[spector] Add test case for special words about model property name

.chronus/changes/spector-new-case-2025-10-18-7-0-48.md

@@ -0,0 +1,7 @@
+---
+changeKind: feature
+packages:
+  - "@typespec/http-specs"
+---
+
+Add test case for special words about model property name

packages/http-specs/spec-summary.md

@@ -3392,6 +3392,29 @@ Expected header parameters:
 
 Check we recognize Repeatability-Request-ID and Repeatability-First-Sent.
 
+### SpecialWords_ModelProperties_dictMethods
+
+- Endpoint: `get /special-words/model-properties/dict-methods`
+
+Verify that model properties can use names that are Python dict methods. These names (keys, items, values, etc.) may conflict with Python's dict class methods.
+
+Send
+
+```json
+{
+  "keys": "ok",
+  "items": "ok",
+  "values": "ok",
+  "popitem": "ok",
+  "clear": "ok",
+  "update": "ok",
+  "setdefault": "ok",
+  "pop": "ok",
+  "get": "ok",
+  "copy": "ok"
+}
+```
+
 ### SpecialWords_ModelProperties_sameAsModel
 
 - Endpoint: `get /special-words/model-properties/same-as-model`

packages/http-specs/specs/special-words/main.tsp

@@ -231,4 +231,42 @@ namespace ModelProperties {
     """)
   @route("same-as-model")
   op sameAsModel(@body body: SameAsModel): void;
+
+  // Python dict method names that could conflict
+  model DictMethods {
+    keys: string;
+    items: string;
+    values: string;
+    popitem: string;
+    clear: string;
+    update: string;
+    setdefault: string;
+    pop: string;
+    get: string;
+    copy: string;
+  }
+
+  @scenario
+  @scenarioDoc("""
+    Verify that model properties can use names that are Python dict methods. These names (keys, items, values, etc.) may conflict with Python's dict class methods.
+    
+    Send
+    
+    ```json
+    {
+      "keys": "ok",
+      "items": "ok",
+      "values": "ok",
+      "popitem": "ok",
+      "clear": "ok",
+      "update": "ok",
+      "setdefault": "ok",
+      "pop": "ok",
+      "get": "ok",
+      "copy": "ok"
+    }
+    ```
+    """)
+  @route("dict-methods")
+  op dictMethods(@body body: DictMethods): void;
 }

packages/http-specs/specs/special-words/mockapi.ts

@@ -16,6 +16,29 @@ Scenarios.SpecialWords_ModelProperties_sameAsModel = passOnSuccess({
   kind: "MockApiDefinition",
 });
 
+Scenarios.SpecialWords_ModelProperties_dictMethods = passOnSuccess({
+  uri: "/special-words/model-properties/dict-methods",
+  method: "post",
+  request: {
+    body: json({
+      keys: "ok",
+      items: "ok",
+      values: "ok",
+      popitem: "ok",
+      clear: "ok",
+      update: "ok",
+      setdefault: "ok",
+      pop: "ok",
+      get: "ok",
+      copy: "ok",
+    }),
+  },
+  response: {
+    status: 204,
+  },
+  kind: "MockApiDefinition",
+});
+
 function createModelsTests(uri: string) {
   return passOnSuccess({
     uri,