diff --git a/source/Trek-12/Tests/PlayerTests.cs b/source/Trek-12/Tests/PlayerTests.cs
index 194fa85..110c81d 100644
--- a/source/Trek-12/Tests/PlayerTests.cs
+++ b/source/Trek-12/Tests/PlayerTests.cs
@@ -40,4 +40,35 @@ public class PlayerTests
         var player2 = new Player(pseudo2);
         Assert.Equal(expectedResult, player1.GetHashCode() == player2.GetHashCode());
     }
+
+    [Fact]
+    public void BaseConstructor_WithNoParameterssets_Default()
+    {
+        Player player = new Player();
+        Assert.Equal("Player", player.Pseudo);
+        Assert.Equal("DefaultProfilePicture", player.ProfilePicture);
+    }
+
+    [Fact]
+    public void ChooseOperation_ReturnsLower()
+    {
+        Player player = new Player();
+        Assert.Equal(Operation.LOWER, player.ChooseOperation());
+    }
+
+    [Fact]
+    public void Equals_WithNull_ReturnsFalse()
+    {
+        Player player = new Player();
+        Assert.False(player.Equals(null));
+    }
+
+    [Fact]
+    public void Equals_WithDifferentType_ReturnsFalse()
+    {
+        Player player = new Player();
+        Assert.False(player.Equals(new Cell(0, 0)));
+    }
+
+
 }
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