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fzf/test/test_fzf.rb
Junegunn Choi 2924fd3e23 Add regression test case for #91
2014-08-17 00:22:22 +09:00

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#!/usr/bin/env ruby
# encoding: utf-8
require 'curses'
require 'timeout'
require 'stringio'
require 'minitest/autorun'
require 'tempfile'
$LOAD_PATH.unshift File.expand_path('../..', __FILE__)
ENV['FZF_EXECUTABLE'] = '0'
load 'fzf'
class TestFZF < MiniTest::Unit::TestCase
def setup
ENV.delete 'FZF_DEFAULT_SORT'
ENV.delete 'FZF_DEFAULT_OPTS'
ENV.delete 'FZF_DEFAULT_COMMAND'
end
def test_default_options
fzf = FZF.new []
assert_equal 1000, fzf.sort
assert_equal false, fzf.multi
assert_equal true, fzf.color
assert_equal nil, fzf.rxflag
assert_equal true, fzf.mouse
assert_equal nil, fzf.nth
assert_equal true, fzf.color
assert_equal false, fzf.black
assert_equal true, fzf.ansi256
assert_equal '', fzf.query
assert_equal false, fzf.select1
assert_equal false, fzf.exit0
assert_equal nil, fzf.filter
assert_equal nil, fzf.extended
assert_equal false, fzf.reverse
assert_equal '> ', fzf.prompt
assert_equal false, fzf.print_query
end
def test_environment_variables
# Deprecated
ENV['FZF_DEFAULT_SORT'] = '20000'
fzf = FZF.new []
assert_equal 20000, fzf.sort
assert_equal nil, fzf.nth
ENV['FZF_DEFAULT_OPTS'] =
'-x -m -s 10000 -q " hello world " +c +2 --select-1 -0 ' <<
'--no-mouse -f "goodbye world" --black --nth=3,-1,2 --reverse --print-query'
fzf = FZF.new []
assert_equal 10000, fzf.sort
assert_equal ' hello world ',
fzf.query
assert_equal 'goodbye world',
fzf.filter
assert_equal :fuzzy, fzf.extended
assert_equal true, fzf.multi
assert_equal false, fzf.color
assert_equal false, fzf.ansi256
assert_equal true, fzf.black
assert_equal false, fzf.mouse
assert_equal true, fzf.select1
assert_equal true, fzf.exit0
assert_equal true, fzf.reverse
assert_equal true, fzf.print_query
assert_equal [2..2, -1..-1, 1..1], fzf.nth
end
def test_option_parser
# Long opts
fzf = FZF.new %w[--sort=2000 --no-color --multi +i --query hello --select-1
--exit-0 --filter=howdy --extended-exact
--no-mouse --no-256 --nth=1 --reverse --prompt (hi)
--print-query]
assert_equal 2000, fzf.sort
assert_equal true, fzf.multi
assert_equal false, fzf.color
assert_equal false, fzf.ansi256
assert_equal false, fzf.black
assert_equal false, fzf.mouse
assert_equal 0, fzf.rxflag
assert_equal 'hello', fzf.query
assert_equal true, fzf.select1
assert_equal true, fzf.exit0
assert_equal 'howdy', fzf.filter
assert_equal :exact, fzf.extended
assert_equal [0..0], fzf.nth
assert_equal true, fzf.reverse
assert_equal '(hi)', fzf.prompt
assert_equal true, fzf.print_query
# Long opts (left-to-right)
fzf = FZF.new %w[--sort=2000 --no-color --multi +i --query=hello
--filter a --filter b --no-256 --black --nth -1 --nth -2
--select-1 --exit-0 --no-select-1 --no-exit-0
--no-sort -i --color --no-multi --256
--reverse --no-reverse --prompt (hi) --prompt=(HI)
--print-query --no-print-query]
assert_equal nil, fzf.sort
assert_equal false, fzf.multi
assert_equal true, fzf.color
assert_equal true, fzf.ansi256
assert_equal true, fzf.black
assert_equal true, fzf.mouse
assert_equal 1, fzf.rxflag
assert_equal 'b', fzf.filter
assert_equal 'hello', fzf.query
assert_equal false, fzf.select1
assert_equal false, fzf.exit0
assert_equal nil, fzf.extended
assert_equal [-2..-2], fzf.nth
assert_equal false, fzf.reverse
assert_equal '(HI)', fzf.prompt
assert_equal false, fzf.print_query
# Short opts
fzf = FZF.new %w[-s2000 +c -m +i -qhello -x -fhowdy +2 -n3 -1 -0]
assert_equal 2000, fzf.sort
assert_equal true, fzf.multi
assert_equal false, fzf.color
assert_equal false, fzf.ansi256
assert_equal 0, fzf.rxflag
assert_equal 'hello', fzf.query
assert_equal 'howdy', fzf.filter
assert_equal :fuzzy, fzf.extended
assert_equal [2..2], fzf.nth
assert_equal true, fzf.select1
assert_equal true, fzf.exit0
# Left-to-right
fzf = FZF.new %w[-s 2000 +c -m +i -qhello -x -fgoodbye +2 -n3 -n4,5
-s 3000 -c +m -i -q world +x -fworld -2 --black --no-black
-1 -0 +1 +0
]
assert_equal 3000, fzf.sort
assert_equal false, fzf.multi
assert_equal true, fzf.color
assert_equal true, fzf.ansi256
assert_equal false, fzf.black
assert_equal 1, fzf.rxflag
assert_equal 'world', fzf.query
assert_equal false, fzf.select1
assert_equal false, fzf.exit0
assert_equal 'world', fzf.filter
assert_equal nil, fzf.extended
assert_equal [3..3, 4..4], fzf.nth
rescue SystemExit => e
assert false, "Exited"
end
def test_invalid_option
[
%w[--unknown],
%w[yo dawg],
%w[--nth=0],
%w[-n 0],
%w[-n 1..2..3],
%w[-n 1....],
%w[-n ....3],
%w[-n 1....3],
%w[-n 1..0],
%w[--nth ..0],
].each do |argv|
assert_raises(SystemExit) do
fzf = FZF.new argv
end
end
end
# FIXME Only on 1.9 or above
def test_width
fzf = FZF.new []
assert_equal 5, fzf.width('abcde')
assert_equal 4, fzf.width('한글')
assert_equal 5, fzf.width('한글.')
end
def test_trim
fzf = FZF.new []
assert_equal ['사.', 6], fzf.trim('가나다라마바사.', 4, true)
assert_equal ['바사.', 5], fzf.trim('가나다라마바사.', 5, true)
assert_equal ['바사.', 5], fzf.trim('가나다라마바사.', 6, true)
assert_equal ['마바사.', 4], fzf.trim('가나다라마바사.', 7, true)
assert_equal ['가나', 6], fzf.trim('가나다라마바사.', 4, false)
assert_equal ['가나', 6], fzf.trim('가나다라마바사.', 5, false)
assert_equal ['가나a', 6], fzf.trim('가나ab라마바사.', 5, false)
assert_equal ['가나ab', 5], fzf.trim('가나ab라마바사.', 6, false)
assert_equal ['가나ab', 5], fzf.trim('가나ab라마바사.', 7, false)
end
def test_format
fzf = FZF.new []
assert_equal [['01234..', false]], fzf.format('0123456789', 7, [])
assert_equal [['012', false], ['34', true], ['..', false]],
fzf.format('0123456789', 7, [[3, 5]])
assert_equal [['..56', false], ['789', true]],
fzf.format('0123456789', 7, [[7, 10]])
assert_equal [['..56', false], ['78', true], ['9', false]],
fzf.format('0123456789', 7, [[7, 9]])
(3..5).each do |i|
assert_equal [['..', false], ['567', true], ['89', false]],
fzf.format('0123456789', 7, [[i, 8]])
end
assert_equal [['..', false], ['345', true], ['..', false]],
fzf.format('0123456789', 7, [[3, 6]])
assert_equal [['012', false], ['34', true], ['..', false]],
fzf.format('0123456789', 7, [[3, 5]])
# Multi-region
assert_equal [["0", true], ["1", false], ["2", true], ["34..", false]],
fzf.format('0123456789', 7, [[0, 1], [2, 3]])
assert_equal [["..", false], ["5", true], ["6", false], ["78", true], ["9", false]],
fzf.format('0123456789', 7, [[3, 6], [7, 9]])
assert_equal [["..", false], ["3", true], ["4", false], ["5", true], ["..", false]],
fzf.format('0123456789', 7, [[3, 4], [5, 6]])
# Multi-region Overlap
assert_equal [["..", false], ["345", true], ["..", false]],
fzf.format('0123456789', 7, [[4, 5], [3, 6]])
end
def test_fuzzy_matcher
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE
list = %w[
juice
juiceful
juiceless
juicily
juiciness
juicy]
assert matcher.caches.empty?
assert_equal(
[["juice", [[0, 1]]],
["juiceful", [[0, 1]]],
["juiceless", [[0, 1]]],
["juicily", [[0, 1]]],
["juiciness", [[0, 1]]],
["juicy", [[0, 1]]]], matcher.match(list, 'j', '', '').sort)
assert !matcher.caches.empty?
assert_equal [list.object_id], matcher.caches.keys
assert_equal 1, matcher.caches[list.object_id].length
assert_equal 6, matcher.caches[list.object_id]['j'].length
assert_equal(
[["juicily", [[0, 5]]],
["juiciness", [[0, 5]]]], matcher.match(list, 'jii', '', '').sort)
assert_equal(
[["juicily", [[2, 5]]],
["juiciness", [[2, 5]]]], matcher.match(list, 'ii', '', '').sort)
assert_equal 3, matcher.caches[list.object_id].length
assert_equal 2, matcher.caches[list.object_id]['ii'].length
# TODO : partial_cache
end
def test_fuzzy_matcher_rxflag
assert_equal nil, FZF::FuzzyMatcher.new(nil).rxflag
assert_equal 0, FZF::FuzzyMatcher.new(0).rxflag
assert_equal 1, FZF::FuzzyMatcher.new(1).rxflag
assert_equal 1, FZF::FuzzyMatcher.new(nil).rxflag_for('abc')
assert_equal 0, FZF::FuzzyMatcher.new(nil).rxflag_for('Abc')
assert_equal 0, FZF::FuzzyMatcher.new(0).rxflag_for('abc')
assert_equal 0, FZF::FuzzyMatcher.new(0).rxflag_for('Abc')
assert_equal 1, FZF::FuzzyMatcher.new(1).rxflag_for('abc')
assert_equal 1, FZF::FuzzyMatcher.new(1).rxflag_for('Abc')
end
def test_fuzzy_matcher_case_sensitive
# Smart-case match (Uppercase found)
assert_equal [['Fruit', [[0, 5]]]],
FZF::FuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], 'Fruit', '', '').sort
# Smart-case match (Uppercase not-found)
assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
FZF::FuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], 'fruit', '', '').sort
# Case-sensitive match (-i)
assert_equal [['Fruit', [[0, 5]]]],
FZF::FuzzyMatcher.new(0).match(%w[Fruit Grapefruit], 'Fruit', '', '').sort
# Case-insensitive match (+i)
assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
FZF::FuzzyMatcher.new(Regexp::IGNORECASE).
match(%w[Fruit Grapefruit], 'Fruit', '', '').sort
end
def test_extended_fuzzy_matcher_case_sensitive
%w['Fruit Fruit$].each do |q|
# Smart-case match (Uppercase found)
assert_equal [['Fruit', [[0, 5]]]],
FZF::ExtendedFuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], q, '', '').sort
# Smart-case match (Uppercase not-found)
assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
FZF::ExtendedFuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], q.downcase, '', '').sort
# Case-sensitive match (-i)
assert_equal [['Fruit', [[0, 5]]]],
FZF::ExtendedFuzzyMatcher.new(0).match(%w[Fruit Grapefruit], q, '', '').sort
# Case-insensitive match (+i)
assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
FZF::ExtendedFuzzyMatcher.new(Regexp::IGNORECASE).
match(%w[Fruit Grapefruit], q, '', '').sort
end
end
def test_extended_fuzzy_matcher
matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE
list = %w[
juice
juiceful
juiceless
juicily
juiciness
juicy
_juice]
match = proc { |q, prefix|
matcher.match(list, q, prefix, '').sort.map { |p| [p.first, p.last.sort] }
}
assert matcher.caches.empty?
3.times do
['y j', 'j y'].each do |pat|
(0..pat.length - 1).each do |prefix_length|
prefix = pat[0, prefix_length]
assert_equal(
[["juicily", [[0, 1], [6, 7]]],
["juicy", [[0, 1], [4, 5]]]],
match.call(pat, prefix))
end
end
# $
assert_equal [["juiceful", [[7, 8]]]], match.call('l$', '')
assert_equal [["juiceful", [[7, 8]]],
["juiceless", [[5, 6]]],
["juicily", [[5, 6]]]], match.call('l', '')
# ^
assert_equal list.length, match.call('j', '').length
assert_equal list.length - 1, match.call('^j', '').length
# ^ + $
assert_equal 0, match.call('^juici$', '').length
assert_equal 1, match.call('^juice$', '').length
assert_equal 0, match.call('^.*$', '').length
# !
assert_equal 0, match.call('!j', '').length
# ! + ^
assert_equal [["_juice", []]], match.call('!^j', '')
# ! + $
assert_equal list.length - 1, match.call('!l$', '').length
# ! + f
assert_equal [["juicy", [[4, 5]]]], match.call('y !l', '')
# '
assert_equal %w[juiceful juiceless juicily],
match.call('il', '').map { |e| e.first }
assert_equal %w[juicily],
match.call("'il", '').map { |e| e.first }
assert_equal (list - %w[juicily]).sort,
match.call("!'il", '').map { |e| e.first }.sort
end
assert !matcher.caches.empty?
end
def test_xfuzzy_matcher_prefix_cache
matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE
list = %w[
a.java
b.java
java.jive
c.java$
d.java
]
2.times do
assert_equal 5, matcher.match(list, 'java', 'java', '').length
assert_equal 3, matcher.match(list, 'java$', 'java$', '').length
assert_equal 1, matcher.match(list, 'java$$', 'java$$', '').length
assert_equal 0, matcher.match(list, '!java', '!java', '').length
assert_equal 4, matcher.match(list, '!^jav', '!^jav', '').length
assert_equal 4, matcher.match(list, '!^java', '!^java', '').length
assert_equal 2, matcher.match(list, '!^java !b !c', '!^java', '').length
end
end
def test_sort_by_rank
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE
xmatcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE
list = %w[
0____1
0_____1
01
____0_1
01_
_01_
0______1
___01___
]
assert_equal(
[["01", [[0, 2]]],
["01_", [[0, 2]]],
["_01_", [[1, 3]]],
["___01___", [[3, 5]]],
["____0_1", [[4, 7]]],
["0____1", [[0, 6]]],
["0_____1", [[0, 7]]],
["0______1", [[0, 8]]]],
FZF.sort(matcher.match(list, '01', '', '')))
assert_equal(
[["01", [[0, 1], [1, 2]]],
["01_", [[0, 1], [1, 2]]],
["_01_", [[1, 2], [2, 3]]],
["0____1", [[0, 1], [5, 6]]],
["0_____1", [[0, 1], [6, 7]]],
["____0_1", [[4, 5], [6, 7]]],
["0______1", [[0, 1], [7, 8]]],
["___01___", [[3, 4], [4, 5]]]],
FZF.sort(xmatcher.match(list, '0 1', '', '')))
assert_equal(
[["_01_", [[1, 3], [0, 4]], [4, 4, "_01_"]],
["___01___", [[3, 5], [0, 2]], [4, 8, "___01___"]],
["____0_1", [[4, 7], [0, 2]], [5, 7, "____0_1"]],
["0____1", [[0, 6], [1, 3]], [6, 6, "0____1"]],
["0_____1", [[0, 7], [1, 3]], [7, 7, "0_____1"]],
["0______1", [[0, 8], [1, 3]], [8, 8, "0______1"]]],
FZF.sort(xmatcher.match(list, '01 __', '', '')).map { |tuple|
tuple << FZF.rank(tuple)
}
)
end
def test_extended_exact_mode
exact = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :exact
fuzzy = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :fuzzy
list = %w[
extended-exact-mode-not-fuzzy
extended'-fuzzy-mode
]
assert_equal 2, fuzzy.match(list, 'extended', '', '').length
assert_equal 2, fuzzy.match(list, 'mode extended', '', '').length
assert_equal 2, fuzzy.match(list, 'xtndd', '', '').length
assert_equal 2, fuzzy.match(list, "'-fuzzy", '', '').length
assert_equal 2, exact.match(list, 'extended', '', '').length
assert_equal 2, exact.match(list, 'mode extended', '', '').length
assert_equal 0, exact.match(list, 'xtndd', '', '').length
assert_equal 1, exact.match(list, "'-fuzzy", '', '').length
assert_equal 2, exact.match(list, "-fuzzy", '', '').length
end
# ^$ -> matches empty item
def test_format_empty_item
fzf = FZF.new []
item = ['', [[0, 0]]]
line, offsets = item
tokens = fzf.format line, 80, offsets
assert_equal [], tokens
end
def test_mouse_event
interval = FZF::MouseEvent::DOUBLE_CLICK_INTERVAL
me = FZF::MouseEvent.new nil
me.v = 10
assert_equal false, me.double?(10)
assert_equal false, me.double?(20)
me.v = 20
assert_equal false, me.double?(10)
assert_equal false, me.double?(20)
me.v = 20
assert_equal false, me.double?(10)
assert_equal true, me.double?(20)
sleep interval
assert_equal false, me.double?(20)
end
def test_nth_match
list = [
' first second third',
'fourth fifth sixth',
]
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE
assert_equal list, matcher.match(list, 'f', '', '').map(&:first)
assert_equal [
[list[0], [[2, 5]]],
[list[1], [[9, 17]]]], matcher.match(list, 'is', '', '')
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..1]
assert_equal [[list[1], [[8, 9]]]], matcher.match(list, 'f', '', '')
assert_equal [[list[0], [[8, 9]]]], matcher.match(list, 's', '', '')
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [2..2]
assert_equal [[list[0], [[19, 20]]]], matcher.match(list, 'r', '', '')
# Comma-separated
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [2..2, 0..0]
assert_equal [[list[0], [[19, 20]]], [list[1], [[3, 4]]]], matcher.match(list, 'r', '', '')
# Ordered
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [0..0, 2..2]
assert_equal [[list[0], [[3, 4]]], [list[1], [[3, 4]]]], matcher.match(list, 'r', '', '')
regex = FZF.build_delim_regex "\t"
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [0..0], regex
assert_equal [[list[0], [[3, 10]]]], matcher.match(list, 're', '', '')
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..1], regex
assert_equal [], matcher.match(list, 'r', '', '')
assert_equal [[list[1], [[9, 17]]]], matcher.match(list, 'is', '', '')
# Negative indexing
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [-1..-1], regex
assert_equal [[list[0], [[3, 6]]]], matcher.match(list, 'rt', '', '')
assert_equal [[list[0], [[2, 5]]], [list[1], [[9, 17]]]], matcher.match(list, 'is', '', '')
# Regex delimiter
regex = FZF.build_delim_regex "[ \t]+"
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [0..0], regex
assert_equal [list[1]], matcher.match(list, 'f', '', '').map(&:first)
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..1], regex
assert_equal [[list[0], [[1, 2]]], [list[1], [[8, 9]]]], matcher.match(list, 'f', '', '')
end
def test_nth_match_range
list = [
' first second third',
'fourth fifth sixth',
]
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..2]
assert_equal [[list[0], [[8, 20]]]], matcher.match(list, 'sr', '', '')
assert_equal [], matcher.match(list, 'fo', '', '')
matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..-1, 0..0]
assert_equal [[list[0], [[8, 20]]]], matcher.match(list, 'sr', '', '')
assert_equal [[list[1], [[0, 2]]]], matcher.match(list, 'fo', '', '')
matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :fuzzy, [0..0, 1..2]
assert_equal [], matcher.match(list, '^t', '', '')
matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :fuzzy, [0..1, 2..2]
assert_equal [[list[0], [[16, 17]]]], matcher.match(list, '^t', '', '')
matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :fuzzy, [1..-1]
assert_equal [[list[0], [[8, 9]]]], matcher.match(list, '^s', '', '')
end
def stream_for str
StringIO.new(str).tap do |sio|
sio.instance_eval do
alias org_gets gets
def gets
org_gets.tap { |e| sleep 0.5 unless e.nil? }
end
end
end
end
def assert_fzf_output opts, given, expected
stream = stream_for given
output = StringIO.new
begin
$stdout = output
FZF.new(opts, stream).start
rescue SystemExit => e
assert_equal 0, e.status
assert_equal expected, output.string.chomp
ensure
$stdout = STDOUT
end
end
def test_filter
{
%w[--filter=ol] => 'World',
%w[--filter=ol --print-query] => "ol\nWorld",
}.each do |opts, expected|
assert_fzf_output opts, "Hello\nWorld", expected
end
end
def test_select_1
{
%w[--query=ol --select-1] => 'World',
%w[--query=ol --select-1 --print-query] => "ol\nWorld",
}.each do |opts, expected|
assert_fzf_output opts, "Hello\nWorld", expected
end
end
def test_select_1_without_query
assert_fzf_output %w[--select-1], 'Hello World', 'Hello World'
end
def test_select_1_ambiguity
stream = stream_for "Hello\nWorld"
begin
Timeout::timeout(2) do
FZF.new(%w[--query=o --select-1], stream).start
end
flunk 'Should not reach here'
rescue Exception => e
Curses.close_screen
assert_instance_of Timeout::Error, e
end
end
def test_exit_0
{
%w[--query=zz --exit-0] => '',
%w[--query=zz --exit-0 --print-query] => 'zz',
}.each do |opts, expected|
assert_fzf_output opts, "Hello\nWorld", expected
end
end
def test_exit_0_without_query
assert_fzf_output %w[--exit-0], '', ''
end
def test_ranking_overlap_match_regions
list = [
'1 3 4 2',
'1 2 3 4'
]
assert_equal [
['1 2 3 4', [[0, 13], [16, 22]]],
['1 3 4 2', [[0, 24], [12, 17]]],
], FZF.sort(FZF::ExtendedFuzzyMatcher.new(nil).match(list, '12 34', '', ''))
end
def test_constrain
fzf = FZF.new []
# [#**** ]
assert_equal [false, 0, 0], fzf.constrain(0, 0, 5, 100)
# *****[**#** ... ] => [**#******* ... ]
assert_equal [true, 0, 2], fzf.constrain(5, 7, 10, 100)
# [**********]**#** => ***[*********#]**
assert_equal [true, 3, 12], fzf.constrain(0, 12, 15, 10)
# *****[**#** ] => ***[**#****]
assert_equal [true, 3, 5], fzf.constrain(5, 7, 10, 7)
# *****[**#** ] => ****[**#***]
assert_equal [true, 4, 6], fzf.constrain(5, 7, 10, 6)
# ***** [#] => ****[#]
assert_equal [true, 4, 4], fzf.constrain(10, 10, 5, 1)
# [ ] #**** => [#]****
assert_equal [true, 0, 0], fzf.constrain(-5, 0, 5, 1)
# [ ] **#** => **[#]**
assert_equal [true, 2, 2], fzf.constrain(-5, 2, 5, 1)
# [***** #] => [****# ]
assert_equal [true, 0, 4], fzf.constrain(0, 7, 5, 10)
# **[***** #] => [******# ]
assert_equal [true, 0, 6], fzf.constrain(2, 10, 7, 10)
end
def test_invalid_utf8
tmp = Tempfile.new('fzf')
tmp << 'hello ' << [0xff].pack('C*') << ' world' << $/ << [0xff].pack('C*')
tmp.close
begin
Timeout::timeout(1) do
FZF.new(%w[-n..,1,2.. -q^ -x], File.open(tmp.path)).start
end
rescue Timeout::Error
end
ensure
tmp.unlink
end
end
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