test: add test cases for isSubDirOrEqual

packages/solutions/app-tools/src/analyze/getBundleEntry.ts

@@ -10,6 +10,7 @@ import type { Entrypoint } from '@modern-js/types';
 import type { AppNormalizedConfig, IAppContext } from '../types';
 import { getFileSystemEntry } from './getFileSystemEntry';
 import { JS_EXTENSIONS } from './constants';
+import { isSubDirOrEqual } from './utils';
 
 const ensureExtensions = (file: string) => {
   if (!path.extname(file)) {
@@ -24,16 +25,6 @@ const ensureExtensions = (file: string) => {
  */
 const isDirectory = (file: string) => !path.extname(file);
 
-const isSubDirOrEqual = (parent: string, child: string): boolean => {
-  if (parent === child) {
-    return true;
-  }
-  const relative = path.relative(parent, child);
-  const isSubdir =
-    relative && !relative.startsWith('..') && !path.isAbsolute(relative);
-  return Boolean(isSubdir);
-};
-
 const ifAlreadyExists = (
   entrypoints: Entrypoint[],
   checked: Entrypoint,

packages/solutions/app-tools/src/analyze/utils.ts

@@ -203,3 +203,13 @@ export const checkIsBuildCommands = () => {
 
   return buildCommands.includes(command);
 };
+
+export const isSubDirOrEqual = (parent: string, child: string): boolean => {
+  if (parent === child) {
+    return true;
+  }
+  const relative = path.relative(parent, child);
+  const isSubdir =
+    relative && !relative.startsWith('..') && !path.isAbsolute(relative);
+  return Boolean(isSubdir);
+};

packages/solutions/app-tools/tests/analyze/utils.test.ts

@@ -0,0 +1,28 @@
+import path from 'node:path';
+import { isSubDirOrEqual } from '../../src/analyze/utils';
+
+describe('isSubDirOrEqual', () => {
+  it('should return true for the same directories', () => {
+    const parent = path.resolve('/Users/test');
+    const child = path.resolve('/Users/test');
+    expect(isSubDirOrEqual(parent, child)).toBe(true);
+  });
+
+  it('should return true for a child directory', () => {
+    const parent = path.resolve('/Users');
+    const child = path.resolve('/Users/test');
+    expect(isSubDirOrEqual(parent, child)).toBe(true);
+  });
+
+  it('should return false for a non-child directory', () => {
+    const parent = path.resolve('/Users/test');
+    const child = path.resolve('/Users/anotherTest');
+    expect(isSubDirOrEqual(parent, child)).toBe(false);
+  });
+
+  it('should return false for a directory at a higher level', () => {
+    const parent = path.resolve('/Users/test/deeper');
+    const child = path.resolve('/Users/test');
+    expect(isSubDirOrEqual(parent, child)).toBe(false);
+  });
+});