From 4d045695f74abc9f8c6cadb9d5c4a314c81db9c5 Mon Sep 17 00:00:00 2001
From: Raz Luvaton <16746759+rluvaton@users.noreply.github.com>
Date: Tue, 30 May 2023 16:01:25 +0300
Subject: [PATCH] fix: support requiring files with `less` extension (#3465)

---
 packages/vitest/src/runtime/setup.node.ts | 1 +
 test/core/src/file-less.less              | 5 +++++
 test/core/test/require.test.ts            | 2 ++
 3 files changed, 8 insertions(+)
 create mode 100644 test/core/src/file-less.less

diff --git a/packages/vitest/src/runtime/setup.node.ts b/packages/vitest/src/runtime/setup.node.ts
index ff6556fac41e..789a6e69beb7 100644
--- a/packages/vitest/src/runtime/setup.node.ts
+++ b/packages/vitest/src/runtime/setup.node.ts
@@ -39,6 +39,7 @@ export async function setupGlobalEnv(config: ResolvedConfig) {
   _require.extensions['.css'] = () => ({})
   _require.extensions['.scss'] = () => ({})
   _require.extensions['.sass'] = () => ({})
+  _require.extensions['.less'] = () => ({})
 
   installSourcemapsSupport({
     getSourceMap: source => state.moduleCache.getSourceMap(source),
diff --git a/test/core/src/file-less.less b/test/core/src/file-less.less
new file mode 100644
index 000000000000..eb4bf0c8ee67
--- /dev/null
+++ b/test/core/src/file-less.less
@@ -0,0 +1,5 @@
+@color: red;
+
+.red {
+  color: @color;
+}
\ No newline at end of file
diff --git a/test/core/test/require.test.ts b/test/core/test/require.test.ts
index a26e1f59e177..ba06ddc9cf5e 100644
--- a/test/core/test/require.test.ts
+++ b/test/core/test/require.test.ts
@@ -7,9 +7,11 @@ describe('using "require" to import a module', () => {
     const css = _require('./../src/file-css.css')
     const sass = _require('./../src/file-sass.sass')
     const scss = _require('./../src/file-scss.scss')
+    const less = _require('./../src/file-less.less')
 
     expect(css).toEqual({})
     expect(sass).toEqual({})
     expect(scss).toEqual({})
+    expect(less).toEqual({})
   })
 })