I was today years old when I realized /tenants/***/instances/... was not even selecting the specified tenant before fetching instances

mocha-dotnet/src/lib/Mocha.Core.UI.Server/Commands/InstanceCommand.cs

@@ -31,6 +31,17 @@ public abstract class InstanceCommand : TenantedCommand
 		if (e.Context.Request.PathParts.Length < 5)
 			return true;
 
+		string tenantName = e.Context.Request.PathParts[2];
+		TenantHandle th = oms.GetTenantByName(tenantName);
+		if (th != TenantHandle.Empty)
+		{
+			oms.SelectTenant(th);
+		}
+		else
+		{
+			Console.Error.WriteLine("failed to select tenant '{0}'", tenantName);
+		}
+
 		string iid = e.Context.Request.PathParts[4];
 		if (oms.TryParseInstanceRef(iid, out InstanceHandle ih))
 		{

mocha-dotnet/src/lib/Mocha.Core.UI.Server/Commands/TenantsListCommand.cs

@@ -48,7 +48,17 @@ public class TenantsListCommand : OmsServerCommand
 		}
 		else if (e.Context.Request.PathParts.Length > 3)
 		{
-			if (e.Context.Request.PathParts[3] == "instances")
+			if (e.Context.Request.PathParts[3] == "create")
+			{
+				string tenantName = e.Context.Request.PathParts[2];
+				TenantHandle th = oms.CreateTenant(tenantName);
+				
+				JsonObject obj = new JsonObject();
+				obj.Add("result", JsonValue.Create("success"));
+				obj.Add("tenantHandle", th.ToString());
+				sw.Write(obj.ToJsonString());
+			}
+			else if (e.Context.Request.PathParts[3] == "instances")
 			{
 				if (e.Context.Request.PathParts.Length > 4)
 				{

mocha-dotnet/tests/Mocha.Core.Tests/TenantedTests.cs

@@ -77,4 +77,18 @@ public class TenantedTests : OmsTestsBase
 		InstanceHandle att2 = Oms.GetInstance(KnownAttributeGuids.Text.ContentType);
 		Assert.That(val, Is.Not.EqualTo("Test Value"));
 	}
+
+	[Test]
+	public void Get_Instance_After_Create_Tenant_Doesnt_Trash_Super_Tenant()
+	{
+		Oms.SelectTenant(Oms.GetTenantByName("super"));
+
+		Class cls = Oms.GetInstance<Class>(TEST_CLASS_GUID);
+		Assert.That(cls, Is.Not.Null);
+
+		Oms.CreateTenant("dummy");
+
+		Class cls2 = Oms.GetInstance<Class>(TEST_CLASS_GUID);
+		Assert.That(cls2, Is.Not.Null);
+	}
 }

mocha-dotnet/tests/Mocha.Oms.Server.Tests/RemoteTests.cs

@@ -63,6 +63,55 @@ public class RemoteTests
 		Assert.That(json["tenants"].AsArray()[0].ToString(), Is.EqualTo("super"));
 	}
 
+	/// <summary>
+	/// Checks to make sure that the class Class [1$1] on the super tenant exists.
+	/// </summary>
+	/// <returns></returns>
+	[Test]
+	public async Task Get_Class_Instance()
+	{
+		HttpClient client = new HttpClient();
+		HttpResponseMessage resp = client.Send(new HttpRequestMessage(HttpMethod.Get, BuildUrl("/tenants/super/instances/1$1")));
+		
+		Assert.That(resp.StatusCode, Is.EqualTo(System.Net.HttpStatusCode.OK));
+		Assert.That(resp.Content.Headers.ContentType.ToString(), Is.EqualTo("application/json"));
+		
+		string content = await resp.Content.ReadAsStringAsync();
+		
+		JsonObject json = JsonNode.Parse(content) as JsonObject;
+		Assert.That(json["globalIdentifier"].ToString(), Is.EqualTo(KnownInstanceGuids.Classes.Class.ToString()));
+	}
+
+	/// <summary>
+	/// Checks to make sure that the class Class [1$1] on the super tenant exists after a new tenant is created.
+	/// </summary>
+	/// <returns></returns>
+	[Test]
+	public async Task Get_Class_Instance_After_Create_Tenant()
+	{
+		// This test was failing not because the class did not exist, but because after the call to create a tenant,
+		// the call to request instance details WAS NOT SELECTING THE PROPER TENANT. In other words,
+		// /tenants/***/instances... would NEVER select the specified tenant. In this case, it was using the tenant
+		// already selected from the call to create, e.g. 'contoso1', rather than the tenant we requested in the API
+		// call, 'super'.
+		// 
+		// This API call was ALWAYS broken!
+		HttpClient client = new HttpClient();
+		
+		HttpResponseMessage resp1 = client.Send(new HttpRequestMessage(HttpMethod.Get, BuildUrl("/tenants/contoso1/create")));
+		string cvm = await resp1.Content.ReadAsStringAsync();
+
+		HttpResponseMessage resp = client.Send(new HttpRequestMessage(HttpMethod.Get, BuildUrl("/tenants/super/instances/1$1")));
+		
+		Assert.That(resp.StatusCode, Is.EqualTo(System.Net.HttpStatusCode.OK));
+		Assert.That(resp.Content.Headers.ContentType.ToString(), Is.EqualTo("application/json"));
+		
+		string content = await resp.Content.ReadAsStringAsync();
+		
+		JsonObject json = JsonNode.Parse(content) as JsonObject;
+		Assert.That(json["globalIdentifier"].ToString(), Is.EqualTo(KnownInstanceGuids.Classes.Class.ToString()));
+	}
+
 	[Test]
 	public async Task Instance_Json_Test()
 	{