def test_dict():
import math
assert almost({'pi': math.pi, 'sqrt(2)': math.sqrt(2)}) == \
{'pi': 3.142, 'sqrt(2)': 1.414}
assert almost({'pi': math.pi, 'text': 'abc', 'sqrt(2)': math.sqrt(2)}) == \
{'pi': 3.142, 'text': 'abc', 'sqrt(2)': 1.414}
assert almost({'pi': math.pi, 'text': 'abc', 'sqrt(2)': math.sqrt(2)}) != \
{'pi': 3.142, 'text': 'def', 'sqrt(2)': 1.414}
def test_recursive_list():
import math
assert almost([[math.pi], [math.sqrt(2)]]) == [[3.142], [1.414]]
assert almost([[math.pi], ['abc', math.sqrt(2)]]) == \
[[3.142], ['abc', 1.414]]
assert almost([[math.pi, 'abc'], [math.sqrt(2)]]) != \
[[3.142, 'def'], [1.414]]
assert almost([[1], [2]]) <= [[1], [2]]
assert not (almost([[1], [2]]) < [[1], [2]])
assert almost([[1], [2]]) >= [[1], [2]]
assert not (almost([[1], [2]]) > [[1], [2]])
assert not (almost([[1], [2]]) != [[1], [2]])
def test_special_number():
assert almost(float('inf')) == float('inf')
assert almost(float('nan')) == float('nan')
assert almost(float('inf')) != float('nan')
assert almost(float('inf')) != 12345
assert almost(float('nan')) != 12345
assert almost(float('-inf')) == -float('inf')
try:
assert almost(float('nan')) == float('-nan')
except ValueError:
if sys.subversion[0] != 'Jython':
raise
assert almost(float('nan')) == -float('nan')
def test_lt_gt():
assert not almost(1 / 3.) < 0.333
assert not almost(1 / 3.) > 0.333
assert not almost(1 / 6.) < 0.167
assert not almost(1 / 6.) > 0.167
assert not almost(3227 / 555., prec=6) < 5.814414
assert not almost(3227 / 555., prec=6) > 5.814414
def test_le_ge():
assert almost(1 / 3.) <= 0.333
assert almost(1 / 3.) >= 0.333
assert almost(1 / 6.) <= 0.167
assert almost(1 / 6.) >= 0.167
assert almost(3227 / 555., prec=6) <= 5.814414
assert almost(3227 / 555., prec=6) >= 5.814414
def test_lt_gt_list():
import math
assert almost([math.pi, math.sqrt(2)]) < [3.142, 1.414, 1]
assert not (almost([math.pi, math.sqrt(2)]) > [3.142, 1.414, 1])
assert almost([math.pi, math.sqrt(2)]) > [3.142, 1.314, 1]
assert not (almost([math.pi, math.sqrt(2)]) < [3.142, 1.314, 1])
def test_repeating_decimal():
assert almost(1 / 3.) == 0.333
assert almost(1 / 6.) == 0.167
assert almost(3227 / 555., prec=6) == 5.814414
def test_gen():
import math
assert almost(math.sqrt(x) for x in range(2, 5)) == [1.414, 1.732, 2]
def test_list():
import math
assert almost([math.pi, math.sqrt(2)]) == [3.142, 1.414]
assert almost([math.pi, 'abc', math.sqrt(2)]) == [3.142, 'abc', 1.414]
assert almost([math.pi, 'abc', math.sqrt(2)]) != [3.142, 'def', 1.414]
def test_str():
assert almost('Hello') == 'Hello'
assert almost('Hello') != 'World'
def test_pm_1():
assert almost(1.234) == 1.233
assert almost(1.234) == 1.235
def test_ne():
assert not (almost(1 / 3.) != 0.333)
assert not (almost(1 / 6.) != 0.167)
assert not (almost(3227 / 555., prec=6) != 5.814414)
def test_irrational_number():
assert almost(math.pi) == 3.142
assert almost(math.sqrt(2)) == 1.414
def test_negative_prec():
assert almost(10000, prec=-2) == 10099
assert almost(10000, prec=-2) == 9900
assert almost(10000, prec=-2) == 10101
assert almost(10000, prec=-2) != 9800
def test_random_text():
import random
def gen_text_with_prefix(prefix):
return prefix + str(random.random())[:-5]
assert almost(gen_text_with_prefix('@')) == '@...'
def test_ellipsis():
assert almost('Hello, world') == 'Hello, ...'
assert almost('Hello, ...') == 'Hello, world'
assert almost('..., ...') == 'Hello, world'
assert almost('..., ...') == '..., world'
assert almost('..., ...') == '..., ...'
assert almost('...') == 'Hello, world'
assert 'world' in almost('Hello, world')
assert 'earth' not in almost('Hello, world')
assert 'He...' in almost('Hello, world')
assert '...ld' in almost('Hello, world')
assert 'o, wo' in almost('Hello, world')
assert 'world' in almost('Hello, ...')
assert 'angel' in almost('Hello, ...')
assert 'world' not in almost('Hello, ..')
assert almost([['Hello, ...'], ['..., world']]) == \
[['Hello, world'], ['Hello, world']]
assert almost([['Hello, ...'], ['..., world']]) != \
[['Bye, world'], ['Hello, world']]
