def test_sql_subtract_firsts(self):
"""Creates a database table, inserts a row into it and creates a database copy of the database table.
Queries last row_id, adds 1 to it and creates a Results object to pass it to the sql_insert_new_results. The
firsts variable is subtracted by one with the sql_subtract_firsts function.
Then queries the row with that row_id and checks that firsts value is minus 1.
"""
test_obj = TestVariables()
selected_database = test_obj.selected_database
selected_database_copy = test_obj.selected_database_copy
self.setUpDatabase()
self.setUpInsertRow(selected_database)
self.setUpDatabaseCopy()
row_id = self.setUpRowID(selected_database_copy) - 1
sql_m = SqlManager()
new_question_obj_list = sql_m.sql_get_database_content(selected_database_copy)
new_question_obj = new_question_obj_list[-1]
firsts_before_update = new_question_obj.firsts
sql_m.sql_subtract_firsts(row_id, selected_database_copy)
new_question_obj_list = sql_m.sql_get_database_content(selected_database_copy)
new_question_obj = new_question_obj_list[-1]
firsts_after_update = new_question_obj.firsts
firsts_should_right = 1
self.assertEqual(firsts_should_right, firsts_after_update)
self.assertNotEqual(firsts_before_update, firsts_after_update)
print("test_sql_subtract_firsts: successful")
self.tearDownTable(selected_database)
self.tearDownTable(selected_database_copy)
def next_question(self, row_id, question, right_answers, user_answers,
start_time, firsts):
"""Sets the score variable to 1 if right_answers and user_answers are equally.
Creates the time_track_variable to save how long user took to answer a question.
Adds or subtracts firsts variable accordingly to the score(add if score=0 add subtract if score=1).
Checks if any firsts variable is lower than one and deletes that row if true.
Passes all variables to the selected_results table.
Then call the start_testing function again.
"""
try:
if right_answers == user_answers:
score = 1
else:
score = 0
end_time = time.time()
time_track = round(((end_time - start_time) / 60), 2)
results = Results(row_id, question, right_answers, user_answers,
score, time_track, firsts)
results_list = [results]
sql_m = SqlManager()
sql_m.sql_insert_new_results(
results_list,
SettingVariables().selected_results_table)
if score == 1:
sql_m.sql_subtract_firsts(
row_id,
SettingVariables().selected_database_copy)
elif score == 0:
sql_m.sql_add_firsts(row_id,
SettingVariables().selected_database_copy)
if score == 1:
firsts = sql_m.sql_get_row(
SettingVariables().selected_database_copy,
row_id)[0].firsts
if firsts < 1:
sql_m.sql_delete_row(SettingVariables().selected_database_copy,
row_id)
except IndexError as ie:
print(str(ie) + " in next_question")
print(
"Possible reason might be that the database itself is empty or you choose an empty database_copy"
)
try:
self.testing_top.destroy()
self.start_testing(SettingVariables().selected_database_copy)
except Exception:
print("Another exception in next_question occurred")
