Add project infrastructure: project config, license, README, tests, and

example env file

tests/test_game.py

@@ -0,0 +1,39 @@
+import pytest
+
+from treasure_island.game import choose, play
+
+
+def run(answers):
+    it = iter(answers)
+    out = []
+    won = play(ask=lambda _p: next(it), say=out.append)
+    return won, "\n".join(out)
+
+
+def test_winning_path():
+    won, out = run(["left", "wait", "yellow"])
+    assert won and "You Win" in out
+
+
+@pytest.mark.parametrize(
+    "answers, message",
+    [
+        (["right"], "hole"),
+        (["left", "swim"], "trout"),
+        (["left", "wait", "red"], "fire"),
+        (["left", "wait", "blue"], "beasts"),
+    ],
+)
+def test_losing_paths(answers, message):
+    won, out = run(answers)
+    assert not won and message in out and "Game Over" in out
+
+
+def test_input_is_case_insensitive_and_reasked():
+    won, _ = run(["LEFT", "huh", " Wait ", "Yellow"])
+    assert won
+
+
+def test_choose_rejects_invalid():
+    answers = iter(["x", "b"])
+    assert choose(lambda _p: next(answers), "?", ("a", "b")) == "b"