[Extensions] Allow shared resources between tests via _test_resources

chrome/test/data/extensions/api_test/webnavigation/srcdoc/framework.js

-// Copyright 2013 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.
-
-var deepEq = chrome.test.checkDeepEq;
-var expectedEventData;
-var expectedEventOrder;
-var capturedEventData;
-var nextFrameId;
-var frameIds;
-var nextTabId;
-var tabIds;
-var nextProcessId;
-var processIds;
-var initialized = false;
-
-var debug = false;
-
-function deepCopy(obj) {
-  if (obj === null)
-    return null;
-  if (typeof(obj) != 'object')
-    return obj;
-  if (Array.isArray(obj)) {
-    var tmp_array = new Array;
-    for (var i = 0; i < obj.length; i++) {
-      tmp_array.push(deepCopy(obj[i]));
-    }
-    return tmp_array;
-  }
-
-  var tmp_object = {}
-  for (var p in obj) {
-    tmp_object[p] = deepCopy(obj[p]);
-  }
-  return tmp_object;
-}
-
-// data: array of expected events, each one is a dictionary:
-//     { label: "<unique identifier>",
-//       event: "<webnavigation event type>",
-//       details: { <expected details of the event> }
-//     }
-// order: an array of sequences, e.g. [ ["a", "b", "c"], ["d", "e"] ] means that
-//     event with label "a" needs to occur before event with label "b". The
-//     relative order of "a" and "d" does not matter.
-function expect(data, order) {
-  expectedEventData = data;
-  capturedEventData = [];
-  expectedEventOrder = order;
-  nextFrameId = 1;
-  frameIds = {};
-  nextTabId = 0;
-  tabIds = {};
-  nextProcessId = -1;
-  processIds = {}
-  initListeners();
-}
-
-function checkExpectations() {
-  if (capturedEventData.length < expectedEventData.length) {
-    return;
-  }
-  if (capturedEventData.length > expectedEventData.length) {
-    chrome.test.fail("Recorded too many events. " +
-        JSON.stringify(capturedEventData));
-  }
-  // We have ensured that capturedEventData contains exactly the same elements
-  // as expectedEventData. Now we need to verify the ordering.
-  // Step 1: build positions such that
-  //     position[<event-label>]=<position of this event in capturedEventData>
-  var curPos = 0;
-  var positions = {};
-  capturedEventData.forEach(function (event) {
-    chrome.test.assertTrue(event.hasOwnProperty("label"));
-    positions[event.label] = curPos;
-    curPos++;
-  });
-  // Step 2: check that elements arrived in correct order
-  expectedEventOrder.forEach(function (order) {
-    var previousLabel = undefined;
-    order.forEach(function (label) {
-      if (previousLabel === undefined) {
-        previousLabel = label;
-        return;
-      }
-      chrome.test.assertTrue(positions[previousLabel] < positions[label],
-          "Event " + previousLabel + " is supposed to arrive before " +
-          label + ".");
-      previousLabel = label;
-    });
-  });
-  chrome.test.succeed();
-}
-
-function captureEvent(name, details) {
-  if ('url' in details) {
-    // Skip about:blank navigations
-    if (details.url == 'about:blank') {
-      return;
-    }
-    // Strip query parameter as it is hard to predict.
-    details.url = details.url.replace(new RegExp('\\?[^#]*'), '');
-  }
-  // normalize details.
-  if ('timeStamp' in details) {
-    details.timeStamp = 0;
-  }
-  if (('frameId' in details) && (details.frameId != 0)) {
-    if (frameIds[details.frameId] === undefined) {
-      frameIds[details.frameId] = nextFrameId++;
-    }
-    details.frameId = frameIds[details.frameId];
-  }
-  if (('parentFrameId' in details) && (details.parentFrameId > 0)) {
-    if (frameIds[details.parentFrameId] === undefined) {
-      frameIds[details.parentFrameId] = nextFrameId++;
-    }
-    details.parentFrameId = frameIds[details.parentFrameId];
-  }
-  if (('sourceFrameId' in details) && (details.sourceFrameId != 0)) {
-    if (frameIds[details.sourceFrameId] === undefined) {
-      frameIds[details.sourceFrameId] = nextFrameId++;
-    }
-    details.sourceFrameId = frameIds[details.sourceFrameId];
-  }
-  if ('tabId' in details) {
-    if (tabIds[details.tabId] === undefined) {
-      tabIds[details.tabId] = nextTabId++;
-    }
-    details.tabId = tabIds[details.tabId];
-  }
-  if ('sourceTabId' in details) {
-    if (tabIds[details.sourceTabId] === undefined) {
-      tabIds[details.sourceTabId] = nextTabId++;
-    }
-    details.sourceTabId = tabIds[details.sourceTabId];
-  }
-  if ('replacedTabId' in details) {
-    if (tabIds[details.replacedTabId] === undefined) {
-      tabIds[details.replacedTabId] = nextTabId++;
-    }
-    details.replacedTabId = tabIds[details.replacedTabId];
-  }
-  if ('processId' in details) {
-    if (processIds[details.processId] === undefined) {
-      processIds[details.processId] = nextProcessId++;
-    }
-    details.processId = processIds[details.processId];
-  }
-  if ('sourceProcessId' in details) {
-    if (processIds[details.sourceProcessId] === undefined) {
-      processIds[details.sourceProcessId] = nextProcessId++;
-    }
-    details.sourceProcessId = processIds[details.sourceProcessId];
-  }
-
-  if (debug)
-    console.log("Received event '" + name + "':" + JSON.stringify(details));
-
-  // find |details| in expectedEventData
-  var found = false;
-  var label = undefined;
-  expectedEventData.forEach(function (exp) {
-    if (exp.event == name) {
-      var exp_details;
-      var alt_details;
-      if ('transitionQualifiers' in exp.details) {
-        var idx = exp.details['transitionQualifiers'].indexOf(
-            'maybe_client_redirect');
-        if (idx >= 0) {
-          exp_details = deepCopy(exp.details);
-          exp_details['transitionQualifiers'].splice(idx, 1);
-          alt_details = deepCopy(exp_details);
-          alt_details['transitionQualifiers'].push('client_redirect');
-        } else {
-          exp_details = exp.details;
-          alt_details = exp.details;
-        }
-      } else {
-        exp_details = exp.details;
-        alt_details = exp.details;
-      }
-      if (deepEq(exp_details, details) || deepEq(alt_details, details)) {
-        if (!found) {
-          found = true;
-          label = exp.label;
-          exp.event = undefined;
-        }
-      }
-    }
-  });
-  if (!found) {
-    chrome.test.fail("Received unexpected event '" + name + "':" +
-        JSON.stringify(details));
-  }
-  capturedEventData.push({label: label, event: name, details: details});
-  checkExpectations();
-}
-
-function initListeners() {
-  if (initialized)
-    return;
-  initialized = true;
-  chrome.webNavigation.onBeforeNavigate.addListener(
-      function(details) {
-    captureEvent("onBeforeNavigate", details);
-  });
-  chrome.webNavigation.onCommitted.addListener(
-      function(details) {
-    captureEvent("onCommitted", details);
-  });
-  chrome.webNavigation.onDOMContentLoaded.addListener(
-      function(details) {
-    captureEvent("onDOMContentLoaded", details);
-  });
-  chrome.webNavigation.onCompleted.addListener(
-      function(details) {
-    captureEvent("onCompleted", details);
-  });
-  chrome.webNavigation.onCreatedNavigationTarget.addListener(
-      function(details) {
-    captureEvent("onCreatedNavigationTarget", details);
-  });
-  chrome.webNavigation.onReferenceFragmentUpdated.addListener(
-      function(details) {
-    captureEvent("onReferenceFragmentUpdated", details);
-  });
-  chrome.webNavigation.onErrorOccurred.addListener(
-      function(details) {
-    captureEvent("onErrorOccurred", details);
-  });
-  chrome.webNavigation.onTabReplaced.addListener(
-      function(details) {
-    captureEvent("onTabReplaced", details);
-  });
-  chrome.webNavigation.onHistoryStateUpdated.addListener(
-      function(details) {
-    captureEvent("onHistoryStateUpdated", details);
-  });
-}
-
-// Returns the usual order of navigation events.
-function navigationOrder(prefix) {
-  return [ prefix + "onBeforeNavigate",
-           prefix + "onCommitted",
-           prefix + "onDOMContentLoaded",
-           prefix + "onCompleted" ];
-}
-
-// Returns the constraints expressing that a frame is an iframe of another
-// frame.
-function isIFrameOf(iframe, main_frame) {
-  return [ main_frame + "onCommitted",
-           iframe + "onBeforeNavigate",
-           iframe + "onCompleted",
-           main_frame + "onCompleted" ];
-}
-
-// Returns the constraint expressing that a frame was loaded by another.
-function isLoadedBy(target, source) {
-  return [ source + "onDOMContentLoaded", target + "onBeforeNavigate"];
-}