1 files changed, 207 insertions, 0 deletions
diff --git a/devtools/client/animationinspector/test/unit/test_timeScale.js b/devtools/client/animationinspector/test/unit/test_timeScale.js
new file mode 100644
index 000000000..9ee4b8a59
--- /dev/null
+++ b/devtools/client/animationinspector/test/unit/test_timeScale.js
@@ -0,0 +1,207 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+var Cu = Components.utils;
+const {require} = Cu.import("resource://devtools/shared/Loader.jsm", {});
+const {TimeScale} = require("devtools/client/animationinspector/utils");
+const TEST_ANIMATIONS = [{
+  desc: "Testing a few standard animations",
+  animations: [{
+    previousStartTime: 500,
+    delay: 0,
+    duration: 1000,
+    iterationCount: 1,
+    playbackRate: 1
+  }, {
+    previousStartTime: 400,
+    delay: 100,
+    duration: 10,
+    iterationCount: 100,
+    playbackRate: 1
+  }, {
+    previousStartTime: 50,
+    delay: 1000,
+    duration: 100,
+    iterationCount: 20,
+    playbackRate: 1
+  }],
+  expectedMinStart: 50,
+  expectedMaxEnd: 3050
+}, {
+  desc: "Testing a single negative-delay animation",
+  animations: [{
+    previousStartTime: 100,
+    delay: -100,
+    duration: 100,
+    iterationCount: 1,
+    playbackRate: 1
+  }],
+  expectedMinStart: 0,
+  expectedMaxEnd: 100
+}, {
+  desc: "Testing a single negative-delay animation with a different rate",
+  animations: [{
+    previousStartTime: 3500,
+    delay: -1000,
+    duration: 10000,
+    iterationCount: 2,
+    playbackRate: 2
+  }],
+  expectedMinStart: 3000,
+  expectedMaxEnd: 13000
+}];
+
+const TEST_STARTTIME_TO_DISTANCE = [{
+  time: 50,
+  expectedDistance: 0
+}, {
+  time: 50,
+  expectedDistance: 0
+}, {
+  time: 3050,
+  expectedDistance: 100
+}, {
+  time: 1550,
+  expectedDistance: 50
+}];
+
+const TEST_DURATION_TO_DISTANCE = [{
+  time: 3000,
+  expectedDistance: 100
+}, {
+  time: 0,
+  expectedDistance: 0
+}];
+
+const TEST_DISTANCE_TO_TIME = [{
+  distance: 100,
+  expectedTime: 3050
+}, {
+  distance: 0,
+  expectedTime: 50
+}, {
+  distance: 25,
+  expectedTime: 800
+}];
+
+const TEST_DISTANCE_TO_RELATIVE_TIME = [{
+  distance: 100,
+  expectedTime: 3000
+}, {
+  distance: 0,
+  expectedTime: 0
+}, {
+  distance: 25,
+  expectedTime: 750
+}];
+
+const TEST_FORMAT_TIME_MS = [{
+  time: 0,
+  expectedFormattedTime: "0ms"
+}, {
+  time: 3540.341,
+  expectedFormattedTime: "3540ms"
+}, {
+  time: 1.99,
+  expectedFormattedTime: "2ms"
+}, {
+  time: 4000,
+  expectedFormattedTime: "4000ms"
+}];
+
+const TEST_FORMAT_TIME_S = [{
+  time: 0,
+  expectedFormattedTime: "0.0s"
+}, {
+  time: 3540.341,
+  expectedFormattedTime: "3.5s"
+}, {
+  time: 1.99,
+  expectedFormattedTime: "0.0s"
+}, {
+  time: 4000,
+  expectedFormattedTime: "4.0s"
+}, {
+  time: 102540,
+  expectedFormattedTime: "102.5s"
+}, {
+  time: 102940,
+  expectedFormattedTime: "102.9s"
+}];
+
+function run_test() {
+  do_print("Check the default min/max range values");
+  equal(TimeScale.minStartTime, Infinity);
+  equal(TimeScale.maxEndTime, 0);
+
+  for (let {desc, animations, expectedMinStart, expectedMaxEnd} of
+       TEST_ANIMATIONS) {
+    do_print("Test adding a few animations: " + desc);
+    for (let state of animations) {
+      TimeScale.addAnimation(state);
+    }
+
+    do_print("Checking the time scale range");
+    equal(TimeScale.minStartTime, expectedMinStart);
+    equal(TimeScale.maxEndTime, expectedMaxEnd);
+
+    do_print("Test reseting the animations");
+    TimeScale.reset();
+    equal(TimeScale.minStartTime, Infinity);
+    equal(TimeScale.maxEndTime, 0);
+  }
+
+  do_print("Add a set of animations again");
+  for (let state of TEST_ANIMATIONS[0].animations) {
+    TimeScale.addAnimation(state);
+  }
+
+  do_print("Test converting start times to distances");
+  for (let {time, expectedDistance} of TEST_STARTTIME_TO_DISTANCE) {
+    let distance = TimeScale.startTimeToDistance(time);
+    equal(distance, expectedDistance);
+  }
+
+  do_print("Test converting durations to distances");
+  for (let {time, expectedDistance} of TEST_DURATION_TO_DISTANCE) {
+    let distance = TimeScale.durationToDistance(time);
+    equal(distance, expectedDistance);
+  }
+
+  do_print("Test converting distances to times");
+  for (let {distance, expectedTime} of TEST_DISTANCE_TO_TIME) {
+    let time = TimeScale.distanceToTime(distance);
+    equal(time, expectedTime);
+  }
+
+  do_print("Test converting distances to relative times");
+  for (let {distance, expectedTime} of TEST_DISTANCE_TO_RELATIVE_TIME) {
+    let time = TimeScale.distanceToRelativeTime(distance);
+    equal(time, expectedTime);
+  }
+
+  do_print("Test formatting times (millis)");
+  for (let {time, expectedFormattedTime} of TEST_FORMAT_TIME_MS) {
+    let formattedTime = TimeScale.formatTime(time);
+    equal(formattedTime, expectedFormattedTime);
+  }
+
+  // Add 1 more animation to increase the range and test more time formatting
+  // cases.
+  TimeScale.addAnimation({
+    startTime: 3000,
+    duration: 5000,
+    delay: 0,
+    iterationCount: 1
+  });
+
+  do_print("Test formatting times (seconds)");
+  for (let {time, expectedFormattedTime} of TEST_FORMAT_TIME_S) {
+    let formattedTime = TimeScale.formatTime(time);
+    equal(formattedTime, expectedFormattedTime);
+  }
+}