Implement query_exactly_one #641

	name: Rust

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	env:
	CARGO_TERM_COLOR: always

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Cache
	uses: actions/cache@v2
	with:
	path: \|
	~/.cargo
	target/
	key: ${{ runner.os }}-${{ hashFiles('Cargo.toml') }}
	restore-keys: \|
	${{ runner.os }}-${{ hashFiles('Cargo.toml') }}
	${{ runner.os }}-
	- name: Build
	run: cargo build --verbose
	- name: Run tests
	run: cargo test --features="serde-error,bwk" --verbose
	- name: Check samples
	run: \|
	cd biscuit-auth
	cargo run --release --example testcases --features serde-error -- ./samples --json > ./samples/samples.json
	git diff --exit-code


	capi:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout sources
	uses: actions/checkout@v2
	- name: Cache
	uses: actions/cache@v2
	with:
	path: \|
	~/.cargo
	target/
	key: ${{ runner.os }}-cargoc-${{ hashFiles('Cargo.toml') }}
	restore-keys: \|
	${{ runner.os }}-cargoc-${{ hashFiles('Cargo.toml') }}
	${{ runner.os }}-cargoc-
	${{ runner.os }}-${{ hashFiles('Cargo.toml') }}
	${{ runner.os }}-
	- name: Install cargo-c
	uses: actions-rs/cargo@v1
	with:
	command: install
	args: cargo-c --version 0.9.14+cargo-0.66
	- name: Run cargo-c tests
	uses: actions-rs/cargo@v1
	with:
	command: ctest
	args: --release

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