Remove molecule tests

Molecule is :
- difficult to setup / update,
- not so easy to use,
- really slow to execute,
- and the project is not very active.

.github/workflows/ci.yml

@@ -33,28 +33,3 @@ jobs:
           ansible --version
           ansible-lint --version
           ansible-lint
-
-  molecule:
-    name: 'Molecule'
-    runs-on: 'ubuntu-latest'
-    strategy:
-      matrix:
-        distro: [ 'debian10' ]
-    steps:
-      - name: 'Check out the codebase'
-        uses: 'actions/checkout@v2'
-      - name: 'Set up Python 3'
-        uses: 'actions/setup-python@v2'
-        with:
-          python-version: '3.x'
-      - name: 'Install test dependencies'
-        run: 'pip3 install ansible molecule[docker]==3.1.5 molecule-docker==0.2.4 docker'
-      - name: 'Run Molecule tests'
-        run: |
-          molecule --version
-          cd ansible_collections/marcwrobel/debian_basics
-          molecule test
-        env:
-          PY_COLORS: '1'
-          ANSIBLE_FORCE_COLOR: '1'
-          MOLECULE_DISTRO: ${{ matrix.distro }}

CONTRIBUTING.md

@@ -6,8 +6,8 @@ The following instructions assume you have Python 3 and Docker installed. On Deb
 
 ## Prepare development environment
 
-This project needs [Ansible](https://www.ansible.com/), [YAMLlint](https://yamllint.readthedocs.io/en/stable/), [Ansible-lint](https://github.com/ansible/ansible-lint)
-and [Molecule](https://molecule.readthedocs.io/en/stable/).
+This project needs [Ansible](https://www.ansible.com/), [YAMLlint](https://yamllint.readthedocs.io/en/stable/) and
+[Ansible-lint](https://github.com/ansible/ansible-lint).
 
 The best and easiest way to install those dependencies is to use [`pipenv`](https://pipenv.pypa.io).
 
@@ -16,7 +16,6 @@ The best and easiest way to install those dependencies is to use [`pipenv`](http
     ansible --version
     yamllint --version
     ansible-lint --version
-    molecule --version
 
 ## Run linting
 
@@ -26,41 +25,7 @@ Linting is performed at repository level using YAMLlint and Ansible-lint :
     yamllint .
     ansible-lint
 
-## Run integration tests
-
-Integration tests are executed by Molecule using [Jeff Geerling's](https://www.jeffgeerling.com/) Docker images. Any `docker-xxx-ansible` images listed on his
-profile on [Docker Hub](https://hub.docker.com/u/geerlingguy/) can be used with the `xxx` identifier passed as the `MOLECULE_DISTRO` environment variable. For
-instance, to run the integration tests on CentOS 8:
-
-    cd ansible_collections/marcwrobel/assertions
-    MOLECULE_DISTRO=debian9 molecule test
-
-The default distribution is `debian10`.
-
-If you want to launch integration tests on multiple distributions :
-
-    cd ansible_collections/marcwrobel/assertions
-    for distro in debian9 debian10; do
-        MOLECULE_DISTRO=$distro molecule test
-    done
-
-## Run integration tests during the development lifecycle
-
-During the development lifecycle you may prefer to keep the docker containers running and run `molecule` commands individually:
-
-    # Creates and configures instances
-    molecule converge
-
-    # Runs automated tests against instances
-    molecule verify
-
-    # Runs the converge step a second time and check that no tasks are marked as changed
-    molecule idempotence
-
 ## Continuous integration
 
 The GitHub Action workflow [`CI`](https://github.com/marcwrobel/ansible-collection-assertions/actions?query=workflow%3ACI) is executed for each commit, on merge
-request (targeting the `main` branch) and at least once a week on saturday morning. This workflow runs :
-
-- linting with YAMLlint and Ansible-lint,
-- integration tests on collections with Molecule.
+request (targeting the `main` branch) and at least once a week on saturday morning. This workflow runs linting with YAMLlint and Ansible-lint.

Pipfile

@@ -8,13 +8,8 @@ ansible = "~=2.10"
 ansible-lint = "~=4.3"
 yamllint = "~=1.25"
 setuptools = "*"
-molecule-docker = "==0.2.4"
 
 [dev-packages]
 
 [requires]
 python_version = "3.7"
-
-[packages.molecule]
-extras = [ "docker",]
-version = "==3.1.5"