tests(infra.tests): wip on builder apis for test data

tests/FiscalOS.Infra.Tests/Data/AccountBuilder.cs

@@ -0,0 +1,40 @@
+namespace FiscalOS.Infra.Tests.Data;
+
+internal sealed class AccountBuilder
+{
+  private string _name = "accountName";
+  private AccountMetadata? _metadata;
+
+  private AccountBuilder()
+  {
+  }
+
+  public static AccountBuilder Create()
+  {
+    return new();
+  }
+
+  public AccountBuilder WithName(string name)
+  {
+    _name = name;
+    return this;
+  }
+
+  public AccountBuilder WithMetadata(Action<AccountMetadataBuilder>? action = null)
+  {
+    var imb = AccountMetadataBuilder.Create();
+    action?.Invoke(imb);
+    _metadata = imb.Build();
+    return this;
+  }
+
+  public Account Build()
+  {
+    if (_metadata is null)
+    {
+      throw new InvalidOperationException($"You must call {nameof(WithMetadata)} prior to building");
+    }
+
+    return Account.From(_name, _metadata);
+  }
+}