1 files changed, 123 insertions, 0 deletions
diff --git a/test/units/parsing/yaml/test_dumper.py b/test/units/parsing/yaml/test_dumper.py
new file mode 100644
index 0000000..5fbc139
--- /dev/null
+++ b/test/units/parsing/yaml/test_dumper.py
@@ -0,0 +1,123 @@
+# coding: utf-8
+# 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
+
+import io
+import yaml
+
+from jinja2.exceptions import UndefinedError
+
+from units.compat import unittest
+from ansible.parsing import vault
+from ansible.parsing.yaml import dumper, objects
+from ansible.parsing.yaml.loader import AnsibleLoader
+from ansible.module_utils.six import PY2
+from ansible.template import AnsibleUndefined
+from ansible.utils.unsafe_proxy import AnsibleUnsafeText, AnsibleUnsafeBytes
+
+from units.mock.yaml_helper import YamlTestUtils
+from units.mock.vault_helper import TextVaultSecret
+from ansible.vars.manager import VarsWithSources
+
+
+class TestAnsibleDumper(unittest.TestCase, YamlTestUtils):
+    def setUp(self):
+        self.vault_password = "hunter42"
+        vault_secret = TextVaultSecret(self.vault_password)
+        self.vault_secrets = [('vault_secret', vault_secret)]
+        self.good_vault = vault.VaultLib(self.vault_secrets)
+        self.vault = self.good_vault
+        self.stream = self._build_stream()
+        self.dumper = dumper.AnsibleDumper
+
+    def _build_stream(self, yaml_text=None):
+        text = yaml_text or u''
+        stream = io.StringIO(text)
+        return stream
+
+    def _loader(self, stream):
+        return AnsibleLoader(stream, vault_secrets=self.vault.secrets)
+
+    def test_ansible_vault_encrypted_unicode(self):
+        plaintext = 'This is a string we are going to encrypt.'
+        avu = objects.AnsibleVaultEncryptedUnicode.from_plaintext(plaintext, vault=self.vault,
+                                                                  secret=vault.match_secrets(self.vault_secrets, ['vault_secret'])[0][1])
+
+        yaml_out = self._dump_string(avu, dumper=self.dumper)
+        stream = self._build_stream(yaml_out)
+        loader = self._loader(stream)
+
+        data_from_yaml = loader.get_single_data()
+
+        self.assertEqual(plaintext, data_from_yaml.data)
+
+    def test_bytes(self):
+        b_text = u'tréma'.encode('utf-8')
+        unsafe_object = AnsibleUnsafeBytes(b_text)
+        yaml_out = self._dump_string(unsafe_object, dumper=self.dumper)
+
+        stream = self._build_stream(yaml_out)
+        loader = self._loader(stream)
+
+        data_from_yaml = loader.get_single_data()
+
+        result = b_text
+        if PY2:
+            # https://pyyaml.org/wiki/PyYAMLDocumentation#string-conversion-python-2-only
+            # pyyaml on Python 2 can return either unicode or bytes when given byte strings.
+            # We normalize that to always return unicode on Python2 as that's right most of the
+            # time.  However, this means byte strings can round trip through yaml on Python3 but
+            # not on Python2.  To make this code work the same on Python2 and Python3 (we want
+            # the Python3 behaviour) we need to change the methods in Ansible to:
+            # (1) Let byte strings pass through yaml without being converted on Python2
+            # (2) Convert byte strings to text strings before being given to pyyaml  (Without this,
+            #       strings would end up as byte strings most of the time which would mostly be wrong)
+            # In practice, we mostly read bytes in from files and then pass that to pyyaml, for which
+            # the present behavior is correct.
+            # This is a workaround for the current behavior.
+            result = u'tr\xe9ma'
+
+        self.assertEqual(result, data_from_yaml)
+
+    def test_unicode(self):
+        u_text = u'nöel'
+        unsafe_object = AnsibleUnsafeText(u_text)
+        yaml_out = self._dump_string(unsafe_object, dumper=self.dumper)
+
+        stream = self._build_stream(yaml_out)
+        loader = self._loader(stream)
+
+        data_from_yaml = loader.get_single_data()
+
+        self.assertEqual(u_text, data_from_yaml)
+
+    def test_vars_with_sources(self):
+        try:
+            self._dump_string(VarsWithSources(), dumper=self.dumper)
+        except yaml.representer.RepresenterError:
+            self.fail("Dump VarsWithSources raised RepresenterError unexpectedly!")
+
+    def test_undefined(self):
+        undefined_object = AnsibleUndefined()
+        try:
+            yaml_out = self._dump_string(undefined_object, dumper=self.dumper)
+        except UndefinedError:
+            yaml_out = None
+
+        self.assertIsNone(yaml_out)