diff --git a/back/src/modules/uploads/uploads.controller.spec.ts b/back/src/modules/uploads/uploads.controller.spec.ts
new file mode 100644
index 0000000..eae70a8
--- /dev/null
+++ b/back/src/modules/uploads/uploads.controller.spec.ts
@@ -0,0 +1,93 @@
+import { describe, it, expect } from 'vitest';
+import { UploadsController } from './uploads.controller';
+
+/** Accès à la méthode privée sans instancier le contrôleur complet */
+function extract(yamlContent: string) {
+  return (UploadsController.prototype as any).extractMetadata.call({}, yamlContent);
+}
+
+describe('UploadsController.extractMetadata()', () => {
+  describe('version OpenAPI standard', () => {
+    it('"1.2.3" → major=1, minor=2, patch=3', () => {
+      const result = extract('info:\n  title: Test\n  version: "1.2.3"');
+      expect(result.versionMajor).toBe(1);
+      expect(result.versionMinor).toBe(2);
+      expect(result.versionPatch).toBe(3);
+    });
+
+    it('"1.0" → major=1, minor=0, patch=null', () => {
+      const result = extract('info:\n  title: Test\n  version: "1.0"');
+      expect(result.versionMajor).toBe(1);
+      expect(result.versionMinor).toBe(0);
+      expect(result.versionPatch).toBeNull();
+    });
+
+    it('"2" → major=2, minor=null, patch=null', () => {
+      const result = extract('info:\n  title: Test\n  version: "2"');
+      expect(result.versionMajor).toBe(2);
+      expect(result.versionMinor).toBeNull();
+      expect(result.versionPatch).toBeNull();
+    });
+
+    it('"0.0.0" → major=0, minor=0, patch=0', () => {
+      const result = extract('info:\n  title: Test\n  version: "0.0.0"');
+      expect(result.versionMajor).toBe(0);
+      expect(result.versionMinor).toBe(0);
+      expect(result.versionPatch).toBe(0);
+    });
+  });
+
+  describe('extraction du nom et description', () => {
+    it('title présent → name extrait', () => {
+      const result = extract('info:\n  title: Mon API\n  version: "1.0.0"');
+      expect(result.name).toBe('Mon API');
+    });
+
+    it('title absent → name=null', () => {
+      const result = extract('info:\n  version: "1.0.0"');
+      expect(result.name).toBeNull();
+    });
+
+    it('description présente → description extraite', () => {
+      const result = extract('info:\n  title: Test\n  version: "1.0.0"\n  description: Une description');
+      expect(result.description).toBe('Une description');
+    });
+
+    it('description absente → description=null', () => {
+      const result = extract('info:\n  title: Test\n  version: "1.0.0"');
+      expect(result.description).toBeNull();
+    });
+  });
+
+  describe('cas limite de version', () => {
+    it('version non numérique ("alpha") → major=null, minor=null, patch=null', () => {
+      const result = extract('info:\n  title: Test\n  version: alpha');
+      expect(result.versionMajor).toBeNull();
+      expect(result.versionMinor).toBeNull();
+      expect(result.versionPatch).toBeNull();
+    });
+
+    it('version absente → tout null', () => {
+      const result = extract('info:\n  title: Test');
+      expect(result.versionMajor).toBeNull();
+      expect(result.versionMinor).toBeNull();
+      expect(result.versionPatch).toBeNull();
+    });
+
+    it('version vide string "" → tout null', () => {
+      const result = extract('info:\n  title: Test\n  version: ""');
+      expect(result.versionMajor).toBeNull();
+      expect(result.versionMinor).toBeNull();
+      expect(result.versionPatch).toBeNull();
+    });
+
+    it('info absent → tout null', () => {
+      const result = extract('asyncapi: "3.0.0"');
+      expect(result.name).toBeNull();
+      expect(result.description).toBeNull();
+      expect(result.versionMajor).toBeNull();
+      expect(result.versionMinor).toBeNull();
+      expect(result.versionPatch).toBeNull();
+    });
+  });
+});
diff --git a/back/src/modules/uploads/uploads.controller.ts b/back/src/modules/uploads/uploads.controller.ts
index 2a34527..23fa8ef 100644
--- a/back/src/modules/uploads/uploads.controller.ts
+++ b/back/src/modules/uploads/uploads.controller.ts
@@ -156,22 +156,7 @@ export class UploadsController {
 
     /* Extraction des métadonnées depuis le fichier principal */
     const mainContent = fileContents.find((f) => f.name === mainFileName)!.content;
-    const parsed = yaml.load(mainContent) as Record<string, unknown>;
-    const info = parsed['info'] as Record<string, unknown> | undefined;
-    const name = typeof info?.['title'] === 'string' ? info['title'] : null;
-    const description = typeof info?.['description'] === 'string' ? info['description'] : null;
-
-    /* Décomposer la version en major.minor.patch */
-    let versionMajor: number | null = null;
-    let versionMinor: number | null = null;
-    let versionPatch: number | null = null;
-    const versionStr = typeof info?.['version'] === 'string' ? info['version'] : null;
-    if (versionStr) {
-      const parts = versionStr.split('.').map((p) => parseInt(p, 10));
-      if (parts.length >= 1 && !isNaN(parts[0])) versionMajor = parts[0];
-      if (parts.length >= 2 && !isNaN(parts[1])) versionMinor = parts[1];
-      if (parts.length >= 3 && !isNaN(parts[2])) versionPatch = parts[2];
-    }
+    const { name, description, versionMajor, versionMinor, versionPatch } = this.extractMetadata(mainContent);
 
     return { valid: true, type: detectedType, mainFile: mainFileName, name, versionMajor, versionMinor, versionPatch, description, errors: [] };
   }
@@ -274,6 +259,33 @@ export class UploadsController {
     return entry;
   }
 
+  /** Extrait les métadonnées (titre, description, version) depuis le contenu YAML */
+  private extractMetadata(yamlContent: string): {
+    name: string | null;
+    description: string | null;
+    versionMajor: number | null;
+    versionMinor: number | null;
+    versionPatch: number | null;
+  } {
+    const parsed = yaml.load(yamlContent) as Record<string, unknown>;
+    const info = parsed['info'] as Record<string, unknown> | undefined;
+    const name = typeof info?.['title'] === 'string' ? info['title'] : null;
+    const description = typeof info?.['description'] === 'string' ? info['description'] : null;
+
+    let versionMajor: number | null = null;
+    let versionMinor: number | null = null;
+    let versionPatch: number | null = null;
+    const versionStr = typeof info?.['version'] === 'string' ? info['version'] : null;
+    if (versionStr) {
+      const parts = versionStr.split('.').map((p) => parseInt(p, 10));
+      if (parts.length >= 1 && !isNaN(parts[0])) versionMajor = parts[0];
+      if (parts.length >= 2 && !isNaN(parts[1])) versionMinor = parts[1];
+      if (parts.length >= 3 && !isNaN(parts[2])) versionPatch = parts[2];
+    }
+
+    return { name, description, versionMajor, versionMinor, versionPatch };
+  }
+
   /** Valide la syntaxe YAML et lève une BadRequestException si invalide */
   private validateYamlSyntax(content: string, filename: string): void {
     try {