Вытащил солюшен на уровень выше, чтобы прощё было дотнетить

VisaApiTests/Tests/Application/Validation/VisaApplications/ReentryPermitModelValidatorTests.cs

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+using System.Text;
+using ApplicationLayer.InfrastructureServicesInterfaces;
+using ApplicationLayer.Services.VisaApplications.Models;
+using ApplicationLayer.Services.VisaApplications.Models.Validation;
+using Domains;
+using FluentAssertions;
+using FluentValidation;
+using VisaApi.Fakers.VisaApplications.Requests;
+using VisaApi.Services;
+using Xunit;
+
+namespace VisaApi.Tests.Application.Validation.VisaApplications
+{
+    public class ReentryPermitModelValidatorTests
+    {
+        private readonly static IDateTimeProvider dateTimeProvider = new TestDateTimeProvider();
+        private readonly static IValidator<ReentryPermitModel> validator = new ReentryPermitModelValidator(dateTimeProvider);
+        private readonly static ReentryPermitModelFaker faker = new(dateTimeProvider);
+
+        /// <summary>
+        /// Test for <see cref="ReentryPermitModel"/> validator that should return error for empty expiration date
+        /// </summary>
+        [Fact]
+        private async Task ValidateForEmptyExpirationDateShouldReturnError()
+        {
+            var model = faker.Generate();
+            model.ExpirationDate = new();
+
+            var result = await validator.ValidateAsync(model);
+
+            result.Errors.Where(error => error.PropertyName == nameof(model.ExpirationDate))
+                .Should().HaveCount(2); //expected error + error because of expired
+        }
+
+        /// <summary>
+        /// Test for <see cref="ReentryPermitModel"/> validator that should return error for expiration date less than current date
+        /// </summary>
+        [Fact]
+        private async Task ValidateForExpirationDateLessThanCurrentDateShouldReturnError()
+        {
+            var model = faker.Generate();
+            model.ExpirationDate = dateTimeProvider.Now().AddDays(-1);
+
+            var result = await validator.ValidateAsync(model);
+
+            result.Errors.Where(error => error.PropertyName == nameof(model.ExpirationDate))
+                .Should().HaveCount(1);
+        }
+
+        /// <summary>
+        /// Test for <see cref="ReentryPermitModel"/> validator that should return error for empty number
+        /// </summary>
+        [Fact]
+        private async Task ValidateForEmptyNumberShouldReturnError()
+        {
+            var model = faker.Generate();
+            model.Number = string.Empty;
+
+            var result = await validator.ValidateAsync(model);
+
+            result.Errors.Where(error => error.PropertyName == nameof(model.Number))
+                .Should().HaveCount(1);
+        }
+
+        /// <summary>
+        /// Test for <see cref="ReentryPermitModel"/> validator that should return error for not valid number
+        /// </summary>
+        [Fact]
+        private async Task ValidateForNotValidNumberShouldReturnError()
+        {
+            var model = faker.Generate();
+            model.Number = "}{)(*&*^%#!#!:";
+
+            var result = await validator.ValidateAsync(model);
+
+            result.Errors.Where(error => error.PropertyName == nameof(model.Number))
+                .Should().HaveCount(1);
+        }
+
+        /// <summary>
+        /// Test for <see cref="ReentryPermitModel"/> validator that should return error for too long number
+        /// </summary>
+        [Fact]
+        private async Task ValidateForTooLongNumberShouldReturnError()
+        {
+            var model = faker.Generate();
+            var stringBuilder = new StringBuilder();
+            stringBuilder.Append('g', ConfigurationConstraints.ReentryPermitNumberLength + 1);
+            model.Number = stringBuilder.ToString();
+
+            var result = await validator.ValidateAsync(model);
+
+            result.Errors.Where(error => error.PropertyName == nameof(model.Number))
+                .Should().HaveCount(1);
+        }
+
+        /// <summary>
+        /// Test for <see cref="ReentryPermitModel"/> validator that should return no errors for valid model
+        /// </summary>
+        [Fact]
+        private async Task ValidateForValidShouldReturnNoErrors()
+        {
+            var model = faker.Generate();
+
+            var result = await validator.ValidateAsync(model);
+
+            result.Errors.Should().BeEmpty();
+        }
+    }
+}