forked from Rust-related/RustPython
73 lines
1.5 KiB
Python
73 lines
1.5 KiB
Python
|
|
from io import StringIO
|
|
|
|
def test_01():
|
|
"""
|
|
Test that the constructor and getvalue
|
|
method return expected values
|
|
"""
|
|
string = 'Test String 1'
|
|
f = StringIO()
|
|
f.write(string)
|
|
|
|
assert f.tell() == len(string)
|
|
assert f.getvalue() == string
|
|
|
|
def test_02():
|
|
"""
|
|
Test that the read method (no arg)
|
|
results the expected value
|
|
"""
|
|
string = 'Test String 2'
|
|
f = StringIO(string)
|
|
|
|
assert f.read() == string
|
|
assert f.read() == ''
|
|
|
|
def test_03():
|
|
"""
|
|
Tests that the read method (integer arg)
|
|
returns the expected value
|
|
"""
|
|
string = 'Test String 3'
|
|
f = StringIO(string)
|
|
|
|
assert f.read(1) == 'T'
|
|
assert f.read(1) == 'e'
|
|
assert f.read(1) == 's'
|
|
assert f.read(1) == 't'
|
|
|
|
def test_04():
|
|
"""
|
|
Tests that the read method increments the
|
|
cursor position and the seek method moves
|
|
the cursor to the appropriate position
|
|
"""
|
|
string = 'Test String 4'
|
|
f = StringIO(string)
|
|
|
|
assert f.read(4) == 'Test'
|
|
assert f.tell() == 4
|
|
assert f.seek(0) == 0
|
|
assert f.read(4) == 'Test'
|
|
|
|
def test_05():
|
|
"""
|
|
Tests readline
|
|
"""
|
|
string = 'Test String 6\nnew line is here\nfinished'
|
|
|
|
f = StringIO(string)
|
|
|
|
assert f.readline() == 'Test String 6\n'
|
|
assert f.readline() == 'new line is here\n'
|
|
assert f.readline() == 'finished'
|
|
assert f.readline() == ''
|
|
|
|
if __name__ == "__main__":
|
|
test_01()
|
|
test_02()
|
|
test_03()
|
|
test_04()
|
|
test_05()
|