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import StringIO
import numpy as np
from numpy.lib._iotools import LineSplitter, NameValidator, StringConverter
from numpy.testing import *
class TestLineSplitter(TestCase):
"Tests the LineSplitter class."
#
def test_no_delimiter(self):
"Test LineSplitter w/o delimiter"
strg = " 1 2 3 4 5 # test"
test = LineSplitter()(strg)
assert_equal(test, ['1', '2', '3', '4', '5'])
test = LineSplitter('')(strg)
assert_equal(test, ['1', '2', '3', '4', '5'])
def test_space_delimiter(self):
"Test space delimiter"
strg = " 1 2 3 4 5 # test"
test = LineSplitter(' ')(strg)
assert_equal(test, ['1', '2', '3', '4', '', '5'])
test = LineSplitter(' ')(strg)
assert_equal(test, ['1 2 3 4', '5'])
def test_tab_delimiter(self):
"Test tab delimiter"
strg= " 1\t 2\t 3\t 4\t 5 6"
test = LineSplitter('\t')(strg)
assert_equal(test, ['1', '2', '3', '4', '5 6'])
strg= " 1 2\t 3 4\t 5 6"
test = LineSplitter('\t')(strg)
assert_equal(test, ['1 2', '3 4', '5 6'])
def test_other_delimiter(self):
"Test LineSplitter on delimiter"
strg = "1,2,3,4,,5"
test = LineSplitter(',')(strg)
assert_equal(test, ['1', '2', '3', '4', '', '5'])
#
strg = " 1,2,3,4,,5 # test"
test = LineSplitter(',')(strg)
assert_equal(test, ['1', '2', '3', '4', '', '5'])
def test_constant_fixed_width(self):
"Test LineSplitter w/ fixed-width fields"
strg = " 1 2 3 4 5 # test"
test = LineSplitter(3)(strg)
assert_equal(test, ['1', '2', '3', '4', '', '5', ''])
#
strg = " 1 3 4 5 6# test"
test = LineSplitter(20)(strg)
assert_equal(test, ['1 3 4 5 6'])
#
strg = " 1 3 4 5 6# test"
test = LineSplitter(30)(strg)
assert_equal(test, ['1 3 4 5 6'])
def test_variable_fixed_width(self):
strg = " 1 3 4 5 6# test"
test = LineSplitter((3,6,6,3))(strg)
assert_equal(test, ['1', '3', '4 5', '6'])
#
strg = " 1 3 4 5 6# test"
test = LineSplitter((6,6,9))(strg)
assert_equal(test, ['1', '3 4', '5 6'])
#-------------------------------------------------------------------------------
class TestNameValidator(TestCase):
#
def test_case_sensitivity(self):
"Test case sensitivity"
names = ['A', 'a', 'b', 'c']
test = NameValidator().validate(names)
assert_equal(test, ['A', 'a', 'b', 'c'])
test = NameValidator(case_sensitive=False).validate(names)
assert_equal(test, ['A', 'A_1', 'B', 'C'])
test = NameValidator(case_sensitive='upper').validate(names)
assert_equal(test, ['A', 'A_1', 'B', 'C'])
test = NameValidator(case_sensitive='lower').validate(names)
assert_equal(test, ['a', 'a_1', 'b', 'c'])
#
def test_excludelist(self):
"Test excludelist"
names = ['dates', 'data', 'Other Data', 'mask']
validator = NameValidator(excludelist = ['dates', 'data', 'mask'])
test = validator.validate(names)
assert_equal(test, ['dates_', 'data_', 'Other_Data', 'mask_'])
#-------------------------------------------------------------------------------
class TestStringConverter(TestCase):
"Test StringConverter"
#
def test_creation(self):
"Test creation of a StringConverter"
converter = StringConverter(int, -99999)
assert_equal(converter._status, 1)
assert_equal(converter.default, -99999)
#
def test_upgrade(self):
"Tests the upgrade method."
converter = StringConverter()
assert_equal(converter._status, 0)
converter.upgrade('0')
assert_equal(converter._status, 1)
converter.upgrade('0.')
assert_equal(converter._status, 2)
converter.upgrade('0j')
assert_equal(converter._status, 3)
converter.upgrade('a')
assert_equal(converter._status, len(converter._mapper)-1)
#
def test_missing(self):
"Tests the use of missing values."
converter = StringConverter(missing_values=('missing','missed'))
converter.upgrade('0')
assert_equal(converter('0'), 0)
assert_equal(converter(''), converter.default)
assert_equal(converter('missing'), converter.default)
assert_equal(converter('missed'), converter.default)
try:
converter('miss')
except ValueError:
pass
#
def test_upgrademapper(self):
"Tests updatemapper"
try:
import dateutil.parser
import datetime
dateparser = dateutil.parser.parse
StringConverter.upgrade_mapper(dateparser, datetime.date(2000,1,1))
convert = StringConverter(dateparser, datetime.date(2000, 1, 1))
test = convert('2001-01-01')
assert_equal(test, datetime.datetime(2001, 01, 01, 00, 00, 00))
except ImportError:
pass
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