1 files changed, 27 insertions, 0 deletions
diff --git a/packages/server/src/tools/read-many-files.test.ts b/packages/server/src/tools/read-many-files.test.ts
index ea801ddb..5c6d94fa 100644
--- a/packages/server/src/tools/read-many-files.test.ts
+++ b/packages/server/src/tools/read-many-files.test.ts
@@ -115,6 +115,33 @@ describe('ReadManyFilesTool', () => {
       };
       expect(tool.validateParams(params)).toBeNull();
     });
+
+    it('should return error if paths array contains an empty string', () => {
+      const params = { paths: ['file1.txt', ''] };
+      expect(tool.validateParams(params)).toBe(
+        'Each item in "paths" must be a non-empty string/glob pattern.',
+      );
+    });
+
+    it('should return error if include array contains non-string elements', () => {
+      const params = {
+        paths: ['file1.txt'],
+        include: ['*.ts', 123] as string[],
+      };
+      expect(tool.validateParams(params)).toBe(
+        'If provided, "include" must be an array of strings/glob patterns.',
+      );
+    });
+
+    it('should return error if exclude array contains non-string elements', () => {
+      const params = {
+        paths: ['file1.txt'],
+        exclude: ['*.log', {}] as string[],
+      };
+      expect(tool.validateParams(params)).toBe(
+        'If provided, "exclude" must be an array of strings/glob patterns.',
+      );
+    });
   });
 
   describe('execute', () => {