From dd52931150ed42f122d9017642437c26cc1b2422 Mon Sep 17 00:00:00 2001
From: Alexey Lavinsky <cap-Bernardito@yandex.ru>
Date: Wed, 23 Sep 2020 19:46:11 +0300
Subject: [PATCH] feat: hide warning on no plugins (#1195)

---
 src/index.js        |  1 +
 test/loader.test.js | 24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/src/index.js b/src/index.js
index 8e1d25ce..b77c9c50 100644
--- a/src/index.js
+++ b/src/index.js
@@ -157,6 +157,7 @@ export default async function loader(content, map, meta) {
 
   try {
     result = await postcss(plugins).process(content, {
+      hideNothingWarning: true,
       from: resourcePath,
       to: resourcePath,
       map: options.sourceMap
diff --git a/test/loader.test.js b/test/loader.test.js
index 0195d0ce..9eb33ee2 100644
--- a/test/loader.test.js
+++ b/test/loader.test.js
@@ -449,4 +449,28 @@ describe('loader', () => {
     expect(getWarnings(stats)).toMatchSnapshot('warnings');
     expect(getErrors(stats)).toMatchSnapshot('errors');
   });
+
+  // TODO unskip after updating postcss to 8 version
+  it.skip('should not generate console.warn when plugins disabled and hideNothingWarning is "true"', async () => {
+    jest.spyOn(console, 'warn').mockImplementation(() => {});
+
+    const compiler = getCompiler('./empty.js', {
+      import: false,
+      url: false,
+    });
+    const stats = await compile(compiler);
+
+    // eslint-disable-next-line no-console
+    expect(console.warn).not.toHaveBeenCalledWith(
+      'You did not set any plugins, parser, or stringifier. ' +
+        'Right now, PostCSS does nothing. Pick plugins for your case ' +
+        'on https://www.postcss.parts/ and use them in postcss.config.js.'
+    );
+    expect(getModuleSource('./empty.css', stats)).toMatchSnapshot('module');
+    expect(getExecutedCode('main.bundle.js', compiler, stats)).toMatchSnapshot(
+      'result'
+    );
+    expect(getWarnings(stats)).toMatchSnapshot('warnings');
+    expect(getErrors(stats)).toMatchSnapshot('errors');
+  });
 });