Fix --all flag not showing 401 response for digest auth

AUTHORS.md

@@ -39,3 +39,4 @@
 - [Elena Lape](https://github.com/elenalape)
 - [Rohit Sehgal](https://github.com/r0hi7)
 - [Bartłomiej Jacak](https://github.com/bartekjacak)
+- [POTHIHAI SELVAN S P](https://github.com/po-nuvai)

httpie/client.py

@@ -122,6 +122,13 @@ def collect_messages(
             )
 
             response_count += 1
+
+            # Yield historical responses (e.g., 401 from digest auth) with --all
+            # See: https://github.com/httpie/cli/issues/1603
+            if args.all and response.history:
+                for historical_response in response.history:
+                    yield historical_response
+
             if response.next:
                 if args.max_redirects and response_count == args.max_redirects:
                     raise requests.TooManyRedirects

tests/test_auth.py

@@ -153,3 +153,24 @@ def test_ignore_netrc_null_auth():
         env=MockEnvironment(),
     )
     assert isinstance(args.auth, ExplicitNullAuth)
+
+
+def test_digest_auth_with_all_shows_401(httpbin_both):
+    """
+    Test that --all flag shows the intermediate 401 response
+    when using digest authentication.
+
+    See: https://github.com/httpie/cli/issues/1603
+    """
+    r = http(
+        '--all',
+        '--auth-type=digest',
+        '--auth=user:password',
+        'GET',
+        httpbin_both.url + '/digest-auth/auth/user/password'
+    )
+    # Should contain both the 401 and the 200 responses
+    assert '401 UNAUTHORIZED' in r or '401 Unauthorized' in r
+    assert HTTP_OK in r
+    # Verify the authenticated response body is present
+    assert '"authenticated": true' in r