Roll Observatory packages and add a roll script

packages/charted/test.disabled/time/time_test.dart

+/*
+ * Copyright 2014 Google Inc. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file or at
+ * https://developers.google.com/open-source/licenses/bsd
+ */
+
+library charted.test.time;
+
+import 'package:charted/time/time.dart';
+import 'package:unittest/unittest.dart';
+
+timeTests() {
+  List granularity = [
+    ['second', Time.second],
+    ['minute', Time.minute],
+    ['hour',   Time.hour],
+    ['day',    Time.day],
+    ['week',   Time.week],
+    ['month',  Time.month],
+    ['year',   Time.year],
+  ];
+
+  DateTime date = new DateTime(2014, 7, 21, 0, 32, 30, 345);
+  List mockDate = [
+    /* Second */
+    [new DateTime(2014, 7, 21, 0, 32, 30),         // floor
+     new DateTime(2014, 7, 21, 0, 32, 31),         // ceil
+     new DateTime(2014, 7, 21, 0, 32, 30),         // round
+     new DateTime(2014, 7, 21, 0, 32, 31, 345)     // offset 1
+    ],
+    /* Minute */
+    [new DateTime(2014, 7, 21, 0, 32),             // floor
+     new DateTime(2014, 7, 21, 0, 33),             // ceil
+     new DateTime(2014, 7, 21, 0, 33),             // round
+     new DateTime(2014, 7, 21, 0, 33, 30, 345)     // offset 1
+    ],
+    /* Hour */
+    [new DateTime(2014, 7, 21, 0),                 // floor
+     new DateTime(2014, 7, 21, 1),                 // ceil
+     new DateTime(2014, 7, 21, 1),                 // round
+     new DateTime(2014, 7, 21, 1, 32, 30, 345)     // offset 1
+    ],
+    /* Day */
+    [new DateTime(2014, 7, 21),                    // floor
+     new DateTime(2014, 7, 22),                    // ceil
+     new DateTime(2014, 7, 21),                    // round
+     new DateTime(2014, 7, 22, 0, 32, 30, 345)     // offset 1
+    ],
+    /* Week */
+    [new DateTime(2014, 7, 21),                    // floor
+     new DateTime(2014, 7, 28),                    // ceil
+     new DateTime(2014, 7, 21),                    // round
+     new DateTime(2014, 7, 28, 0, 32, 30, 345)     // offset 1
+    ],
+    /* Month */
+    [new DateTime(2014, 7),                        // floor
+     new DateTime(2014, 8),                        // ceil
+     new DateTime(2014, 8),                        // round
+     new DateTime(2014, 8, 21, 0, 32, 30, 345)     // offset 1
+    ],
+    /* Year */
+    [new DateTime(2014),                           // floor
+     new DateTime(2015),                           // ceil
+     new DateTime(2015),                           // round
+     new DateTime(2015, 7, 21, 0, 32, 30, 345)     // offset 1
+    ],
+  ];
+
+  for (var i = 0; i < granularity.length; i++) {
+    test('Time.${granularity[i][0]} returns a [TimeInterval] '
+         'with ${granularity[i][0]} granularity', () {
+      expect(granularity[i][1].floor(date)
+          .compareTo(mockDate[i][0]), equals(0));
+      expect(granularity[i][1].ceil(date)
+          .compareTo(mockDate[i][1]), equals(0));
+      expect(granularity[i][1].round(date)
+          .compareTo(mockDate[i][2]), equals(0));
+      expect(granularity[i][1].offset(date, 1)
+          .compareTo(mockDate[i][3]), equals(0));
+    });
+  }
+
+  test('Time.second.range returns a list of [DateTime] nicely stepped', () {
+    List range = Time.second.range(
+        new DateTime(2014, 1, 1, 0, 0, 0, 123),
+        new DateTime(2014, 1, 1, 0, 0, 20), 5);
+    expect(range.length, equals(3));
+    expect(range[0].compareTo(new DateTime(2014, 1, 1, 0, 0, 5)), equals(0));
+    expect(range[1].compareTo(new DateTime(2014, 1, 1, 0, 0, 10)), equals(0));
+    expect(range[2].compareTo(new DateTime(2014, 1, 1, 0, 0, 15)), equals(0));
+  });
+
+  test('Time.minute.range returns a list of [DateTime] nicely stepped', () {
+    List range = Time.minute.range(
+        new DateTime(2014, 1, 1, 0, 4, 10),
+        new DateTime(2014, 1, 1, 0, 10, 20), 2);
+    expect(range.length, equals(3));
+    expect(range[0].compareTo(new DateTime(2014, 1, 1, 0, 6)), equals(0));
+    expect(range[1].compareTo(new DateTime(2014, 1, 1, 0, 8)), equals(0));
+    expect(range[2].compareTo(new DateTime(2014, 1, 1, 0, 10)), equals(0));
+  });
+
+  test('Time.hour.range returns a list of [DateTime] nicely stepped', () {
+    List range = Time.hour.range(
+        new DateTime(2014, 1, 1, 20, 15),
+        new DateTime(2014, 1, 2, 2, 10, 20), 2);
+    expect(range.length, equals(3));
+    expect(range[0].compareTo(new DateTime(2014, 1, 1, 22)), equals(0));
+    expect(range[1].compareTo(new DateTime(2014, 1, 2, 0)), equals(0));
+    expect(range[2].compareTo(new DateTime(2014, 1, 2, 2)), equals(0));
+  });
+
+  test('Time.day.range returns a list of [DateTime] nicely stepped', () {
+    List range = Time.day.range(
+        new DateTime(2014, 1, 20, 10),
+        new DateTime(2014, 1, 29, 15), 3);
+    expect(range.length, equals(3));
+    expect(range[0].compareTo(new DateTime(2014, 1, 22)), equals(0));
+    expect(range[1].compareTo(new DateTime(2014, 1, 25)), equals(0));
+    expect(range[2].compareTo(new DateTime(2014, 1, 28)), equals(0));
+  });
+
+  test('Time.week.range returns a list of [DateTime] nicely stepped', () {
+    List range = Time.week.range(
+        new DateTime(2013, 12, 31, 10),
+        new DateTime(2014, 1, 29, 15), 1);
+    expect(range.length, equals(4));
+    expect(range[0].compareTo(new DateTime(2014, 1, 4)), equals(0));
+    expect(range[1].compareTo(new DateTime(2014, 1, 11)), equals(0));
+    expect(range[2].compareTo(new DateTime(2014, 1, 18)), equals(0));
+    expect(range[3].compareTo(new DateTime(2014, 1, 25)), equals(0));
+  });
+
+  test('Time.month.range returns a list of [DateTime] nicely stepped', () {
+    List range = Time.month.range(
+        new DateTime(2013, 12, 31, 10),
+        new DateTime(2014, 5, 29, 15), 2);
+    expect(range.length, equals(3));
+    expect(range[0].compareTo(new DateTime(2014, 1, 1)), equals(0));
+    expect(range[1].compareTo(new DateTime(2014, 3, 1)), equals(0));
+    expect(range[2].compareTo(new DateTime(2014, 5, 1)), equals(0));
+  });
+
+  test('Time.year.range returns a list of [DateTime] nicely stepped', () {
+    List range = Time.year.range(
+        new DateTime(2013, 12, 31, 10),
+        new DateTime(2018, 5, 29, 15), 2);
+    expect(range.length, equals(3));
+    expect(range[0].compareTo(new DateTime(2014, 1, 1)), equals(0));
+    expect(range[1].compareTo(new DateTime(2016, 1, 1)), equals(0));
+    expect(range[2].compareTo(new DateTime(2018, 1, 1)), equals(0));
+  });
+}