theme_data_test.dart 6.35 KB
Newer Older
1 2 3 4 5 6 7 8
// Copyright 2016 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.

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
9
  test('Theme data control test', () {
10
    final ThemeData dark = new ThemeData.dark();
11 12 13 14 15

    expect(dark, hasOneLineDescription);
    expect(dark, equals(dark.copyWith()));
    expect(dark.hashCode, equals(dark.copyWith().hashCode));

16 17
    final ThemeData light = new ThemeData.light();
    final ThemeData dawn = ThemeData.lerp(dark, light, 0.25);
18 19 20 21 22

    expect(dawn.brightness, Brightness.dark);
    expect(dawn.primaryColor, Color.lerp(dark.primaryColor, light.primaryColor, 0.25));
  });

23 24
  test('Defaults to the default typography for the platform', () {
    for (TargetPlatform platform in TargetPlatform.values) {
25 26
      final ThemeData theme = new ThemeData(platform: platform);
      final Typography typography = new Typography(platform: platform);
27 28
      expect(theme.textTheme, typography.black.apply(decoration: TextDecoration.none),
          reason: 'Not using default typography for $platform');
29 30
    }
  });
31 32

  test('Default text theme contrasts with brightness', () {
33 34 35
    final ThemeData lightTheme = new ThemeData(brightness: Brightness.light);
    final ThemeData darkTheme = new ThemeData(brightness: Brightness.dark);
    final Typography typography = new Typography(platform: lightTheme.platform);
36 37 38 39 40 41

    expect(lightTheme.textTheme.title.color, typography.black.title.color);
    expect(darkTheme.textTheme.title.color, typography.white.title.color);
  });

  test('Default primary text theme contrasts with primary brightness', () {
42 43 44
    final ThemeData lightTheme = new ThemeData(primaryColorBrightness: Brightness.light);
    final ThemeData darkTheme = new ThemeData(primaryColorBrightness: Brightness.dark);
    final Typography typography = new Typography(platform: lightTheme.platform);
45 46 47 48 49 50

    expect(lightTheme.primaryTextTheme.title.color, typography.black.title.color);
    expect(darkTheme.primaryTextTheme.title.color, typography.white.title.color);
  });

  test('Default accent text theme contrasts with accent brightness', () {
51 52 53
    final ThemeData lightTheme = new ThemeData(accentColorBrightness: Brightness.light);
    final ThemeData darkTheme = new ThemeData(accentColorBrightness: Brightness.dark);
    final Typography typography = new Typography(platform: lightTheme.platform);
54 55 56 57 58 59

    expect(lightTheme.accentTextTheme.title.color, typography.black.title.color);
    expect(darkTheme.accentTextTheme.title.color, typography.white.title.color);
  });

  test('Default icon theme contrasts with brightness', () {
60 61 62
    final ThemeData lightTheme = new ThemeData(brightness: Brightness.light);
    final ThemeData darkTheme = new ThemeData(brightness: Brightness.dark);
    final Typography typography = new Typography(platform: lightTheme.platform);
63 64 65 66 67 68

    expect(lightTheme.textTheme.title.color, typography.black.title.color);
    expect(darkTheme.textTheme.title.color, typography.white.title.color);
  });

  test('Default primary icon theme contrasts with primary brightness', () {
69 70 71
    final ThemeData lightTheme = new ThemeData(primaryColorBrightness: Brightness.light);
    final ThemeData darkTheme = new ThemeData(primaryColorBrightness: Brightness.dark);
    final Typography typography = new Typography(platform: lightTheme.platform);
72 73 74 75 76 77

    expect(lightTheme.primaryTextTheme.title.color, typography.black.title.color);
    expect(darkTheme.primaryTextTheme.title.color, typography.white.title.color);
  });

  test('Default accent icon theme contrasts with accent brightness', () {
78 79 80
    final ThemeData lightTheme = new ThemeData(accentColorBrightness: Brightness.light);
    final ThemeData darkTheme = new ThemeData(accentColorBrightness: Brightness.dark);
    final Typography typography = new Typography(platform: lightTheme.platform);
81 82 83 84

    expect(lightTheme.accentTextTheme.title.color, typography.black.title.color);
    expect(darkTheme.accentTextTheme.title.color, typography.white.title.color);
  });
85 86 87 88 89 90 91 92

  test('Can control fontFamily', () {
    final ThemeData themeData = new ThemeData(fontFamily: 'Ahem');

    expect(themeData.textTheme.body2.fontFamily, equals('Ahem'));
    expect(themeData.primaryTextTheme.title.fontFamily, equals('Ahem'));
    expect(themeData.accentTextTheme.display4.fontFamily, equals('Ahem'));
  });
93

94 95 96 97 98 99 100 101 102 103 104 105 106 107
  test('Can estimate brightness - directly', () {
    expect(ThemeData.estimateBrightnessForColor(Colors.white), equals(Brightness.light));
    expect(ThemeData.estimateBrightnessForColor(Colors.black), equals(Brightness.dark));
    expect(ThemeData.estimateBrightnessForColor(Colors.blue), equals(Brightness.dark));
    expect(ThemeData.estimateBrightnessForColor(Colors.yellow), equals(Brightness.light));
    expect(ThemeData.estimateBrightnessForColor(Colors.deepOrange), equals(Brightness.dark));
    expect(ThemeData.estimateBrightnessForColor(Colors.orange), equals(Brightness.light));
    expect(ThemeData.estimateBrightnessForColor(Colors.lime), equals(Brightness.light));
    expect(ThemeData.estimateBrightnessForColor(Colors.grey), equals(Brightness.light));
    expect(ThemeData.estimateBrightnessForColor(Colors.teal), equals(Brightness.dark));
    expect(ThemeData.estimateBrightnessForColor(Colors.indigo), equals(Brightness.dark));
  });

  test('Can estimate brightness - indirectly', () {
108 109 110 111 112 113 114 115 116 117 118
    expect(new ThemeData(primaryColor: Colors.white).primaryColorBrightness, equals(Brightness.light));
    expect(new ThemeData(primaryColor: Colors.black).primaryColorBrightness, equals(Brightness.dark));
    expect(new ThemeData(primaryColor: Colors.blue).primaryColorBrightness, equals(Brightness.dark));
    expect(new ThemeData(primaryColor: Colors.yellow).primaryColorBrightness, equals(Brightness.light));
    expect(new ThemeData(primaryColor: Colors.deepOrange).primaryColorBrightness, equals(Brightness.dark));
    expect(new ThemeData(primaryColor: Colors.orange).primaryColorBrightness, equals(Brightness.light));
    expect(new ThemeData(primaryColor: Colors.lime).primaryColorBrightness, equals(Brightness.light));
    expect(new ThemeData(primaryColor: Colors.grey).primaryColorBrightness, equals(Brightness.light));
    expect(new ThemeData(primaryColor: Colors.teal).primaryColorBrightness, equals(Brightness.dark));
    expect(new ThemeData(primaryColor: Colors.indigo).primaryColorBrightness, equals(Brightness.dark));
  });
119
}