1 files changed, 36 insertions, 0 deletions
diff --git a/spec/ruby/core/enumerable/include_spec.rb b/spec/ruby/core/enumerable/include_spec.rb
new file mode 100644
index 0000000000..d59b351486
--- /dev/null
+++ b/spec/ruby/core/enumerable/include_spec.rb
@@ -0,0 +1,36 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "Enumerable#include?" do
+  it "returns true if any element == argument for numbers" do
+    class EnumerableSpecIncludeP; def ==(obj) obj == 5; end; end
+
+    elements = (0..5).to_a
+    EnumerableSpecs::Numerous.new(*elements).include?(5).should == true
+    EnumerableSpecs::Numerous.new(*elements).include?(10).should == false
+    EnumerableSpecs::Numerous.new(*elements).include?(EnumerableSpecIncludeP.new).should == true
+  end
+
+  it "returns true if any element == argument for other objects" do
+    class EnumerableSpecIncludeP11; def ==(obj); obj == '11'; end; end
+
+    elements = ('0'..'5').to_a + [EnumerableSpecIncludeP11.new]
+    EnumerableSpecs::Numerous.new(*elements).include?('5').should == true
+    EnumerableSpecs::Numerous.new(*elements).include?('10').should == false
+    EnumerableSpecs::Numerous.new(*elements).include?(EnumerableSpecIncludeP11.new).should == true
+    EnumerableSpecs::Numerous.new(*elements).include?('11').should == true
+  end
+
+
+  it "returns true if any member of enum equals obj when == compare different classes (legacy rubycon)" do
+    # equality is tested with ==
+    EnumerableSpecs::Numerous.new(2,4,6,8,10).include?(2.0).should == true
+    EnumerableSpecs::Numerous.new(2,4,[6,8],10).include?([6, 8]).should == true
+    EnumerableSpecs::Numerous.new(2,4,[6,8],10).include?([6.0, 8.0]).should == true
+  end
+
+  it "gathers whole arrays as elements when each yields multiple" do
+    multi = EnumerableSpecs::YieldsMulti.new
+    multi.include?([1,2]).should == true
+  end
+end