[core] Add `default_if_no_value` and `require_equals` + add cross-lib… #73

	name: ArgMojo Unit Tests

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

	permissions:
	contents: read
	pull-requests: read

	jobs:
	testing-argmojo:
	name: Test with ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: ["ubuntu-22.04", "macos-latest"]

	runs-on: ${{ matrix.os }}
	timeout-minutes: 15

	defaults:
	run:
	shell: bash
	env:
	DEBIAN_FRONTEND: noninteractive

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

	- name: Install pixi
	run: \|
	curl -fsSL https://pixi.sh/install.sh \| sh

	- name: Add pixi to PATH
	run: \|
	echo "PIXI_HOME=$HOME/.pixi" >> $GITHUB_ENV
	echo "$HOME/.pixi/bin" >> $GITHUB_PATH

	- name: Pixi install
	run: \|
	pixi install

	- name: Build package (with retry for Mojo compiler intermittent crashes)
	run: \|
	for attempt in 1 2 3; do
	echo "=== mojo package attempt $attempt ==="
	if pixi run package; then
	echo "=== package succeeded on attempt $attempt ==="
	break
	fi
	if [ "$attempt" -eq 3 ]; then
	echo "=== package failed after 3 attempts ==="
	exit 1
	fi
	echo "=== package crashed, retrying in 5s... ==="
	sleep 5
	done

	- name: Run tests (with retry for Mojo compiler intermittent crashes)
	run: \|
	for attempt in 1 2 3; do
	echo "=== test attempt $attempt ==="
	if pixi run test; then
	echo "=== tests passed on attempt $attempt ==="
	break
	fi
	if [ "$attempt" -eq 3 ]; then
	echo "=== tests failed after 3 attempts ==="
	exit 1
	fi
	echo "=== test run crashed, retrying in 5s... ==="
	sleep 5
	done

Provide feedback