Add unit test for zuul_json text result parsing

This is a follow-on from I02bcd307bcfad8d99dd0db13d979ce7ba3d5e0e4
which creates a fake library to simulate different result types being
returned to zuul_json callback plugin.

Change-Id: Ib0d2360f98daf33e05207c9c285528ce2f51cbf9

4 files changed, 91 insertions, 0 deletions

diff --git a/tests/fixtures/config/ansible-json-string-results/git/org_project/playbooks/json-results-strings.yaml b/tests/fixtures/config/ansible-json-string-results/git/org_project/playbooks/json-results-strings.yaml
new file mode 100644
index 000000000..c3aa1c686
--- /dev/null
+++ b/tests/fixtures/config/ansible-json-string-results/git/org_project/playbooks/json-results-strings.yaml
@@ -0,0 +1,18 @@
+- hosts: localhost
+  gather_facts: no
+  tasks:
+
+    - name: Ensure we handle string returns properly
+      return_strings:
+        an_arg: 'if you see this string, it is working'
+
+
+    - name: Ensure this never shows up
+      return_strings:
+        an_arg: 'this is a secret string'
+      no_log: '{{ item }}'
+      # If any loop iteration is no_log, they all are; see
+      # https://github.com/ansible/ansible/commit/bda074d34e46ee9862a48ed067ad42260d3f92ab
+      loop:
+        - true
+        - false
diff --git a/tests/fixtures/config/ansible-json-string-results/git/org_project/playbooks/library/return_strings.py b/tests/fixtures/config/ansible-json-string-results/git/org_project/playbooks/library/return_strings.py
new file mode 100644
index 000000000..3cc085fd0
--- /dev/null
+++ b/tests/fixtures/config/ansible-json-string-results/git/org_project/playbooks/library/return_strings.py
@@ -0,0 +1,40 @@
+# Copyright (c) 2022 Red Hat
+#
+# This module 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.
+#
+# This software 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 this software.  If not, see <http://www.gnu.org/licenses/>.
+
+# This file, by existing, should be found instead of ansible's built in
+# file module.
+
+from ansible.module_utils.basic import *  # noqa
+from ansible.module_utils.basic import AnsibleModule
+
+
+def main():
+    module = AnsibleModule(
+        argument_spec=dict(
+            an_arg=dict(required=True, type='str'),
+        )
+    )
+
+    results = [
+        'this is a string',
+        module.params['an_arg'],
+        'a final string'
+    ]
+
+    module.exit_json(msg="A plugin message", results=results)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/tests/fixtures/config/ansible-json-string-results/git/org_project/zuul.yaml b/tests/fixtures/config/ansible-json-string-results/git/org_project/zuul.yaml
new file mode 100644
index 000000000..8a17a3ba8
--- /dev/null
+++ b/tests/fixtures/config/ansible-json-string-results/git/org_project/zuul.yaml
@@ -0,0 +1,27 @@
+- pipeline:
+    name: check
+    manager: independent
+    post-review: true
+    trigger:
+      gerrit:
+        - event: patchset-created
+    success:
+      gerrit:
+        Verified: 1
+    failure:
+      gerrit:
+        Verified: -1
+
+- job:
+    name: base
+    parent: null
+
+- job:
+    name: json-results-strings
+    attempts: 1
+    run: playbooks/json-results-strings.yaml
+
+- project:
+    check:
+      jobs:
+        - json-results-strings
diff --git a/tests/fixtures/config/ansible-json-string-results/main.yaml b/tests/fixtures/config/ansible-json-string-results/main.yaml
new file mode 100644
index 000000000..73787886f
--- /dev/null
+++ b/tests/fixtures/config/ansible-json-string-results/main.yaml
@@ -0,0 +1,6 @@
+- tenant:
+    name: tenant-one
+    source:
+      gerrit:
+        config-projects:
+          - org/project