Merge pull request #373 from ckadluba/azure-tennant-tests-fixes

Additional tests for Azure managed identity tennant Id.

Author: ckadluba

test/Serilog.Sinks.MSSqlServer.Tests/Sinks/MSSqlServer/Platform/AzureManagedServiceAuthenticatorStubTests.cs

@@ -18,7 +18,7 @@ public void InitializeDoesNotThrowsIfUseAzureManagedIdentityIsFalse()
         public void InitializeThrowsIfUseAzureManagedIdentityIsTrue()
         {
             // Throws because operation is not supported on the target framework that uses stub implementation
-            Assert.Throws<InvalidOperationException>(() => new AzureManagedServiceAuthenticator(true, "TestAccessToken"));
+            Assert.Throws<InvalidOperationException>(() => new AzureManagedServiceAuthenticator(true, "TestAccessToken", "TestTennantId"));
         }
     }
 }

test/Serilog.Sinks.MSSqlServer.Tests/Sinks/MSSqlServer/Platform/AzureManagedServiceAuthenticatorTests.cs

@@ -50,5 +50,15 @@ public async Task GetAuthenticationTokenThrowsIfUseAzureManagedIdentityIsTrueAnd
             // Act + assert
             await Assert.ThrowsAsync<AzureServiceTokenProviderException>(() => sut.GetAuthenticationToken()).ConfigureAwait(false);
         }
+
+        [Fact]
+        public async Task GetAuthenticationTokenThrowsIfUseAzureManagedIdentityIsTrueAndTennantInvalid()
+        {
+            // Arrange
+            var sut = new AzureManagedServiceAuthenticator(true, "https://database.windows.net/", "TestTennantId");
+
+            // Act + assert
+            await Assert.ThrowsAsync<AzureServiceTokenProviderException>(() => sut.GetAuthenticationToken()).ConfigureAwait(false);
+        }
     }
 }