Created
December 7, 2016 18:04
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Redirected stdout mock, mostly for testing purposes
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import sys | |
import io | |
class RedirectedStdout: | |
def __init__(self): | |
self.old_stdout = sys.stdout | |
self.file = io.StringIO() | |
def __enter__(self): | |
sys.stdout = self.file | |
return self | |
def __exit__(self, *args): | |
sys.stdout = self.old_stdout | |
def get_value(self): | |
self.file.seek(0, io.SEEK_SET) | |
contents = self.file.read() | |
self.file.seek(0, io.SEEK_END) | |
return contents | |
def test_rso(): | |
def foo(): | |
print("Ala ma kota.") | |
print("A Tomek ma dwa psy.") | |
with RedirectedStdout() as so: | |
foo() | |
assert so.get_value() == "Ala ma kota.\nA Tomek ma dwa psy.\n" | |
assert so.get_value() == "Ala ma kota.\nA Tomek ma dwa psy.\n" | |
foo() | |
assert so.get_value() == "Ala ma kota.\nA Tomek ma dwa psy.\nAla ma kota.\nA Tomek ma dwa psy.\n" |
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