diff options
author | knu <knu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-12-10 15:08:31 +0000 |
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committer | knu <knu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-12-10 15:08:31 +0000 |
commit | b0388e77e3668973d291f0d6fec3c4401c15c8df (patch) | |
tree | 4b78a26576e6415c7c5891a210470aea25962202 /test | |
parent | 39a6f7e34e5657cfa775c1108f7efecf196128ea (diff) |
* array.c (rb_ary_slice_bang): If an invalid negative index (<=
-size) is given, do not raise an exception but return nil just
like slice() does.
* test/ruby/test_array.rb (TestArray::test_slice,
TestArray::test_slice!): Pull in test cases from trunk.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@14184 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test')
-rw-r--r-- | test/ruby/test_array.rb | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb index c56f06c3b2..38b760f02c 100644 --- a/test/ruby/test_array.rb +++ b/test/ruby/test_array.rb @@ -142,4 +142,91 @@ class TestArray < Test::Unit::TestCase assert_equal([0, 1, 12, 13, 14, 5], [0, 1, 2, 3, 4, 5].fill(2..-2){|i| i+10}) assert_equal([0, 1, 12, 13, 4, 5], [0, 1, 2, 3, 4, 5].fill(2...-2){|i| i+10}) end + + # From rubicon + + def setup + @cls = Array + end + + def test_slice + a = @cls[*(1..100).to_a] + + assert_equal(1, a.slice(0)) + assert_equal(100, a.slice(99)) + assert_nil(a.slice(100)) + assert_equal(100, a.slice(-1)) + assert_equal(99, a.slice(-2)) + assert_equal(1, a.slice(-100)) + assert_nil(a.slice(-101)) + + assert_equal(@cls[1], a.slice(0,1)) + assert_equal(@cls[100], a.slice(99,1)) + assert_equal(@cls[], a.slice(100,1)) + assert_equal(@cls[100], a.slice(99,100)) + assert_equal(@cls[100], a.slice(-1,1)) + assert_equal(@cls[99], a.slice(-2,1)) + + assert_equal(@cls[10, 11, 12], a.slice(9, 3)) + assert_equal(@cls[10, 11, 12], a.slice(-91, 3)) + + assert_nil(a.slice(-101, 2)) + + assert_equal(@cls[1], a.slice(0..0)) + assert_equal(@cls[100], a.slice(99..99)) + assert_equal(@cls[], a.slice(100..100)) + assert_equal(@cls[100], a.slice(99..200)) + assert_equal(@cls[100], a.slice(-1..-1)) + assert_equal(@cls[99], a.slice(-2..-2)) + + assert_equal(@cls[10, 11, 12], a.slice(9..11)) + assert_equal(@cls[10, 11, 12], a.slice(-91..-89)) + + assert_nil(a.slice(-101..-1)) + + assert_nil(a.slice(10, -3)) + # Ruby 1.8 feature change: + # Array#slice[size..x] always returns []. + #assert_nil(a.slice(10..7)) + assert_equal @cls[], a.slice(10..7) + end + + def test_slice! + a = @cls[1, 2, 3, 4, 5] + assert_equal(3, a.slice!(2)) + assert_equal(@cls[1, 2, 4, 5], a) + + a = @cls[1, 2, 3, 4, 5] + assert_equal(4, a.slice!(-2)) + assert_equal(@cls[1, 2, 3, 5], a) + + a = @cls[1, 2, 3, 4, 5] + assert_equal(@cls[3,4], a.slice!(2,2)) + assert_equal(@cls[1, 2, 5], a) + + a = @cls[1, 2, 3, 4, 5] + assert_equal(@cls[4,5], a.slice!(-2,2)) + assert_equal(@cls[1, 2, 3], a) + + a = @cls[1, 2, 3, 4, 5] + assert_equal(@cls[3,4], a.slice!(2..3)) + assert_equal(@cls[1, 2, 5], a) + + a = @cls[1, 2, 3, 4, 5] + assert_equal(nil, a.slice!(20)) + assert_equal(@cls[1, 2, 3, 4, 5], a) + + a = @cls[1, 2, 3, 4, 5] + assert_equal(nil, a.slice!(-6)) + assert_equal(@cls[1, 2, 3, 4, 5], a) + + a = @cls[1, 2, 3, 4, 5] + assert_equal(nil, a.slice!(-6..4)) + assert_equal(@cls[1, 2, 3, 4, 5], a) + + a = @cls[1, 2, 3, 4, 5] + assert_equal(nil, a.slice!(-6,2)) + assert_equal(@cls[1, 2, 3, 4, 5], a) + end + end |