fix: omit empty filter in http list object request (#13434)

Author: krishnamd-jkp

storage/http_client.go

@@ -365,7 +365,11 @@ func (c *httpStorageClient) ListObjects(ctx context.Context, bucket string, q *Q
 		req.IncludeTrailingDelimiter(it.query.IncludeTrailingDelimiter)
 		req.MatchGlob(it.query.MatchGlob)
 		req.IncludeFoldersAsPrefixes(it.query.IncludeFoldersAsPrefixes)
-		req.Filter(it.query.Filter)
+
+		// Cannot pass empty filter
+		if it.query.Filter != "" {
+			req.Filter(it.query.Filter)
+		}
 
 		if selection := it.query.toFieldSelection(); selection != "" {
 			req.Fields("nextPageToken", googleapi.Field(selection))

storage/integration_test.go

@@ -7306,6 +7306,13 @@ func TestIntegration_ObjectGetListCustomContexts(t *testing.T) {
 				},
 				expectedNames: []string{object1Name},
 			},
+			{
+				name: "NoFilter",
+				query: &Query{
+					Prefix: prefix,
+				},
+				expectedNames: []string{object1Name, object2Name, object3Name},
+			},
 		}
 
 		for _, tc := range filterTests {