dev/tools/test/update_icons_test.dart

// Copyright 2014 The Flutter 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:test/test.dart';

import '../update_icons.dart';

Map<String, String> codepointsA = <String, String>{'airplane': '111', 'boat': '222'};
Map<String, String> codepointsB = <String, String>{'airplane': '333'};
Map<String, String> codepointsC = <String, String>{'airplane': '111', 'train': '444'};
Map<String, String> codepointsUnderscore = <String, String>{'airplane__123': '111'};

void main() {
  group('safety checks', () {
    test('superset', () {
      expect(testIsSuperset(codepointsA, codepointsA), true);

      expect(testIsSuperset(codepointsA, codepointsB), true);
      expect(testIsSuperset(codepointsB, codepointsA), false);
    });
    test('stability', () {
      expect(testIsStable(codepointsA, codepointsA), true);

      expect(testIsStable(codepointsA, codepointsB), false);
      expect(testIsStable(codepointsB, codepointsA), false);

      expect(testIsStable(codepointsA, codepointsC), true);
      expect(testIsStable(codepointsC, codepointsA), true);
    });
  });

  test('no double underscores', () {
    expect(Icon(codepointsUnderscore.entries.first).usage, 'Icon(Icons.airplane_123),');
  });

  test('usage string is correct', () {
    expect(Icon(const MapEntry<String, String>('abc', '')).usage, 'Icon(Icons.abc),');
  });

  test('usage string is correct with replacement', () {
    expect(Icon(const MapEntry<String, String>('123', '')).usage, 'Icon(Icons.onetwothree),');
    expect(
      Icon(const MapEntry<String, String>('123_rounded', '')).usage,
      'Icon(Icons.onetwothree_rounded),',
    );
  });

  test('certain icons should be mirrored in RTL', () {
    // Exact match
    expect(Icon(const MapEntry<String, String>('help', '')).isMirroredInRTL, true);
    // Variant
    expect(Icon(const MapEntry<String, String>('help_rounded', '')).isMirroredInRTL, true);
    // Common suffixes
    expect(Icon(const MapEntry<String, String>('help_alt', '')).isMirroredInRTL, true);
    expect(Icon(const MapEntry<String, String>('help_new', '')).isMirroredInRTL, true);
    expect(Icon(const MapEntry<String, String>('help_off', '')).isMirroredInRTL, true);
    expect(Icon(const MapEntry<String, String>('help_on', '')).isMirroredInRTL, true);
    // Common suffixes + variant
    expect(Icon(const MapEntry<String, String>('help_alt_rounded', '')).isMirroredInRTL, true);
    expect(Icon(const MapEntry<String, String>('help_new_rounded', '')).isMirroredInRTL, true);
    expect(Icon(const MapEntry<String, String>('help_off_rounded', '')).isMirroredInRTL, true);
    expect(Icon(const MapEntry<String, String>('help_on_rounded', '')).isMirroredInRTL, true);
    // No match
    expect(Icon(const MapEntry<String, String>('help_center_rounded', '')).isMirroredInRTL, false);
    // No match
    expect(Icon(const MapEntry<String, String>('arrow', '')).isMirroredInRTL, false);
    // Exact match
    expect(Icon(const MapEntry<String, String>('prompt_suggestion', '')).isMirroredInRTL, true);
  });
}