scandit-sdk/src/lib/browserHelper.spec.ts

Scandit Barcode Scanner SDK for the Web

/* tslint:disable:no-implicit-dependencies no-any */
/**
 * BrowserHelper tests
 */

import test from "ava";
import { BrowserHelper } from "..";

Object.defineProperty(navigator, "platform", {
  value: "iPhone"
});

// tslint:disable-next-line:max-func-body-length
test("checkBrowserCompatibility", t => {
  Object.defineProperty(window, "Blob", {
    value: null
  });

  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: false,
    missingFeatures: ["mediaDevices", "webWorkers", "webAssembly", "blob", "urlObject", "offscreenCanvas", "webgl"],
    scannerSupport: false
  });
  Object.defineProperty(navigator, "mediaDevices", {
    value: {
      getUserMedia: () => {
        return;
      }
    },
    configurable: true
  });
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: false,
    missingFeatures: ["webWorkers", "webAssembly", "blob", "urlObject", "offscreenCanvas", "webgl"],
    scannerSupport: false
  });
  window.Worker = () => {
    return;
  };
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: false,
    missingFeatures: ["webAssembly", "blob", "urlObject", "offscreenCanvas", "webgl"],
    scannerSupport: false
  });
  window.WebAssembly = {};
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: false,
    missingFeatures: ["blob", "urlObject", "offscreenCanvas", "webgl"],
    scannerSupport: false
  });
  window.Blob = <Window["Blob"]>(<unknown>(() => {
    return;
  }));
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: false,
    missingFeatures: ["urlObject", "offscreenCanvas", "webgl"],
    scannerSupport: false
  });
  window.URL = <Window["URL"]>(<unknown>{
    createObjectURL: () => {
      return;
    }
  });
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: true,
    missingFeatures: ["offscreenCanvas", "webgl"],
    scannerSupport: true
  });
  window.OffscreenCanvas = () => {
    return;
  };
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: true,
    missingFeatures: ["webgl"],
    scannerSupport: true
  });
  window.WebGLRenderingContext = () => {
    return;
  };
  Object.defineProperty(BrowserHelper, "canvas", {
    value: {
      getContext: () => {
        return null;
      }
    }
  });
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: true,
    missingFeatures: ["webgl"],
    scannerSupport: true
  });
  Object.defineProperty(BrowserHelper, "canvas", {
    value: {
      getContext: () => {
        return true;
      }
    }
  });
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: true,
    missingFeatures: [],
    scannerSupport: true
  });
  BrowserHelper.userAgentInfo.setUA(
    "Mozilla/5.0 (iPhone; CPU iPhone OS 11_2_5 like Mac OS X) " +
      "AppleWebKit/604.5.6 (KHTML, like Gecko) Version/11.0 Mobile/15D60 Safari/604.1"
  );
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: false,
    missingFeatures: ["webAssemblyErrorFree"],
    scannerSupport: false
  });
  BrowserHelper.userAgentInfo.setUA(
    "Mozilla/5.0 (iPhone; CPU iPhone OS 11_3 like Mac OS X) " +
      "AppleWebKit/605.1.15 (KHTML, like Gecko) Version/11.0 Mobile/15E148 Safari/604.1"
  );
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: true,
    missingFeatures: [],
    scannerSupport: true
  });
  Object.defineProperty(navigator, "mediaDevices", {
    value: undefined,
    configurable: true
  });
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: false,
    missingFeatures: ["mediaDevices"],
    scannerSupport: true
  });
  navigator.enumerateDevices = () => {
    return Promise.resolve([]);
  };
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: true,
    missingFeatures: [],
    scannerSupport: true
  });
  navigator.enumerateDevices = undefined;
  window.MediaStreamTrack = {
    getSources: () => {
      return;
    }
  };
  t.deepEqual(BrowserHelper.checkBrowserCompatibility(), {
    fullSupport: true,
    missingFeatures: [],
    scannerSupport: true
  });
});

test("getDeviceId", t => {
  const currentDeviceId: string = BrowserHelper.getDeviceId();
  t.regex(currentDeviceId, /[0-9a-f]{40}/);
  t.deepEqual(BrowserHelper.getDeviceId(), currentDeviceId);
  document.cookie = "scandit-device-id=";
  t.notDeepEqual(BrowserHelper.getDeviceId(), currentDeviceId);
});