TST(transformers): tests for cast transformer functions

unittests/test_transformers.py

@@ -35,12 +35,13 @@ from unittest.mock import MagicMock, Mock, patch
 import linkahead as db
 import pytest
 import yaml
-from pytest import raises
-
 from caoscrawler.converters import Converter, ListElementConverter
 from caoscrawler.scanner import create_transformer_registry, scan_directory
 from caoscrawler.stores import GeneralStore
-from caoscrawler.transformer_functions import replace, split
+from caoscrawler.transformer_functions import (cast_to_bool, cast_to_float,
+                                               cast_to_int, cast_to_str,
+                                               replace, split)
+from pytest import raises
 
 UNITTESTDIR = Path(__file__).parent
 
@@ -163,3 +164,33 @@ def test_empty_functions_list(converter_registry):
 
     conv.apply_transformers(values, transformer_functions)
     assert values['b'] == "16_45"
+
+
+def test_cast_transformer_functions():
+    for val in ("True", "true", "False", "false"):
+        assert type(cast_to_bool(val, {})) == bool
+        if val[1] == "r":
+            assert cast_to_bool(val, {})
+        else:
+            assert not cast_to_bool(val, {})
+    for val_err in ("jaksdlfj", "0", 1):
+        with pytest.raises(ValueError):
+            cast_to_bool(val_err, {})
+    assert not cast_to_bool(False, {})
+    assert cast_to_bool(True, {})
+
+    assert cast_to_int("24", {}) == 24
+    assert cast_to_int(24.0, {}) == 24
+    assert cast_to_int(24, {}) == 24
+    with pytest.raises(ValueError):
+        cast_to_int("24dsf", {})
+        cast_to_int("24.0", {}) == 24
+
+    assert cast_to_float("24", {}) == 24.0
+    assert cast_to_float("24.0", {}) == 24.0
+    assert cast_to_float(24.0, {}) == 24.0
+    assert cast_to_float(24, {}) == 24.0
+    with pytest.raises(ValueError):
+        cast_to_float("24dsf", {})
+
+    assert cast_to_str(24, {}) == "24"