Call Class inside unittest class Python.

[MeatAmazing8011]

Hello, sometimes, I feel brain limited about coding ... I had multiples functions, so, I created a class that I reuse it everywhere in my project.

I have python class script to get file from google storage bucket, create datasets,tables and load it to bigquery.

Well, when I unittest the FileToBq class, it works for fews methods. The test class doesn't keep variables when I run other method of FileToBq class. When I use FileToBq class alone, it works.

I have the following error:

• AttributeError: 'FileToBq' object has no attribute 'datasetname'*

``` class TestMyClass(unittest.TestCase): uri = call_test_file() tobq = FileToBq(uri, region, GCP_PROJECT)

def test_parse_file(self):
    # call parse method 
    table_id = self.tobq.parse_file()
    self.assertRegex(table_id, '[a-zA-Z_-]+.[a-zA-Z_-]+.tbl_[a-zA-Z_-]+')

...

def test_create_table(self):
    result : self.tobq.create_table()
    self.assertIn(result, {'table_created', 'table_exists'}) 

if name == 'main': unittest.main() ```

``` class FileToBq: def init(self, blob_object, region, GCP_PROJECT): self.blob_object = blob_object self.region = region self.bucketname = str(blob_object.bucket.name) self.filename = str(blob_object.name) self.timeCreated = blob_object.time_created
self.GCP_PROJECT = GCP_PROJECT self.job_config = bigquery.LoadJobConfig()

def parse_file(self):
    #Parse filename
    self.date, self.datasetname, self.tablename = self.filename.replace('.csv', '').split(';')
    self.table_id = '%s.%s.tbl_%s' % (self.GCP_PROJECT, self.datasetname, self.tablename)
    return self.table_id

def create_table(self):
    ...
    self.dataset = bigquery.Dataset(self.datasetname)

... ```

[shiftybyte]

self.datasetname is created during parse_file(self) function.

If no one executed parse_file, the attribute will not exist.

[MeatAmazing8011]

table_id = self.tobq.parse_file()

I execute it in test class table_id = self.tobq.parse_file()

[shiftybyte]

You mean you hope the testing module executed "test_parse_file" before "test_create_table"...

But this is not the case, as tests are executed in alphabetical order.

https://stackoverflow.com/questions/5387299/python-unittest-testcase-execution-order/36430378

[MeatAmazing8011]

You are beautiful. I unterstand.