From 02bb11f9b5e9a6a7f2a3f34d9cf906f7ba4ad766 Mon Sep 17 00:00:00 2001
From: iChenLei <chenleicoder@foxmail.com>
Date: Tue, 31 May 2022 14:17:57 +0800
Subject: [PATCH 1/3] fix: yarn exec regession

---
 .github/workflows/ci.yml | 19 +++++++++++++++++++
 test/yarn/package.json   |  6 ++++++
 2 files changed, 25 insertions(+)
 create mode 100644 test/yarn/package.json

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d7212ce9b..047fcb7f3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -80,6 +80,25 @@ jobs:
      - name: Run Benchmark
        run: node ./bm.js
   
+  yarn-regression:
+    name: 'yarn exec stylus regression test'
+    runs-on: macos-latest
+    steps:
+     - uses: actions/checkout@v3
+     - uses: actions/setup-node@v3
+       with:
+         node-version: '18'
+     - name: Install npm dependencies
+       run: npm install
+     - name: Print put node & npm version
+       run: node --version && npm --version
+     - name: Install yarn global
+       run: npm install -g yarn
+     - name: Run Yarn
+       run: cd ./test/yarn
+       run: yarn install
+       run: yarn run stylus --version
+  
   coverage:
     name: 'Run nyc for code coverage'
     runs-on: ubuntu-latest
diff --git a/test/yarn/package.json b/test/yarn/package.json
new file mode 100644
index 000000000..cecae0968
--- /dev/null
+++ b/test/yarn/package.json
@@ -0,0 +1,6 @@
+{
+    "name": "yarn-regression",
+    "dependencies": {
+        "stylus": "file:../../"
+    }
+}

From 87e67369823206ae906eba9aba40bf514c9cd9a4 Mon Sep 17 00:00:00 2001
From: iChenLei <chenleicoder@foxmail.com>
Date: Tue, 31 May 2022 14:19:51 +0800
Subject: [PATCH 2/3] fix: ci yaml config

---
 .github/workflows/ci.yml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 047fcb7f3..0c8297cd6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -95,9 +95,7 @@ jobs:
      - name: Install yarn global
        run: npm install -g yarn
      - name: Run Yarn
-       run: cd ./test/yarn
-       run: yarn install
-       run: yarn run stylus --version
+       run: cd ./test/yarn && yarn install && yarn run stylus --version
   
   coverage:
     name: 'Run nyc for code coverage'

From b372e8594d07226809bf2a61f49192db6dec71c0 Mon Sep 17 00:00:00 2001
From: iChenLei <chenleicoder@foxmail.com>
Date: Tue, 31 May 2022 14:39:48 +0800
Subject: [PATCH 3/3] fix: make it crash

---
 .github/workflows/ci.yml | 6 +++---
 test/yarn/package.json   | 4 +---
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0c8297cd6..bb67dafed 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -88,14 +88,14 @@ jobs:
      - uses: actions/setup-node@v3
        with:
          node-version: '18'
-     - name: Install npm dependencies
-       run: npm install
      - name: Print put node & npm version
        run: node --version && npm --version
      - name: Install yarn global
        run: npm install -g yarn
+     - name: open a new folder
+       run: cd ./test/yarn
      - name: Run Yarn
-       run: cd ./test/yarn && yarn install && yarn run stylus --version
+       run: yarn install && yarn add stylus@latest && yarn run stylus
   
   coverage:
     name: 'Run nyc for code coverage'
diff --git a/test/yarn/package.json b/test/yarn/package.json
index cecae0968..e4055e735 100644
--- a/test/yarn/package.json
+++ b/test/yarn/package.json
@@ -1,6 +1,4 @@
 {
     "name": "yarn-regression",
-    "dependencies": {
-        "stylus": "file:../../"
-    }
+    "dependencies": {}
 }