too much for one commit
This commit is contained in:
Nils Blomgren
@@ -0,0 +1,212 @@
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using EntKube.Clusters.Domain;
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using EntKube.Clusters.Features.AdoptCluster;
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using EntKube.Clusters.Features.AdoptCluster.UninstallComponent;
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using EntKube.Clusters.Infrastructure;
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using EntKube.SharedKernel.Domain;
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using FluentAssertions;
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using Moq;
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namespace EntKube.Clusters.Tests.Features;
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public class UninstallComponentHandlerTests
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{
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private readonly InMemoryClusterRepository repository;
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private readonly Mock<IComponentInstaller> kyvernoInstaller;
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private readonly Mock<IComponentInstaller> monitoringInstaller;
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private readonly UninstallComponentHandler handler;
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public UninstallComponentHandlerTests()
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{
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repository = new InMemoryClusterRepository();
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kyvernoInstaller = new Mock<IComponentInstaller>();
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monitoringInstaller = new Mock<IComponentInstaller>();
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kyvernoInstaller.Setup(i => i.ComponentName).Returns("kyverno");
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monitoringInstaller.Setup(i => i.ComponentName).Returns("monitoring");
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List<IComponentInstaller> installers = new() { kyvernoInstaller.Object, monitoringInstaller.Object };
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handler = new UninstallComponentHandler(repository, installers, Microsoft.Extensions.Logging.Abstractions.NullLogger<UninstallComponentHandler>.Instance);
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}
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[Fact]
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public async Task HandleAsync_ClusterNotFound_ReturnsFailure()
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{
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// Arrange — request an uninstall on a cluster that doesn't exist.
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UninstallComponentRequest request = new("kyverno");
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// Act
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Result<InstallResult> result = await handler.HandleAsync(Guid.NewGuid(), request);
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// Assert
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result.IsFailure.Should().BeTrue();
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result.Error.Should().Contain("not found");
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}
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[Fact]
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public async Task HandleAsync_ClusterNotConnected_ReturnsFailure()
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{
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// Arrange — Cluster is Pending, can't uninstall from it.
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KubernetesCluster cluster = KubernetesCluster.Register(
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"pending-cluster", "https://k8s.dev:6443", "kubeconfig-data", Guid.NewGuid(), "ctx", Guid.NewGuid());
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await repository.AddAsync(cluster);
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UninstallComponentRequest request = new("kyverno");
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// Act
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Result<InstallResult> result = await handler.HandleAsync(cluster.Id, request);
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// Assert
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result.IsFailure.Should().BeTrue();
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result.Error.Should().Contain("connected");
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}
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[Fact]
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public async Task HandleAsync_UnknownComponent_ReturnsFailureWithAvailable()
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{
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// Arrange — Requesting an uninstall for a component that has no installer.
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KubernetesCluster cluster = KubernetesCluster.Register(
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"test-cluster", "https://k8s.test:6443", "kubeconfig-data", Guid.NewGuid(), "ctx", Guid.NewGuid());
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cluster.MarkConnected();
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await repository.AddAsync(cluster);
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UninstallComponentRequest request = new("nonexistent-thing");
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// Act
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Result<InstallResult> result = await handler.HandleAsync(cluster.Id, request);
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// Assert — Should list available installers.
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result.IsFailure.Should().BeTrue();
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result.Error.Should().Contain("kyverno");
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result.Error.Should().Contain("monitoring");
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}
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[Fact]
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public async Task HandleAsync_ValidComponent_DelegatesToInstallerUninstall()
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{
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// Arrange — Uninstall Kyverno from a connected cluster.
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KubernetesCluster cluster = KubernetesCluster.Register(
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"prod-cluster", "https://k8s.prod:6443", "kubeconfig-data", Guid.NewGuid(), "prod-ctx", Guid.NewGuid());
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cluster.MarkConnected();
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await repository.AddAsync(cluster);
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kyvernoInstaller.Setup(i => i.UninstallAsync(cluster, It.IsAny<ComponentInstallOptions>(), It.IsAny<CancellationToken>()))
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.ReturnsAsync(new InstallResult(
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Success: true,
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ComponentName: "kyverno",
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Message: "Kyverno uninstalled successfully",
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Actions: new List<string> { "Helm uninstall kyverno" }));
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UninstallComponentRequest request = new("kyverno");
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// Act
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Result<InstallResult> result = await handler.HandleAsync(cluster.Id, request);
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// Assert — Should succeed and return the uninstall result.
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result.IsSuccess.Should().BeTrue();
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result.Value!.Success.Should().BeTrue();
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result.Value.ComponentName.Should().Be("kyverno");
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result.Value.Actions.Should().Contain("Helm uninstall kyverno");
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}
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[Fact]
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public async Task HandleAsync_InstallerFails_ReturnsFailure()
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{
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// Arrange — The uninstall encounters an error.
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KubernetesCluster cluster = KubernetesCluster.Register(
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"flaky-cluster", "https://k8s.flaky:6443", "kubeconfig-data", Guid.NewGuid(), "ctx", Guid.NewGuid());
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cluster.MarkConnected();
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await repository.AddAsync(cluster);
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kyvernoInstaller.Setup(i => i.UninstallAsync(cluster, It.IsAny<ComponentInstallOptions>(), It.IsAny<CancellationToken>()))
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.ReturnsAsync(new InstallResult(
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Success: false,
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ComponentName: "kyverno",
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Message: "Helm uninstall failed: resources still in use",
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Actions: new List<string> { "Error: resources still in use" }));
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UninstallComponentRequest request = new("kyverno");
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// Act
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Result<InstallResult> result = await handler.HandleAsync(cluster.Id, request);
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// Assert
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result.IsFailure.Should().BeTrue();
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result.Error.Should().Contain("resources still in use");
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}
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[Fact]
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public async Task HandleAsync_PassesOptionsToInstaller()
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{
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// Arrange — Uninstall monitoring with a custom namespace.
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KubernetesCluster cluster = KubernetesCluster.Register(
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"config-cluster", "https://k8s.cfg:6443", "kubeconfig-data", Guid.NewGuid(), "ctx", Guid.NewGuid());
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cluster.MarkConnected();
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await repository.AddAsync(cluster);
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ComponentInstallOptions? capturedOptions = null;
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monitoringInstaller.Setup(i => i.UninstallAsync(cluster, It.IsAny<ComponentInstallOptions>(), It.IsAny<CancellationToken>()))
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.Callback<KubernetesCluster, ComponentInstallOptions, CancellationToken>((_, opts, _) => capturedOptions = opts)
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.ReturnsAsync(new InstallResult(
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Success: true,
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ComponentName: "monitoring",
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Message: "Monitoring uninstalled",
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Actions: new List<string>()));
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UninstallComponentRequest request = new("monitoring", Namespace: "custom-monitoring");
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// Act
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Result<InstallResult> result = await handler.HandleAsync(cluster.Id, request);
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// Assert — The handler should forward the namespace to the installer.
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result.IsSuccess.Should().BeTrue();
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capturedOptions.Should().NotBeNull();
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capturedOptions!.Namespace.Should().Be("custom-monitoring");
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}
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[Fact]
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public async Task HandleAsync_ComponentNameIsCaseInsensitive()
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{
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// Arrange — Use mixed case for the component name.
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KubernetesCluster cluster = KubernetesCluster.Register(
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"case-cluster", "https://k8s.case:6443", "kubeconfig-data", Guid.NewGuid(), "ctx", Guid.NewGuid());
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cluster.MarkConnected();
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await repository.AddAsync(cluster);
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kyvernoInstaller.Setup(i => i.UninstallAsync(cluster, It.IsAny<ComponentInstallOptions>(), It.IsAny<CancellationToken>()))
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.ReturnsAsync(new InstallResult(
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Success: true,
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ComponentName: "kyverno",
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Message: "Uninstalled",
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Actions: new List<string>()));
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UninstallComponentRequest request = new("Kyverno");
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// Act
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Result<InstallResult> result = await handler.HandleAsync(cluster.Id, request);
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// Assert
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result.IsSuccess.Should().BeTrue();
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}
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}
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