test: add test for graphql

examples/graphql/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "@vitest/graphql",
+  "private": true,
+  "files": [
+    "dist",
+    "types"
+  ],
+  "scripts": {
+    "coverage": "vitest run --coverage",
+    "dev": "vite",
+    "test": "vitest",
+    "test:ui": "vitest --ui"
+  },
+  "dependencies": {
+    "@rollup/plugin-graphql": "^1.1.0",
+    "graphql": "^16.3.0"
+  },
+  "devDependencies": {
+    "@vitest/ui": "latest",
+    "vite": "latest",
+    "vitest": "latest"
+  }
+}

examples/graphql/src/Fragment.gql

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+fragment CurrentUserFields on User {
+  id
+}

examples/graphql/src/Query.gql

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+#import "./Fragment.gql"
+
+query Foo {
+  currentUser {
+    ...CurrentUserFields
+  }
+}

examples/graphql/src/query.ts

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+import QUERY from './Query.gql'
+
+export function getQuery() {
+  return QUERY
+}

examples/graphql/test/query.spec.ts

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+import { expect, test } from 'vitest'
+import { getQuery } from '../src/query'
+
+test('query is defined', () => {
+  expect(getQuery()).toBeDefined()
+})

examples/graphql/vite.config.ts

@@ -0,0 +1,9 @@
+/// <reference types="vitest" />
+
+import { defineConfig } from 'vite'
+import graphql from '@rollup/plugin-graphql'
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  plugins: [graphql()],
+})