Handle error when canvas is undefined #18

	# SPDX-FileCopyrightText: 2023 The PFDL VS Code Extension Contributors
	# SPDX-License-Identifier: MIT

	name: Testing code visualization

	on:
	pull_request:
	branches:
	- main
	push:
	paths:
	- 'client/src/**.ts'

	permissions:
	contents: read

	jobs:
	run-tests:
	name: Run unit tests
	runs-on: ubuntu-22.04
	steps:
	- name: Checkout repository
	uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
	- name: Setup Node
	uses: actions/setup-node@60edb5dd545a775178f52524783378180af0d1f8 # v4.0.2
	with:
	node-version: '18'
	- name: Install npm packages
	run: npm install
	- name: Run unit tests
	run: npm run test:ci
	- name: Upload test results
	uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
	with:
	name: Unit test results
	path: ./junit.xml
	- name: Upload code coverage results
	uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
	with:
	name: Code coverage results
	path: coverage/cobertura-coverage.xml

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