fixed #2734

yarnpkg · Jun 21, 2017 · b8282f0 · b8282f0
1 parent 73a758e
commit b8282f0
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diff --git a/__tests__/commands/install/integration-deduping.js b/__tests__/commands/install/integration-deduping.js
@@ -220,3 +220,22 @@ test.concurrent('install should not hardlink repeated dependencies if linkDuplic
     expect(b_a.ino).not.toEqual(c_a.ino);
   });
 });
+
+test.concurrent('install should not copy node_modules when hardlinking', (): Promise<void> => {
+  // https://github.com/yarnpkg/yarn/issues/2734
+  return runInstall({linkDuplicates: true}, 'hardlink-collision', async config => {
+    const b_a = await fs.stat(
+      path.join(
+        config.cwd,
+        'node_modules/webpack-stream/node_modules/enhanced-resolve/node_modules/memory-fs/package.json',
+      ),
+    );
+    const c_a = await fs.stat(
+      path.join(
+        config.cwd,
+        'node_modules/webpack-dev-middleware/node_modules/enhanced-resolve/node_modules/memory-fs/package.json',
+      ),
+    );
+    expect(b_a.ino).toEqual(c_a.ino);
+  });
+});
diff --git a/__tests__/fixtures/install/hardlink-collision/package.json b/__tests__/fixtures/install/hardlink-collision/package.json
@@ -0,0 +1,7 @@
+{
+  "dependencies": {
+    "webpack": "^3.0.0",
+    "webpack-dev-middleware": "^1.10.2",
+    "webpack-stream": "^3.2.0"
+  }
+}