add tests

.gitignore

@@ -1,2 +1,3 @@
 dist/*
 node_modules/*
+coverage/*

package.json

@@ -8,20 +8,24 @@
 	"scripts": {
 		"build": "tsup",
 		"lint": "biome ci",
-		"clean": "rm -rf dist"
+		"clean": "rm -rf dist",
+		"test": "vitest run",
+		"test:ci": "vitest run --coverage"
 	},
 	"dependencies": {
 		"@biomejs/biome": "^1.8.3",
 		"@graphql-codegen/cli": "^2.0.0",
 		"@graphql-codegen/plugin-helpers": "^2.0.0",
 		"fs-extra": "^10.0.0",
-		"prettier": "^3.3.3"
+		"prettier": "^3.3.3",
+		"vitest": "^2.0.5"
 	},
 	"devDependencies": {
 		"@changesets/cli": "^2.27.7",
 		"@types/fs-extra": "^11.0.4",
 		"@types/graphql": "^14.5.0",
 		"@types/node": "^20.0.0",
+		"@vitest/coverage-v8": "^2.0.5",
 		"tsup": "^8.2.4",
 		"typescript": "^5.0.0"
 	},