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| author | Xavier Shay <xavier@rhnh.net> | 2014-07-30 20:00:31 -0700 |
|---|---|---|
| committer | Xavier Shay <xavier@rhnh.net> | 2014-07-30 20:39:53 -0700 |
| commit | acac631cc9a8a0b72e8daf6ab8ad4b1f6f0667bf (patch) | |
| tree | 2d08e6a4c44443201d3fe1c5f8b41aa6756b313d /activesupport/test/core_ext/array | |
| parent | 29a6a17a11cd98f18ad46e882cc8f7fd669de59f (diff) | |
| download | rails-acac631cc9a8a0b72e8daf6ab8ad4b1f6f0667bf.tar.gz rails-acac631cc9a8a0b72e8daf6ab8ad4b1f6f0667bf.tar.bz2 rails-acac631cc9a8a0b72e8daf6ab8ad4b1f6f0667bf.zip | |
Raise a descriptive error if non-positive integer passed to in_groups_of.
This is more consistent than the current behaviour of raising a
`ZeroDivisionError: divided by 0` error when 0 is given, which can be
non-obvious especially if `in_groups_of` is part of a longer chain of
methods.
The negative case was ok - "ArgumentError: invalid slice size" - but
this error is clearer still.
Diffstat (limited to 'activesupport/test/core_ext/array')
| -rw-r--r-- | activesupport/test/core_ext/array/grouping_test.rb | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/array/grouping_test.rb b/activesupport/test/core_ext/array/grouping_test.rb index b8cfe9728c..2eb0f05141 100644 --- a/activesupport/test/core_ext/array/grouping_test.rb +++ b/activesupport/test/core_ext/array/grouping_test.rb @@ -90,6 +90,12 @@ class GroupingTest < ActiveSupport::TestCase assert_equal [[1, 2, 3], [4, 5], [6, 7]], (1..7).to_a.in_groups(3, false) end + + def test_in_groups_invalid_argument + assert_raises(ArgumentError) { [].in_groups_of(0) } + assert_raises(ArgumentError) { [].in_groups_of(-1) } + assert_raises(ArgumentError) { [].in_groups_of(nil) } + end end class SplitTest < ActiveSupport::TestCase |