tests, patch: init integration tests (#40045)

* patch: init integration tests

* skip install for macos

test/integration/targets/patch/aliases

@@ -0,0 +1,2 @@
+destructive
+posix/ci/group2

test/integration/targets/patch/files/origin.txt

@@ -0,0 +1,19 @@
+Stet clita kasd gubergren,no sea takimata sanctus est Lorem ipsum dolor
+sit amet.
+
+Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
+tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At
+vero eos et accusam et justo duo dolores et ea rebum.
+
+Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor
+sit amet.
+
+Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
+tempor invidunt ut labore et dolore magna aliquyam erat.
+
+Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
+tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At
+vero eos et accusam et justo duo dolores et ea rebum.
+
+Stet clita kasd gubergren,no sea takimata sanctus est Lorem ipsum dolor
+sit amet.

test/integration/targets/patch/files/result.patch

@@ -0,0 +1,24 @@
+--- origin.txt	2018-05-12 10:22:14.155109584 +0200
++++ result.txt	2018-05-12 10:18:07.230811204 +0200
+@@ -2,18 +2,12 @@
+ sit amet.
+ 
+ Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
+-tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At
+-vero eos et accusam et justo duo dolores et ea rebum.
+-
+-Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor
+-sit amet.
+-
+-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
+-tempor invidunt ut labore et dolore magna aliquyam erat.
++tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.
++At vero eos et accusam et justo duo dolores et ea rebum.
+ 
+ Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
+ tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At
+ vero eos et accusam et justo duo dolores et ea rebum.
+ 
+-Stet clita kasd gubergren,no sea takimata sanctus est Lorem ipsum dolor
++Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor
+ sit amet.

test/integration/targets/patch/files/result.txt

@@ -0,0 +1,13 @@
+Stet clita kasd gubergren,no sea takimata sanctus est Lorem ipsum dolor
+sit amet.
+
+Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
+tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.
+At vero eos et accusam et justo duo dolores et ea rebum.
+
+Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
+tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At
+vero eos et accusam et justo duo dolores et ea rebum.
+
+Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor
+sit amet.

test/integration/targets/patch/meta/main.yml

@@ -0,0 +1,3 @@
+---
+dependencies:
+  - prepare_tests

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

@@ -0,0 +1,107 @@
+---
+- name: ensure idempotency installed
+  package:
+    name: patch
+  when: ansible_distribution != "MacOSX"
+
+- name: create a directory for the result
+  file:
+    dest: "{{ output_dir }}/patch"
+    state: directory
+  register: result
+
+- name: assert the directory was created
+  assert:
+    that:
+    - "result.state == 'directory'"
+
+- name: copy the origin file
+  copy:
+    src: "./origin.txt"
+    dest: "{{ output_dir }}/patch/workfile.txt"
+  register: result
+
+- name: patch the origin file in check mode
+  patch:
+    src: result.patch
+    dest: "{{ output_dir }}/patch/workfile.txt"
+  check_mode: yes
+  register: result
+
+- name: verify patch the origin file in check mode
+  assert:
+    that:
+    - result is changed
+
+- name: patch the origin file
+  patch:
+    src: result.patch
+    dest: "{{ output_dir }}/patch/workfile.txt"
+  register: result
+
+- name: verify patch the origin file
+  assert:
+    that:
+    - result is changed
+
+- name: test patch the origin file idempotency
+  patch:
+    src: result.patch
+    dest: "{{ output_dir }}/patch/workfile.txt"
+  register: result
+
+- name: verify test patch the origin file idempotency
+  assert:
+    that:
+    - result is not changed
+
+- name: verify the resulted file matches expectations
+  copy:
+    src: "./result.txt"
+    dest: "{{ output_dir }}/patch/workfile.txt"
+  register: result
+  failed_when: result is changed
+
+- name: patch the workfile file in check mode state absent
+  patch:
+    src: result.patch
+    dest: "{{ output_dir }}/patch/workfile.txt"
+    state: absent
+  check_mode: yes
+  register: result
+
+- name: verify patch the workfile file in check mode state absent
+  assert:
+    that:
+    - result is changed
+
+- name: patch the workfile file state absent
+  patch:
+    src: result.patch
+    dest: "{{ output_dir }}/patch/workfile.txt"
+    state: absent
+  register: result
+
+- name: verify patch the workfile file state absent
+  assert:
+    that:
+    - result is changed
+
+- name: patch the workfile file state absent idempotency
+  patch:
+    src: result.patch
+    dest: "{{ output_dir }}/patch/workfile.txt"
+    state: absent
+  register: result
+
+- name: verify patch the workfile file state absent idempotency
+  assert:
+    that:
+    - result is not changed
+
+- name: verify the resulted file matches expectations
+  copy:
+    src: "./origin.txt"
+    dest: "{{ output_dir }}/patch/workfile.txt"
+  register: result
+  failed_when: result is changed