Add tests for syntax toggles

This add tests for the `mdx/toggleDelete`, `mdx/toggleEmphasis`,
`mdx/toggleInlineCode`, and `mdx/toggleStrong` requests.

packages/language-server/test/syntax-toggle.test.js

@@ -0,0 +1,109 @@
+/**
+ * @typedef {import('@volar/test-utils').LanguageServerHandle} LanguageServerHandle
+ * @typedef {import('@mdx-js/language-service').SyntaxToggleParams} SyntaxToggleParams
+ */
+import assert from 'node:assert/strict'
+import {afterEach, beforeEach, test} from 'node:test'
+import {createServer, fixtureUri, tsdk} from './utils.js'
+
+/** @type {LanguageServerHandle} */
+let serverHandle
+
+beforeEach(async () => {
+  serverHandle = createServer()
+  await serverHandle.initialize(fixtureUri('node16'), {
+    typescript: {enabled: false, tsdk}
+  })
+})
+
+afterEach(() => {
+  serverHandle.connection.dispose()
+})
+
+test('delete', async () => {
+  await serverHandle.openInMemoryDocument('memory://1', 'mdx', 'Hello\n')
+  const result = await serverHandle.connection.sendRequest(
+    'mdx/toggleDelete',
+    /** @satisfies {SyntaxToggleParams} */ ({
+      uri: 'memory://1',
+      range: {end: {character: 3, line: 0}, start: {character: 3, line: 0}}
+    })
+  )
+
+  assert.deepEqual(result, [
+    {
+      newText: '~',
+      range: {end: {character: 0, line: 0}, start: {character: 0, line: 0}}
+    },
+    {
+      newText: '~',
+      range: {end: {character: 5, line: 0}, start: {character: 5, line: 0}}
+    }
+  ])
+})
+
+test('emphasis', async () => {
+  await serverHandle.openInMemoryDocument('memory://1', 'mdx', 'Hello\n')
+  const result = await serverHandle.connection.sendRequest(
+    'mdx/toggleEmphasis',
+    /** @satisfies {SyntaxToggleParams} */ ({
+      uri: 'memory://1',
+      range: {end: {character: 3, line: 0}, start: {character: 3, line: 0}}
+    })
+  )
+
+  assert.deepEqual(result, [
+    {
+      newText: '_',
+      range: {end: {character: 0, line: 0}, start: {character: 0, line: 0}}
+    },
+    {
+      newText: '_',
+      range: {end: {character: 5, line: 0}, start: {character: 5, line: 0}}
+    }
+  ])
+})
+
+test('inlineCode', async () => {
+  await serverHandle.openInMemoryDocument('memory://1', 'mdx', 'Hello\n')
+  const result = await serverHandle.connection.sendRequest(
+    'mdx/toggleInlineCode',
+    /** @satisfies {SyntaxToggleParams} */ ({
+      uri: 'memory://1',
+      range: {end: {character: 3, line: 0}, start: {character: 3, line: 0}}
+    })
+  )
+
+  assert.deepEqual(result, [
+    {
+      newText: '`',
+      range: {end: {character: 0, line: 0}, start: {character: 0, line: 0}}
+    },
+    {
+      newText: '`',
+      range: {end: {character: 5, line: 0}, start: {character: 5, line: 0}}
+    }
+  ])
+})
+
+test('strong', async () => {
+  await serverHandle.openInMemoryDocument('memory://1', 'mdx', 'Hello\n')
+  const result = await serverHandle.connection.sendRequest(
+    'mdx/toggleStrong',
+    /** @satisfies {SyntaxToggleParams} */ ({
+      uri: 'memory://1',
+      range: {end: {character: 3, line: 0}, start: {character: 3, line: 0}}
+    })
+  )
+
+  assert.deepEqual(result, [
+    {
+      newText: '**',
+      range: {end: {character: 0, line: 0}, start: {character: 0, line: 0}}
+    },
+    {
+      newText: '**',
+      range: {end: {character: 5, line: 0}, start: {character: 5, line: 0}}
+    }
+  ])
+})

packages/language-service/index.js

@@ -1,4 +1,5 @@
 /**
+ * @typedef {import('./lib/commands.js').SyntaxToggleParams} SyntaxToggleParams
  * @typedef {import('./lib/service-plugin.js').Commands} Commands
  */