Replace test setup with molecule

.gitignore

@@ -1,2 +1,5 @@
 .vagrant
 
+.molecule
+tests/.cache/v/cache
+tests/__pycache__

README.md

@@ -38,6 +38,27 @@ destination:
 new_file_check_interval: "10" # Check every 10 seconds
 ```
 
-## Example Playbook
+## Testing
+Tests are done using [molecule](http://molecule.readthedocs.io/). To run the test suite, install molecule and its dependencies and run ` molecule test` from the folder containing molecule.yml. To add additional tests, add a [testinfra](http://testinfra.readthedocs.org/) python script in the [tests](./tests/) directory, or add a function to [test_papertrail.py](./tests/test_papertrail.py). Information about available Testinfra modules is available [here](http://testinfra.readthedocs.io/en/latest/modules.html).
 
-See the [examples](./examples/) directory.
+### Example
+```
+# Download molecule, dependencies
+$ pip install molecule
+
+# Change to the top-level project directory, which contains molecule.yml
+$ cd /path/to/ansible-papertrail
+
+# Ensure that molecule.yml is present
+$ ls
+CHANGELOG.md                             molecule.yml
+LICENSE                                  playbook.retry
+README.md                                playbook.yml
+ansible.cfg                              tasks
+defaults                                 templates
+handlers                                 tests
+meta
+
+# We're in the right directory, so let's run tests!
+$ molecule test
+```

ansible.cfg

@@ -0,0 +1,2 @@
+[defaults]
+roles_path = .molecule:../

molecule.yml

@@ -0,0 +1,28 @@
+---
+ansible:
+  config_file: ansible.cfg
+  become: True
+
+molecule:
+  test:
+    sequence:
+      - destroy
+      - syntax
+      - create
+      - converge
+      - verify
+
+vagrant:
+  platforms:
+    - name: trusty64
+      box: ubuntu/trusty64
+
+    - name: xenial64
+      box: ubuntu/xenial64
+
+  providers:
+    - name: virtualbox
+      type: virtualbox
+
+  instances:
+    - name: ansible-papertrail

playbook.yml

@@ -0,0 +1,48 @@
+---
+- hosts: all
+  gather_facts: False
+
+  pre_tasks:
+
+    # Check Ubuntu release version to determine if we need to install Python 2,
+    # an ansible dependency that isn't included by default in Ubuntu 16.04 and
+    # up.
+
+    - name: Check Ubuntu release
+      raw: cat /etc/lsb-release | grep DISTRIB_RELEASE | cut -d "=" -f2
+      register: ubuntu_release
+      changed_when: false
+
+    - debug: msg="Running ubuntu version {{ ubuntu_release.stdout }}"
+
+    # Update apt cache and install python 2 for Ubuntu versions greater than 16.04
+    - name: Update APT cache
+      raw: apt-get update
+      become: True
+      changed_when: false
+
+    - name: Install Python
+      raw: apt-get install -yq python
+      become: True
+      when: ubuntu_release.stdout | version_compare('16.04', '>=')
+
+    # Gather facts once ansible dependencies are installed
+    - name: Gather facts
+      setup:
+
+  roles:
+    # Papertrail
+    - { role: "ansible-papertrail" }
+
+  tasks:
+    - name: Configure remote_syslog
+      template: src="log_files.yml.j2"
+                dest="{{ papertrail_conf }}"
+      notify:
+        - Restart remote_syslog
+
+    - name: Add Papertrail user to service group
+      user: name=papertrail
+            append=yes
+            groups=adm
+            state=present

tests/test_papertrail.py

@@ -0,0 +1,60 @@
+import pytest
+import re
+
+
+@pytest.fixture()
+def AnsibleDefaults(Ansible):
+    """ Load default variables into dictionary.
+    Args:
+        Ansible - Requires the ansible connection backend.
+    """
+    return Ansible("include_vars", "./defaults/main.yml")["ansible_facts"]
+
+
+def test_papertrail_user(User):
+    """Check that the Papertrail user exists with the right configuration"""
+    papertrail = User('papertrail')
+    assert papertrail.exists
+    assert papertrail.home == "/var/lib/papertrail"
+    assert papertrail.shell == "/bin/false"
+    assert papertrail.name == "papertrail"
+
+
+def test_papertrail_bundle(File):
+    """Check that the Papertrail certificate bundle exists"""
+    assert File('/etc/papertrail-bundle.pem').exists
+
+
+def test_rsyslog_gnutils(Package):
+    """Check that the rsyslog TLS support is installed"""
+    assert Package("rsyslog-gnutls").is_installed
+
+
+def test_services(Service):
+    """Check that syslog/remote syslog are running"""
+    assert Service("rsyslog").is_enabled
+    assert Service("remote_syslog").is_enabled
+
+
+def test_papertrail_configuration(File, AnsibleDefaults):
+    """Check make sure the proper Papertrail configuration exists"""
+    papertrail_config = File(AnsibleDefaults["papertrail_conf"])
+    papertrail_host = AnsibleDefaults["papertrail_host"]
+    papertrail_port = AnsibleDefaults["papertrail_port"]
+
+    assert papertrail_config.exists
+    assert re.search("host: {}".format(papertrail_host),
+                     papertrail_config.content_string) is not None
+    assert re.search("port: {}".format(papertrail_port),
+                     papertrail_config.content_string) is not None
+
+
+def test_rsyslog_configuration(File, AnsibleDefaults):
+    """Check make sure the proper rsyslog configuration exists"""
+    rsyslog_config = File("/etc/rsyslog.d/90-papertrail.conf")
+    papertrail_host = AnsibleDefaults["papertrail_host"]
+    papertrail_port = AnsibleDefaults["papertrail_port"]
+
+    assert rsyslog_config.exists
+    assert re.search("\*\.\* @@{}:{}".format(papertrail_host, papertrail_port),
+                     rsyslog_config.content_string) is not None