diff --git a/tests/test_portal.py b/tests/test_portal.py
index 05d9d81..7f6063b 100644
--- a/tests/test_portal.py
+++ b/tests/test_portal.py
@@ -1,9 +1,73 @@
 """Tests for the Portal class."""
 
+import pytest
+
 from mudlib.object import Object
+from mudlib.player import Player
 from mudlib.portal import Portal
 from mudlib.thing import Thing
 from mudlib.zone import Zone
+from mudlib.zones import register_zone, zone_registry
+
+# --- fixtures ---
+
+
+@pytest.fixture
+def test_zone():
+    terrain = [["." for _ in range(10)] for _ in range(10)]
+    return Zone(
+        name="testzone",
+        width=10,
+        height=10,
+        toroidal=True,
+        terrain=terrain,
+    )
+
+
+@pytest.fixture
+def zone_a():
+    terrain = [["." for _ in range(10)] for _ in range(10)]
+    return Zone(
+        name="zone_a",
+        width=10,
+        height=10,
+        toroidal=True,
+        terrain=terrain,
+    )
+
+
+@pytest.fixture
+def zone_b():
+    terrain = [["." for _ in range(10)] for _ in range(10)]
+    return Zone(
+        name="zone_b",
+        width=10,
+        height=10,
+        toroidal=True,
+        terrain=terrain,
+    )
+
+
+@pytest.fixture
+def player(mock_reader, mock_writer, test_zone):
+    p = Player(
+        name="TestPlayer",
+        x=5,
+        y=5,
+        reader=mock_reader,
+        writer=mock_writer,
+        location=test_zone,
+    )
+    return p
+
+
+@pytest.fixture(autouse=True)
+def clear_zones():
+    """Clear zone registry before and after each test."""
+    zone_registry.clear()
+    yield
+    zone_registry.clear()
+
 
 # --- construction ---
 
@@ -46,3 +110,140 @@ def test_portal_rejects_things():
     p = Portal(name="portal")
     thing = Thing(name="sword")
     assert p.can_accept(thing) is False
+
+
+# --- portal display ---
+
+
+@pytest.mark.asyncio
+async def test_look_shows_portal_at_position(player, test_zone, mock_writer):
+    """look command shows portals at player position."""
+    from mudlib.commands.look import cmd_look
+
+    Portal(
+        name="shimmering doorway",
+        location=test_zone,
+        x=5,
+        y=5,
+        target_zone="elsewhere",
+        target_x=0,
+        target_y=0,
+    )
+
+    await cmd_look(player, "")
+    output = "".join([call[0][0] for call in mock_writer.write.call_args_list])
+    # New format: "You see {portal.name}."
+    assert "you see shimmering doorway." in output.lower()
+
+
+@pytest.mark.asyncio
+async def test_look_shows_multiple_portals(player, test_zone, mock_writer):
+    """look command shows multiple portals at player position."""
+    from mudlib.commands.look import cmd_look
+
+    Portal(
+        name="red portal",
+        location=test_zone,
+        x=5,
+        y=5,
+        target_zone="redzone",
+        target_x=0,
+        target_y=0,
+    )
+    Portal(
+        name="blue portal",
+        location=test_zone,
+        x=5,
+        y=5,
+        target_zone="bluezone",
+        target_x=0,
+        target_y=0,
+    )
+
+    await cmd_look(player, "")
+    output = "".join([call[0][0] for call in mock_writer.write.call_args_list])
+    assert "red portal" in output.lower()
+    assert "blue portal" in output.lower()
+
+
+@pytest.mark.asyncio
+async def test_look_no_portals_at_position(player, test_zone, mock_writer):
+    """look command doesn't show portals when none at position."""
+    from mudlib.commands.look import cmd_look
+
+    Portal(
+        name="distant portal",
+        location=test_zone,
+        x=8,
+        y=8,
+        target_zone="elsewhere",
+        target_x=0,
+        target_y=0,
+    )
+
+    await cmd_look(player, "")
+    output = "".join([call[0][0] for call in mock_writer.write.call_args_list])
+    # Should not mention portals when none are at player position
+    assert "portal" not in output.lower() or "distant portal" not in output.lower()
+
+
+# --- two-way portal transitions ---
+
+
+@pytest.mark.asyncio
+async def test_two_way_portal_transitions(mock_reader, mock_writer, zone_a, zone_b):
+    """Portals work bidirectionally between zones."""
+    from mudlib.commands.portals import cmd_enter
+
+    # Create player in zone_a at (2, 2)
+    player = Player(
+        name="TestPlayer",
+        x=2,
+        y=2,
+        reader=mock_reader,
+        writer=mock_writer,
+        location=zone_a,
+    )
+
+    # Register zones
+    register_zone("zone_a", zone_a)
+    register_zone("zone_b", zone_b)
+
+    # Create portal in zone A pointing to zone B
+    Portal(
+        name="doorway to B",
+        location=zone_a,
+        x=2,
+        y=2,
+        target_zone="zone_b",
+        target_x=7,
+        target_y=7,
+    )
+
+    # Create portal in zone B pointing to zone A
+    Portal(
+        name="doorway to A",
+        location=zone_b,
+        x=7,
+        y=7,
+        target_zone="zone_a",
+        target_x=2,
+        target_y=2,
+    )
+
+    # Player starts in zone A at (2, 2)
+    assert player.location is zone_a
+    assert player.x == 2
+    assert player.y == 2
+
+    # Enter portal to zone B
+    await cmd_enter(player, "doorway to B")
+    assert player.location is zone_b
+    assert player.x == 7
+    assert player.y == 7
+
+    # Enter portal back to zone A
+    await cmd_enter(player, "doorway to A")
+    assert player.location is zone_a
+    assert player.x == 2
+    assert player.y == 2
diff --git a/tests/test_portal_display.py b/tests/test_portal_display.py
deleted file mode 100644
index b36b0b8..0000000
--- a/tests/test_portal_display.py
+++ /dev/null
@@ -1,104 +0,0 @@
-"""Tests for portal display in look command."""
-
-import pytest
-
-from mudlib.player import Player
-from mudlib.portal import Portal
-from mudlib.zone import Zone
-
-
-@pytest.fixture
-def test_zone():
-    terrain = [["." for _ in range(10)] for _ in range(10)]
-    return Zone(
-        name="testzone",
-        width=10,
-        height=10,
-        toroidal=True,
-        terrain=terrain,
-    )
-
-
-@pytest.fixture
-def player(mock_reader, mock_writer, test_zone):
-    p = Player(
-        name="TestPlayer",
-        x=5,
-        y=5,
-        reader=mock_reader,
-        writer=mock_writer,
-        location=test_zone,
-    )
-    return p
-
-
-@pytest.mark.asyncio
-async def test_look_shows_portal_at_position(player, test_zone, mock_writer):
-    """look command shows portals at player position."""
-    from mudlib.commands.look import cmd_look
-
-    Portal(
-        name="shimmering doorway",
-        location=test_zone,
-        x=5,
-        y=5,
-        target_zone="elsewhere",
-        target_x=0,
-        target_y=0,
-    )
-
-    await cmd_look(player, "")
-    output = "".join([call[0][0] for call in mock_writer.write.call_args_list])
-    # New format: "You see {portal.name}."
-    assert "you see shimmering doorway." in output.lower()
-
-
-@pytest.mark.asyncio
-async def test_look_shows_multiple_portals(player, test_zone, mock_writer):
-    """look command shows multiple portals at player position."""
-    from mudlib.commands.look import cmd_look
-
-    Portal(
-        name="red portal",
-        location=test_zone,
-        x=5,
-        y=5,
-        target_zone="redzone",
-        target_x=0,
-        target_y=0,
-    )
-    Portal(
-        name="blue portal",
-        location=test_zone,
-        x=5,
-        y=5,
-        target_zone="bluezone",
-        target_x=0,
-        target_y=0,
-    )
-
-    await cmd_look(player, "")
-    output = "".join([call[0][0] for call in mock_writer.write.call_args_list])
-    assert "red portal" in output.lower()
-    assert "blue portal" in output.lower()
-
-
-@pytest.mark.asyncio
-async def test_look_no_portals_at_position(player, test_zone, mock_writer):
-    """look command doesn't show portals when none at position."""
-    from mudlib.commands.look import cmd_look
-
-    Portal(
-        name="distant portal",
-        location=test_zone,
-        x=8,
-        y=8,
-        target_zone="elsewhere",
-        target_x=0,
-        target_y=0,
-    )
-
-    await cmd_look(player, "")
-    output = "".join([call[0][0] for call in mock_writer.write.call_args_list])
-    # Should not mention portals when none are at player position
-    assert "portal" not in output.lower() or "distant portal" not in output.lower()
diff --git a/tests/test_two_way_portals.py b/tests/test_two_way_portals.py
deleted file mode 100644
index 8133f3e..0000000
--- a/tests/test_two_way_portals.py
+++ /dev/null
@@ -1,102 +0,0 @@
-"""Tests for two-way portal transitions."""
-
-import pytest
-
-from mudlib.player import Player
-from mudlib.portal import Portal
-from mudlib.zone import Zone
-from mudlib.zones import register_zone, zone_registry
-
-
-@pytest.fixture
-def zone_a():
-    terrain = [["." for _ in range(10)] for _ in range(10)]
-    return Zone(
-        name="zone_a",
-        width=10,
-        height=10,
-        toroidal=True,
-        terrain=terrain,
-    )
-
-
-@pytest.fixture
-def zone_b():
-    terrain = [["." for _ in range(10)] for _ in range(10)]
-    return Zone(
-        name="zone_b",
-        width=10,
-        height=10,
-        toroidal=True,
-        terrain=terrain,
-    )
-
-
-@pytest.fixture
-def player(mock_reader, mock_writer, zone_a):
-    p = Player(
-        name="TestPlayer",
-        x=2,
-        y=2,
-        reader=mock_reader,
-        writer=mock_writer,
-        location=zone_a,
-    )
-    return p
-
-
-@pytest.fixture(autouse=True)
-def clear_zones():
-    """Clear zone registry before and after each test."""
-    zone_registry.clear()
-    yield
-    zone_registry.clear()
-
-
-@pytest.mark.asyncio
-async def test_two_way_portal_transitions(player, zone_a, zone_b):
-    """Portals work bidirectionally between zones."""
-    from mudlib.commands.portals import cmd_enter
-
-    # Register zones
-    register_zone("zone_a", zone_a)
-    register_zone("zone_b", zone_b)
-
-    # Create portal in zone A pointing to zone B
-    Portal(
-        name="doorway to B",
-        location=zone_a,
-        x=2,
-        y=2,
-        target_zone="zone_b",
-        target_x=7,
-        target_y=7,
-    )
-
-    # Create portal in zone B pointing to zone A
-    Portal(
-        name="doorway to A",
-        location=zone_b,
-        x=7,
-        y=7,
-        target_zone="zone_a",
-        target_x=2,
-        target_y=2,
-    )
-
-    # Player starts in zone A at (2, 2)
-    assert player.location is zone_a
-    assert player.x == 2
-    assert player.y == 2
-
-    # Enter portal to zone B
-    await cmd_enter(player, "doorway to B")
-    assert player.location is zone_b
-    assert player.x == 7
-    assert player.y == 7
-
-    # Enter portal back to zone A
-    await cmd_enter(player, "doorway to A")
-    assert player.location is zone_a
-    assert player.x == 2
-    assert player.y == 2