Split out var_blending test into targets dir. (#17996)

test/integration/targets/var_blending/integration_config.yml

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+output_dir: .
+etest: 'from -e'

test/integration/targets/var_blending/roles/test_var_blending/defaults/main.yml

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+etest: "from role defaults"
+role_var_beats_default: "shouldn't see this"
+parameterized_beats_default: "shouldn't see this"
+inventory_beats_default: "shouldn't see this"

test/integration/targets/var_blending/roles/test_var_blending/files/foo.txt

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+The value of groups_tree_var = 5000.
+This comes from host, not the parents or grandparents.
+
+The value of the grandparent variable grandparent_var is
+not overridden and is = 2000
+
+The value of the parent variable is not overridden and
+is = 6000
+
+The variable 'overridden_in_parent' is set in the parent
+and grandparent, so the parent wins.  It's value is = 1000.
+
+The values of 'uno', 'dos', and 'tres' are set in group_vars/all but 'tres' is
+set to the value of 'three' in group_vars/local, which should override it.
+
+uno = 1
+dos = 2
+tres = three
+
+The values of 'a', 'b', 'c', and 'd' are set in host_vars/local and should not
+be clobbered by values that are also set in group_vars.
+
+a = 1
+b = 2
+c = 3
+d = 4
+
+The value of 'badwolf' is set via the include_vars plugin.
+
+badwolf = badwolf
+
+The value of 'winter' is set via the main.yml in the role.   
+
+winter = coming
+
+Here's an arbitrary variable set as vars_files in the playbook.
+
+vars_file_var = 321
+
+And vars.
+
+vars = 123
+
+Variables about other hosts can be looked up via hostvars.  This includes
+facts but here we'll just access a variable defined in the groups.
+
+999
+
+Ansible has pretty basic precedence rules for variable overriding. We already have
+some tests above about group order.  Here are a few more.
+
+   * -e variables always win
+   * then comes "most everything else"
+   * then comes variables defined in inventory
+   * then "role defaults", which are the most "defaulty" and lose in priority to everything.
+
+Given the above rules, here's a test that a -e variable overrides inventory, 
+and also defaults, and role vars.
+
+etest = from -e
+
+Now a test to make sure role variables can override inventory variables.
+
+role_var_beats_inventory = chevron 5 encoded
+
+Role variables should also beat defaults.
+
+role_var_beats_default = chevron 6 encoded
+
+But defaults are lower priority than inventory, so inventory should win.
+
+inventory_beats_default = narf
+
+That's the end of the precedence tests for now, but more are welcome.
+
+
+

test/integration/targets/var_blending/roles/test_var_blending/tasks/main.yml

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+# test code 
+# (c) 2014, Michael DeHaan <michael.dehaan@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/>.
+
+- include_vars: more_vars.yml
+
+- name: deploy a template that will use variables at various levels
+  template: src=foo.j2 dest={{output_dir}}/foo.templated 
+  register: template_result
+
+- name: copy known good into place
+  copy: src=foo.txt dest={{output_dir}}/foo.txt
+
+- name: compare templated file to known good
+  shell: diff {{output_dir}}/foo.templated {{output_dir}}/foo.txt
+  register: diff_result
+
+- name: verify templated file matches known good
+  assert:  
+    that: 
+        - 'diff_result.stdout == ""' 
+
+- name: check debug variable with same name as var content
+  debug: var=same_value_as_var_name_var
+  register: same_value_as_var_name
+
+- name: check debug variable output when variable is undefined
+  debug: var=undefined_variable
+  register: var_undefined
+
+- assert:
+    that:
+      - var_undefined.undefined_variable == 'VARIABLE IS NOT DEFINED!'
+      - same_value_as_var_name.same_value_as_var_name_var == 'same_value_as_var_name_var'
+
+- name: cleanup temporary template output
+  file: path={{output_dir}}/foo.templated state=absent
+
+- name: cleanup temporary copy
+  file: path={{output_dir}}/foo.txt state=absent

test/integration/targets/var_blending/roles/test_var_blending/templates/foo.j2

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+The value of groups_tree_var = {{ groups_tree_var }}.
+This comes from host, not the parents or grandparents.
+
+The value of the grandparent variable grandparent_var is
+not overridden and is = {{ grandparent_var }}
+
+The value of the parent variable is not overridden and
+is = {{ parent_var }}
+
+The variable 'overridden_in_parent' is set in the parent
+and grandparent, so the parent wins.  It's value is = {{ overridden_in_parent }}.
+
+The values of 'uno', 'dos', and 'tres' are set in group_vars/all but 'tres' is
+set to the value of 'three' in group_vars/local, which should override it.
+
+uno = {{ uno }}
+dos = {{ dos }}
+tres = {{ tres }}
+
+The values of 'a', 'b', 'c', and 'd' are set in host_vars/local and should not
+be clobbered by values that are also set in group_vars.
+
+a = {{ a }}
+b = {{ b }}
+c = {{ c }}
+d = {{ d }}
+
+The value of 'badwolf' is set via the include_vars plugin.
+
+badwolf = {{ badwolf }}
+
+The value of 'winter' is set via the main.yml in the role.   
+
+winter = {{ winter }}
+
+Here's an arbitrary variable set as vars_files in the playbook.
+
+vars_file_var = {{ vars_file_var }}
+
+And vars.
+
+vars = {{ vars_var }}
+
+Variables about other hosts can be looked up via hostvars.  This includes
+facts but here we'll just access a variable defined in the groups.
+
+{{ hostvars['testhost2']['a'] }}
+
+Ansible has pretty basic precedence rules for variable overriding. We already have
+some tests above about group order.  Here are a few more.
+
+   * -e variables always win
+   * then comes "most everything else"
+   * then comes variables defined in inventory
+   * then "role defaults", which are the most "defaulty" and lose in priority to everything.
+
+Given the above rules, here's a test that a -e variable overrides inventory, 
+and also defaults, and role vars.
+
+etest = {{ etest }}
+
+Now a test to make sure role variables can override inventory variables.
+
+role_var_beats_inventory = {{ role_var_beats_inventory }}
+
+Role variables should also beat defaults.
+
+role_var_beats_default = {{ role_var_beats_default }}
+
+But defaults are lower priority than inventory, so inventory should win.
+
+inventory_beats_default = {{ inventory_beats_default }}
+
+That's the end of the precedence tests for now, but more are welcome.
+
+
+

test/integration/targets/var_blending/roles/test_var_blending/vars/main.yml

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+winter: coming
+etest: 'from role vars'
+role_var_beats_inventory: 'chevron 5 encoded'
+role_var_beats_default: 'chevron 6 encoded'

test/integration/targets/var_blending/roles/test_var_blending/vars/more_vars.yml

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+badwolf: badwolf
+
+same_value_as_var_name_var: "same_value_as_var_name_var"

test/integration/targets/var_blending/runme.sh

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+#!/usr/bin/env bash
+
+set -eux
+
+ansible-playbook test_var_blending.yml -i ../../inventory -e @integration_config.yml -v "$@"

test/integration/targets/var_blending/test_var_blending.yml

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+- hosts: testhost
+  vars_files:
+    - vars_file.yml
+  vars:
+    vars_var: 123
+  gather_facts: True
+  roles:
+    - { role: test_var_blending, parameterized_beats_default: 1234, tags: test_var_blending }

test/integration/targets/var_blending/vars_file.yml

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+# this file is here to support testing vars_files in the blending tests only.
+# in general define test data in the individual role:
+#    roles/role_name/vars/main.yml
+
+foo: "Hello"
+things1:
+    - 1
+    - 2
+things2:
+    - "{{ foo }}"
+    - "{{ foob | default('') }}"
+vars_file_var: 321