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# -*- coding: utf-8 -*-
"""Test the generic output formatter interface."""
from __future__ import unicode_literals
from decimal import Decimal
from textwrap import dedent
import pytest
from cli_helpers.tabular_output import format_output, TabularOutputFormatter
from cli_helpers.compat import binary_type, text_type
from cli_helpers.utils import strip_ansi
def test_tabular_output_formatter():
"""Test the TabularOutputFormatter class."""
headers = ['text', 'numeric']
data = [
["abc", Decimal(1)],
["defg", Decimal("11.1")],
["hi", Decimal("1.1")],
["Pablo\rß\n", 0],
]
expected = dedent("""\
+------------+---------+
| text | numeric |
+------------+---------+
| abc | 1 |
| defg | 11.1 |
| hi | 1.1 |
| Pablo\\rß\\n | 0 |
+------------+---------+"""
)
print(expected)
print("\n".join(TabularOutputFormatter().format_output(
iter(data), headers, format_name='ascii')))
assert expected == "\n".join(TabularOutputFormatter().format_output(
iter(data), headers, format_name='ascii'))
def test_tabular_format_output_wrapper():
"""Test the format_output wrapper."""
data = [['1', None], ['2', 'Sam'],
['3', 'Joe']]
headers = ['id', 'name']
expected = dedent('''\
+----+------+
| id | name |
+----+------+
| 1 | N/A |
| 2 | Sam |
| 3 | Joe |
+----+------+''')
assert expected == "\n".join(format_output(iter(data), headers, format_name='ascii',
missing_value='N/A'))
def test_additional_preprocessors():
"""Test that additional preprocessors are run."""
def hello_world(data, headers, **_):
def hello_world_data(data):
for row in data:
for i, value in enumerate(row):
if value == 'hello':
row[i] = "{}, world".format(value)
yield row
return hello_world_data(data), headers
data = [['foo', None], ['hello!', 'hello']]
headers = 'ab'
expected = dedent('''\
+--------+--------------+
| a | b |
+--------+--------------+
| foo | hello |
| hello! | hello, world |
+--------+--------------+''')
assert expected == "\n".join(TabularOutputFormatter().format_output(
iter(data), headers, format_name='ascii', preprocessors=(hello_world,),
missing_value='hello'))
def test_format_name_attribute():
"""Test the the format_name attribute be set and retrieved."""
formatter = TabularOutputFormatter(format_name='plain')
assert formatter.format_name == 'plain'
formatter.format_name = 'simple'
assert formatter.format_name == 'simple'
with pytest.raises(ValueError):
formatter.format_name = 'foobar'
def test_unsupported_format():
"""Test that TabularOutputFormatter rejects unknown formats."""
formatter = TabularOutputFormatter()
with pytest.raises(ValueError):
formatter.format_name = 'foobar'
with pytest.raises(ValueError):
formatter.format_output((), (), format_name='foobar')
def test_tabulate_ansi_escape_in_default_value():
"""Test that ANSI escape codes work with tabulate."""
data = [['1', None], ['2', 'Sam'],
['3', 'Joe']]
headers = ['id', 'name']
styled = format_output(iter(data), headers, format_name='psql',
missing_value='\x1b[38;5;10mNULL\x1b[39m')
unstyled = format_output(iter(data), headers, format_name='psql',
missing_value='NULL')
stripped_styled = [strip_ansi(s) for s in styled]
assert list(unstyled) == stripped_styled
def test_get_type():
"""Test that _get_type returns the expected type."""
formatter = TabularOutputFormatter()
tests = ((1, int), (2.0, float), (b'binary', binary_type),
('text', text_type), (None, type(None)), ((), text_type))
for value, data_type in tests:
assert data_type is formatter._get_type(value)
def test_provide_column_types():
"""Test that provided column types are passed to preprocessors."""
expected_column_types = (bool, float)
data = ((1, 1.0), (0, 2))
headers = ('a', 'b')
def preprocessor(data, headers, column_types=(), **_):
assert expected_column_types == column_types
return data, headers
format_output(data, headers, 'csv',
column_types=expected_column_types,
preprocessors=(preprocessor,))
def test_enforce_iterable():
"""Test that all output formatters accept iterable"""
formatter = TabularOutputFormatter()
loremipsum = 'lorem ipsum dolor sit amet consectetur adipiscing elit sed do eiusmod'.split(' ')
for format_name in formatter.supported_formats:
formatter.format_name = format_name
try:
formatted = next(formatter.format_output(
zip(loremipsum), ['lorem']))
except TypeError:
assert False, "{0} doesn't return iterable".format(format_name)
def test_all_text_type():
"""Test the TabularOutputFormatter class."""
data = [[1, u"", None, Decimal(2)]]
headers = ['col1', 'col2', 'col3', 'col4']
output_formatter = TabularOutputFormatter()
for format_name in output_formatter.supported_formats:
for row in output_formatter.format_output(iter(data), headers, format_name=format_name):
assert isinstance(row, text_type), "not unicode for {}".format(format_name)
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