change absolute diff to relative diff, increase price precision. #1130

	name: Tests

	on: [push, pull_request]

	env:
	FOUNDRY_PROFILE: ci
	MAINNET_RPC_URL: ${{ secrets.MAINNET_RPC_URL }}

	jobs:
	tests:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Setup Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.10'
	cache: 'pip'

	- name: Install Python dependencies
	run: pip install -r requirements.txt

	- name: Install Foundry
	uses: onbjerg/foundry-toolchain@v1
	with:
	version: nightly

	- name: Install dependencies
	run: forge install

	- name: Check contract sizes
	run: forge build --sizes

	- name: Run tests
	run: forge test -vvv --ffi

	- name: Check gas snapshots
	run: yarn compare

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