Add workflow for integration tests, fix encoding / decoding of managed decimals #15

	name: MultiversX Integration Tests

	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	integration_tests:
	runs-on: ubuntu-latest

	steps:
	# Step 1: Checkout the repository
	- name: Checkout code
	uses: actions/checkout@v3

	# Step 2: Set up Python environment
	- name: Set up Python 3.x
	uses: actions/setup-python@v4
	with:
	python-version: '3.x'

	# Step 3: Install pipx (to manage Python tools)
	- name: Install pipx
	run: \|
	python3 -m pip install --user pipx
	python3 -m pipx ensurepath
	# Add the pipx binary location to PATH
	echo "$HOME/.local/bin" >> $GITHUB_PATH
	shell: bash

	# Step 4: Install mxpy (MultiversX Python SDK)
	- name: Install mxpy (MultiversX SDK)
	run: \|
	pipx install multiversx-sdk-cli --force

	# Step 5: Set up MultiversX localnet using mxpy
	- name: Set up MultiversX localnet
	run: \|
	# Start the local testnet with mxpy
	mkdir -p ~/localnet && cd ~/localnet
	mxpy localnet setup
	nohup mxpy localnet start > localnet.log 2>&1 & echo $! > localnet.pid
	sleep 60 # Allow time for the testnet to fully start

	# Step 6: Install Node.js and dependencies
	- name: Set up Node.js environment
	uses: actions/setup-node@v3
	with:
	node-version: '16.x'

	- name: Install Node.js dependencies
	run: npm install

	# Step 7: Run integration tests
	- name: Run integration tests
	run: \|
	npm run tests-localnet

	# Step 8: Stop the testnet using the stored PID
	- name: Stop MultiversX local testnet
	if: success() \|\| failure()
	run: \|
	kill $(cat localnet.pid) \|\| echo "Testnet already stopped"

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