node-img-placeholder/tests/api.test.js

run a local image placeholder service

var server = require("../lib/server");
var config = require("../lib/config/config");
var request = require("supertest");
var expect = require("chai").expect;

var app;

describe("Test", function() {
  var url;

  before(function(done) {
    app = server.start();
    url = "http://localhost:" + config.port + "/" + config.namespace + "/";
    done();
  });

  after(function(done) {
    app.close();
    done();
  });

  describe("image types", function() {
    it("should return an PNG image", function(done) {
      request(url)
        .get("200x133.png")
        .expect("Content-Type", /image\/png/)
        .expect(200, done);
    });

    it("should return an jpg image", function(done) {
      request(url)
        .get("200x133.jpg?delay=100&txt=test")
        .expect("Content-Type", /image\/jpg/)
        .expect(200, done);
    });
  });

  describe("Cache-Control", function() {
    it("should have no cache", function(done) {
      request(url)
        .get("200x133.png?maxAge=1337")
        .expect("Content-Type", /image\/png/)
        .expect("Cache-Control", /public, max-age=1337/)
        .expect(200, done);
    });
  });

  describe("Expires", function() {
    it("should have optional expiry date", function(done) {
      var date = new Date(Date.parse(2088, 8, 3, 10, 0, 0, 0)).toUTCString();
      var uriDate = date;
      request(url)
        .get("200x133.png?expiryDate=" + uriDate)
        .expect("Content-Type", /image\/png/)
        .expect("Expires", date)
        .expect(200, done);
    });
  });
});