First commit. Include junk from template to remove

tests/Application.UnitTests/Common/Exceptions/ValidationExceptionTests.cs

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+using Hutopy.Application.Common.Exceptions;
+using FluentAssertions;
+using FluentValidation.Results;
+using NUnit.Framework;
+
+namespace Hutopy.Application.UnitTests.Common.Exceptions;
+
+public class ValidationExceptionTests
+{
+    [Test]
+    public void DefaultConstructorCreatesAnEmptyErrorDictionary()
+    {
+        var actual = new ValidationException().Errors;
+
+        actual.Keys.Should().BeEquivalentTo(Array.Empty<string>());
+    }
+
+    [Test]
+    public void SingleValidationFailureCreatesASingleElementErrorDictionary()
+    {
+        var failures = new List<ValidationFailure>
+            {
+                new ValidationFailure("Age", "must be over 18"),
+            };
+
+        var actual = new ValidationException(failures).Errors;
+
+        actual.Keys.Should().BeEquivalentTo(new string[] { "Age" });
+        actual["Age"].Should().BeEquivalentTo(new string[] { "must be over 18" });
+    }
+
+    [Test]
+    public void MulitpleValidationFailureForMultiplePropertiesCreatesAMultipleElementErrorDictionaryEachWithMultipleValues()
+    {
+        var failures = new List<ValidationFailure>
+            {
+                new ValidationFailure("Age", "must be 18 or older"),
+                new ValidationFailure("Age", "must be 25 or younger"),
+                new ValidationFailure("Password", "must contain at least 8 characters"),
+                new ValidationFailure("Password", "must contain a digit"),
+                new ValidationFailure("Password", "must contain upper case letter"),
+                new ValidationFailure("Password", "must contain lower case letter"),
+            };
+
+        var actual = new ValidationException(failures).Errors;
+
+        actual.Keys.Should().BeEquivalentTo(new string[] { "Password", "Age" });
+
+        actual["Age"].Should().BeEquivalentTo(new string[]
+        {
+                "must be 25 or younger",
+                "must be 18 or older",
+        });
+
+        actual["Password"].Should().BeEquivalentTo(new string[]
+        {
+                "must contain lower case letter",
+                "must contain upper case letter",
+                "must contain at least 8 characters",
+                "must contain a digit",
+        });
+    }
+}