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import io
import sys
from unittest.mock import patch
from csvkit.utilities.csvformat import CSVFormat, launch_new_instance
from tests.utils import CSVKitTestCase, EmptyFileTests, stdin_as_string
class TestCSVFormat(CSVKitTestCase, EmptyFileTests):
Utility = CSVFormat
def test_launch_new_instance(self):
with patch.object(sys, 'argv', [self.Utility.__name__.lower(), 'examples/dummy.csv']):
launch_new_instance()
def test_skip_lines(self):
self.assertLines(['--skip-lines', '3', '-D', '|', 'examples/test_skip_lines.csv'], [
'a|b|c',
'1|2|3',
])
def test_skip_header(self):
self.assertLines(['--skip-header', 'examples/dummy.csv'], [
'1,2,3',
])
def test_skip_header_no_header_row(self):
self.assertLines(['--no-header-row', '--skip-header', 'examples/no_header_row.csv'], [
'1,2,3',
])
def test_no_header_row(self):
self.assertLines(['--no-header-row', 'examples/no_header_row.csv'], [
'a,b,c',
'1,2,3',
])
def test_linenumbers(self):
self.assertLines(['--linenumbers', 'examples/dummy.csv'], [
'line_number,a,b,c',
'1,1,2,3',
])
def test_delimiter(self):
self.assertLines(['-D', '|', 'examples/dummy.csv'], [
'a|b|c',
'1|2|3',
])
def test_tabs(self):
self.assertLines(['-T', 'examples/dummy.csv'], [
'a\tb\tc',
'1\t2\t3',
])
def test_asv(self):
self.assertLines(['-A', 'examples/dummy.csv'], [
'a\x1fb\x1fc\x1e1\x1f2\x1f3\x1e',
], newline_at_eof=False)
def test_quotechar(self):
input_file = io.BytesIO(b'a,b,c\n1#2,3,4\n')
with stdin_as_string(input_file):
self.assertLines(['-Q', '#'], [
'a,b,c',
'#1##2#,3,4',
])
input_file.close()
def test_doublequote(self):
input_file = io.BytesIO(b'a\n"a ""quoted"" string"')
with stdin_as_string(input_file):
self.assertLines(['-P', '#', '-B'], [
'a',
'a #"quoted#" string',
])
input_file.close()
def test_escapechar(self):
input_file = io.BytesIO(b'a,b,c\n1"2,3,4\n')
with stdin_as_string(input_file):
self.assertLines(['-P', '#', '-U', '3'], [
'a,b,c',
'1#"2,3,4',
])
input_file.close()
def test_lineterminator(self):
self.assertLines(['-M', 'XYZ', 'examples/dummy.csv'], [
'a,b,cXYZ1,2,3XYZ',
], newline_at_eof=False)
class TestCSVFormatQuoteNonNumeric(CSVKitTestCase, EmptyFileTests):
Utility = CSVFormat
# New test compared to TestCSVFormat.
def test_locale(self):
self.assertLines(['-U', '2', '--locale', 'de_DE', 'examples/test_locale.csv'], [
'"a","b","c"',
'1.7,200000000,""',
])
def test_launch_new_instance(self):
with patch.object(sys, 'argv', [self.Utility.__name__.lower(), 'examples/dummy.csv']):
launch_new_instance()
def test_skip_lines(self):
self.assertLines(['-U', '2', '--skip-lines', '3', '-D', '|', 'examples/test_skip_lines.csv'], [
'"a"|"b"|"c"',
'1|2|3',
])
def test_skip_header(self):
self.assertLines(['-U', '2', '--skip-header', 'examples/dummy.csv'], [
'1,2,3',
])
def test_skip_header_no_header_row(self):
self.assertLines(['-U', '2', '--no-header-row', '--skip-header', 'examples/no_header_row.csv'], [
'1,2,3',
])
def test_no_header_row(self):
self.assertLines(['-U', '2', '--no-header-row', 'examples/no_header_row.csv'], [
'"a","b","c"',
'1,2,3',
])
def test_linenumbers(self):
self.assertLines(['-U', '2', '--linenumbers', 'examples/dummy.csv'], [
'"line_number","a","b","c"',
'1,1,2,3',
])
def test_delimiter(self):
self.assertLines(['-U', '2', '-D', '|', 'examples/dummy.csv'], [
'"a"|"b"|"c"',
'1|2|3',
])
def test_tabs(self):
self.assertLines(['-U', '2', '-T', 'examples/dummy.csv'], [
'"a"\t"b"\t"c"',
'1\t2\t3',
])
def test_asv(self):
self.assertLines(['-U', '2', '-A', 'examples/dummy.csv'], [
'"a"\x1f"b"\x1f"c"\x1e1\x1f2\x1f3\x1e',
], newline_at_eof=False)
def test_quotechar(self):
input_file = io.BytesIO(b'a,b,c\n1#2,3,4\n')
with stdin_as_string(input_file):
self.assertLines(['-U', '2', '-Q', '#'], [
'#a#,#b#,#c#',
'#1##2#,3,4',
])
input_file.close()
def test_doublequote(self):
input_file = io.BytesIO(b'a\n"a ""quoted"" string"')
with stdin_as_string(input_file):
self.assertLines(['-U', '2', '-P', '#', '-B'], [
'"a"',
'"a #"quoted#" string"',
])
input_file.close()
def test_escapechar(self):
input_file = io.BytesIO(b'a,b,c\n1"2,3,4\n')
with stdin_as_string(input_file):
self.assertLines(['-U', '2', '-P', '#', '-U', '3'], [
'a,b,c',
'1#"2,3,4',
])
input_file.close()
def test_lineterminator(self):
self.assertLines(['-U', '2', '-M', 'XYZ', 'examples/dummy.csv'], [
'"a","b","c"XYZ1,2,3XYZ',
], newline_at_eof=False)
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