feat: add the ability to compare two Plan objects with == and create a Plan from a dict #917

# to view logs

	name: Data Charm Tests

	on: [push, pull_request, workflow_call]

	jobs:
	db-charm-tests:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	charm-repo:
	- "canonical/postgresql-operator"
	- "canonical/postgresql-k8s-operator"
	- "canonical/mysql-operator"
	# TODO: uncomment once secrets issues are fixed in this charm:
	# https://github.com/canonical/mysql-k8s-operator/pull/371
	# - "canonical/mysql-k8s-operator"

	steps:
	- name: Checkout the ${{ matrix.charm-repo }} repository
	uses: actions/checkout@v3
	with:
	repository: ${{ matrix.charm-repo }}

	- name: Checkout the operator repository
	uses: actions/checkout@v3
	with:
	path: myops

	- name: Install patch dependencies
	run: pip install poetry~=1.6

	- name: Update 'ops' dependency in test charm to latest
	run: \|
	if [ -e "requirements.txt" ]; then
	sed -i -e "/^ops[ ><=]/d" -e "/canonical\/operator/d" -e "/#egg=ops/d" requirements.txt
	echo -e "\ngit+$GITHUB_SERVER_URL/$GITHUB_REPOSITORY@$GITHUB_SHA#egg=ops" >> requirements.txt
	else
	sed -i -e "s/^ops[ ><=].*/ops = {path = \"myops\"}/" pyproject.toml
	poetry lock
	fi

	- name: Install dependencies
	run: pip install tox~=4.2

	- name: Run the charm's unit tests
	run: tox -vve unit

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