pyodbc.connect() gives an error when executing it with pytest

[javierhersan]

When executing the following code inside of my test function

conn = pyodbc.connect(connection_string)

It throws the following error:

pyodbc.Error: ('HY000', 'The driver did not supply an error!')

The connection string of my tests is the same as in my project.

connection_string = 'DRIVER={ODBC Driver 18 for SQL Server};SERVER=tcp:database.windows.net;PORT=1433;DATABASE=database;UID=admin;PWD=pass;'

The test project also uses the same virtual environment with the same dependencies.

What happens here?

[v-chojas]

You can start by providing more information about your environment, and preferably an ODBC trace too.