maint: improves between.py and length.py

- follows google's python style guide for docstrings
- adds `flake8-docstrings` as dev dependency
- update `README`'s workflow badge
- improves `between.py` and `length.py` scripts
- adapts associated test cases as well
- makes `_extremes.py` a private module

README.md

@@ -20,8 +20,8 @@ True
 - [Issue Tracker](http://github.com/kvesteri/validators/issues)
 - [Code](http://github.com/kvesteri/validators/)
 
-[bs-badge]: https://github.com/kvesteri/validators/workflows/GH/badge.svg
-[bs-link]: https://github.com/kvesteri/validators/actions/workflows/main.yml
+[bs-badge]: https://github.com/python-validators/validators/actions/workflows/main.yml/badge.svg
+[bs-link]: https://github.com/python-validators/validators/actions/workflows/main.yml
 [vs-badge]: https://img.shields.io/pypi/v/validators.svg
 [vs-link]: https://pypi.python.org/pypi/validators/
 [dw-badge]: https://img.shields.io/pypi/dm/validators.svg

README.rst

@@ -26,8 +26,8 @@ Resources
 - `Code <http://github.com/kvesteri/validators/>`_
 
 
-.. |Build Status| image:: https://github.com/kvesteri/validators/workflows/GH/badge.svg
-   :target: https://github.com/kvesteri/validators/actions/workflows/main.yml
+.. |Build Status| image:: https://github.com/python-validators/validators/actions/workflows/main.yml/badge.svg
+   :target: https://github.com/python-validators/validators/actions/workflows/main.yml
 .. |Version Status| image:: https://img.shields.io/pypi/v/validators.svg
    :target: https://pypi.python.org/pypi/validators/
 .. |Downloads| image:: https://img.shields.io/pypi/dm/validators.svg

pyproject.toml

@@ -31,6 +31,7 @@ python = "^3.9"
 bandit = "^1.7.4"
 black = "^23.1.0"
 flake8 = "^6.0.0"
+flake8-docstrings = "^1.7.0"
 pyright = "^1.1.293"
 pytest = "^7.2.1"
 setuptools = "^67.2.0"

setup.cfg

@@ -3,6 +3,7 @@
 
 [flake8]
 max-line-length = 100
+docstring-convention = google
 
 # [isort]
 # known_first_party = sqlalchemy_utils,tests

tests/test__extremes.py

@@ -0,0 +1,57 @@
+"""Test Extremes."""
+# -*- coding: utf-8 -*-
+
+# standard
+from typing import Any
+
+# external
+import pytest
+
+# project
+from validators._extremes import AbsMax, AbsMin
+
+abs_max = AbsMax()
+abs_min = AbsMin()
+
+
+@pytest.mark.parametrize(
+    ("value",),
+    [(None,), ("",), (12,), (abs_min,)],
+)
+def test_abs_max_is_greater_than_every_other_value(value: Any):
+    """Test if AbsMax is greater than every other value."""
+    assert value < abs_max
+    assert abs_max > value
+
+
+def test_abs_max_is_not_greater_than_itself():
+    """Test if AbsMax is not greater than itself."""
+    assert not (abs_max > abs_max)
+
+
+def test_other_comparison_methods_for_abs_max():
+    """Test other comparison methods for AbsMax."""
+    assert abs_max <= abs_max
+    assert abs_max == abs_max
+    assert abs_max == abs_max
+
+
+@pytest.mark.parametrize(
+    ("value",),
+    [(None,), ("",), (12,), (abs_max,)],
+)
+def test_abs_min_is_smaller_than_every_other_value(value: Any):
+    """Test if AbsMin is less than every other value."""
+    assert value > abs_min
+
+
+def test_abs_min_is_not_greater_than_itself():
+    """Test if AbsMin is not less than itself."""
+    assert not (abs_min < abs_min)
+
+
+def test_other_comparison_methods_for_abs_min():
+    """Test other comparison methods for AbsMin."""
+    assert abs_min <= abs_min
+    assert abs_min == abs_min
+    assert abs_min == abs_min

tests/test_between.py

@@ -1,33 +1,58 @@
+"""Test Between."""
 # -*- coding: utf-8 -*-
+
+# standard
+from datetime import datetime
+from typing import TypeVar
+
+# external
 import pytest
 
-import validators
+# project
+from validators import between, ValidationFailure
+
 
+T = TypeVar("T", int, float, str, datetime)
 
-@pytest.mark.parametrize(('value', 'min', 'max'), [
-    (12, 11, 13),
-    (12, None, 14),
-    (12, 11, None),
-    (12, 12, 12)
-])
-def test_returns_true_on_valid_range(value, min, max):
-    assert validators.between(value, min=min, max=max)
 
+@pytest.mark.parametrize(
+    ("value", "min_val", "max_val"),
+    [(12, 11, 13), (12, None, 14), (12, 11, None), (12, 12, 12)],
+)
+def test_returns_true_on_valid_range(value: T, min_val: T, max_val: T) -> None:
+    """Test returns true on valid range."""
+    assert between(value, min_val=min_val, max_val=max_val)
 
-@pytest.mark.parametrize(('value', 'min', 'max'), [
-    (12, 13, 12),
-    (12, None, None),
-])
-def test_raises_assertion_error_for_invalid_args(value, min, max):
+
+@pytest.mark.parametrize(
+    ("value", "min_val", "max_val"),
+    [(12, 13, 12), (12, None, None)],
+)
+def test_raises_assertion_error_for_invalid_args(value: T, min_val: T, max_val: T) -> None:
+    """Test raises assertion error for invalid args."""
     with pytest.raises(AssertionError):
-        assert validators.between(value, min=min, max=max)
+        assert between(value, min_val=min_val, max_val=max_val)
+
+
+@pytest.mark.parametrize(
+    ("value", "min_val", "max_val"),
+    [
+        (12, "13.5", datetime(1970, 1, 1)),
+        ("12", 20.5, "None"),
+        (datetime(1970, 1, 1), 20, "string"),
+    ],
+)
+def test_raises_type_error_for_invalid_args(value: T, min_val: T, max_val: T) -> None:
+    """Test raises type error for invalid args."""
+    with pytest.raises(TypeError):
+        assert between(value, min_val=min_val, max_val=max_val)
 
 
-@pytest.mark.parametrize(('value', 'min', 'max'), [
-    (12, 13, 14),
-    (12, None, 11),
-    (12, 13, None)
-])
-def test_returns_failed_validation_on_invalid_range(value, min, max):
-    result = validators.between(value, min=min, max=max)
-    assert isinstance(result, validators.ValidationFailure)
+@pytest.mark.parametrize(
+    ("value", "min_val", "max_val"),
+    [(12, 13, 14), (12, None, 11), (12, 13, None)],
+)
+def test_returns_failed_validation_on_invalid_range(value: T, min_val: T, max_val: T) -> None:
+    """Test returns failed validation on invalid range."""
+    result = between(value, min_val=min_val, max_val=max_val)
+    assert isinstance(result, ValidationFailure)

tests/test_length.py

@@ -1,37 +1,36 @@
+"""Test Length."""
 # -*- coding: utf-8 -*-
+
+# external
 import pytest
 
-import validators
+# project
+from validators import length, ValidationFailure
 
 
-@pytest.mark.parametrize(('value', 'min', 'max'), [
-    ('password', 2, 10),
-    ('password', None, 10),
-    ('password', 2, None),
-    ('password', 8, 8)
-])
-def test_returns_true_on_valid_length(value, min, max):
-    assert validators.length(value, min=min, max=max)
+@pytest.mark.parametrize(
+    ("value", "min_val", "max_val"),
+    [("password", 2, 10), ("password", 0, 10), ("password", 8, 8)],
+)
+def test_returns_true_on_valid_length(value: str, min_val: int, max_val: int):
+    """Test returns true on valid length."""
+    assert length(value, min_val=min_val, max_val=max_val)
 
 
-@pytest.mark.parametrize(('value', 'min', 'max'), [
-    ('something', 13, 12),
-    ('something', -1, None),
-    ('something', -1, None),
-    ('something', -3, -2)
-])
-def test_raises_assertion_error_for_invalid_args(value, min, max):
+@pytest.mark.parametrize(
+    ("value", "min_val", "max_val"),
+    [("something", 14, 12), ("something", -10, -20), ("something", 0, -2)],
+)
+def test_raises_assertion_error_for_invalid_args(value: str, min_val: int, max_val: int):
+    """Test raises assertion error for invalid args."""
     with pytest.raises(AssertionError):
-        assert validators.length(value, min=min, max=max)
-
-
-@pytest.mark.parametrize(('value', 'min', 'max'), [
-    ('something', 13, 14),
-    ('something', None, 6),
-    ('something', 13, None)
-])
-def test_returns_failed_validation_on_invalid_range(value, min, max):
-    assert isinstance(
-        validators.length(value, min=min, max=max),
-        validators.ValidationFailure
-    )
+        assert length(value, min_val=min_val, max_val=max_val)
+
+
+@pytest.mark.parametrize(
+    ("value", "min_val", "max_val"),
+    [("something", 13, 14), ("something", 0, 6), ("something", 14, 20)],
+)
+def test_returns_failed_validation_on_invalid_range(value: str, min_val: int, max_val: int):
+    """Test returns failed validation on invalid range."""
+    assert isinstance(length(value, min_val=min_val, max_val=max_val), ValidationFailure)