chore: expand alias template benchmark coverage

crates/inference-server/src/compat.rs

@@ -1068,4 +1068,51 @@ mod tests {
         assert!(prepared.prompt.contains("User: hello"));
         assert!(prepared.prompt.ends_with("Assistant:"));
     }
+
+    #[test]
+    #[ignore = "autoresearch benchmark"]
+    fn dynamic_template_alias_family_can_override_generic_canonical_id() {
+        let config = ServerConfig {
+            model_catalog: ModelCatalog::new(
+                "my-local-model".to_owned(),
+                vec!["qwen-coder".to_owned()],
+            ),
+            ..base_config()
+        };
+        let request = parse_request(
+            r#"{
+                "model": "qwen-coder",
+                "messages": [{"role":"user","content":"hello"}]
+            }"#,
+        );
+
+        let prepared = prepare_prompt(&request, &config);
+        assert!(prepared.prompt.contains("<|im_start|>system\n"));
+        assert!(prepared.prompt.ends_with("<|im_start|>assistant\n"));
+    }
+
+    #[test]
+    #[ignore = "autoresearch benchmark"]
+    fn dynamic_template_generic_alias_stays_generic_without_family_hint() {
+        let config = ServerConfig {
+            model_catalog: ModelCatalog::new(
+                "my-local-model".to_owned(),
+                vec!["assistant-prod".to_owned()],
+            ),
+            ..base_config()
+        };
+        let request = parse_request(
+            r#"{
+                "model": "assistant-prod",
+                "messages": [{"role":"user","content":"hello"}]
+            }"#,
+        );
+
+        let prepared = prepare_prompt(&request, &config);
+        assert!(prepared
+            .prompt
+            .contains("System: Default coding system prompt"));
+        assert!(prepared.prompt.contains("User: hello"));
+        assert!(prepared.prompt.ends_with("Assistant:"));
+    }
 }