chore: minor tweaks

Author: kamilmysliwiec

packages/common/package.json

@@ -25,6 +25,7 @@
   "peerDependencies": {
     "class-transformer": "*",
     "class-validator": "*",
+    "file-type": "^20.4.1",
     "reflect-metadata": "^0.1.12 || ^0.2.0",
     "rxjs": "^7.1.0",
     "file-type": "20.4.1"

packages/common/test/pipes/file/file-type.validator.spec.ts

@@ -235,5 +235,27 @@ describe('FileTypeValidator', () => {
         'Validation failed (detected file type is image/png, expected type is jpeg)',
       );
     });
+
+    it('should handle regexp file type in error message', async () => {
+      const fileTypeValidator = new FileTypeValidator({
+        fileType: /^image\//,
+      });
+      const file = { mimetype: 'application/pdf' } as IFile;
+
+      expect(fileTypeValidator.buildErrorMessage(file)).to.equal(
+        `Validation failed (current file type is application/pdf, expected type is /^image\\//)`,
+      );
+    });
+
+    it('should handle file extension in error message', async () => {
+      const fileTypeValidator = new FileTypeValidator({
+        fileType: 'jpeg',
+      });
+      const file = { mimetype: 'image/png' } as IFile;
+
+      expect(fileTypeValidator.buildErrorMessage(file)).to.equal(
+        'Validation failed (current file type is image/png, expected type is jpeg)',
+      );
+    });
   });
 });