Initial curated itworx-knowledge-hub source from 3b1751d0d9dee551aa6994eee0093704dc334817

tests/backend/ItWorx.KnowledgeHub.Domain.Tests/EmailAddressTests.cs

@@ -0,0 +1,33 @@
+using ItWorx.KnowledgeHub.Domain.Identity;
+
+namespace ItWorx.KnowledgeHub.Domain.Tests;
+
+public sealed class EmailAddressTests
+{
+    [Fact]
+    public void Create_normalizes_case_and_whitespace()
+    {
+        var email = EmailAddress.Create("  Owner@ItWorx.Example  ");
+
+        Assert.Equal("owner@itworx.example", email.Value);
+    }
+
+    [Theory]
+    [InlineData("")]
+    [InlineData("not-an-email")]
+    [InlineData("missing-domain@")]
+    [InlineData("@missing-local.example")]
+    public void Create_rejects_invalid_shapes(string value)
+    {
+        Assert.Throws<ArgumentException>(() => EmailAddress.Create(value));
+    }
+
+    [Fact]
+    public void TryCreate_returns_false_instead_of_throwing()
+    {
+        var succeeded = EmailAddress.TryCreate("not-an-email", out var emailAddress);
+
+        Assert.False(succeeded);
+        Assert.Null(emailAddress);
+    }
+}