From d812fc961524d3dc2c9fe5e42bfd0ed3d87e8fec Mon Sep 17 00:00:00 2001
From: Guillaume Mollard <guillaume.mollard2@gmail.com>
Date: Mon, 8 Apr 2019 11:41:27 +0200
Subject: [PATCH] tests for the transitions file
---
tests/test_transitions.py | 64 ++++++++++++++++++++++++++++++++++++---
1 file changed, 59 insertions(+), 5 deletions(-)
diff --git a/tests/test_transitions.py b/tests/test_transitions.py
index 07bb05f1..a859f6b8 100644
--- a/tests/test_transitions.py
+++ b/tests/test_transitions.py
@@ -2,10 +2,64 @@
# -*- coding: utf-8 -*-
"""Tests for `flatland` package."""
+from flatland.core.transitions import RailEnvTransitions, GridTransitions
+import pytest
+
+
+def test_valid_railenv_transitions():
+ rail_env_trans = RailEnvTransitions()
+
+ # dir_map = {'N': 0,
+ # 'E': 1,
+ # 'S': 2,
+ # 'W': 3}
+
+ for i in range(2):
+ assert (rail_env_trans.get_transitions_from_orientation(int('1100110000110011', 2), i) == (1, 1, 0, 0))
+ assert(rail_env_trans.get_transitions_from_orientation(int('1100110000110011', 2), 2+i) == (0, 0, 1, 1))
+
+ no_transition_cell = int('0000000000000000', 2)
+
+ for i in range(4):
+ assert(rail_env_trans.get_transitions_from_orientation(no_transition_cell, i) == (0, 0, 0, 0))
+
+ # Facing south, going south
+ north_south_transition = rail_env_trans.set_transitions_from_orientation(no_transition_cell, 2, (0, 0, 1, 0))
+ assert(rail_env_trans.set_transition_from_orientation_to_direction(north_south_transition, 2, 2, 0) ==
+ no_transition_cell)
+ assert(rail_env_trans.get_transition_from_orientation_to_direction(north_south_transition, 2, 2))
+
+ # Facing north, going east
+ south_east_transition = rail_env_trans.set_transition_from_orientation_to_direction(no_transition_cell, 0, 1, 1)
+ assert(rail_env_trans.get_transition_from_orientation_to_direction(south_east_transition, 0, 1))
+
+ # The opposite transitions are not feasible
+ assert(not rail_env_trans.get_transition_from_orientation_to_direction(north_south_transition, 2, 0))
+ assert(not rail_env_trans.get_transition_from_orientation_to_direction(south_east_transition, 2, 1))
+
+ east_west_transition = rail_env_trans.rotate_transition(north_south_transition, 90)
+ north_west_transition = rail_env_trans.rotate_transition(south_east_transition, 180)
+
+ # Facing west, going west
+ assert(rail_env_trans.get_transition_from_orientation_to_direction(east_west_transition, 3, 3))
+ # Facing south, going west
+ assert(rail_env_trans.get_transition_from_orientation_to_direction(north_west_transition, 2, 3))
+
+ assert(south_east_transition == rail_env_trans.rotate_transition(south_east_transition, 360))
+
+
+def test_diagonal_transitions():
+ diagonal_trans_env = GridTransitions([], True)
+
+ # Facing north, going north-east
+ south_northeast_transition = int('01000000' + '0'*8*7, 2)
+ assert(diagonal_trans_env.get_transitions_from_orientation(south_northeast_transition, 0) ==
+ (0, 1, 0, 0, 0, 0, 0, 0))
+
+ # Allowing transition from north to southwest: Facing south, going southwest
+ north_southwest_transition = diagonal_trans_env.set_transitions_from_orientation(
+ int('0' *64, 2), 4, (0, 0, 0, 0, 0, 1, 0, 0))
+
+ assert(diagonal_trans_env.rotate_transition(south_northeast_transition, 180) == north_southwest_transition)
-def test_transition_example():
- """Test example Transition."""
- a = True
- b = True
- assert a == b
--
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