def test_calc_values(self):
"Test generator with calculated fields function"
def plus_one(record_dict):
return record_dict['test_field'] + 1
def plus_two(record_dict):
return record_dict['test_field'] + 2
# Define calculated fields using previously defined functions
calculated_field_dict = {'plus_one': plus_one,
'plus_two': plus_two
}
test_db = Database(self.TEST_DB_REF,
self.TEST_HOST,
self.TEST_PORT,
self.TEST_DBNAME,
self.TEST_USER,
self.TEST_PASSWORD
)
cached_result_set = test_db.submit_query(self.TEST_QUERY)
first_record_dict = list(cached_result_set.record_generator(calculated_field_dict))[0]
assert first_record_dict['test_field'] == 1, 'First field value should be 1'
assert first_record_dict['plus_one'] == 2, 'Second field value should be 2'
assert first_record_dict['plus_two'] == 3, 'Third field value should be 3'
def test_add_values(self):
"Test query function"
test_db = Database(self.TEST_DB_REF,
self.TEST_HOST,
self.TEST_PORT,
self.TEST_DBNAME,
self.TEST_USER,
self.TEST_PASSWORD
)
cached_result_set = test_db.submit_query(self.TEST_QUERY)
field_name = cached_result_set.field_names[0]
new_field_name = field_name + '_plus_one'
new_field_values = [field_value + 1 for field_value in cached_result_set.field_values[field_name]]
cached_result_set.add_values({new_field_name: new_field_values})
assert cached_result_set.record_count == 1, 'Modified result set should have exactly one row'
assert cached_result_set.field_count == 2, 'Modified result set should have exactly two fields'
assert cached_result_set.field_names[0] == 'test_field', 'First field name should be "test_field"'
assert cached_result_set.field_names[1] == 'test_field_plus_one', 'Second field name should be "test_field_plus_one"'
first_record_dict = list(cached_result_set.record_generator())[0]
assert first_record_dict['test_field'] == 1, 'First field value should be 1'
assert first_record_dict['test_field_plus_one'] == 2, 'Second field value should be 2'
assert len(cached_result_set.field_values) == 2, 'field_values dict property should have two items'
assert len(cached_result_set.field_names) == 2, 'field_names list property should have two items'
def test_execSQL(self):
"Test execSQL function"
test_db = Database(self.TEST_DB_REF,
self.TEST_HOST,
self.TEST_PORT,
self.TEST_DBNAME,
self.TEST_USER,
self.TEST_PASSWORD
)
cursor = test_db.execSQL(self.TEST_QUERY)
assert cursor.description is not None, 'No rows returned'
def test_query(self):
"Test query function"
test_db = Database(self.TEST_DB_REF,
self.TEST_HOST,
self.TEST_PORT,
self.TEST_DBNAME,
self.TEST_USER,
self.TEST_PASSWORD
)
cached_result_set = test_db.submit_query(self.TEST_QUERY)
assert cached_result_set.record_count == 1, 'Query should return exactly one row'
assert cached_result_set.field_count == 1, 'Query should return exactly one field'
assert cached_result_set.field_names[0] == 'test_field', 'Field name should be "test_field"'
assert list(cached_result_set.record_generator())[0]['test_field'] == 1, 'Field value should be 1'
assert len(cached_result_set.field_values) == 1, 'field_values dict property should have only one item'
def test_database(self):
"Test Database constructor"
test_db = Database(self.TEST_DB_REF,
self.TEST_HOST,
self.TEST_PORT,
self.TEST_DBNAME,
self.TEST_USER,
self.TEST_PASSWORD
)
test_db._default_cursor.execute(self.TEST_QUERY)
assert test_db._default_cursor.description is not None, 'No rows returned'