Add LocalImageFile tests

StabilityMatrix.Tests/Models/LocalImageFileTests.cs

@@ -0,0 +1,33 @@
+using StabilityMatrix.Core.Models;
+using StabilityMatrix.Core.Models.Database;
+
+namespace StabilityMatrix.Tests.Models;
+
+[TestClass]
+public class LocalImageFileTests
+{
+    [TestMethod]
+    public void TestComparer()
+    {
+        var comparer = LocalImageFile.Comparer;
+
+        var file1 = new LocalImageFile
+        {
+            AbsolutePath = "same",
+            GenerationParameters = new GenerationParameters { Width = 10 }
+        };
+
+        var file2 = new LocalImageFile
+        {
+            AbsolutePath = "same",
+            GenerationParameters = new GenerationParameters { Width = 10 }
+        };
+
+        var file3 = new LocalImageFile { AbsolutePath = "different" };
+
+        Assert.IsTrue(comparer.Equals(file1, file2));
+        Assert.AreEqual(comparer.GetHashCode(file1), comparer.GetHashCode(file2));
+        Assert.IsFalse(comparer.Equals(file1, file3));
+        Assert.AreNotEqual(comparer.GetHashCode(file1), comparer.GetHashCode(file3));
+    }
+}