1 files changed, 37 insertions, 0 deletions
diff --git a/go/game/cardImplementations_test.go b/go/game/cardImplementations_test.go
index 43d69b76..ff41a752 100644
--- a/go/game/cardImplementations_test.go
+++ b/go/game/cardImplementations_test.go
@@ -419,3 +419,40 @@ symbols:
 		t.Fatal("sailor not adding movement to fisher")
 	}
 }
+
+func TestPierce(t *testing.T) {
+	s, _, p, _ := newMockState()
+	knight := s.addNewUnit(NewCard("base/knight"), Position{0, 0}, p)
+	archer := s.addNewUnit(NewCard("base/archer"), Position{1, 0}, p)
+
+	pa := NewPlayAction(p, NewCard("magic/pierce!"))
+	pa.Target().AddSelection(knight)
+	s.ResolveAction(pa)
+
+	x, err := knight.XEffect("armor")
+	if err != nil {
+		t.Fatal("unexpected", err)
+	}
+	if x != 0 {
+		t.Fatal("expected 0 armor")
+	}
+
+	pa.Target().AddSelection(archer)
+	s.ResolveAction(pa)
+	x, err = archer.XEffect("armor")
+	if err != nil {
+		t.Fatal("unexpected", err)
+	}
+	if x != -1 {
+		t.Fatal("expected -1 armor")
+	}
+
+	s.fight(knight, archer)
+	if knight.Damage() != 1 {
+		t.Fatal("Knight did not take 1 damage")
+	}
+
+	if archer.Damage() != 2 {
+		t.Fatal("Archer did not take 2 damage")
+	}
+}