| import os |
| import unittest |
|
|
| from qlib.data import D |
| from qlib.data.dataset.handler import DataHandlerLP |
| from qlib.tests import TestAutoData |
| from qlib.utils.pickle_utils import restricted_pickle_load |
|
|
|
|
| class HandlerTests(TestAutoData): |
| def to_str(self, obj): |
| return "".join(str(obj).split()) |
|
|
| def test_handler_df(self): |
| df = D.features(["sh600519"], start_time="20190101", end_time="20190201", fields=["$close"]) |
| dh = DataHandlerLP.from_df(df) |
| print(dh.fetch()) |
| self.assertTrue(dh._data.equals(df)) |
| self.assertTrue(dh._infer is dh._data) |
| self.assertTrue(dh._learn is dh._data) |
| self.assertTrue(dh.data_loader._data is dh._data) |
| fname = "_handler_test.pkl" |
| dh.to_pickle(fname, dump_all=True) |
|
|
| with open(fname, "rb") as f: |
| dh_d = restricted_pickle_load(f) |
|
|
| self.assertTrue(dh_d._data.equals(df)) |
| self.assertTrue(dh_d._infer is dh_d._data) |
| self.assertTrue(dh_d._learn is dh_d._data) |
| |
| self.assertTrue("_data" not in dh_d.data_loader.__dict__.keys()) |
| os.remove(fname) |
|
|
|
|
| if __name__ == "__main__": |
| unittest.main() |
|
|
