Add tests for Spring Boot Admin

Author: bart-vmware

src/Management/test/Endpoint.Test/SpringBootAdminClient/ServiceCollectionExtensionsTest.cs

@@ -7,32 +7,21 @@
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
-using Steeltoe.Common;
-using Steeltoe.Common.Net;
 using Steeltoe.Management.Endpoint.SpringBootAdminClient;
 
 namespace Steeltoe.Management.Endpoint.Test.SpringBootAdminClient;
 
 public sealed class ServiceCollectionExtensionsTest
 {
     [Fact]
-    public async Task AddSpringBootAdminClient_AddsHostedService()
+    public async Task Registers_dependent_services()
     {
-        IConfiguration configuration = new ConfigurationBuilder().Build();
-
         var services = new ServiceCollection();
-        services.AddSingleton(configuration);
+        services.AddSingleton<IConfiguration>(new ConfigurationBuilder().Build());
         services.AddSingleton<IServer, TestServer>();
-        services.AddLogging();
         services.AddSpringBootAdminClient();
         await using ServiceProvider serviceProvider = services.BuildServiceProvider(true);
 
-        serviceProvider.GetService<IApplicationInstanceInfo>().Should().NotBeNull();
-        serviceProvider.GetService<InetUtils>().Should().NotBeNull();
-        serviceProvider.GetService<TimeProvider>().Should().NotBeNull();
-        serviceProvider.GetService<IDomainNameResolver>().Should().NotBeNull();
-        serviceProvider.GetService<AppUrlCalculator>().Should().NotBeNull();
-        serviceProvider.GetService<SpringBootAdminRefreshRunner>().Should().NotBeNull();
         serviceProvider.GetServices<IHostedService>().OfType<SpringBootAdminClientHostedService>().Should().ContainSingle();
     }
 }

src/Management/test/Endpoint.Test/SpringBootAdminClient/SpringBootAdminRefreshRunnerTest.cs

@@ -26,6 +26,31 @@ public sealed class SpringBootAdminRefreshRunnerTest
     private const string CurrentTime = "2021-03-31T23:57:53.896653Z";
     private static readonly string CurrentAppName = Assembly.GetEntryAssembly()!.GetName().Name!;
 
+    [Fact]
+    public async Task Configures_default_settings()
+    {
+        var services = new ServiceCollection();
+        services.AddSingleton<IConfiguration>(new ConfigurationBuilder().Build());
+        services.AddSpringBootAdminClient();
+        await using ServiceProvider serviceProvider = services.BuildServiceProvider(true);
+
+        SpringBootAdminClientOptions options = serviceProvider.GetRequiredService<IOptions<SpringBootAdminClientOptions>>().Value;
+
+        options.Url.Should().BeNull();
+        options.ApplicationName.Should().BeNull();
+        options.BaseUrl.Should().BeNull();
+        options.BaseScheme.Should().BeNull();
+        options.BaseHost.Should().BeNull();
+        options.BasePort.Should().BeNull();
+        options.BasePath.Should().BeNull();
+        options.UseNetworkInterfaces.Should().BeFalse();
+        options.PreferIPAddress.Should().BeFalse();
+        options.ValidateCertificates.Should().BeTrue();
+        options.ConnectionTimeout.Should().Be(5.Seconds());
+        options.RefreshInterval.Should().Be(15.Seconds());
+        options.Metadata.Should().BeEmpty();
+    }
+
     [Fact]
     public async Task BindsConfiguration()
     {