GardenPlanner/test/logic/plant.service_test.dart

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:garden_planner/constance.dart';
import 'package:garden_planner/entities/plant.dart';
import 'package:garden_planner/logic/plant.service.dart';

import '../helpers/plant_generator.dart';

void main() {
  test('PlantService isActionNeeded should work', () {
    // Arrange
    final PlantService plantService = PlantService();
    final Plant plant = PlantGenerator.getPlant();

    // Act
    var actionShouldBeTrue =
        plantService.isActionNeeded(plant, DateTime(2023, 05, 01));
    var actionShouldBeFalseBecauseNoEntry =
        plantService.isActionNeeded(plant, DateTime(2023, 07, 01));
    var actionShouldBeFalse =
        plantService.isActionNeeded(plant, DateTime(2023, 10, 01));

    // Assert
    expect(actionShouldBeTrue, equals(true),
        reason: 'PlantService isActionNeeded ist between but returns false');
    expect(actionShouldBeFalse, equals(false),
        reason: 'PlantService isActionNeeded ist outside set but returns true');
    expect(actionShouldBeFalseBecauseNoEntry, equals(false),
        reason: 'PlantService isActionNeeded ist not set but returns true');
  });

  test('PlantService  getTimeDescription should work', () {
    // Arrange
    final PlantService plantService = PlantService();
    final Plant plant = PlantGenerator.getPlant();

    // Act
    var descritpionJanuar =
        plantService.getTimeDescription(plant, DateTime(2023, 01, 01));
    var descritpionApril =
        plantService.getTimeDescription(plant, DateTime(2023, 04, 02));
    var descritpionMai =
        plantService.getTimeDescription(plant, DateTime(2023, 05, 20));
    var descritpionJuni =
        plantService.getTimeDescription(plant, DateTime(2023, 06, 20));

    // Assert
    expect(descritpionJanuar, equals(Constance.defaultDescription),
        reason: 'Description is not equal');
    expect(descritpionMai, equals('Wachstumsphase'),
        reason: 'Description is not equal');
    expect(descritpionApril, equals('Aussaat'),
        reason: 'Description is not equal');
    expect(descritpionJuni, equals('Erntezeit'),
        reason: 'Description is not equal');
  });

  test('PlantService  getTimeDescription extremValues should work', () {
    // Arrange
    final PlantService plantService = PlantService();
    final Plant plant = PlantGenerator.getPlant();
    // Act
    var descritpionBevorWachstum =
        plantService.getTimeDescription(plant, DateTime(2023, 05, 15));
    var descritpionWachstumstart =
        plantService.getTimeDescription(plant, DateTime(2023, 05, 16));
    var descritpionWachstumEnd =
        plantService.getTimeDescription(plant, DateTime(2023, 06, 15));
    var descritpionAfterWachstum =
        plantService.getTimeDescription(plant, DateTime(2023, 06, 16));

    // Assert
    expect(descritpionBevorWachstum, isNot(equals('Wachstumsphase')),
        reason: 'Description returns wrong value bevor');
    expect(descritpionWachstumstart, equals('Wachstumsphase'),
        reason: 'Description returns wrong value start');
    expect(descritpionWachstumEnd, equals('Wachstumsphase'),
        reason: 'Description returns wrong value end');
    expect(descritpionAfterWachstum, isNot(equals('Wachstumsphase')),
        reason: 'Description returns wrong value after');
  });

  test('PlantService getColor should work', () {
    // Arrange
    final PlantService plantService = PlantService();
    final Plant plant = PlantGenerator.getPlant();

    // Act
    var descritpionJanuar =
        plantService.getColor(plant, DateTime(2023, 01, 01));
    var descritpionApril = plantService.getColor(plant, DateTime(2023, 04, 02));
    var descritpionMai = plantService.getColor(plant, DateTime(2023, 05, 20));
    var descritpionJuni = plantService.getColor(plant, DateTime(2023, 06, 20));

    // Assert
    expect(descritpionJanuar, equals(Constance.defaultColor),
        reason: 'Color is not equal');
    expect(descritpionMai, equals(Colors.purple),
        reason: 'Description is not equal');
    expect(descritpionApril, equals(Colors.yellow),
        reason: 'Description is not equal');
    expect(descritpionJuni, equals(Colors.red),
        reason: 'Description is not equal');
  });
}