coverage for filter/urls.py, including fallback to custom implementations (#68412)

Signed-off-by: Rick Elrod <rick@elrod.me>

test/integration/targets/filter_urls/runme.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+set -eux
+
+export ANSIBLE_ROLES_PATH=../
+
+ansible-playbook runme.yml "$@"
+
+source virtualenv.sh
+
+# This is necessary for installing Jinja 2.6. We need this because Jinja 2.6
+# won't install with newer setuptools, and because setuptools 45+ won't work
+# with Python 2.
+pip install 'setuptools<45'
+
+# Install Jinja 2.6 since we want to test the fallback to Ansible's custom
+# urlencode functions. Jinja 2.6 does not have urlencode so we will trigger the
+# fallback.
+pip install 'jinja2 >= 2.6, < 2.7'
+
+# Run the playbook again in the venv with Jinja 2.6
+ansible-playbook runme.yml "$@"

test/integration/targets/filter_urls/runme.yml

@@ -0,0 +1,4 @@
+- hosts: localhost
+  gather_facts: false
+  roles:
+    - { role: filter_urls }

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

@@ -1,12 +1,31 @@
+- name: Get Jinja2 version
+  shell: "{{ ansible_python_interpreter }} -c 'import jinja2; print(jinja2.__version__)'"
+  register: jinja2_version
+
+- name: Print Jinja2 version
+  debug: var=jinja2_version.stdout
+
 - name: Test urldecode filter
   set_fact:
     urldecoded_string: key="@{}é&%£ foo bar '(;\<>""°)
 
 - name: Test urlencode filter
   set_fact:
-    urlencoded_string: '{{ urldecoded_string|urlencode }}'
+    urlencoded_string: 'key%3D%22%40%7B%7D%C3%A9%26%25%C2%A3%20foo%20bar%20%27%28%3B%5C%3C%3E%22%22%C2%B0%29'
 
-- name: Verify urlencode en urldecode
+- name: Verify urlencode / urldecode isomorphism
   assert:
     that:
     - urldecoded_string == urlencoded_string|urldecode
+    - urlencoded_string == urldecoded_string|urlencode
+
+- name: Verify urlencode handles dicts properly
+  assert:
+    that:
+      - "{'foo': 'bar'}|urlencode == 'foo=bar'"
+      - "{'foo': 'bar', 'baz': 'buz'}|urlencode == 'foo=bar&baz=buz'"
+      - "()|urlencode == ''"
+
+# Needed (temporarily) due to coverage reports not including the last task.
+- assert:
+    that: true