Extended test_check_matching_problem_size with edge cases, made docstring conform to linting rules

Author: fjwillemsen

kernel_tuner/util.py

@@ -1117,7 +1117,7 @@ def compile_restrictions(
     return noncompiled_restrictions + compiled_restrictions
 
 def check_matching_problem_size(cached_problem_size, problem_size):
-    """ check if requested problem size matches the problem size in the cache"""
+    """Check the if requested problem size matches the problem size in the cache."""
     if not (np.array(cached_problem_size) == np.array(problem_size)).all():
         raise ValueError(f"Cannot load cache which contains results for different problem_size, cache: {cached_problem_size}, requested: {problem_size}")
 

test/test_util_functions.py

@@ -732,11 +732,16 @@ def test_check_matching_problem_size():
         check_matching_problem_size(42, 1000)
     with pytest.raises(ValueError):
         check_matching_problem_size([42,1], 42)
+    with pytest.raises(ValueError):
+        check_matching_problem_size([42,0], 42)
+    with pytest.raises(ValueError):
+        check_matching_problem_size(None, 42)
     # these should not error
     check_matching_problem_size(1000, (1000,))
     check_matching_problem_size([1000], 1000)
     check_matching_problem_size(1000, 1000)
     check_matching_problem_size(1000, [1000])
+    check_matching_problem_size([1000,], 1000)
 
 
 def test_convert_constraint_lambdas():