add tests for entity

CleanAspCore.Api.Tests/Data/EntityTests.cs

@@ -0,0 +1,79 @@
+using CleanAspCore.Data.Models;
+
+namespace CleanAspCore.Api.Tests.Data;
+
+public class EntityTests
+{
+    private class TestEntity : Entity;
+
+    [Test]
+    public void EntityWithDifferentId_OpEqual_ReturnsFalse()
+    {
+        var entity1 = new TestEntity { Id = Guid.NewGuid() };
+        var entity2 = new TestEntity { Id = Guid.NewGuid() };
+
+        (entity1 == entity2).Should().BeFalse();
+    }
+
+    [Test]
+    public void EntityWithSameId_OpEqual_ReturnsTrue()
+    {
+        var id = Guid.NewGuid();
+        var entity1 = new TestEntity { Id = id };
+        var entity2 = new TestEntity { Id = id };
+
+        (entity1 == entity2).Should().BeTrue();
+    }
+
+    [Test]
+    public void EntitySameInstance_OpEqual_ReturnsTrue()
+    {
+        var id = Guid.NewGuid();
+        var entity1 = new TestEntity { Id = id };
+        var entity2 = entity1;
+
+        (entity1 == entity2).Should().BeTrue();
+    }
+
+    [Test]
+    public void EntityAndNull_OpEqual_ReturnsFalse()
+    {
+        var entity1 = new TestEntity { Id = Guid.NewGuid() };
+        TestEntity entity2 = null!;
+
+#pragma warning disable CA1508
+        (entity1 == entity2).Should().BeFalse();
+#pragma warning restore CA1508
+    }
+
+    [Test]
+    public void NullAndNull_OpEqual_ReturnsTrue()
+    {
+        TestEntity entity1 = null!;
+        TestEntity entity2 = null!;
+
+#pragma warning disable CA1508
+        (entity1 == entity2).Should().BeTrue();
+#pragma warning restore CA1508
+    }
+
+    [Test]
+    public void EntityWithDifferentId_OpNotEqual_ReturnsFalse()
+    {
+        var entity1 = new TestEntity { Id = Guid.NewGuid() };
+        var entity2 = new TestEntity { Id = Guid.NewGuid() };
+
+        (entity1 != entity2).Should().BeTrue();
+    }
+
+    [Test]
+    public void EntityWithSameId_OpNotEqual_ReturnsTrue()
+    {
+        var id = Guid.NewGuid();
+        var entity1 = new TestEntity { Id = id };
+        var entity2 = new TestEntity { Id = id };
+
+        (entity1 != entity2).Should().BeFalse();
+    }
+}
+