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| # Copyright (c) Facebook, Inc. and its affiliates. | |
| import os | |
| import unittest | |
| import tempfile | |
| from itertools import count | |
| from detectron2.config import LazyConfig, LazyCall as L | |
| from omegaconf import DictConfig | |
| class TestLazyPythonConfig(unittest.TestCase): | |
| def setUp(self): | |
| self.root_filename = os.path.join(os.path.dirname(__file__), "root_cfg.py") | |
| def test_load(self): | |
| cfg = LazyConfig.load(self.root_filename) | |
| self.assertEqual(cfg.dir1a_dict.a, "modified") | |
| self.assertEqual(cfg.dir1b_dict.a, 1) | |
| self.assertEqual(cfg.lazyobj.x, "base_a_1") | |
| cfg.lazyobj.x = "new_x" | |
| # reload | |
| cfg = LazyConfig.load(self.root_filename) | |
| self.assertEqual(cfg.lazyobj.x, "base_a_1") | |
| def test_save_load(self): | |
| cfg = LazyConfig.load(self.root_filename) | |
| with tempfile.TemporaryDirectory(prefix="detectron2") as d: | |
| fname = os.path.join(d, "test_config.yaml") | |
| LazyConfig.save(cfg, fname) | |
| cfg2 = LazyConfig.load(fname) | |
| self.assertEqual(cfg2.lazyobj._target_, "itertools.count") | |
| self.assertEqual(cfg.lazyobj._target_, count) | |
| cfg2.lazyobj.pop("_target_") | |
| cfg.lazyobj.pop("_target_") | |
| # the rest are equal | |
| self.assertEqual(cfg, cfg2) | |
| def test_failed_save(self): | |
| cfg = DictConfig({"x": lambda: 3}, flags={"allow_objects": True}) | |
| with tempfile.TemporaryDirectory(prefix="detectron2") as d: | |
| fname = os.path.join(d, "test_config.yaml") | |
| LazyConfig.save(cfg, fname) | |
| self.assertTrue(os.path.exists(fname)) | |
| self.assertTrue(os.path.exists(fname + ".pkl")) | |
| def test_overrides(self): | |
| cfg = LazyConfig.load(self.root_filename) | |
| LazyConfig.apply_overrides(cfg, ["lazyobj.x=123", 'dir1b_dict.a="123"']) | |
| self.assertEqual(cfg.dir1b_dict.a, "123") | |
| self.assertEqual(cfg.lazyobj.x, 123) | |
| def test_invalid_overrides(self): | |
| cfg = LazyConfig.load(self.root_filename) | |
| with self.assertRaises(KeyError): | |
| LazyConfig.apply_overrides(cfg, ["lazyobj.x.xxx=123"]) | |
| def test_to_py(self): | |
| cfg = LazyConfig.load(self.root_filename) | |
| cfg.lazyobj.x = {"a": 1, "b": 2, "c": L(count)(x={"r": "a", "s": 2.4, "t": [1, 2, 3, "z"]})} | |
| cfg.list = ["a", 1, "b", 3.2] | |
| py_str = LazyConfig.to_py(cfg) | |
| expected = """cfg.dir1a_dict.a = "modified" | |
| cfg.dir1a_dict.b = 2 | |
| cfg.dir1b_dict.a = 1 | |
| cfg.dir1b_dict.b = 2 | |
| cfg.lazyobj = itertools.count( | |
| x={ | |
| "a": 1, | |
| "b": 2, | |
| "c": itertools.count(x={"r": "a", "s": 2.4, "t": [1, 2, 3, "z"]}), | |
| }, | |
| y="base_a_1_from_b", | |
| ) | |
| cfg.list = ["a", 1, "b", 3.2] | |
| """ | |
| self.assertEqual(py_str, expected) | |