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# frozen_string_literal: false
require 'test/unit'
require "-test-/string"
class Test_StringEllipsize < Test::Unit::TestCase
def setup
@foobar = Bug::String.new("foobar")
end
def assert_equal_with_class(expected, result, *rest)
assert_equal(expected.encoding, result.encoding, *rest)
assert_equal(expected, result, result.encoding.name)
assert_instance_of(String, result, *rest)
end
def test_longer
assert_equal_with_class("", @foobar.ellipsize(0))
assert_equal_with_class(".", @foobar.ellipsize(1))
assert_equal_with_class("..", @foobar.ellipsize(2))
assert_equal_with_class("...", @foobar.ellipsize(3))
assert_equal_with_class("f...", @foobar.ellipsize(4))
assert_equal_with_class("fo...", @foobar.ellipsize(5))
end
def test_shorter
assert_same(@foobar, @foobar.ellipsize(6))
assert_same(@foobar, @foobar.ellipsize(7))
end
def test_negative_length
assert_raise(IndexError) {@foobar.ellipsize(-1)}
end
def test_nonascii
a = "\u3042"
Encoding.list.each do |enc|
next if enc.dummy?
begin
s = a.encode(enc)
e = "...".encode(enc)
rescue
else
assert_equal_with_class(s*12+e, Bug::String.new(s*20).ellipsize(15))
end
end
end
end
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