Request Body examples should respect media-type (#6739)

* fix: request body.jsx should rely on the getSampleSchema utility

* test: add test to ensure xml request body

test/e2e-cypress/static/documents/bugs/6475.yaml

@@ -0,0 +1,57 @@
+openapi: 3.0.1
+info:
+ title: Example Swagger
+ version: '1.0'
+servers:
+ - url: /api/v1
+paths:
+ /xmlTest/examples:
+   post:
+     summary: sample issues
+     operationId: xmlTest_examples
+     parameters: []
+     requestBody:
+       description: Simple Test xml examples
+       content:
+           application/xml:
+              schema:
+               $ref: "#/components/schemas/Test"
+              examples:
+                test:
+                  value:
+                    x: should be xml
+     responses:
+       '200':
+         description:  Simple Test xml examples
+         content: {}
+ /xmlTest/example:
+   post:
+     summary: sample issues
+     operationId: xmlTest_example
+     parameters: []
+     requestBody:
+       description: Simple Test xml example
+       content:
+           application/xml:
+              schema:
+               $ref: "#/components/schemas/Test"
+              example:
+                x: should be xml
+     responses:
+       '200':
+         description: Simple Test xml example
+         content: {}
+components:
+  schemas:
+    Test:
+      type: object
+      xml:
+        name: root
+      properties:
+        x:
+          type: string
+        other:
+          type: string
+          format: email
+      example:
+        x: what the f

test/e2e-cypress/tests/bugs/6475.js

@@ -0,0 +1,65 @@
+describe("#6475: 'Examples' keyword definitions can not be rendered as xml", () => {
+  it("should render requestBody examples preview accourdingly to content-type xml", () => {
+    const xmlIndicator = "<x>should be xml</x>"
+
+    cy
+      .visit("?url=/documents/bugs/6475.yaml")
+      .get("#operations-default-xmlTest_examples")
+      .click()
+      .get(".opblock-section-request-body")
+      .within(() => {
+        cy
+          .get(".microlight")
+          .should("include.text", xmlIndicator)
+      })
+  })
+  it("should requestBody examples input accourdingly to content-type xml", () => {
+    const xmlIndicator = "<x>should be xml</x>"
+
+    cy
+      .visit("?url=/documents/bugs/6475.yaml")
+      .get("#operations-default-xmlTest_examples")
+      .click()
+      .get(".btn.try-out__btn")
+      .click()
+      .get(".opblock-section-request-body")
+      .within(() => {
+        cy
+          .get("textarea")
+          .contains(xmlIndicator)
+      })
+  })
+})
+
+describe("#6475: 'Example' keyword definitions can not be rendered as xml", () => {
+  it("should render requestBody examples preview accourdingly to content-type xml", () => {
+    const xmlIndicator = "<x>should be xml</x>"
+
+    cy
+      .visit("?url=/documents/bugs/6475.yaml")
+      .get("#operations-default-xmlTest_example")
+      .click()
+      .get(".opblock-section-request-body")
+      .within(() => {
+        cy
+          .get(".microlight")
+          .should("include.text", xmlIndicator)
+      })
+  })
+  it("should requestBody examples input accourdingly to content-type xml", () => {
+    const xmlIndicator = "<x>should be xml</x>"
+
+    cy
+      .visit("?url=/documents/bugs/6475.yaml")
+      .get("#operations-default-xmlTest_example")
+      .click()
+      .get(".btn.try-out__btn")
+      .click()
+      .get(".opblock-section-request-body")
+      .within(() => {
+        cy
+          .get("textarea")
+          .contains(xmlIndicator)
+      })
+  })
+})