fix(runner): add ability to load credentials in Create method

closes #139

src/SecTester.Runner/SecRunner.cs

@@ -45,8 +45,13 @@ public async ValueTask DisposeAsync()
     GC.SuppressFinalize(this);
   }
 
-  public static SecRunner Create(Configuration configuration)
+  public static async Task<SecRunner> Create(Configuration configuration)
   {
+    if (configuration.Credentials is null)
+    {
+      await configuration.LoadCredentials().ConfigureAwait(false);
+    }
+
     var collection = new ServiceCollection()
       .AddSecTesterConfig(configuration)
       .AddSecTesterBus()

test/SecTester.Runner.Tests/SecRunnerTests.cs

@@ -18,6 +18,8 @@ public class SecRunnerTests
   private readonly IRepeaterFactory _repeaterFactory = Substitute.For<IRepeaterFactory>();
   private readonly IRepeaters _repeatersManager = Substitute.For<IRepeaters>();
   private readonly IScanFactory _scanFactory = Substitute.For<IScanFactory>();
+  private readonly ICredentialProvider _credentialProvider = Substitute.For<ICredentialProvider>();
+
   private readonly SecRunner _sut;
 
   public SecRunnerTests()
@@ -31,12 +33,43 @@ public SecRunnerTests()
   public async Task Create_CreatesCompositeRoot()
   {
     // act
-    await using var secRunner = SecRunner.Create(_configuration);
+    await using var secRunner = await SecRunner.Create(_configuration);
 
     // assert
     secRunner.Should().BeOfType<SecRunner>();
   }
 
+  [Fact]
+  public async Task Create_AbleToLoadCredentials_CreatesCompositeRoot()
+  {
+    // arrange
+    var configuration = new Configuration(Hostname,
+      credentialProviders: new List<ICredentialProvider> { _credentialProvider });
+
+    _credentialProvider.Get().Returns(new Credentials(Token));
+
+    // act
+    await using var secRunner = await SecRunner.Create(configuration);
+
+    // assert
+    secRunner.Should().BeOfType<SecRunner>();
+    await _credentialProvider.Received(1).Get();
+  }
+
+  [Fact]
+  public async Task Create_CouldNotLoadCredentials_ThrowsError()
+  {
+    // arrange
+    var configuration = new Configuration(Hostname,
+      credentialProviders: new List<ICredentialProvider> { _credentialProvider });
+
+    // act
+    var act = () => SecRunner.Create(configuration);
+
+    // assert
+    await act.Should().ThrowAsync<InvalidOperationException>("Could not load credentials from any providers");
+  }
+
   [Fact]
   public async Task Init_StartsRepeater()
   {