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authorPrem Sichanugrist, Brian Morearty, John Reitano <s@sikachu.com, github2@morearty.org, john_reitano@yahoo.com>2011-04-10 20:27:08 +0800
committerDavid Heinemeier Hansson <david@loudthinking.com>2011-04-11 03:17:08 +0800
commit635d991683c439da56fa72853880e88e6ac291ed (patch)
treecb2d51ebe3bedfb71df5661ba5e86246bf064e0a /activesupport/test
parent62b2755f7a4ca12491a7899348066695a6a26917 (diff)
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Add support for Object#in? and Object#either? in Active Support [#6321 state:committed]
This will allow you to check if an object is included in another object or the list of objects or not. This patch is derived from patch by Brian Morearty and John Reitano on Lighthouse ticket. I've rewrite it and make sure that we support both 'another object' and 'list of objects' version, as it surely be useful to support both.
Diffstat (limited to 'activesupport/test')
-rw-r--r--activesupport/test/core_ext/object/inclusion_test.rb52
1 files changed, 52 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/object/inclusion_test.rb b/activesupport/test/core_ext/object/inclusion_test.rb
new file mode 100644
index 0000000000..b4207c20ea
--- /dev/null
+++ b/activesupport/test/core_ext/object/inclusion_test.rb
@@ -0,0 +1,52 @@
+require 'abstract_unit'
+require 'active_support/core_ext/object/inclusion'
+
+class InTest < Test::Unit::TestCase
+ def test_in_array
+ assert 1.in?([1,2])
+ assert !3.in?([1,2])
+ end
+
+ def test_in_hash
+ h = { "a" => 100, "b" => 200 }
+ assert "a".in?(h)
+ assert !"z".in?(h)
+ end
+
+ def test_in_string
+ assert "lo".in?("hello")
+ assert !"ol".in?("hello")
+ assert ?h.in?("hello")
+ end
+
+ def test_in_range
+ assert 25.in?(1..50)
+ assert !75.in?(1..50)
+ end
+
+ def test_in_set
+ s = Set.new([1,2])
+ assert 1.in?(s)
+ assert !3.in?(s)
+ end
+
+ def test_either
+ assert 1.either?(1,2,3)
+ assert !5.either?(1,2,3)
+ assert [1,2,3].either?([1,2,3], 2, [3,4,5])
+ end
+
+ module A
+ end
+ class B
+ include A
+ end
+ class C < B
+ end
+
+ def test_in_module
+ assert A.in?(B)
+ assert A.in?(C)
+ assert !A.in?(A)
+ end
+end