c - master - dashytka/WeatherForecast

113 строк4 KB
dashytka
create c#
26 ноя 2025, 18:57
26 ноя 2025, 18:57ecc5a59
using System;

namespace WeatherForecast
{
    public class TemperatureConverter
    {
        public static double CelsiusToFahrenheit(double celsius)
        {
            var fahrenheit = celsius * 9 / 5 + 32;
            return fahrenheit;
        }

        public static double FahrenheitToCelsius(double fahrenheit)
        {
            var celsius = (fahrenheit - 32) * 5 / 9;
            return celsius;
        }

        public static string GetTemperatureDescription(double celsius)
        {
            return celsius switch
            {
                < -20 => "Extreme Cold",
                < 0 => "Freezing",
                < 10 => "Cold",
                < 20 => "Cool",
                < 25 => "Comfortable",
                < 30 => "Warm",
                < 35 => "Hot",
                _ => "Extreme Heat"
            };
        }
    }

    public class WeatherReport
    {
        public string GenerateDailyReport(string city, double temperatureCelsius, string condition)
        {
            var temperatureFahrenheit = TemperatureConverter.CelsiusToFahrenheit(temperatureCelsius);
            var description = TemperatureConverter.GetTemperatureDescription(temperatureCelsius);
            
            var report = $"""
                WEATHER REPORT FOR {city.ToUpper()}
                Temperature: {temperatureCelsius:0.0}°C ({temperatureFahrenheit:0.0}°F)
                Condition: {condition}
                Description: {description}
                Reported at: {DateTime.Now:yyyy-MM-dd HH:mm}
                """;
                
            return report;
        }
    }

    [TestFixture]
    public class TemperatureConverterTests
    {
        [Test]
        public void CelsiusToFahrenheit_ConvertsCorrectly_WhenGivenValidTemperature()
        {
            var celsius = 25.0;
            var result = TemperatureConverter.CelsiusToFahrenheit(celsius);
            var expected = 77.0;
            Assert.AreEqual(expected, result, 0.1);
        }

        [Test]
        public void FahrenheitToCelsius_ConvertsCorrectly_WhenGivenValidTemperature()
        {
            var fahrenheit = 77.0;
            var result = TemperatureConverter.FahrenheitToCelsius(fahrenheit);
            var expected = 25.0;
            Assert.AreEqual(expected, result, 0.1);
        }

        [Test]
        public void GetTemperatureDescription_ReturnsCorrectDescription_ForVariousTemperatures()
        {
            var coldTemperature = -5.0;
            var coldResult = TemperatureConverter.GetTemperatureDescription(coldTemperature);
            Assert.AreEqual("Freezing", coldResult);

            var comfortableTemperature = 22.0;
            var comfortableResult = TemperatureConverter.GetTemperatureDescription(comfortableTemperature);
            Assert.AreEqual("Comfortable", comfortableResult);
        }
    }

    [TestFixture]
    public class WeatherReportTests
    {
        [Test]
        public void GenerateDailyReport_ContainsAllRequiredInformation_WhenValidDataProvided()
        {
            var weatherReport = new WeatherReport();
            var report = weatherReport.GenerateDailyReport("London", 18.5, "Partly Cloudy");
            
            Assert.IsTrue(report.Contains("LONDON"));
            Assert.IsTrue(report.Contains("18.5°C"));
            Assert.IsTrue(report.Contains("Partly Cloudy"));
            Assert.IsTrue(report.Contains("Comfortable"));
        }

        [Test]
        public void GenerateDailyReport_IncludesFahrenheitConversion_WhenCelsiusTemperatureProvided()
        {
            var weatherReport = new WeatherReport();
            var report = weatherReport.GenerateDailyReport("New York", 0.0, "Snowy");
            
            Assert.IsTrue(report.Contains("0.0°C"));
            Assert.IsTrue(report.Contains("32.0°F"));
        }
    }
}