ini_file: add integration test (#24434)

* ini_file: add integration test

Start integration tests for ini_file module.

* ini_file test: add comments for lisibility

* update from review: use var instead of checksum to assert content

test/integration/targets/ini_file/aliases

@@ -0,0 +1 @@
+posix/ci/group2

test/integration/targets/ini_file/tasks/main.yml

@@ -0,0 +1,123 @@
+---
+# test code for ini_file plugins
+# (c) 2017 Red Hat Inc.
+
+# 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: record the output directory
+  set_fact: output_file={{output_dir}}/foo.ini
+
+- name: add "fav=lemonade" is in section "[drinks]" in specified file
+  ini_file:
+    path: "{{ output_file }}"
+    section: drinks
+    option: fav
+    value: lemonade
+  register: result1
+
+- name: verify ini_file 'changed' is true
+  assert:
+    that:
+      - result1.changed == True
+      - result1.msg == 'section and option added'
+
+- name: set expected content and get current ini file content
+  set_fact:
+    expected1: |-
+
+      [drinks]
+      fav = lemonade
+    content1: "{{ lookup('file', output_file) }}"
+
+- name: Verify content of ini file is as expected
+  assert:
+    that:
+      - content1 == expected1
+
+- name: add "fav=lemonade" is in section "[drinks]" again
+  ini_file:
+    path: "{{ output_file }}"
+    section: drinks
+    option: fav
+    value: lemonade
+  register: result2
+
+- name: Ensure unchanged
+  assert:
+    that:
+      - result2.changed == False
+      - result2.msg == 'OK'
+
+- name: Ensure "hate=coke" is in section "[drinks]"
+  ini_file:
+    path: "{{ output_file }}"
+    section: drinks
+    option: hate
+    value: coke
+  register: result3
+
+- name: set expected content and get current ini file content
+  set_fact:
+    expected3: |-
+
+      [drinks]
+      fav = lemonade
+      hate = coke
+    content3: "{{ lookup('file', output_file) }}"
+
+- name: assert 'changed' is true and content is OK
+  assert:
+    that:
+      - result3.changed == True
+      - result3.msg == 'option added'
+      - content3 == expected3
+
+- name: Remove option "hate=coke"
+  ini_file:
+    path: "{{ output_file }}"
+    section: drinks
+    option: hate
+    state: absent
+  register: result4
+
+- name: get ini file content
+  set_fact:
+    content4: "{{ lookup('file', output_file) }}"
+
+- name: assert changed and content is as expected
+  assert:
+    that:
+      - result4.changed == True
+      - result4.msg == 'option changed'
+      - content4 == expected1
+
+- name: remove section 'drinks'
+  ini_file:
+    path: "{{ output_file }}"
+    section: drinks
+    state: absent
+  register: result5
+
+- name: get current ini file content
+  set_fact:
+    content5: "{{ lookup('file', output_file) }}"
+
+- name: assert changed
+  assert:
+    that:
+      - result5.changed == True
+      - result5.msg == 'section removed'
+      - content5 == ""