chromium/src/third_party/blink/web_tests/http/tests/devtools/network/json-preview.js

// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

(async function() {
  TestRunner.addResult(`Tests that resources with JSON MIME types are previewed with the JSON viewer.\n`);
  await TestRunner.loadModule('network_test_runner');
  await TestRunner.showPanel('network');

  function createNetworkRequestWithJSONMIMEType(type) {
    TestRunner.addResult('Creating a NetworkRequest with type: ' + type);
    var request = new SDK.NetworkRequest(0, 'http://localhost');
    request.mimeType = type;
    request._contentData = Promise.resolve({error: null, content: '{"number": 42}', encoded: false});
    return request;
  }

  async function testPreviewer(request) {
    var previewView = new Network.RequestPreviewView(request, null);
    previewView.wasShown();
    var previewer = await previewView._contentViewPromise;
    TestRunner.addResult('Its previewer is searchable: ' + (previewer && previewer instanceof UI.SearchableView));
    TestRunner.addResult(
        'Its previewer is the JSON previewer: ' +
        (previewer && previewer._searchProvider && previewer._searchProvider instanceof SourceFrame.JSONView));
  }

  function testType(contentType, callback) {
    var request = createNetworkRequestWithJSONMIMEType(contentType);
    testPreviewer(request).then(callback);
  }
  TestRunner.runTestSuite([
    function test1(next) {
      testType('application/json', next);
    },
    function test2(next) {
      testType('application/vnd.document+json', next);
    },
  ]);
})();