# Test code for the sysctl module.
# (c) 2017, 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/>.

# NOTE: Testing sysctl inside an unprivileged container means that we cannot
# apply sysctl, or it will always fail, because of that in most cases (except
# those when it should fail) we have to use `reload=no`.

- set_fact:
    output_dir_test: "{{ output_dir }}/test_sysctl"

- name: make sure our testing sub-directory does not exist
  file:
    path: "{{ output_dir_test }}"
    state: absent

- name: create our testing sub-directory
  file:
    path: "{{ output_dir_test }}"
    state: directory

##
## sysctl - file manipulation
##

- name: copy the example conf to the test dir
  copy:
    src: sysctl.conf
    dest: "{{ output_dir_test }}"

- name: Set vm.swappiness to 5
  sysctl:
    name: vm.swappiness
    value: 5
    state: present
    reload: no
    sysctl_file: "{{ output_dir_test }}/sysctl.conf"
  register: sysctl_test0

- debug:
    var: sysctl_test0
    verbosity: 1

- name: get file content
  shell: "cat {{ output_dir_test }}/sysctl.conf | egrep -v ^\\#"
  register: sysctl_content0

- debug:
    var: sysctl_content0
    verbosity: 1

- name: Set vm.swappiness to 5 again
  sysctl:
      name: vm.swappiness
      value: 5
      state: present
      reload: no
      sysctl_file: "{{ output_dir_test }}/sysctl.conf"
  register: sysctl_test1

- name: validate results
  assert:
      that:
        - sysctl_test0 is changed
        - sysctl_test1 is not changed
        - 'sysctl_content0.stdout_lines[sysctl_content0.stdout_lines.index("vm.swappiness=5")] == "vm.swappiness=5"'

- name: Remove kernel.panic
  sysctl:
    name: kernel.panic
    value: 2
    reload: no
    state: absent
    sysctl_file: "{{ output_dir_test }}/sysctl.conf"
  register: sysctl_test2

- name: get file content
  shell: "cat {{ output_dir_test }}/sysctl.conf | egrep -v ^\\#"
  register: sysctl_content2

- debug:
    var: item
    verbosity: 1
  with_items:
    - "{{ sysctl_test2 }}"
    - "{{ sysctl_content2 }}"

- name: Validate results for key removal
  assert:
    that:
      - sysctl_test2 is changed
      - "'kernel.panic' not in sysctl_content2.stdout_lines"

- name: Test remove kernel.panic again
  sysctl:
    name: kernel.panic
    value: 2
    state: absent
    reload: no
    sysctl_file: "{{ output_dir_test }}/sysctl.conf"
  register: sysctl_test2_change_test

- name: Assert that no change was made
  assert:
    that:
      - sysctl_test2_change_test is not changed

- name: Try sysctl with an invalid value
  sysctl:
    name: net.ipv4.ip_forward
    value: foo
  register: sysctl_test3
  ignore_errors: yes

- debug:
    var: sysctl_test3
    verbosity: 1

- name: validate results for test 3
  assert:
    that:
      - sysctl_test3 is failed

##
## sysctl - sysctl_set
##

- name: set net.ipv4.ip_forward
  sysctl:
    name: net.ipv4.ip_forward
    value: 1
    sysctl_set: yes
    reload: no
  register: sysctl_test3

- name: check with sysctl command
  shell: sysctl net.ipv4.ip_forward
  register: sysctl_check3

- debug:
    var: item
    verbosity: 1
  with_items:
    - "{{ sysctl_test3 }}"
    - "{{ sysctl_check3 }}"

- name: validate results for test 3
  assert:
    that:
      - sysctl_test3 is changed
      - 'sysctl_check3.stdout_lines == ["net.ipv4.ip_forward = 1"]'

- name: Try sysctl with no name
  sysctl:
    name:
    value: 1
    sysctl_set: yes
  ignore_errors: True
  register: sysctl_no_name

- name: validate nameless results
  assert:
    that:
      - sysctl_no_name is failed
      - "sysctl_no_name.msg == 'name cannot be None'"

- name: Try sysctl with no value
  sysctl:
    name: Foo
    value:
    sysctl_set: yes
  ignore_errors: True
  register: sysctl_no_value

- name: validate nameless results
  assert:
    that:
      - sysctl_no_value is failed
      - "sysctl_no_value.msg == 'value cannot be None'"

- name: Try sysctl with an invalid value
  sysctl:
    name: net.ipv4.ip_forward
    value: foo
    sysctl_set: yes
  register: sysctl_test4
  ignore_errors: yes

- debug:
    var: sysctl_test4
    verbosity: 1

- name: validate results for test 4
  assert:
    that:
      - sysctl_test4 is failed