docs(testing): move modules testing section to module authors guide (#7643)

docs/content/1.getting-started/9.testing.md

@@ -1,7 +1,8 @@
 # Testing
 
 ::alert{icon=👉}
-Test utils are still in development and the API and behavior may change. Currently, it's for module authors to preview but not yet ready for testing production apps.
+Test utils are still in development and the API and behavior may change. Currently, it is in preview stage but not yet ready for testing production apps.
+If you are a module author, you can find more specific informations in the [Module Author's guide](/guide/going-further/modules#testing)
 ::
 
 In Nuxt 3, we have a rewritten version of `@nuxt/test-utils` available as `@nuxt/test-utils-edge`. We support [Vitest](https://github.com/vitest-dev/vitest) and [Jest](https://jestjs.io/) as the test runner.
@@ -140,54 +141,6 @@ const pageUrl = url('/page')
 // 'http://localhost:6840/page'
 ```
 
-## Testing Modules
-
-### Fixture Setup
-
-To test the modules we create, we could set up some Nuxt apps as fixtures and test their behaviors. For example, we can create a simple Nuxt app under `./test/fixture` with the configuration like:
-
-```ts
-// nuxt.config.js
-import MyModule from '../../src'
-
-export default defineNuxtConfig({
-  modules: [
-    MyModule
-  ]
-})
-```
-
-### Tests Setup
-
-We can create a test file and use the `rootDir` to test the fixture.
-
-```ts
-// basic.test.js
-import { describe, it, expect } from 'vitest'
-import { fileURLToPath } from 'node:url'
-import { setup, $fetch } from '@nuxt/test-utils-edge'
-
-describe('ssr', async () => {
-  await setup({
-    rootDir: fileURLToPath(new URL('./fixture', import.meta.url)),
-  })
-
-  it('renders the index page', async () => {
-    // Get response to a server-rendered page with `$fetch`.
-    const html = await $fetch('/')
-
-    expect(html).toContain('<a>A Link</a>')
-  })
-})
-```
-
-For more usage, please refer to our [tests for Nuxt 3 framework](https://github.com/nuxt/framework/blob/main/test/basic.test.ts).
-
-## Mock utils
-
-* `mockFn()`: Returns a mocked function based on test runner.
-* `mockLogger()`: Mocks logger using [`consola.mockTypes`](https://github.com/unjs/consola#mocktypes) and `mockFn()`. Returns an object of mocked logger types.
-
 ## Testing in a Browser
 
 ::alert{icon=🚧}

docs/content/2.guide/4.going-further/3.modules.md

@@ -178,7 +178,51 @@ If you have an already published and working module and want to transfer it to n
 
 ### `@nuxt/test-utils`
 
-Nuxt 3 has a testing library for testing Nuxt apps and modules. You can check out [testing modules](/getting-started/testing#testing-modules) for more information and examples.
+#### Fixture Setup
+
+To test the modules we create, we could set up some Nuxt apps as fixtures and test their behaviors. For example, we can create a simple Nuxt app under `./test/fixture` with the configuration like:
+
+```ts
+// nuxt.config.js
+import MyModule from '../../src'
+
+export default defineNuxtConfig({
+  modules: [
+    MyModule
+  ]
+})
+```
+
+#### Tests Setup
+
+We can create a test file and use the `rootDir` to test the fixture.
+
+```ts
+// basic.test.js
+import { describe, it, expect } from 'vitest'
+import { fileURLToPath } from 'node:url'
+import { setup, $fetch } from '@nuxt/test-utils-edge'
+
+describe('ssr', async () => {
+  await setup({
+    rootDir: fileURLToPath(new URL('./fixture', import.meta.url)),
+  })
+
+  it('renders the index page', async () => {
+    // Get response to a server-rendered page with `$fetch`.
+    const html = await $fetch('/')
+
+    expect(html).toContain('<a>A Link</a>')
+  })
+})
+```
+
+For more usage, please refer to our [tests for Nuxt 3 framework](https://github.com/nuxt/framework/blob/main/test/basic.test.ts).
+
+### Mock utils
+
+- `mockFn()`: Returns a mocked function based on test runner.
+- `mockLogger()`: Mocks logger using [`consola.mockTypes`](https://github.com/unjs/consola#mocktypes) and `mockFn()`. Returns an object of mocked logger types.
 
 ### Testing Externally