Add unit tests for unsafe_proxy (#47887)

* Add unit tests for unsafe_proxy

* Remove unused import

* Address comments

* Add inheritance test

test/units/utils/test_unsafe_proxy.py

@@ -0,0 +1,81 @@
+# -*- coding: utf-8 -*-
+# (c) 2018 Matt Martz <matt@sivel.net>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+from ansible.module_utils.six import PY3
+from ansible.utils.unsafe_proxy import AnsibleUnsafe, AnsibleUnsafeText, UnsafeProxy, wrap_var
+
+
+def test_UnsafeProxy():
+    assert isinstance(UnsafeProxy({}), dict)
+    assert not isinstance(UnsafeProxy({}), AnsibleUnsafe)
+
+    assert isinstance(UnsafeProxy('foo'), AnsibleUnsafeText)
+
+
+def test_wrap_var_string():
+    assert isinstance(wrap_var('foo'), AnsibleUnsafeText)
+    assert isinstance(wrap_var(u'foo'), AnsibleUnsafeText)
+    if PY3:
+        assert isinstance(wrap_var(b'foo'), type(b''))
+        assert not isinstance(wrap_var(b'foo'), AnsibleUnsafe)
+    else:
+        assert isinstance(wrap_var(b'foo'), AnsibleUnsafeText)
+
+
+def test_wrap_var_dict():
+    assert isinstance(wrap_var(dict(foo='bar')), dict)
+    assert not isinstance(wrap_var(dict(foo='bar')), AnsibleUnsafe)
+    assert isinstance(wrap_var(dict(foo='bar'))['foo'], AnsibleUnsafeText)
+
+
+def test_wrap_var_dict_None():
+    assert wrap_var(dict(foo=None))['foo'] is None
+    assert not isinstance(wrap_var(dict(foo=None))['foo'], AnsibleUnsafe)
+
+
+def test_wrap_var_list():
+    assert isinstance(wrap_var(['foo']), list)
+    assert not isinstance(wrap_var(['foo']), AnsibleUnsafe)
+    assert isinstance(wrap_var(['foo'])[0], AnsibleUnsafeText)
+
+
+def test_wrap_var_list_None():
+    assert wrap_var([None])[0] is None
+    assert not isinstance(wrap_var([None])[0], AnsibleUnsafe)
+
+
+def test_wrap_var_set():
+    assert isinstance(wrap_var(set(['foo'])), set)
+    assert not isinstance(wrap_var(set(['foo'])), AnsibleUnsafe)
+    for item in wrap_var(set(['foo'])):
+        assert isinstance(item, AnsibleUnsafeText)
+
+
+def test_wrap_var_set_None():
+    for item in wrap_var(set([None])):
+        assert item is None
+        assert not isinstance(item, AnsibleUnsafe)
+
+
+def test_wrap_var_tuple():
+    assert isinstance(wrap_var(('foo',)), tuple)
+    assert not isinstance(wrap_var(('foo',)), AnsibleUnsafe)
+    assert isinstance(wrap_var(('foo',))[0], type(''))
+    assert not isinstance(wrap_var(('foo',))[0], AnsibleUnsafe)
+
+
+def test_wrap_var_None():
+    assert wrap_var(None) is None
+    assert not isinstance(wrap_var(None), AnsibleUnsafe)
+
+
+def test_wrap_var_unsafe():
+    assert isinstance(wrap_var(AnsibleUnsafeText(u'foo')), AnsibleUnsafeText)
+
+
+def test_AnsibleUnsafeText():
+    assert isinstance(AnsibleUnsafeText(u'foo'), AnsibleUnsafe)