Update container functional test (#3251)

Author: Porges

src/ApiService/FunctionalTests/TestContainer.cs

@@ -6,10 +6,10 @@
 namespace FunctionalTests {
     [Trait("Category", "Live")]
     public class TestContainer {
-
         private readonly ITestOutputHelper _output;
-        ContainerApi _containerApi;
-        DownloadApi _downloadApi;
+        private readonly ContainerApi _containerApi;
+        private readonly DownloadApi _downloadApi;
+
         public TestContainer(ITestOutputHelper output) {
             _output = output;
             _containerApi = new ContainerApi(ApiClient.Endpoint, ApiClient.Request, output);
@@ -19,20 +19,20 @@ public TestContainer(ITestOutputHelper output) {
         [Fact]
         public async Task DownloadNonExistentContainer() {
             var r1 = await _downloadApi.Get();
-            r1.IsOk!.Should().BeFalse();
+            r1.IsOk.Should().BeFalse();
             r1.ErrorV!.Item2!.ShouldBeProvided("container").Should().BeTrue();
 
             var r2 = await _downloadApi.Get(container: Guid.NewGuid().ToString());
-            r2.IsOk!.Should().BeFalse();
+            r2.IsOk.Should().BeFalse();
             r2.ErrorV!.Item2!.ShouldBeProvided("filename").Should().BeTrue();
 
             var r3 = await _downloadApi.Get(filename: Guid.NewGuid().ToString());
-            r3.IsOk!.Should().BeFalse();
+            r3.IsOk.Should().BeFalse();
             r3.ErrorV!.Item2!.ShouldBeProvided("container").Should().BeTrue();
 
             var r4 = await _downloadApi.Get(container: Guid.NewGuid().ToString(), filename: Guid.NewGuid().ToString());
-            r4.IsOk!.Should().BeFalse();
-            r4.ErrorV!.Item1.Should().Be(System.Net.HttpStatusCode.InternalServerError);
+            r4.IsOk.Should().BeFalse();
+            r4.ErrorV!.Item1.Should().Be(System.Net.HttpStatusCode.NotFound);
         }
 
         [Fact]