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test_text.py
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test_text.py
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# -*- coding: utf-8 -*-
from __future__ import absolute_import, print_function, division
from tempfile import NamedTemporaryFile
import gzip
import os
import io
from petl.test.helpers import ieq, eq_
from petl.io.text import fromtext, totext
def test_fromtext():
# initial data
f = NamedTemporaryFile(delete=False, mode='wb')
f.write(b'foo\tbar\n')
f.write(b'a\t1\n')
f.write(b'b\t2\n')
f.write(b'c\t3\n')
f.close()
actual = fromtext(f.name, encoding='ascii')
expect = (('lines',),
('foo\tbar',),
('a\t1',),
('b\t2',),
('c\t3',))
ieq(expect, actual)
ieq(expect, actual) # verify can iterate twice
def test_fromtext_lineterminators():
data = [b'foo,bar',
b'a,1',
b'b,2',
b'c,2']
expect = (('lines',),
('foo,bar',),
('a,1',),
('b,2',),
('c,2',))
for lt in b'\r', b'\n', b'\r\n':
f = NamedTemporaryFile(mode='wb', delete=False)
f.write(lt.join(data))
f.close()
actual = fromtext(f.name, encoding='ascii')
ieq(expect, actual)
def test_totext():
# exercise function
table = (('foo', 'bar'),
('a', 1),
('b', 2),
('c', 2))
f = NamedTemporaryFile(delete=False)
f.close()
prologue = (
"{| class='wikitable'\n"
"|-\n"
"! foo\n"
"! bar\n"
)
template = (
"|-\n"
"| {foo}\n"
"| {bar}\n"
)
epilogue = "|}\n"
totext(table, f.name, encoding='ascii', template=template,
prologue=prologue, epilogue=epilogue)
# check what it did
with io.open(f.name, mode='rt', encoding='ascii', newline='') as o:
actual = o.read()
expect = (
"{| class='wikitable'\n"
"|-\n"
"! foo\n"
"! bar\n"
"|-\n"
"| a\n"
"| 1\n"
"|-\n"
"| b\n"
"| 2\n"
"|-\n"
"| c\n"
"| 2\n"
"|}\n"
)
eq_(expect, actual)
def test_fromtext_gz():
# initial data
f = NamedTemporaryFile(delete=False)
f.close()
fn = f.name + '.gz'
os.rename(f.name, fn)
f = gzip.open(fn, 'wb')
try:
f.write(b'foo\tbar\n')
f.write(b'a\t1\n')
f.write(b'b\t2\n')
f.write(b'c\t3\n')
finally:
f.close()
actual = fromtext(fn, encoding='ascii')
expect = (('lines',),
('foo\tbar',),
('a\t1',),
('b\t2',),
('c\t3',))
ieq(expect, actual)
ieq(expect, actual) # verify can iterate twice
def test_totext_gz():
# exercise function
table = (('foo', 'bar'),
('a', 1),
('b', 2),
('c', 2))
f = NamedTemporaryFile(delete=False)
f.close()
fn = f.name + '.gz'
os.rename(f.name, fn)
prologue = (
"{| class='wikitable'\n"
"|-\n"
"! foo\n"
"! bar\n"
)
template = (
"|-\n"
"| {foo}\n"
"| {bar}\n"
)
epilogue = "|}\n"
totext(table, fn, encoding='ascii', template=template, prologue=prologue,
epilogue=epilogue)
# check what it did
o = gzip.open(fn, 'rb')
try:
actual = o.read()
expect = (
b"{| class='wikitable'\n"
b"|-\n"
b"! foo\n"
b"! bar\n"
b"|-\n"
b"| a\n"
b"| 1\n"
b"|-\n"
b"| b\n"
b"| 2\n"
b"|-\n"
b"| c\n"
b"| 2\n"
b"|}\n"
)
eq_(expect, actual)
finally:
o.close()