Update test cases

Author: justinyoo

test/Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Tests/Configurations/DefaultOpenApiConfigurationOptionsTests.cs

@@ -17,6 +17,14 @@ public class DefaultOpenApiConfigurationOptionsTests
         [TestMethod]
         public void Given_Type_When_Instantiated_Then_Properties_Should_Return_Value()
         {
+            Environment.SetEnvironmentVariable("OpenApi__DocVersion", null);
+            Environment.SetEnvironmentVariable("OpenApi__DocTitle", null);
+            Environment.SetEnvironmentVariable("OpenApi__HostNames", null);
+            Environment.SetEnvironmentVariable("OpenApi__Version", null);
+            Environment.SetEnvironmentVariable("AZURE_FUNCTIONS_ENVIRONMENT", "Development");
+            Environment.SetEnvironmentVariable("OpenApi__ForceHttp", null);
+            Environment.SetEnvironmentVariable("OpenApi__ForceHttps", null);
+
             var options = new DefaultOpenApiConfigurationOptions();
 
             options.Info.Should().NotBeNull();
@@ -27,7 +35,9 @@ public void Given_Type_When_Instantiated_Then_Properties_Should_Return_Value()
             options.Servers.Should().HaveCount(0);
 
             options.OpenApiVersion.Should().Be(OpenApiVersionType.V2);
-            options.IncludeRequestingHostName.Should().BeFalse();
+            options.IncludeRequestingHostName.Should().BeTrue();
+            options.ForceHttp.Should().BeFalse();
+            options.ForceHttps.Should().BeFalse();
         }
 
         [DataTestMethod]