Fix track JSON load, make sure chunk ref path is first, and add script to help make a chunk from a graph #362

	name: Test

	on:
	push:
	branches:
	- master
	tags:
	- "*"
	pull_request:
	branches:
	- master

	jobs:
	npmtest:
	name: Run npm tests
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v2
	- name: Read .nvmrc
	# See <https://remarkablemark.org/blog/2021/03/11/setup-nodejs-with-nvmrc-in-github-actions/>
	# # And <https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#setting-an-output-parameter>
	run: echo "NODE_VERSION=$(cat .nvmrc)" >> $GITHUB_OUTPUT
	id: nvmrc
	- name: Use Node.js from .nvmrc
	uses: actions/setup-node@v2
	with:
	node-version: ${{ steps.nvmrc.outputs.NODE_VERSION }}
	- name: Install node modules as specified in lockfile
	run: npm ci
	- name: Install latest vg release
	# See https://gist.github.com/steinwaywhw/a4cd19cda655b8249d908261a62687f8 for how we pull out the right URL
	run: \|
	mkdir -p bin
	curl -sSL "$(curl -sSL https://api.github.com/repos/vgteam/vg/releases/latest \| grep 'browser_download_url.vg"' \| cut -d ':' -f 2,3 \| tr -d '"' \| sed 's/^ //g')" >bin/vg
	chmod +x bin/vg
	- name: Run tests
	run: PATH=$PATH:$(pwd)/bin CI=true npm run test
	- name: Test build
	run: npm run build

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