1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
6 * Return the range of intersection between the two lists. Ranges are sets of
7 * CLs, so it's inclusive on both ends.
9 function rangeIntersection(a, b) {
14 // We know they intersect, result is the larger lower bound to the smaller
16 return [Math.max(a[0], b[0]), Math.min(a[1], b[1])];
20 * Finds the intersections between the blamelists.
21 * Input is a object mapping botname => [low, high].
25 * [ low0, high0 ], [ bot1, bot2, bot3 ],
26 * [ low1, high1 ], [ bot4, ... ],
30 function findIntersections(testData) {
31 var keys = Object.keys(testData);
32 var intersections = [];
33 var botName = keys[0];
34 var range = testData[botName];
35 intersections.push([range, [botName]]);
36 for (var i = 1; i < keys.length; ++i) {
38 range = testData[botName];
39 var intersectedSome = false;
40 for (var j = 0; j < intersections.length; ++j) {
41 var intersect = rangeIntersection(intersections[j][0], range);
43 intersections[j][0] = intersect;
44 intersections[j][1].push(botName);
45 intersectedSome = true;
49 if (!intersectedSome) {
50 intersections.push([range, [botName]]);
57 /** Flatten out the list of tests and sort them by the binary/test name. */
58 function flattenAndSortTests(rangesByTest) {
59 var rangesByTestNames = Object.keys(rangesByTest);
61 for (var i = 0; i < rangesByTestNames.length; ++i) {
62 var name = rangesByTestNames[i];
63 flat.push([name, rangesByTest[name]]);
66 flat.sort(function(a, b) {
67 if (a[0] < b[0]) return -1;
68 if (a[0] > b[0]) return 1;
76 * Build the HTML table row for a test failure. |test| is [ name, testData ].
77 * |testData| contains ranges suitable for input to |findIntersections|.
79 function buildTestFailureTableRowHTML(test) {
80 var row = document.createElement('tr');
81 var binaryCell = row.insertCell(-1);
82 var nameParts = test[0].split('-');
83 binaryCell.innerHTML = nameParts[0];
84 binaryCell.className = 'category';
85 var flakinessLink = document.createElement('a');
87 'http://test-results.appspot.com/dashboards/' +
88 'flakiness_dashboard.html#testType=' +
89 nameParts[0] + '&tests=' + nameParts[1];
90 flakinessLink.innerHTML = nameParts[1];
91 row.appendChild(flakinessLink);
93 var intersections = findIntersections(test[1]);
94 for (var j = 0; j < intersections.length; ++j) {
95 var intersection = intersections[j];
96 var range = row.insertCell(-1);
97 range.className = 'failure-range';
98 var low = intersection[0][0];
99 var high = intersection[0][1];
101 'http://build.chromium.org/f/chromium/perf/dashboard/ui/' +
102 'changelog.html?url=%2Ftrunk%2Fsrc&range=' +
103 low + '%3A' + high + '&mode=html';
104 range.innerHTML = '<a href="' + url + '">' + low + ' - ' + high + '</a>: ' +
105 truncateStatusText(intersection[1].join(', '));
111 /** Updates the correlations contents. */
112 function updateCorrelationsHTML() {
113 // The logic here is to try to narrow blamelists by using information across
114 // bots. If a particular test has failed on multiple different
115 // configurations, there's a good chance that it has the same root cause, so
116 // calculate the intersection of blamelists of the first time it failed on
119 var allFailures = [];
120 for (var i = 0; i < gWaterfallData.length; ++i) {
121 var waterfallInfo = gWaterfallData[i];
122 var botInfo = waterfallInfo.botInfo;
123 var allBotNames = Object.keys(botInfo);
124 for (var j = 0; j < allBotNames.length; ++j) {
125 var botName = allBotNames[j];
126 if (botInfo[botName].isSteadyGreen)
128 var builds = botInfo[botName].builds;
129 var buildNames = Object.keys(builds);
130 for (var k = 0; k < buildNames.length; ++k) {
131 var build = builds[buildNames[k]];
132 if (build.failures) {
133 for (var l = 0; l < build.failures.length; ++l) {
134 allFailures.push(build.failures[l]);
141 // allFailures is now a list of lists, each containing:
142 // [ botname, binaryname, testname, [low_rev, high_rev] ].
144 var rangesByTest = {};
145 for (var i = 0; i < allFailures.length; ++i) {
146 var failure = allFailures[i];
147 var botName = failure[0];
148 var binaryName = failure[1];
149 var testName = failure[2];
150 var range = failure[3];
151 if (binaryName.indexOf('steps') != -1)
153 if (testName.indexOf('preamble') != -1)
155 var key = binaryName + '-' + testName;
157 if (!rangesByTest.hasOwnProperty(key))
158 rangesByTest[key] = {};
159 // If there's no range, that's all we know.
160 if (!rangesByTest[key].hasOwnProperty([botName])) {
161 rangesByTest[key][botName] = range;
163 // Otherwise, track only the lowest range for this bot (we only want
164 // when it turned red, not the whole range that it's been red for).
165 if (range[0] < rangesByTest[key][botName][0]) {
166 rangesByTest[key][botName] = range;
171 var table = document.getElementById('failure-info');
172 while (table.rows.length > 0) {
176 var headerCell = document.createElement('td');
177 headerCell.colSpan = 15;
178 headerCell.innerHTML =
179 'test failures (ranges are blamelist intersections of first failure on ' +
180 'each bot of retrieved data. so, if a test has been failing for a ' +
181 'while, the range may be incorrect)';
182 headerCell.className = 'section-header';
183 var headerRow = table.insertRow(-1);
184 headerRow.appendChild(headerCell);
186 var flat = flattenAndSortTests(rangesByTest);
188 for (var i = 0; i < flat.length; ++i) {
189 table.appendChild(buildTestFailureTableRowHTML(flat[i]));