update(wip): I want to docker commit myself

src/icons/test/helper.ts

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+// This file contains code that we reuse between our tests.
+import helper from 'fastify-cli/helper.js'
+import * as test from 'node:test'
+import * as path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+export type TestContext = {
+  after: typeof test.after
+}
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+const AppPath = path.join(__dirname, '..', 'src', 'app.ts')
+
+// Fill in this config with all the configurations
+// needed for testing the application
+function config () {
+  return {
+    skipOverride: true // Register our application with fastify-plugin
+  }
+}
+
+// Automatically build and tear down our instance
+async function build (t: TestContext) {
+  // you can set all the options supported by the fastify CLI command
+  const argv = [AppPath]
+
+  // fastify-plugin ensures that all decorators
+  // are exposed for testing purposes, this is
+  // different from the production setup
+  const app = await helper.build(argv, config())
+
+  // Tear down our app after we are done
+  // eslint-disable-next-line no-void
+  t.after(() => void app.close())
+
+  return app
+}
+
+export {
+  config,
+  build
+}

src/icons/test/plugins/support.test.ts

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+import { test } from 'node:test'
+import * as assert from 'node:assert'
+import Fastify from 'fastify'
+import Support from '../../src/plugins/support.js'
+
+test('support works standalone', async (t) => {
+  const fastify = Fastify()
+  // eslint-disable-next-line no-void
+  void fastify.register(Support)
+  await fastify.ready()
+
+  assert.equal(fastify.someSupport(), 'hugs')
+})

src/icons/test/routes/example.test.ts

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+import { test } from 'node:test'
+import * as assert from 'node:assert'
+import { build } from '../helper.js'
+
+test('example is loaded', async (t) => {
+  const app = await build(t)
+
+  const res = await app.inject({
+    url: '/example'
+  })
+
+  assert.equal(res.payload, 'this is an example')
+})

src/icons/test/routes/root.test.ts

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+import { test } from 'node:test'
+import * as assert from 'node:assert'
+import { build } from '../helper.js'
+
+test('default root route', async (t) => {
+  const app = await build(t)
+
+  const res = await app.inject({
+    url: '/'
+  })
+  assert.deepStrictEqual(JSON.parse(res.payload), { root: true })
+})

src/icons/test/tsconfig.json

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+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "baseUrl": ".",
+    "noEmit": false
+  },
+  "include": ["../src/**/*.ts", "**/*.ts"]
+}