From d5a0b8e3cc48632d0cb99553a7aaf233b22a1eac Mon Sep 17 00:00:00 2001 From: nobu Date: Thu, 11 Aug 2016 07:24:25 +0000 Subject: Comparable#clamp * compar.c (cmp_clamp): Introduce Comparable#clamp. [Feature #10594] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55863 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- test/ruby/test_comparable.rb | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'test/ruby/test_comparable.rb') diff --git a/test/ruby/test_comparable.rb b/test/ruby/test_comparable.rb index 7624ef2bd3..f35719a9cb 100644 --- a/test/ruby/test_comparable.rb +++ b/test/ruby/test_comparable.rb @@ -76,6 +76,20 @@ class TestComparable < Test::Unit::TestCase assert_equal(true, @o.between?(0, 0)) end + def test_clamp + cmp->(x) do 0 <=> x end + assert_equal(1, @o.clamp(1, 2)) + assert_equal(-1, @o.clamp(-2, -1)) + assert_equal(0, @o.clamp(-1, 3)) + + assert_equal(1, @o.clamp(1, 1)) + assert_equal(0, @o.clamp(0, 0)) + + assert_raise_with_message(ArgumentError, 'min argument must be smaller than max argument') { + @o.clamp(2, 1) + } + end + def test_err assert_raise(ArgumentError) { 1.0 < nil } assert_raise(ArgumentError) { 1.0 < Object.new } -- cgit v1.2.3