65 lines
1.9 KiB
Dart
65 lines
1.9 KiB
Dart
 
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import 'dart:math';
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import 'package:cookit/src/planning/week_fill.dart';
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import 'package:flutter_test/flutter_test.dart';
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import '../support/fixtures.dart';
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void main() {
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final days = [for (var d = 19; d <= 25; d++) DateTime.utc(2026, 10, d)];
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final recipes = [for (var i = 0; i < 5; i++) recipe(id: 'r$i', name: 'R$i')];
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test('fills each empty day with a different Recipe, never one already in the week', () {
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final filled = fillWeek(
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emptyDays: days.take(3).toList(),
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candidates: recipes,
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inWeek: {'r0'},
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recent: const {},
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random: Random(1),
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);
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expect(filled.keys, days.take(3));
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final ids = filled.values.map((r) => r.id).toList();
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expect(ids.toSet(), hasLength(3));
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expect(ids, isNot(contains('r0')));
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});
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test('recently planned Recipes come only after the others', () {
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for (var seed = 0; seed < 20; seed++) {
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final filled = fillWeek(
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emptyDays: days.take(4).toList(),
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candidates: recipes,
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inWeek: const {},
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recent: {'r0', 'r1'},
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random: Random(seed),
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);
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final ids = filled.values.map((r) => r.id).toList();
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expect(ids.take(3).toSet(), {'r2', 'r3', 'r4'});
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expect(ids.last, anyOf('r0', 'r1'));
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}
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});
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test('days stay empty when the Recipes run out', () {
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final filled = fillWeek(
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emptyDays: days,
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candidates: recipes.take(2).toList(),
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inWeek: const {},
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recent: const {},
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random: Random(2),
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);
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expect(filled, hasLength(2));
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});
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test('pickReplacement skips the week and returns null when nothing is left', () {
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final pick = pickReplacement(
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candidates: recipes,
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inWeek: {'r0', 'r1', 'r2', 'r3'},
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recent: const {},
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random: Random(),
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);
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expect(pick?.id, 'r4');
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expect(
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pickReplacement(candidates: recipes, inWeek: {for (final r in recipes) r.id}, recent: const {}, random: Random()),
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isNull,
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);
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});
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}
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