raise Exception("untestable serializer")
def close(self):
pass
class TestGeneralParsing(unittest.TestCase):
def setUp(self):
pass
def tearDown(self):
pass
def test_parse_json_from_string(self):
data = """
{
"asdf" : "1234",
"jkl" : 5678
}
"""
output = load(data)
self.assertEqual(output['asdf'], '1234')
self.assertEqual(output['jkl'], 5678)
def test_parse_json_from_file(self):
output = load(MockFile(dict(a=1,b=2,c=3), 'json'))
self.assertEqual(output, dict(a=1,b=2,c=3))
def test_parse_yaml_from_dict(self):
data = """
asdf: '1234'
jkl: 5678
"""
output = load(data)
self.assertEqual(output['asdf'], '1234')
self.assertEqual(output['jkl'], 5678)
def test_parse_yaml_from_file(self):
output = load(MockFile(dict(a=1,b=2,c=3),'yaml'))
self.assertEqual(output, dict(a=1,b=2,c=3))
def test_parse_fail(self):
data = """
TEXT:
***
NOT VALID
"""
self.assertRaises(AnsibleParserError, load, data)
def test_parse_fail_from_file(self):
self.assertRaises(AnsibleParserError, load, MockFile(None,'fail'))
def test_parse_fail_invalid_type(self):
self.assertRaises(AnsibleInternalError, load, 3000)
self.assertRaises(AnsibleInternalError, load, dict(a=1,b=2,c=3))

64
v2/test/parsing/yaml/test_data_loader.py Normal file
View file

@ -0,0 +1,64 @@
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.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 yaml.scanner import ScannerError
from ansible.compat.tests import unittest
from ansible.compat.tests.mock import patch
from ansible.errors import AnsibleParserError
from ansible.parsing.yaml import DataLoader
from ansible.parsing.yaml.objects import AnsibleMapping
class TestDataLoader(unittest.TestCase):
def setUp(self):
# FIXME: need to add tests that utilize vault_password
self._loader = DataLoader()
def tearDown(self):
pass
@patch.object(DataLoader, '_get_file_contents')
def test_parse_json_from_file(self, mock_def):
mock_def.return_value = ("""{"a": 1, "b": 2, "c": 3}""", True)
output = self._loader.load_from_file('dummy_json.txt')
self.assertEqual(output, dict(a=1,b=2,c=3))
@patch.object(DataLoader, '_get_file_contents')
def test_parse_yaml_from_file(self, mock_def):
mock_def.return_value = ("""
a: 1
b: 2
c: 3
""", True)
output = self._loader.load_from_file('dummy_yaml.txt')
self.assertEqual(output, dict(a=1,b=2,c=3))
@patch.object(DataLoader, '_get_file_contents')
def test_parse_fail_from_file(self, mock_def):
mock_def.return_value = ("""
TEXT:
***
NOT VALID
""", True)
self.assertRaises(AnsibleParserError, self._loader.load_from_file, 'dummy_yaml_bad.txt')

100
v2/test/parsing/yaml/test_yaml.py
View file

@ -1,100 +0,0 @@
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.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 ansible.compat.tests import unittest
from yaml.scanner import ScannerError
from ansible.parsing.yaml import safe_load
from ansible.parsing.yaml.objects import AnsibleMapping
# a single dictionary instance
data1 = '''---
key: value
'''
# multiple dictionary instances
data2 = '''---
- key1: value1
- key2: value2
- key3: value3
- key4: value4
'''
# multiple dictionary instances with other nested
# dictionaries contained within those
data3 = '''---
- key1:
subkey1: subvalue1
subkey2: subvalue2
subkey3:
subsubkey1: subsubvalue1
- key2:
subkey4: subvalue4
- list1:
- list1key1: list1value1
list1key2: list1value2
list1key3: list1value3
'''
bad_data1 = '''---
foo: bar
bam: baz
'''
class TestSafeLoad(unittest.TestCase):
def setUp(self):
pass
def tearDown(self):
pass
def test_safe_load_bad(self):
# test the loading of bad yaml data
self.assertRaises(ScannerError, safe_load, bad_data1)
def test_safe_load(self):
# test basic dictionary
res = safe_load(data1)
self.assertEqual(type(res), AnsibleMapping)
self.assertEqual(res._line_number, 2)
# test data with multiple dictionaries
res = safe_load(data2)
self.assertEqual(len(res), 4)
self.assertEqual(res[0]._line_number, 2)
self.assertEqual(res[1]._line_number, 3)
self.assertEqual(res[2]._line_number, 5)
self.assertEqual(res[3]._line_number, 8)
# test data with multiple sub-dictionaries
res = safe_load(data3)
self.assertEqual(len(res), 3)
self.assertEqual(res[0]._line_number, 2)
self.assertEqual(res[1]._line_number, 7)
self.assertEqual(res[2]._line_number, 9)
self.assertEqual(res[0]['key1']._line_number, 3)
self.assertEqual(res[1]['key2']._line_number, 8)
self.assertEqual(res[2]['list1'][0]._line_number, 10)