Add changed_when test

tests_new/integration/non_destructive.yml

@@ -10,4 +10,5 @@
     - { role: test_subversion, tags: test_subversion }
     - { role: test_git, tags: test_git }
     - { role: test_hg, tags: test_hg }
+    - { role: test_changed_when, tags: test_changed_when }
 

tests_new/integration/roles/test_changed_when/meta/main.yml

+dependencies: 
+  - prepare_tests
+

tests_new/integration/roles/test_changed_when/tasks/main.yml

+# test code for the changed_when parameter
+# (c) 2014, James Tanner <tanner.jc@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/>.
+
+- name: ensure shell is always changed
+  shell: ls -al /tmp
+  register: shell_result
+
+- debug: var=shell_result
+
+- name: changed should always be true for shell
+  assert: 
+    that:
+       - "shell_result.changed"
+
+- name: test changed_when override for shell
+  shell: ls -al /tmp
+  changed_when: False
+  register: shell_result
+
+- debug: var=shell_result
+
+- name: changed should be false
+  assert: 
+    that:
+       - "not shell_result.changed"
+
+