API test using Postman (JSON Schema, Status code, Data value, Header, Response time)

pmtest.js

//GET: https://reqres.in/api/users?page=2
var schema = {
  "properties": {
    "page": {
      "type": "integer"
    },
    "per_page": {
      "type": "integer",
      "enum": [
        1,
        2,
        3,
        4
      ]
    },
    "total": {
      "type": "integer"
    },
    "total_pages": {
      "type": "integer"
    },
    "data": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "id": {
            "type": "integer"
          },
          "email": {
            "type": "string",
            "pattern": "^([a-zA-Z0-9._-]+?@[a-zA-Z0-9]+?.[a-zA-Z]+?)$"
          },
          "first_name": {
            "type": [
              "string",
              "null"
            ]
          },
          "last_name": {
            "type": [
              "string",
              "null"
            ]
          },
          "avatar": {
            "type": [
              "string",
              "null"
            ],
            "pattern": "^((//|https?://).+|)$"
          }
        },
        "additionalProperties": false,
        "required": [
          "id",
          "email",
          "first_name",
          "last_name",
          "avatar"
        ]
      }
    }
  },
  "additionalProperties": false,
  "required": [
    "page",
    "per_page",
    "total",
    "total_pages",
    "data"
  ]
};


pm.test('Schema is valid', function() {
  pm.expect(tv4.validate(pm.response.json(), schema)).to.be.true;
});

pm.test("Status code is 200", function () {
    pm.response.to.have.status(200);
});

pm.test("Total page is right", function () {
    var jsonData = pm.response.json();
    pm.expect(jsonData.total_pages).to.eql(4);
});

pm.test("Content-Type is present", function () {
    pm.response.to.have.header("Content-Type");
});

pm.test("Response time is less than 200ms", function () {
    pm.expect(pm.response.responseTime).to.be.below(200);
});

//Response example:
/*
{
    "page": 2,
    "per_page": 3,
    "total": 12,
    "total_pages": 4,
    "data": [
        {
            "id": 4,
            "email": "[email protected]",
            "first_name": "Eve",
            "last_name": "Holt",
            "avatar": "https://s3.amazonaws.com/uifaces/faces/twitter/marcoramires/128.jpg"
        },
        {
            "id": 5,
            "email": "[email protected]",
            "first_name": "Charles",
            "last_name": "Morris",
            "avatar": "https://s3.amazonaws.com/uifaces/faces/twitter/stephenmoon/128.jpg"
        },
        {
            "id": 6,
            "email": "[email protected]",
            "first_name": "Tracey",
            "last_name": "Ramos",
            "avatar": "https://s3.amazonaws.com/uifaces/faces/twitter/bigmancho/128.jpg"
        }
    ]
}
*/