fix: avoid rendering empty response schemas (#9667)

Refs #9666
Co-authored-by: Pierre Paysant-Le Roux <ppaysant@gmail.com>

src/core/components/model-example.jsx

@@ -19,7 +19,7 @@ export default class ModelExample extends React.Component {
 
   constructor(props, context) {
     super(props, context)
-    let { getConfigs, isExecute } = this.props
+    let { getConfigs, isExecute, schema } = this.props
     let { defaultModelRendering } = getConfigs()
 
     let activeTab = defaultModelRendering
@@ -28,6 +28,10 @@ export default class ModelExample extends React.Component {
       activeTab = "example"
     }
 
+    if (!schema) {
+      activeTab = "example"
+    }
+
     if(isExecute) {
       activeTab = "example"
     }

test/e2e-cypress/e2e/features/default-model-rendering.cy.js

@@ -0,0 +1,39 @@
+/**
+ * @prettier
+ */
+
+describe("defaultModelRendering set to model", () => {
+  it("should not render schemas for responses with no defined schemas", () => {
+    cy.visit(
+      "/?defaultModelRendering=model&url=/documents/features/default-model-rendering.yaml"
+    )
+      .get("#operations-default-get_")
+      .click()
+      .get(
+        "#operations-default-get_ [data-code=200] .response-col_description__inner"
+      )
+      .contains("no content")
+      .get("#operations-default-get_ [data-code=200] .model-example")
+      .should("not.exist")
+      .get(
+        "#operations-default-get_ [data-code=201] .response-col_description__inner"
+      )
+      .contains("no schema but an example")
+      .get("#operations-default-get_ [data-code=201] .model-example")
+      .contains('"foo": "bar"')
+      .should("exist")
+      .get(
+        "#operations-default-get_ [data-code=202] .response-col_description__inner"
+      )
+      .contains("no schema but examples")
+      .get("#operations-default-get_ [data-code=202] .model-example")
+      .contains('"foo": "bar"')
+      .should("exist")
+      .get(
+        "#operations-default-get_ [data-code=203] .response-col_description__inner"
+      )
+      .contains("no schema no example")
+      .get("#operations-default-get_ [data-code=203] .model-example")
+      .should("not.exist")
+  })
+})

test/e2e-cypress/static/documents/features/default-model-rendering.yaml

@@ -0,0 +1,31 @@
+openapi: 3.1.0
+info:
+  title: Empty response test case
+  version: '1'
+paths:
+  '/':
+    get:
+      responses:
+        '200':
+          description: no content
+        '201':
+          description: no schema but an example
+          content:
+            application/json:
+              example:
+                foo: bar
+        '202':
+          description: no schema but examples
+          content:
+            application/json:
+              examples:
+                first:
+                  value:
+                    foo: bar
+                second:
+                  value:
+                    baz: foobar
+        '203':
+          description: no schema no example
+          content:
+            application/json: {}