Jared Miller
0d0c142993
1000x1000 tile world generated deterministically from a seed using layered Perlin noise. Terrain derived from elevation: mountains, forests, grasslands, sand, water, with rivers traced downhill from peaks. ANSI-colored viewport centered on player. Command system with registry/dispatch, 8-direction movement (n/s/e/w + diagonals), look/l, quit/q. Players see arrival/departure messages. Set connect_maxwait=0.5 on telnetlib3 to avoid the 4s CHARSET negotiation timeout — MUD clients reject CHARSET immediately via MTTS.
266 lines
7.5 KiB
Python
266 lines
7.5 KiB
Python
"""Tests for the command system."""
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from unittest.mock import AsyncMock, MagicMock
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import pytest
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from mudlib import commands
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from mudlib.commands import look, movement
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from mudlib.player import Player
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@pytest.fixture
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def mock_writer():
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writer = MagicMock()
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writer.write = MagicMock()
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writer.drain = AsyncMock()
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return writer
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@pytest.fixture
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def mock_reader():
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return MagicMock()
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@pytest.fixture
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def mock_world():
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world = MagicMock()
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world.is_passable = MagicMock(return_value=True)
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# Create a 21x11 viewport filled with "."
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viewport = [["." for _ in range(21)] for _ in range(11)]
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world.get_viewport = MagicMock(return_value=viewport)
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return world
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@pytest.fixture
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def player(mock_reader, mock_writer):
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return Player(name="TestPlayer", x=5, y=5, reader=mock_reader, writer=mock_writer)
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# Test command registration
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def test_register_command():
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"""Test that commands can be registered."""
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async def test_handler(player, args):
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pass
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commands.register("test", test_handler)
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assert "test" in commands._registry
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def test_register_command_with_aliases():
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"""Test that command aliases work."""
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async def test_handler(player, args):
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pass
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commands.register("testcmd", test_handler, aliases=["tc", "t"])
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assert "testcmd" in commands._registry
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assert "tc" in commands._registry
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assert "t" in commands._registry
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assert commands._registry["testcmd"] == commands._registry["tc"]
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assert commands._registry["testcmd"] == commands._registry["t"]
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@pytest.mark.asyncio
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async def test_dispatch_routes_to_handler(player):
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"""Test that dispatch routes input to the correct handler."""
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called = False
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received_args = None
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async def test_handler(p, args):
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nonlocal called, received_args
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called = True
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received_args = args
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commands.register("testcmd", test_handler)
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await commands.dispatch(player, "testcmd arg1 arg2")
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assert called
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assert received_args == "arg1 arg2"
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@pytest.mark.asyncio
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async def test_dispatch_handles_unknown_command(player, mock_writer):
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"""Test that unknown commands give feedback."""
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await commands.dispatch(player, "unknowncommand")
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# Should have written some kind of error message
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assert mock_writer.write.called
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error_msg = mock_writer.write.call_args[0][0]
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assert "unknown" in error_msg.lower() or "not found" in error_msg.lower()
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@pytest.mark.asyncio
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async def test_dispatch_handles_empty_input(player):
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"""Test that empty input doesn't crash."""
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await commands.dispatch(player, "")
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await commands.dispatch(player, " ")
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# Test movement direction parsing
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@pytest.mark.parametrize(
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"direction,expected_delta",
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[
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("n", (0, -1)),
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("north", (0, -1)),
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("s", (0, 1)),
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("south", (0, 1)),
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("e", (1, 0)),
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("east", (1, 0)),
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("w", (-1, 0)),
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("west", (-1, 0)),
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("ne", (1, -1)),
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("northeast", (1, -1)),
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("nw", (-1, -1)),
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("northwest", (-1, -1)),
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("se", (1, 1)),
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("southeast", (1, 1)),
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("sw", (-1, 1)),
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("southwest", (-1, 1)),
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],
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)
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def test_direction_deltas(direction, expected_delta):
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"""Test that all direction commands map to correct deltas."""
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assert movement.DIRECTIONS[direction] == expected_delta
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@pytest.mark.asyncio
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async def test_movement_updates_position(player, mock_world):
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"""Test that movement updates player position when passable."""
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# Inject mock world into both movement and look modules
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movement.world = mock_world
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look.world = mock_world
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original_x, original_y = player.x, player.y
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await movement.move_north(player, "")
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assert player.x == original_x
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assert player.y == original_y - 1
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assert mock_world.is_passable.called
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@pytest.mark.asyncio
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async def test_movement_blocked_by_impassable_terrain(player, mock_world, mock_writer):
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"""Test that movement is blocked by impassable terrain."""
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mock_world.is_passable.return_value = False
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movement.world = mock_world
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original_x, original_y = player.x, player.y
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await movement.move_north(player, "")
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# Position should not change
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assert player.x == original_x
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assert player.y == original_y
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# Should send a message to the player
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assert mock_writer.write.called
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error_msg = mock_writer.write.call_args[0][0]
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assert "can't" in error_msg.lower() or "cannot" in error_msg.lower()
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@pytest.mark.asyncio
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async def test_movement_sends_departure_message(player, mock_world):
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"""Test that movement sends departure message to nearby players."""
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movement.world = mock_world
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look.world = mock_world
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# Create another player in the area
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other_writer = MagicMock()
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other_writer.write = MagicMock()
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other_writer.drain = AsyncMock()
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other_player = Player(
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name="OtherPlayer", x=5, y=4, reader=MagicMock(), writer=other_writer
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)
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# Register both players
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from mudlib.player import players
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players.clear()
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players[player.name] = player
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players[other_player.name] = other_player
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await movement.move_north(player, "")
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# Other player should have received a departure message
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# (We'll check this is called, exact message format is implementation detail)
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assert other_player.writer.write.called
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@pytest.mark.asyncio
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async def test_arrival_message_uses_opposite_direction(player, mock_world):
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"""Test that arrival messages use the opposite direction."""
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movement.world = mock_world
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look.world = mock_world
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# Create another player at the destination
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other_writer = MagicMock()
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other_writer.write = MagicMock()
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other_writer.drain = AsyncMock()
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other_player = Player(
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name="OtherPlayer", x=5, y=3, reader=MagicMock(), writer=other_writer
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)
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from mudlib.player import players
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players.clear()
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players[player.name] = player
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players[other_player.name] = other_player
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# Player at (5, 5) moves north to (5, 4)
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await movement.move_north(player, "")
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# Other player at (5, 3) should see arrival "from the south"
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# (Implementation will determine exact message format)
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assert other_player.writer.write.called
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# Test look command
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@pytest.mark.asyncio
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async def test_look_command_sends_viewport(player, mock_world):
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"""Test that look command sends the viewport to the player."""
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look.world = mock_world
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await look.cmd_look(player, "")
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assert mock_world.get_viewport.called
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assert player.writer.write.called
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@pytest.mark.asyncio
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async def test_look_command_shows_player_at_center(player, mock_world):
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"""Test that look command shows player @ at center."""
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look.world = mock_world
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await look.cmd_look(player, "")
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# Check that the output contains the @ symbol for the player
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output = "".join([call[0][0] for call in player.writer.write.call_args_list])
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assert "@" in output
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@pytest.mark.asyncio
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async def test_look_command_shows_other_players(player, mock_world):
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"""Test that look command shows other players as *."""
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look.world = mock_world
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# Create another player in the viewport
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other_player = Player(
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name="OtherPlayer",
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x=6,
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y=5,
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reader=MagicMock(),
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writer=MagicMock(),
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)
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from mudlib.player import players
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players.clear()
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players[player.name] = player
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players[other_player.name] = other_player
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await look.cmd_look(player, "")
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# Check that the output contains * for other players
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output = "".join([call[0][0] for call in player.writer.write.call_args_list])
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assert "*" in output
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