text: import os
  import shutil
  
  from fastapi.testclient import TestClient
  
  from docs_src.additional_responses.tutorial002 import app
  
  client = TestClient(app)
  
  openapi_schema = {
      "openapi": "3.0.2",
      "info": {"title": "FastAPI", "version": "0.1.0"},
      "paths": {
          "/items/{item_id}": {
              "get": {
                  "responses": {
                      "200": {
                          "description": "Return the JSON item or an image.",
                          "content": {
                              "image/png": {},
                              "application/json": {
                                  "schema": {"$ref": "#/components/schemas/Item"}
                              },
                          },
                      },
                      "422": {
                          "description": "Validation Error",
                          "content": {
                              "application/json": {
                                  "schema": {
                                      "$ref": "#/components/schemas/HTTPValidationError"
                                  }
                              }
                          },
                      },
                  },
                  "summary": "Read Item",
                  "operationId": "read_item_items__item_id__get",
                  "parameters": [
                      {
                          "required": True,
                          "schema": {"title": "Item Id", "type": "string"},
                          "name": "item_id",
                          "in": "path",
                      },
                      {
                          "required": False,
                          "schema": {"title": "Img", "type": "boolean"},
                          "name": "img",
                          "in": "query",
                      },
                  ],
              }
          }
      },
      "components": {
          "schemas": {
              "Item": {
                  "title": "Item",
                  "required": ["id", "value"],
                  "type": "object",
                  "properties": {
                      "id": {"title": "Id", "type": "string"},
                      "value": {"title": "Value", "type": "string"},
                  },
              },
              "ValidationError": {
                  "title": "ValidationError",
                  "required": ["loc", "msg", "type"],
                  "type": "object",
                  "properties": {
                      "loc": {
                          "title": "Location",
                          "type": "array",
                          "items": {"type": "string"},
                      },
                      "msg": {"title": "Message", "type": "string"},
                      "type": {"title": "Error Type", "type": "string"},
                  },
              },
              "HTTPValidationError": {
                  "title": "HTTPValidationError",
                  "type": "object",
                  "properties": {
                      "detail": {
                          "title": "Detail",
                          "type": "array",
                          "items": {"$ref": "#/components/schemas/ValidationError"},
                      }
                  },
              },
          }
      },
  }
  
  
  def test_openapi_schema():
      response = client.get("/openapi.json")
      assert response.status_code == 200, response.text
      assert response.json() == openapi_schema
  
  
  def test_path_operation():
      response = client.get("/items/foo")
      assert response.status_code == 200, response.text
      assert response.json() == {"id": "foo", "value": "there goes my hero"}
  
  
  def test_path_operation_img():
      shutil.copy("./docs/en/docs/img/favicon.png", "./image.png")
      response = client.get("/items/foo?img=1")
      assert response.status_code == 200, response.text
      assert response.headers["Content-Type"] == "image/png"
      assert len(response.content)
      os.remove("./image.png")
  