CSVMetricsLogger/Tests/Tests.cs

using System.Diagnostics.CodeAnalysis;
using CSV_Metrics_Logger;

namespace Tests;

[ExcludeFromCodeCoverage]
public sealed class Tests
{
    [Test]
    public void TestBasicImplementation()
    {
        var testData = new TestDataRecordStructMixed("Area1", 1, 1.1f, 7);
        Assert.Multiple(() =>
        {
            Assert.That(typeof(TestDataRecordStructMixed).GetInterface("IConvertToCSV"), Is.Not.Null);
            Assert.That(typeof(TestDataRecordStructMixed).GetProperties(), Has.Length.EqualTo(5));

            var numberColumns = testData.GetCSVColumnCount();
            Assert.That(numberColumns, Is.EqualTo(5));
            
            var header = testData.GetCSVHeaders();
            Assert.That(header, Is.EquivalentTo(new[] { "Area", "Step", "Value", "Z", "State" }));
            
            var dataLine = testData.ConvertToCSVDataLine();
            Assert.That(dataLine, Is.EquivalentTo(new[] { "Area1", "1", "1.1", "7", "False" }));
        });
    }
    
    [Test]
    public void TestLongText()
    {
        var text = """
                   This is a long text that should be split into multiple lines
                   and should be able to be used as a multiline string
                   ...
                   and on and on...
                   """;
        var testData = new TestDataRecordStructMixed(text, 500_000, 0.00057f, -6_087);
        Assert.Multiple(() =>
        {
            var dataLine = testData.ConvertToCSVDataLine();
            Assert.That(dataLine, Is.EquivalentTo(new[] { text, "500000", "0.00057", "-6087", "False" }));
        });
    }

    [Test]
    public void TestOneLineStructure()
    {
        var testData = new TestDataOneLine("Bob", 120);
        Assert.Multiple(() =>
        {
            var numberColumns = testData.GetCSVColumnCount();
            Assert.That(numberColumns, Is.EqualTo(2));
            
            var header = testData.GetCSVHeaders();
            Assert.That(header, Is.EquivalentTo(new[] { "Name", "Age" }));
            
            var dataLine = testData.ConvertToCSVDataLine();
            Assert.That(dataLine, Is.EquivalentTo(new[] { "Bob", "120" }));
        });
    }
    
    [Test]
    public void TestRegularStruct()
    {
        var testData = new TestDataRegularStruct
        {
            City = "New York",
            Age = 35,
            Size = 1.85,
        };
        
        Assert.Multiple(() =>
        {
            var numberColumns = testData.GetCSVColumnCount();
            Assert.That(numberColumns, Is.EqualTo(3));
            
            var header = testData.GetCSVHeaders();
            Assert.That(header, Is.EquivalentTo(new[] { "City", "Age", "Size" }));
            
            var dataLine = testData.ConvertToCSVDataLine();
            Assert.That(dataLine, Is.EquivalentTo(new[] { "New York", "35", "1.85" }));
        });
    }

    [Test]
    public async Task TestWritingCSV()
    {
        List<TestDataOneLine> testData =
        [
            new TestDataOneLine("Name 1", 14),
            new TestDataOneLine("Name 2", 25),
            new TestDataOneLine("Name 3", 36),
            new TestDataOneLine("Name 4", 47),
            new TestDataOneLine("Name 5", 58),
        ];
        
        // Get a random file:
        var fileName = Path.GetTempFileName();
        await using (var storage = CSVStorage<TestDataOneLine>.Create(fileName))
        {
            foreach (var data in testData)
                storage.Write(data);
        }
        
        var lines = await File.ReadAllLinesAsync(fileName);
        Assert.Multiple(() =>
        {
            Assert.That(lines, Has.Length.EqualTo(6));
            Assert.That(lines[0], Is.EqualTo("Name;Age"));
            Assert.That(lines[1], Is.EqualTo("\"Name 1\";14"));
            Assert.That(lines[2], Is.EqualTo("\"Name 2\";25"));
            Assert.That(lines[3], Is.EqualTo("\"Name 3\";36"));
            Assert.That(lines[4], Is.EqualTo("\"Name 4\";47"));
            Assert.That(lines[5], Is.EqualTo("\"Name 5\";58"));
        });
        
        File.Delete(fileName);
    }
}