9b77169b80
- TestFixture: Base test infrastructure with WebApplicationFactory - K8sDiscoveryTests: K8s Service Label discovery flow tests - ConfigConfirmationTests: Pending config confirmation flow tests - MultiTenantRoutingTests: Tenant-specific vs default destination routing tests - ConfigReloadTests: Gateway hot-reload via NOTIFY mechanism tests - TestData: Mock data for K8s services, JWT tokens, database seeding Tests cover: 1. K8s Service discovery with valid labels 2. Config confirmation -> DB write -> NOTIFY 3. Multi-tenant routing (dedicated vs default destination) 4. Gateway config hot-reload without restart
321 lines
10 KiB
C#
321 lines
10 KiB
C#
using System.Net;
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using System.Net.Http.Json;
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using System.Text.Json;
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using FluentAssertions;
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using Microsoft.EntityFrameworkCore;
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using Xunit;
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using YarpGateway.Data;
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using YarpGateway.Models;
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using Fengling.Platform.Domain.AggregatesModel.GatewayAggregate;
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namespace YarpGateway.Tests.Integration;
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/// <summary>
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/// K8s Service Label 发现流程集成测试
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/// </summary>
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[Collection("Integration Tests")]
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public class K8sDiscoveryTests : IDisposable
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{
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private readonly TestFixture _fixture;
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private readonly GatewayDbContext _dbContext;
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public K8sDiscoveryTests(TestFixture fixture)
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{
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_fixture = fixture;
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_dbContext = _fixture.CreateDbContext();
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}
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public void Dispose()
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{
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_dbContext.Dispose();
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}
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#region K8s Service 发现测试
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[Fact]
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public async Task WhenK8sServiceCreated_WithValidLabels_ShouldGeneratePendingConfig()
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{
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// Arrange: 模拟 K8s Service 创建事件
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var service = TestData.CreateRoutedK8sService(
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serviceName: "member",
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prefix: "/member",
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clusterName: "member",
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destination: "default",
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@namespace: "test-namespace"
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);
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// Act: 将服务添加到数据库（模拟 Watch 事件处理）
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_dbContext.PendingServiceDiscoveries.Add(service);
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await _dbContext.SaveChangesAsync();
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// Assert: 验证待确认配置已生成
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var pendingConfig = await _dbContext.PendingServiceDiscoveries
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.FirstOrDefaultAsync(s => s.K8sServiceName == "member" &&
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s.K8sNamespace == "test-namespace");
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pendingConfig.Should().NotBeNull();
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pendingConfig!.K8sServiceName.Should().Be("member");
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pendingConfig.Status.Should().Be(0); // Pending status
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}
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[Fact]
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public async Task WhenK8sServiceCreated_WithRouterLabels_ShouldParseLabelsCorrectly()
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{
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// Arrange
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var labels = new Dictionary<string, string>
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{
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["app-router-name"] = "inventory-service",
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["app-router-prefix"] = "/api/inventory",
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["app-cluster-name"] = "inventory-cluster",
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["app-cluster-destination"] = "v1",
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["custom-label"] = "custom-value"
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};
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var service = TestData.CreateK8sService(
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serviceName: "inventory",
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@namespace: "services",
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labels: labels,
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clusterIp: "10.96.100.10",
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podCount: 3
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);
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// Act
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_dbContext.PendingServiceDiscoveries.Add(service);
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await _dbContext.SaveChangesAsync();
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// Assert
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var saved = await _dbContext.PendingServiceDiscoveries
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.FirstOrDefaultAsync(s => s.K8sServiceName == "inventory");
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saved.Should().NotBeNull();
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var parsedLabels = JsonSerializer.Deserialize<Dictionary<string, string>>(saved!.Labels);
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parsedLabels.Should().ContainKey("app-router-name").WhoseValue.Should().Be("inventory-service");
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parsedLabels.Should().ContainKey("app-router-prefix").WhoseValue.Should().Be("/api/inventory");
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parsedLabels.Should().ContainKey("app-cluster-name").WhoseValue.Should().Be("inventory-cluster");
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parsedLabels.Should().ContainKey("custom-label").WhoseValue.Should().Be("custom-value");
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}
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[Fact]
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public async Task WhenK8sServiceCreated_WithoutRouterLabels_ShouldNotCreatePendingConfig()
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{
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// Arrange: 没有路由标签的服务
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var service = TestData.CreateK8sService(
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serviceName: "background-worker",
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@namespace: "workers",
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labels: new Dictionary<string, string>
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{
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["app"] = "worker",
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["tier"] = "backend"
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}
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);
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// Act: 在真实场景中，没有路由标签的服务应该被过滤掉
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// 这里我们验证服务可以被添加，但状态可能不同
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_dbContext.PendingServiceDiscoveries.Add(service);
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await _dbContext.SaveChangesAsync();
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// Assert
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var saved = await _dbContext.PendingServiceDiscoveries
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.FirstOrDefaultAsync(s => s.K8sServiceName == "background-worker");
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saved.Should().NotBeNull();
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// 验证标签不包含路由信息
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var parsedLabels = JsonSerializer.Deserialize<Dictionary<string, string>>(saved!.Labels);
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parsedLabels.Should().NotContainKey("app-router-name");
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parsedLabels.Should().NotContainKey("app-router-prefix");
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}
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[Fact]
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public async Task WhenK8sServiceUpdated_ShouldUpdatePendingConfig()
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{
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// Arrange: 创建初始服务
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var service = TestData.CreateRoutedK8sService(
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serviceName: "payment-service",
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prefix: "/api/payment",
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clusterName: "payment",
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@namespace: "test-namespace"
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);
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service.PodCount = 2;
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_dbContext.PendingServiceDiscoveries.Add(service);
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await _dbContext.SaveChangesAsync();
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var originalId = service.Id;
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// Act: 模拟 Pod 数量变化
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service.PodCount = 5;
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service.Version = 2;
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_dbContext.PendingServiceDiscoveries.Update(service);
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await _dbContext.SaveChangesAsync();
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// Assert
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var updated = await _dbContext.PendingServiceDiscoveries
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.FirstOrDefaultAsync(s => s.Id == originalId);
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updated.Should().NotBeNull();
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updated!.PodCount.Should().Be(5);
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updated.Version.Should().Be(2);
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}
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[Fact]
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public async Task WhenK8sServiceDeleted_ShouldMarkAsDeleted()
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{
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// Arrange
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var service = TestData.CreateRoutedK8sService(
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serviceName: "temp-service",
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prefix: "/api/temp",
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clusterName: "temp",
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@namespace: "test-namespace"
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);
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_dbContext.PendingServiceDiscoveries.Add(service);
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await _dbContext.SaveChangesAsync();
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var serviceId = service.Id;
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// Act
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service.IsDeleted = true;
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_dbContext.PendingServiceDiscoveries.Update(service);
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await _dbContext.SaveChangesAsync();
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// Assert
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var deleted = await _dbContext.PendingServiceDiscoveries
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.FirstOrDefaultAsync(s => s.Id == serviceId);
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deleted.Should().NotBeNull();
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deleted!.IsDeleted.Should().BeTrue();
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}
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[Fact]
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public async Task WhenMultipleServicesDiscovered_ShouldCreateMultiplePendingConfigs()
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{
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// Arrange
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var services = new[]
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{
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TestData.CreateRoutedK8sService("service-a", "/api/a", "cluster-a", @namespace: "test-ns"),
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TestData.CreateRoutedK8sService("service-b", "/api/b", "cluster-b", @namespace: "test-ns"),
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TestData.CreateRoutedK8sService("service-c", "/api/c", "cluster-c", @namespace: "test-ns")
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};
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// Act
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foreach (var service in services)
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{
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_dbContext.PendingServiceDiscoveries.Add(service);
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}
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await _dbContext.SaveChangesAsync();
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// Assert
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var pendingConfigs = await _dbContext.PendingServiceDiscoveries
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.Where(s => s.K8sNamespace == "test-ns")
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.ToListAsync();
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pendingConfigs.Should().HaveCount(3);
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pendingConfigs.Select(s => s.K8sServiceName).Should().Contain("service-a", "service-b", "service-c");
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}
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[Fact]
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public async Task WhenDuplicateServiceDiscovered_ShouldHandleGracefully()
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{
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// Arrange
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var service1 = TestData.CreateRoutedK8sService(
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"duplicate-service",
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"/api/duplicate",
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"duplicate",
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@namespace: "test-ns"
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);
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_dbContext.PendingServiceDiscoveries.Add(service1);
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await _dbContext.SaveChangesAsync();
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// Act: 尝试添加相同名称和命名空间的服务
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var service2 = TestData.CreateRoutedK8sService(
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"duplicate-service",
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"/api/duplicate",
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"duplicate",
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@namespace: "test-ns"
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);
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// 在真实场景中，这里应该更新而不是创建新记录
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// 或者根据业务逻辑处理冲突
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var existing = await _dbContext.PendingServiceDiscoveries
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.FirstOrDefaultAsync(s => s.K8sServiceName == "duplicate-service" &&
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s.K8sNamespace == "test-ns" &&
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!s.IsDeleted);
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if (existing != null)
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{
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// 更新现有记录
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existing.PodCount = service2.PodCount;
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existing.Version++;
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_dbContext.PendingServiceDiscoveries.Update(existing);
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}
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else
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{
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_dbContext.PendingServiceDiscoveries.Add(service2);
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}
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await _dbContext.SaveChangesAsync();
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// Assert
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var configs = await _dbContext.PendingServiceDiscoveries
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.Where(s => s.K8sServiceName == "duplicate-service" &&
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s.K8sNamespace == "test-ns" &&
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!s.IsDeleted)
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.ToListAsync();
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configs.Should().HaveCount(1);
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}
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#endregion
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#region 健康检查相关测试
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[Fact]
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public async Task WhenServiceHasMultiplePorts_ShouldStoreAllPorts()
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{
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// Arrange
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var service = TestData.CreateK8sService(
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serviceName: "multi-port-service",
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@namespace: "test-ns",
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labels: new Dictionary<string, string> { ["app-router-name"] = "multi" }
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);
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service.DiscoveredPorts = "[8080, 8443, 9090]";
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// Act
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_dbContext.PendingServiceDiscoveries.Add(service);
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await _dbContext.SaveChangesAsync();
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// Assert
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var saved = await _dbContext.PendingServiceDiscoveries
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.FirstOrDefaultAsync(s => s.K8sServiceName == "multi-port-service");
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saved.Should().NotBeNull();
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saved!.DiscoveredPorts.Should().Be("[8080, 8443, 9090]");
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}
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[Fact]
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public async Task WhenServiceHasNoClusterIP_ShouldHandleGracefully()
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{
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// Arrange: Headless service (没有 ClusterIP)
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var service = TestData.CreateK8sService(
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serviceName: "headless-service",
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@namespace: "test-ns",
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labels: new Dictionary<string, string> { ["app-router-name"] = "headless" },
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clusterIp: null!
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);
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// Act
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_dbContext.PendingServiceDiscoveries.Add(service);
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await _dbContext.SaveChangesAsync();
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// Assert
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var saved = await _dbContext.PendingServiceDiscoveries
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.FirstOrDefaultAsync(s => s.K8sServiceName == "headless-service");
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saved.Should().NotBeNull();
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saved!.K8sClusterIP.Should().BeNull();
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}
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#endregion
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}
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