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author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-03-17 09:50:19 +0000 |
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committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-03-17 09:50:19 +0000 |
commit | fa153d74359bfef231aa97d3f164211990f19eee (patch) | |
tree | 3b10a09c8e6e5e03fe1db5fbbcf5692d30691cc8 /test/ruby/test_enum.rb | |
parent | fe9817618d0d3b382e440e6fbd08540b53354986 (diff) | |
download | ruby-fa153d74359bfef231aa97d3f164211990f19eee.tar.gz |
* enum.c (enum_inject): Implement the specialized code for sum of
integers including Bignums.
* internal.h (rb_fix_plus): Declared to be usable from enum_inject.
* numeric.c (rb_fix_plus): Defined.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54147 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/ruby/test_enum.rb')
-rw-r--r-- | test/ruby/test_enum.rb | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/ruby/test_enum.rb b/test/ruby/test_enum.rb index 3dfbd26929..c7e19fa7cc 100644 --- a/test/ruby/test_enum.rb +++ b/test/ruby/test_enum.rb @@ -2,6 +2,7 @@ require 'test/unit' EnvUtil.suppress_warning {require 'continuation'} require 'stringio' +require "rbconfig/sizeof" class TestEnumerable < Test::Unit::TestCase def setup @@ -184,7 +185,33 @@ class TestEnumerable < Test::Unit::TestCase assert_equal(nil, @empty.inject() {9}) end + FIXNUM_MIN = -(1 << (8 * RbConfig::SIZEOF['long'] - 2)) + FIXNUM_MAX = (1 << (8 * RbConfig::SIZEOF['long'] - 2)) - 1 + + def test_inject_array_mul + assert_equal(nil, [].inject(:*)) + assert_equal(5, [5].inject(:*)) + assert_equal(35, [5, 7].inject(:*)) + assert_equal(3, [].inject(3, :*)) + assert_equal(15, [5].inject(3, :*)) + assert_equal(105, [5, 7].inject(3, :*)) + end + def test_inject_array_plus + assert_equal(3, [3].inject(:+)) + assert_equal(8, [3, 5].inject(:+)) + assert_equal(15, [3, 5, 7].inject(:+)) + assert_equal(15.0, [3, 5, 7.0].inject(:+)) + assert_equal(2*FIXNUM_MAX, Array.new(2, FIXNUM_MAX).inject(:+)) + assert_equal(2*(FIXNUM_MAX+1), Array.new(2, FIXNUM_MAX+1).inject(:+)) + assert_equal(10*FIXNUM_MAX, Array.new(10, FIXNUM_MAX).inject(:+)) + assert_equal(0, ([FIXNUM_MAX, 1, -FIXNUM_MAX, -1]*10).inject(:+)) + assert_equal(FIXNUM_MAX*10, ([FIXNUM_MAX+1, -1]*10).inject(:+)) + assert_equal(2*FIXNUM_MIN, Array.new(2, FIXNUM_MIN).inject(:+)) + assert_equal((FIXNUM_MAX+1).to_f, [FIXNUM_MAX, 1, 0.0].inject(:+)) + end + + def test_inject_array_plus_redefined assert_separately([], <<-"end;") class Fixnum undef :+ @@ -194,6 +221,15 @@ class TestEnumerable < Test::Unit::TestCase end assert_equal(0, [1,2,3].inject(:+), "[ruby-dev:49510] [Bug#12178]") end; + assert_separately([], <<-"end;") + class Bignum + undef :+ + def +(x) + 0 + end + end + assert_equal(0, [#{FIXNUM_MAX},1,1].inject(:+)) + end; end def test_partition |