Upgrade pocket-ic and install bitcoin canister #653

	name: Backend Tests

	on:
	pull_request:
	paths:
	- # Scripts, GitHub actions that contain 'backend' in their path.
	'*/backend*'
	- # The backend source code
	'src/backend/**'
	- 'src/shared/**'
	- # Rust files such as Cargo.lock, Cargo.toml and rust-toolchain.toml
	'*/Cargo'
	- '*/rust*'
	- # The dockerfile used in this CI run, and the scripts it COPY's.
	'Dockerfile'
	- 'docker/**'
	- # There may be some files in frontend folder that contains 'backend' in their name.
	'!src/frontend/**'
	workflow_dispatch:

	jobs:

	docker-build-base:
	runs-on: ubuntu-20.04
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Build Base Docker Image
	uses: ./.github/actions/docker-build-base

	docker-build:
	runs-on: ubuntu-20.04
	needs: docker-build-base
	strategy:
	matrix:
	include:
	- name: backend.wasm.gz
	target: scratch_backend

	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Build canister WASM
	uses: ./.github/actions/docker-build-backend
	with:
	name: ${{ matrix.name }}
	target: ${{ matrix.target }}

	tests:
	runs-on: ubuntu-20.04
	needs: [ 'docker-build' ]
	steps:
	- uses: actions/checkout@v4

	- uses: actions/cache@v4
	with:
	path: \|
	~/.cargo/registry
	~/.cargo/git
	target
	key: ${{ runner.os }}-cargo-backend-tests-${{ hashFiles('Cargo.lock', 'rust-toolchain.toml') }}

	- name: Download backend.wasm.gz
	uses: actions/download-artifact@v4
	with:
	name: backend.wasm.gz
	path: .

	- name: "Run backend tests"
	working-directory: .
	run: ./scripts/test.backend.sh

	may-merge:
	needs: [ 'tests' ]
	runs-on: ubuntu-20.04
	steps:
	- name: Cleared for merging
	run: echo OK

Provide feedback