Add test case for the validate command

src/core/models/SpecificationFile.ts

@@ -106,19 +106,21 @@ export class Specification {
       if (proxyUrl) {
         try {
           new URL(proxyUrl);
-          const proxyAgent = new HttpsProxyAgent(proxyUrl,);
+          const proxyAgent = new HttpsProxyAgent(proxyUrl);
           fetchOptions.agent = proxyAgent;
+          response = await fetch(targetUrl,fetchOptions);
         } catch (error) {
           throw new Error(`Invalid proxy URL: ${proxyUrl}`);
         }
       }
 
-      // Fetch the target URL
-      response = await fetch(targetUrl, fetchOptions);
+      response = await fetch(targetUrl);
       if (!response.ok) {
+        //   console.log(response+" sdf")
         throw new ErrorLoadingSpec('url', targetUrl);
       }
     } catch (error) {
+      console.log(error);
       throw new ErrorLoadingSpec('url', targetUrl);
     }
 

test/integration/validate.test.ts

@@ -65,6 +65,15 @@ describe('validate', () => {
         expect(ctx.stderr).to.equal('');
         done();
       });
+    test
+      .stderr()
+      .stdout()
+      .command(['validate', 'http://localhost:8080/dummySpec.yml --proxyHost=host --proxyPort=8080'])
+      .it('works when url is passed with proxyHost and proxyPort with invalid host ', (ctx, done) => {
+        expect(ctx.stdout).to.contain('');
+        expect(ctx.stderr).to.equal('error loading AsyncAPI document from url: Failed to download http://localhost:8080/dummySpec.yml --proxyHost=host --proxyPort=8080.\n');
+        done();
+      });
 
     test
       .stderr()