Convert tests to typescript

Author: thecrypticace

tests/fixtures.test.js renamed to tests/fixtures.test.ts

@@ -1,7 +1,8 @@
 import { describe, test } from 'vitest'
+import type { TestEntry } from './utils.js'
 import { format, no, t, yes } from './utils.js'
 
-let html = [
+let html: TestEntry[] = [
   t`<div class="${yes}"></div>`,
   t`<!-- <div class="${no}"></div> -->`,
   t`<div class="${no} {{ 'p-0 sm:p-0 m-0' }}"></div>`,
@@ -26,7 +27,7 @@ let html = [
   ],
 ]
 
-let css = [
+let css: TestEntry[] = [
   t`@apply ${yes};`,
   t`/* @apply ${no}; */`,
   t`@not-apply ${no};`,
@@ -37,7 +38,7 @@ let css = [
   ],
 ]
 
-let javascript = [
+let javascript: TestEntry[] = [
   t`;<div class="${yes}" />`,
   t`;<div ns:class="${no}" />`,
   t`/* <div class="${no}" /> */`,
@@ -112,7 +113,7 @@ javascript = javascript.concat(
   ]),
 )
 
-let vue = [
+let vue: TestEntry[] = [
   ...html,
   t`<div :class="'${yes}'"></div>`,
   t`<!-- <div :class="'${no}'"></div> -->`,
@@ -158,7 +159,7 @@ let vue = [
   ],
 ]
 
-let glimmer = [
+let glimmer: TestEntry[] = [
   t`<div class='${yes}'></div>`,
   t`<!-- <div class='${no}'></div> -->`,
   t`<div class='${yes} {{"${yes}"}}'></div>`,
@@ -200,7 +201,7 @@ let glimmer = [
   ],
 ]
 
-let tests = {
+let tests: Record<string, TestEntry[]> = {
   html,
   glimmer,
   lwc: html,

tests/format.test.js renamed to tests/format.test.ts

@@ -1,10 +1,18 @@
 import { createRequire } from 'node:module'
 import { test } from 'vitest'
+import type { TestEntry } from './utils.js'
 import { format, no, pluginPath, t, yes } from './utils.js'
 
 const require = createRequire(import.meta.url)
 
-let tests = [
+interface PluginTest {
+  versions: number[]
+  plugins: string[]
+  options?: Record<string, any>
+  tests: Record<string, TestEntry[]>
+}
+
+let tests: PluginTest[] = [
   {
     versions: [2, 3],
     plugins: ['@trivago/prettier-plugin-sort-imports'],
@@ -479,6 +487,7 @@ for (const group of tests) {
       // Hide logs from Pug's prettier plugin
       if (parser === 'pug') {
         let pug = await import('@prettier/plugin-pug')
+        // @ts-ignore
         pug.logger.level = 'off'
       }
 

tests/plugins.test.js renamed to tests/plugins.test.ts

@@ -11,7 +11,19 @@ let testClassNameSorted = 'p-0 sm:p-0'
 export let yes = '__YES__'
 export let no = '__NO__'
 
-export function t(strings, ...values) {
+export type TestEntry = [
+  input: string,
+  output: string,
+  options?: {
+    tailwindPreserveWhitespace?: boolean
+    tailwindPreserveDuplicates?: boolean
+  },
+]
+
+export function t(
+  strings: TemplateStringsArray,
+  ...values: string[]
+): TestEntry {
   let input = ''
   strings.forEach((string, i) => {
     input += string + (values[i] ? testClassName : '')
@@ -30,7 +42,7 @@ export function t(strings, ...values) {
 
 export let pluginPath = path.resolve(__dirname, '../dist/index.mjs')
 
-export async function format(str, options = {}) {
+export async function format(str: string, options: prettier.Options = {}) {
   let result = await prettier.format(str, {
     pluginSearchDirs: [__dirname], // disable plugin autoload
     semi: false,