shoc-backend/SeaHaven.Services.Tests/ValidationTests.cs

using FluentAssertions;
using SeaHaven.Services.DTOs;
using SeaHaven.Services.Validation;
using Xunit;

namespace SeaHaven.Services.Tests;

public class CreateAssetValidationTests
{
    private readonly CreateAssetValidation _validator = new();

    [Fact]
    public void Validate_WhenNameEmpty_Fails()
    {
        var result = _validator.Validate(new CreateAssetDTO { Name = "" });

        result.IsValid.Should().BeFalse();
        result.Errors.Should().Contain(e => e.PropertyName == nameof(CreateAssetDTO.Name));
    }

    [Fact]
    public void Validate_WhenNameTooLong_Fails()
    {
        var result = _validator.Validate(new CreateAssetDTO { Name = new string('a', 201) });

        result.IsValid.Should().BeFalse();
        result.Errors.Should().Contain(e => e.PropertyName == nameof(CreateAssetDTO.Name));
    }

    [Fact]
    public void Validate_WhenLocationIdZero_Fails()
    {
        var result = _validator.Validate(new CreateAssetDTO { Name = "Pump", LocationId = 0 });

        result.IsValid.Should().BeFalse();
        result.Errors.Should().Contain(e => e.PropertyName == nameof(CreateAssetDTO.LocationId));
    }

    [Fact]
    public void Validate_WhenValid_Passes()
    {
        var result = _validator.Validate(new CreateAssetDTO { Name = "Pump", LocationId = 5 });

        result.IsValid.Should().BeTrue();
    }
}

public class CreateContactValidationTests
{
    private readonly CreateContactValidation _validator = new();

    private static CreateContactDTO Valid() => new()
    {
        FirstName = "Ada",
        LastName = "Lovelace",
        Email = "ada@example.com"
    };

    [Fact]
    public void Validate_WhenNamesMissing_Fails()
    {
        var dto = Valid();
        dto.FirstName = "";
        dto.LastName = "";

        var result = _validator.Validate(dto);

        result.IsValid.Should().BeFalse();
        result.Errors.Should().Contain(e => e.PropertyName == nameof(CreateContactDTO.FirstName));
        result.Errors.Should().Contain(e => e.PropertyName == nameof(CreateContactDTO.LastName));
    }

    [Fact]
    public void Validate_WhenEmailMalformed_Fails()
    {
        var dto = Valid();
        dto.Email = "not-an-email";

        var result = _validator.Validate(dto);

        result.IsValid.Should().BeFalse();
        result.Errors.Should().Contain(e => e.PropertyName == nameof(CreateContactDTO.Email));
    }

    [Fact]
    public void Validate_WhenPhoneTooLong_Fails()
    {
        var dto = Valid();
        dto.Phone = new string('1', 21);

        var result = _validator.Validate(dto);

        result.IsValid.Should().BeFalse();
        result.Errors.Should().Contain(e => e.PropertyName == nameof(CreateContactDTO.Phone));
    }

    [Fact]
    public void Validate_WhenValid_Passes()
    {
        var result = _validator.Validate(Valid());

        result.IsValid.Should().BeTrue();
    }
}