fix(eslint-plugin-esm): report on ./.. and ./

.changeset/young-dogs-heal.md

@@ -0,0 +1,5 @@
+---
+"eslint-plugin-esm": patch
+---
+
+fix(eslint-plugin-esm): report on `./..` and `./`

packages/eslint-plugin-esm/doc/rules/nearest-relative-path.md

@@ -27,6 +27,10 @@ import "./../foo" // filename: /a/b/c/d/e.js
 import("./../foo") // filename: /a/b/c/d/e.js
 export * from "./../foo" // filename: /a/b/c/d/e.js
 export {a} from "./../foo" // filename: /a/b/c/d/e.js
+import foo from "./" // filename: /a/b/c/d/e.js
+import foo from '../' // filename: /a/b/c/d/e.js
+import foo from '../../' // filename: /a/b/c/d/e.js
+import foo from './..' // filename: /a/b/c/d/e.js
 ```
 
 ### Pass
@@ -44,5 +48,7 @@ export * from "./a" // filename: /a/b/c/d/e.js
 export {a} from "a" // filename: /a/b/c/d/e.js
 export {a} from "./a" // filename: /a/b/c/d/e.js
 import foo from "." // filename: /a/b/c/d/e.js
+import foo from '..' // filename: /a/b/c/d/e.js
+import foo from '../..' // filename: /a/b/c/d/e.js
 ```
 <!-- prettier-ignore-end -->

packages/eslint-plugin-esm/src/rules/nearest-relative-path.spec.ts

@@ -13,7 +13,10 @@ const valid = [
   'export * from "./a"',
   'export {a} from "a"',
   'export {a} from "./a"',
+
   'import foo from "."',
+  "import foo from '..'",
+  "import foo from '../..'",
 ].map((code) => ({ code, filename: "/a/b/c/d/e.js" }));
 
 const invalid = [
@@ -39,6 +42,11 @@ const invalid = [
   'import("./../foo")',
   'export * from "./../foo"',
   'export {a} from "./../foo"',
+
+  'import foo from "./"',
+  "import foo from '../'",
+  "import foo from '../../'",
+  "import foo from './..'",
 ].map((code) => ({ code, filename: "/a/b/c/d/e.js" }));
 
 test({ valid, invalid, ...nearestRelativePath });

packages/eslint-plugin-esm/src/rules/nearest-relative-path.ts

@@ -15,13 +15,16 @@ function check(filename: string, source: string) {
   ) {
     return false;
   }
+  if (source.endsWith("/")) {
+    return true;
+  }
   const currentPath = path.dirname(filename);
   const absoluteSource = path.resolve(currentPath, source);
   // compatible with windows
   let resultPath = path
     .relative(currentPath, absoluteSource)
     .replaceAll("\\", "/");
-  if (!resultPath.startsWith("./") && !resultPath.startsWith("../")) {
+  if (!resultPath.startsWith("./") && !resultPath.startsWith("..")) {
     resultPath = `./${resultPath}`;
   }
   return resultPath !== source;