Initial release: cd-browser v0.1.0

tests/test_history.py

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+from pathlib import Path
+
+import pytest
+
+from app.history import SessionHistory
+
+
+def test_visit_records_current_directory(tmp_path: Path) -> None:
+    history = SessionHistory()
+    first = tmp_path / "first"
+    first.mkdir()
+
+    visited = history.visit(first)
+
+    assert visited == first.resolve()
+    assert history.current == first.resolve()
+    assert history.entries() == (first.resolve(),)
+
+
+def test_visit_drops_forward_history_after_new_branch(tmp_path: Path) -> None:
+    history = SessionHistory()
+    first = tmp_path / "first"
+    second = tmp_path / "second"
+    third = tmp_path / "third"
+    for path in (first, second, third):
+        path.mkdir()
+
+    history.visit(first)
+    history.visit(second)
+    assert history.back() == first.resolve()
+
+    history.visit(third)
+
+    assert history.entries() == (first.resolve(), third.resolve())
+    assert history.current == third.resolve()
+    assert history.forward() is None
+
+
+def test_visit_does_not_duplicate_current_entry(tmp_path: Path) -> None:
+    history = SessionHistory()
+    directory = tmp_path / "directory"
+    directory.mkdir()
+
+    history.visit(directory)
+    history.visit(directory)
+
+    assert history.entries() == (directory.resolve(),)
+
+
+def test_back_and_forward_move_through_history(tmp_path: Path) -> None:
+    history = SessionHistory()
+    first = tmp_path / "first"
+    second = tmp_path / "second"
+    for path in (first, second):
+        path.mkdir()
+
+    history.visit(first)
+    history.visit(second)
+
+    assert history.back() == first.resolve()
+    assert history.back() is None
+    assert history.forward() == second.resolve()
+    assert history.forward() is None
+
+
+def test_select_moves_to_specific_history_entry(tmp_path: Path) -> None:
+    history = SessionHistory()
+    first = tmp_path / "first"
+    second = tmp_path / "second"
+    for path in (first, second):
+        path.mkdir()
+
+    history.visit(first)
+    history.visit(second)
+
+    assert history.select(0) == first.resolve()
+    assert history.current == first.resolve()
+
+
+def test_select_raises_for_invalid_index() -> None:
+    history = SessionHistory()
+
+    with pytest.raises(IndexError):
+        history.select(0)