solved(python): baekjoon 2150 #79

	name: Run Tests for Python Problems

	on:
	push:
	branches:
	- main

	jobs:
	detect-changes:
	runs-on: ubuntu-latest
	outputs:
	matrix: ${{ steps.detect-changes.outputs.matrix }}
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 2

	- name: Detect changed files
	id: detect-changes
	run: \|
	git config core.quotepath false

	if git rev-parse HEAD~1 >/dev/null 2>&1; then
	base_commit="HEAD~1"
	else
	base_commit="HEAD"
	fi

	# 파이썬 파일이 수정된 디렉토리만 추출
	changed_dirs=$(git diff --name-only $base_commit HEAD \| grep -E '\.py$' \| awk -F'/' '{OFS="/"; $NF=""; print $0}' \| sed 's/\/$//' \| sort -u \|\| true)

	json="["
	for dir in $changed_dirs; do
	if [ -d "$dir" ]; then
	root=$(echo "$dir" \| awk -F'/' '{print $1"/"$2}')
	version_file="$root/.python-version"

	json+="{\"dir\":\"$dir\",\"python_version\":\"$(cat "$version_file" \| tr -d '\r\n')\"},"
	fi
	done

	json="${json%,}]"
	echo "matrix=$json" >> $GITHUB_OUTPUT
	shell: bash

	run-tests:
	needs: detect-changes
	runs-on: ubuntu-latest
	if: needs.detect-changes.outputs.matrix != '[]'
	strategy:
	matrix:
	include: ${{ fromJson(needs.detect-changes.outputs.matrix) }}
	steps:
	- uses: actions/checkout@v4

	- name: Set up Python ${{ matrix.python_version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python_version }}

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install pytest parameterized

	- name: Run Tests in ${{ matrix.dir }}
	run: \|
	pytest ${{ matrix.dir }}/test_main.py

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