How can I create a fake file object in Python that contains text? I'm trying to write unit tests for a method that takes in a file object and retrieves the text via readlines() then do some text manipulation. Please note I can't create an actual file on the file system. The solution has to be compatible with Python 2.7.3.
How to create fake text file in Python
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3 Answers
In Python3
import io
fake_file = io.StringIO("your text goes here") # takes string as arg
fake_file.read() # you can use fake_file object to do whatever you want
In Python2
import io
fake_file = io.StringIO(u"your text goes here") # takes unicode as argument
fake_file.read() # you can use fake_file object to do whatever you want
For more info check docs here
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