Also check in dev dependencies

Author: jj-ivx

lib/rules/require-dependency.js

@@ -12,15 +12,20 @@ module.exports.meta = {
 
 module.exports.create = context =>
   getImport(context, ({ node, value, path }) => {
-    const { dependencies, name: currentPackage } = packages.find(
-      ({ location }) => isSubPath(location, context.getFilename()),
+    const {
+      dependencies,
+      devDependencies,
+      name: currentPackage,
+    } = packages.find(({ location }) =>
+      isSubPath(location, context.getFilename()),
     );
 
     packages.forEach(({ name, location }) => {
       if (
         name !== currentPackage &&
         (isSubPath(name, value) || isSubPath(location, path)) &&
-        !Object.keys(dependencies).includes(name)
+        !Object.keys(dependencies).includes(name) &&
+        !Object.keys(devDependencies).includes(name)
       ) {
         context.report({
           node,

lib/utils.js

@@ -9,10 +9,14 @@ const isSubPath = (parent, path) => {
 };
 
 const packages = getPackages(process.cwd()).map(
-  ({ package: { name, dependencies = {} }, location }) => ({
+  ({
+    package: { name, dependencies = {}, devDependencies = {} },
+    location,
+  }) => ({
     name,
     location,
     dependencies,
+    devDependencies,
   }),
 );