Add unit tests for Z80 file memory block handling

Author: voytas

tests/Spectron.Files.Tests/Z80/Z80FileTests.cs

@@ -0,0 +1,40 @@
+using OldBit.Spectron.Files.Z80;
+using OldBit.Spectron.Files.Z80.Types;
+
+namespace OldBit.Spectron.Files.Tests.Z80;
+
+public class Z80FileTests
+{
+    [Fact]
+    public void Memory48_ShouldHaveCorrectBlocsAndValues()
+    {
+        var memory = new byte[0xC000];
+
+        Array.Fill<byte>(memory, 8, 0x0000, 0x4000);
+        Array.Fill<byte>(memory, 4, 0x4000, 0x4000);
+        Array.Fill<byte>(memory, 5, 0x8000, 0x4000);
+
+        var header = new Z80Header
+        {
+            HardwareMode = HardwareMode.Spectrum48,
+            PC = 0xE000,
+        };
+
+        var snapshot = new Z80File(header, memory);
+
+        snapshot.MemoryBlocks.Count.ShouldBe(3);
+
+        snapshot.MemoryBlocks[0].PageNumber.ShouldBe(4);
+        snapshot.MemoryBlocks[0].Data.Length.ShouldBe(0x4000);
+        snapshot.MemoryBlocks[0].Data.ShouldAllBe(b => b == 4);
+
+        snapshot.MemoryBlocks[1].PageNumber.ShouldBe(5);
+        snapshot.MemoryBlocks[1].Data.Length.ShouldBe(0x4000);
+        snapshot.MemoryBlocks[1].Data.ShouldAllBe(b => b == 5);
+
+        snapshot.MemoryBlocks[2].PageNumber.ShouldBe(8);
+        snapshot.MemoryBlocks[2].Data.Length.ShouldBe(0x4000);
+        snapshot.MemoryBlocks[2].Data.ShouldAllBe(b => b == 8);
+
+    }
+}