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-rw-r--r--tests/test_history.py100
1 files changed, 100 insertions, 0 deletions
diff --git a/tests/test_history.py b/tests/test_history.py
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+++ b/tests/test_history.py
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+from prompt_toolkit.eventloop import get_event_loop
+from prompt_toolkit.history import FileHistory, InMemoryHistory, ThreadedHistory
+
+
+def _call_history_load(history):
+ """
+ Helper: Call the history "load" method and return the result as a list of strings.
+ """
+ result = []
+
+ async def call_load():
+ async for item in history.load():
+ result.append(item)
+
+ get_event_loop().run_until_complete(call_load())
+ return result
+
+
+def test_in_memory_history():
+ history = InMemoryHistory()
+ history.append_string("hello")
+ history.append_string("world")
+
+ # Newest should yield first.
+ assert _call_history_load(history) == ["world", "hello"]
+
+ # Test another call.
+ assert _call_history_load(history) == ["world", "hello"]
+
+ history.append_string("test3")
+ assert _call_history_load(history) == ["test3", "world", "hello"]
+
+ # Passing history as a parameter.
+ history2 = InMemoryHistory(["abc", "def"])
+ assert _call_history_load(history2) == ["def", "abc"]
+
+
+def test_file_history(tmpdir):
+ histfile = tmpdir.join("history")
+
+ history = FileHistory(histfile)
+
+ history.append_string("hello")
+ history.append_string("world")
+
+ # Newest should yield first.
+ assert _call_history_load(history) == ["world", "hello"]
+
+ # Test another call.
+ assert _call_history_load(history) == ["world", "hello"]
+
+ history.append_string("test3")
+ assert _call_history_load(history) == ["test3", "world", "hello"]
+
+ # Create another history instance pointing to the same file.
+ history2 = FileHistory(histfile)
+ assert _call_history_load(history2) == ["test3", "world", "hello"]
+
+
+def test_threaded_file_history(tmpdir):
+ histfile = tmpdir.join("history")
+
+ history = ThreadedHistory(FileHistory(histfile))
+
+ history.append_string("hello")
+ history.append_string("world")
+
+ # Newest should yield first.
+ assert _call_history_load(history) == ["world", "hello"]
+
+ # Test another call.
+ assert _call_history_load(history) == ["world", "hello"]
+
+ history.append_string("test3")
+ assert _call_history_load(history) == ["test3", "world", "hello"]
+
+ # Create another history instance pointing to the same file.
+ history2 = ThreadedHistory(FileHistory(histfile))
+ assert _call_history_load(history2) == ["test3", "world", "hello"]
+
+
+def test_threaded_in_memory_history():
+ # Threaded in memory history is not useful. But testing it anyway, just to
+ # see whether everything plays nicely together.
+ history = ThreadedHistory(InMemoryHistory())
+ history.append_string("hello")
+ history.append_string("world")
+
+ # Newest should yield first.
+ assert _call_history_load(history) == ["world", "hello"]
+
+ # Test another call.
+ assert _call_history_load(history) == ["world", "hello"]
+
+ history.append_string("test3")
+ assert _call_history_load(history) == ["test3", "world", "hello"]
+
+ # Passing history as a parameter.
+ history2 = ThreadedHistory(InMemoryHistory(["abc", "def"]))
+ assert _call_history_load(history2) == ["def", "abc"]