1 files changed, 20 insertions, 7 deletions
diff --git a/tests/qc/test_cells.py b/tests/qc/test_cells.py
index 5e25a9a..d4ef911 100644
--- a/tests/qc/test_cells.py
+++ b/tests/qc/test_cells.py
@@ -8,33 +8,46 @@ from quality_control.errors import InvalidCellValue
 from quality_control.average import valid_value as avg_valid_value
 from quality_control.standard_error import valid_value as se_valid_value
 
-@given(num_str=st.from_regex("^(?!([0-9]+\.([0-9]{3}|[0-9]{6,}))).*", fullmatch=True))
+@given(num_str=st.from_regex(
+    r"^(?!([0-9]+\.([0-9]{3}|[0-9]{6,}))).*", fullmatch=True))
 def test_cell_value_errors_with_invalid_inputs(num_str):
+    """Check that an error is raised for a cell with an invalid value."""
     with pytest.raises(InvalidCellValue):
         avg_valid_value(num_str)
     with pytest.raises(InvalidCellValue):
         se_valid_value(num_str)
 
-@given(num_str=st.from_regex("^[0-9]+\.([0-9]{1,2}|[0-9]{4,}$)", fullmatch=True))
+@given(num_str=st.from_regex(
+    r"^[0-9]+\.([0-9]{1,2}|[0-9]{4,}$)", fullmatch=True))
 def test_cell_average_value_errors_if_not_three_decimal_places(num_str):
+    """Check that an error is raised if the average value does not have 3 decimal places"""
     with pytest.raises(InvalidCellValue):
         avg_valid_value(num_str)
 
-@given(num_str=st.from_regex("^[0-9]+\.[0-9]{3}$", fullmatch=True))
+@given(num_str=st.from_regex(r"^[0-9]+\.[0-9]{3}$", fullmatch=True))
 def test_cell_average_value_pass_if_three_decimal_places(num_str):
+    """Check that there is no error if the average value has 3 decimal places."""
     processed = avg_valid_value(num_str)
     assert (
         isinstance(processed, float) and
-        processed == float(num_str)) 
+        processed == float(num_str))
 
-@given(num_str=st.from_regex("^[0-9]+\.([0-9]{0,5}$)", fullmatch=True))
+@given(num_str=st.from_regex(r"^[0-9]+\.([0-9]{0,5}$)", fullmatch=True))
 def test_cell_standard_error_value_errors_if_less_than_six_decimal_places(num_str):
+    """
+    Check that an error is raised if the standard error value does not have 6
+    decimal places
+    """
     with pytest.raises(InvalidCellValue):
         se_valid_value(num_str)
 
-@given(num_str=st.from_regex("^[0-9]+\.[0-9]{6,}$", fullmatch=True))
+@given(num_str=st.from_regex(r"^[0-9]+\.[0-9]{6,}$", fullmatch=True))
 def test_cell_standard_error_value_pass_if_six_or_more_decimal_places(num_str):
+    """
+    Check that there is no error if the standard error value has 3 decimal
+    places.
+    """
     processed = se_valid_value(num_str)
     assert (
         isinstance(processed, float) and
-        processed == float(num_str)) 
+        processed == float(num_str))