tests: move more tests into core, more consistent tests running in tox

my/core/tests/auto_stats.py

@@ -1,6 +1,7 @@
 """
 Helper 'module' for test_guess_stats
 """
+
 from contextlib import contextmanager
 from dataclasses import dataclass
 from datetime import datetime, timedelta

my/core/tests/common.py

@@ -0,0 +1,12 @@
+import os
+
+import pytest
+
+
+V = 'HPI_TESTS_USES_OPTIONAL_DEPS'
+
+# TODO use it for serialize tests that are using simplejson/orjson?
+skip_if_uses_optional_deps = pytest.mark.skipif(
+    V not in os.environ,
+    reason=f'test only works when optional dependencies are installed. Set env variable {V}=true to override.',
+)

my/core/tests/test_cachew.py

@@ -0,0 +1,53 @@
+from .common import skip_if_uses_optional_deps as pytestmark
+
+from typing import List
+
+# TODO ugh, this is very messy.. need to sort out config overriding here
+
+
+def test_cachew() -> None:
+    from cachew import settings
+
+    settings.ENABLE = True  # by default it's off in tests (see conftest.py)
+
+    from my.core.common import mcachew
+
+    called = 0
+
+    # TODO ugh. need doublewrap or something to avoid having to pass parens
+    @mcachew()
+    def cf() -> List[int]:
+        nonlocal called
+        called += 1
+        return [1, 2, 3]
+
+    list(cf())
+    cc = called
+    # todo ugh. how to clean cache?
+    # assert called == 1 # precondition, to avoid turdes from previous tests
+
+    assert list(cf()) == [1, 2, 3]
+    assert called == cc
+
+
+def test_cachew_dir_none() -> None:
+    from cachew import settings
+
+    settings.ENABLE = True  # by default it's off in tests (see conftest.py)
+
+    from my.core.cachew import cache_dir
+    from my.core.common import mcachew
+    from my.core.core_config import _reset_config as reset
+
+    with reset() as cc:
+        cc.cache_dir = None
+        called = 0
+
+        @mcachew(cache_path=cache_dir() / 'ctest')
+        def cf() -> List[int]:
+            nonlocal called
+            called += 1
+            return [called, called, called]
+
+        assert list(cf()) == [1, 1, 1]
+        assert list(cf()) == [2, 2, 2]

my/core/tests/test_common.py

@@ -0,0 +1,54 @@
+from typing import Iterable, List
+import warnings
+
+from ..common import (
+    warn_if_empty,
+    _warn_iterable,
+)
+
+
+def test_warn_if_empty() -> None:
+    @warn_if_empty
+    def nonempty() -> Iterable[str]:
+        yield 'a'
+        yield 'aba'
+
+    @warn_if_empty
+    def empty() -> List[int]:
+        return []
+
+    # should be rejected by mypy!
+    # todo how to actually test it?
+    # @warn_if_empty
+    # def baad() -> float:
+    #     return 0.00
+
+    # reveal_type(nonempty)
+    # reveal_type(empty)
+
+    with warnings.catch_warnings(record=True) as w:
+        assert list(nonempty()) == ['a', 'aba']
+        assert len(w) == 0
+
+        eee = empty()
+        assert eee == []
+        assert len(w) == 1
+
+
+def test_warn_iterable() -> None:
+    i1: List[str] = ['a', 'b']
+    i2: Iterable[int] = iter([1, 2, 3])
+    # reveal_type(i1)
+    # reveal_type(i2)
+    x1 = _warn_iterable(i1)
+    x2 = _warn_iterable(i2)
+    # vvvv this should be flagged by mypy
+    # _warn_iterable(123)
+    # reveal_type(x1)
+    # reveal_type(x2)
+    with warnings.catch_warnings(record=True) as w:
+        assert x1 is i1  # should be unchanged!
+        assert len(w) == 0
+
+        assert list(x2) == [1, 2, 3]
+        assert len(w) == 0

my/tests/common.py

@@ -9,7 +9,7 @@
 
 skip_if_not_karlicoss = pytest.mark.skipif(
     V not in os.environ,
-    reason=f'test only works on @karlicoss data for now. Set evn variable {V}=true to override.',
+    reason=f'test only works on @karlicoss data for now. Set env variable {V}=true to override.',
 )
 
 

tox.ini

@@ -48,9 +48,11 @@ commands =
 
 # todo maybe also have core tests and misc tests? since ideally want them without dependencies
 [testenv:tests-all]
-# deliberately set to nonexistent path to check the fallback logic
-# TODO not sure if need it?
-setenv = MY_CONFIG = nonexistent
+setenv =
+    # deliberately set to nonexistent path to check the fallback logic
+    # TODO not sure if need it?
+    MY_CONFIG=nonexistent
+    HPI_TESTS_USES_OPTIONAL_DEPS=true
 commands =
     {envpython} -m pip install --use-pep517 -e .[testing]
 
@@ -81,7 +83,7 @@ commands =
         # importlib is the new suggested import-mode
         # without it test package names end up as core.tests.* instead of my.core.tests.*
         --import-mode=importlib     \
-        --pyargs {[testenv]package_name}.tests \
+        --pyargs {[testenv]package_name}.core {[testenv]package_name}.tests \
         {posargs}
 
     {envpython} -m pytest tests \