Programmiererforum

Ich bekomme ein seltsames Problem, das ein sehr einfaches Export -Parsing -Programm testen. Das Programm liest die Ausgabeergebnisse verschiedener Programmenarten (die alle Exporte in einem anderen Format erzeugen) und protokolliert die Ergebnisse in einer Datenbank. Ich habe mehrere Unterklassen von Iexport , von denen eine KeyenceExport :
istimport os

from IExport import IExport
from Lib import get_file_lines

class KeyenceExport(IExport):
_file_path: str
_job_number: str
_part_number: str
_sequence_numbers: list[int] = []
_file_lines: list[str] = []

def __init__(self, file_path: str):
super().__init__(file_path)
self._file_path = file_path
self._file_lines = get_file_lines(file_path)
self._parse_file_lines()

def _parse_file_lines(self):
line_count = len(self._file_lines)
self._part_number = self._file_lines[4].split(",")[0]
if "_" in self._part_number:
self._part_number = self._part_number.split("_")[0]
self._job_number = self._file_lines[4].split(",")[5]

for i in range(4, line_count):
line = self._file_lines[i]
if line == "":
continue
seq_nbr = line.split(",")[2]
self._sequence_numbers.append(int(seq_nbr))

@property
def file_path(self) -> str:
return self._file_path

@property
def job_number(self) -> str:
return self._job_number

@property
def part_number(self) -> str:
return self._part_number

@property
def sequence_numbers(self) -> list[int]:
return self._sequence_numbers

@property
def file_name(self) -> str:
return os.path.basename(self._file_path)
< /code>
Hier sind die beiden Testdateien:
SinglePartKeyence.csv
Program name,Measurement time,Serial Counter,Judgment,Inspection Type,Job #,Employee #,Machine,Operation,INSP_2,INSP_3,INSP_4,INSP_5,INSP_6,INSP_7,INSP_8.1,INSP_9,INSP_10A,INSP_10B,INSP_11A,INSP_11B
Design value,,,,,,,,,0.00000,3.81300,0.75000,0.25000,0.38000,0.31000,0.17900,0.05000,0.12700,0.12700,0.12500,0.12500
Upper Limit,,,,,,,,,0.00100,0.00500,0.01000,0.01000,0.00500,0.00500,0.00000,0.00500,0.00500,0.00500,0.00500,0.00500
Lower Limit,,,,,,,,,0.00000,-0.00500,-0.01000,-0.01000,-0.00500,-0.00500,-0.00150,-0.00500,-0.00500,-0.00500,-0.00500,-0.00500
3000791_B,6/14/2025 9:55:14 AM,0007,OK,IN PROCESS,29831000-014,4544,7804-06,10,0.00044,3.81375,0.75221,0.25177,0.38052,0.31417,0.17801,0.05203,0.12848,0.12844,0.12489,0.12477
< /code>
MultiPartKeyence.csv
Program name,Measurement time,Serial Counter,Judgment,Inspection Type,Job #,Employee #,Machine,Operation,INSP_42
Design value,,,,,,,,,0.025000
Upper Limit,,,,,,,,,1.000000
Lower Limit,,,,,,,,,-1.000000
100165732_E,7/1/2025 12:13:39 AM,0426,OK,IN PROCESS,29781600-005,4701,7803-25,10,0.025865
100165732_E,7/1/2025 12:13:39 AM,0427,OK,IN PROCESS,29781600-005,4701,7803-25,10,0.025735
< /code>
Ich habe eine conftest.py, die diese beiden Leuchten enthält: < /p>
@pytest.fixture
def keyence_filepath(reset_dir):
keyence_filepath = path.join(reset_dir, "SinglePartKeyence.csv")
return keyence_filepath

@pytest.fixture
def keyence_multi_part_filepath(reset_dir):
keyence_filepath = path.join(reset_dir, "Multi_PartKeyence.csv")
return keyence_filepath
< /code>
Und dann habe ich die Tests selbst: < /p>
def test_single_part_keyence(keyence_filepath: str):
export = KeyenceExport(keyence_filepath)
assert export.job_number == "29831000-014"
assert export.file_name == "SinglePartKeyence.csv"
assert export.part_number == "3000791"
assert export.sequence_numbers == [7]

def test_multi_part_keyence(keyence_multi_part_filepath: str):
export = KeyenceExport(keyence_multi_part_filepath)
assert export.job_number == "29781600-005"
assert export.file_name == "Multi_PartKeyence.csv"
assert export.part_number == "100165732"
assert export.sequence_numbers == [426, 427]
< /code>
Wenn ich die Tests selbst durchführe, dann passieren beide. Wenn ich sie zusammenführe (ich benutze Pycharm übrigens, also bedeutet "zusammen", dass ich alle Tests in dieser Datei ausführe), dann scheitern sie.============================= test session starts =============================
collecting ... collected 2 items

test/test_KeyenceExport.py::test_single_part_keyence
test/test_KeyenceExport.py::test_multi_part_keyence

========================= 1 failed, 1 passed in 0.09s =========================
PASSED [ 50%]FAILED [100%]
test\test_KeyenceExport.py:11 (test_multi_part_keyence)
[7, 426, 427] != [426, 427]

Expected :[426, 427]
Actual :[7, 426, 427]
< /code>
Aus irgendeinem seltsamen Grund wird die Sequenznummer vom ersten Test zum zweiten hinzugefügt, obwohl jeder Test eine separate Instanz der KeyenceExport -Klasse aufnimmt. Was zum Teufel ist hier los?