stabilizaiton work - projects rework for maintenanceability and ui livening

src/__Libraries/__Tests/StellaOps.Cryptography.Kms.Tests/FileKmsClientTests.Revoke.cs

@@ -0,0 +1,28 @@
+using System.Text;
+using StellaOps.Cryptography.Kms;
+using StellaOps.TestKit;
+using Xunit;
+
+namespace StellaOps.Cryptography.Kms.Tests;
+
+public sealed partial class FileKmsClientTests
+{
+    [Trait("Category", TestCategories.Unit)]
+    [Fact]
+    public async Task RevokePreventsSigningAsync()
+    {
+        using var workspace = new TestWorkspace(nameof(RevokePreventsSigningAsync));
+        using var client = workspace.CreateClient();
+        var keyId = "kms-revoke";
+
+        await client.RotateAsync(keyId);
+        await client.RevokeAsync(keyId);
+
+        var metadata = await client.GetMetadataAsync(keyId);
+        Assert.Equal(KmsKeyState.Revoked, metadata.State);
+        Assert.All(metadata.Versions, v => Assert.Equal(KmsKeyState.Revoked, v.State));
+
+        var data = Encoding.UTF8.GetBytes("kms-revoke-data");
+        await Assert.ThrowsAsync<InvalidOperationException>(() => client.SignAsync(keyId, null, data));
+    }
+}