1 files changed, 37 insertions, 2 deletions
diff --git a/spec/ruby/core/set/select_spec.rb b/spec/ruby/core/set/select_spec.rb
index b458ffacaa..619194605b 100644
--- a/spec/ruby/core/set/select_spec.rb
+++ b/spec/ruby/core/set/select_spec.rb
@@ -1,6 +1,41 @@
 require_relative '../../spec_helper'
-require_relative 'shared/select'
 
 describe "Set#select!" do
-  it_behaves_like :set_select_bang, :select!
+  before :each do
+    @set = Set["one", "two", "three"]
+  end
+
+  it "yields every element of self" do
+    ret = []
+    @set.select! { |x| ret << x }
+    ret.sort.should == ["one", "two", "three"].sort
+  end
+
+  it "keeps every element from self for which the passed block returns true" do
+    @set.select! { |x| x.size != 3 }
+    @set.size.should.eql?(1)
+
+    @set.should_not.include?("one")
+    @set.should_not.include?("two")
+    @set.should.include?("three")
+  end
+
+  it "returns self when self was modified" do
+    @set.select! { false }.should.equal?(@set)
+  end
+
+  it "returns nil when self was not modified" do
+    @set.select! { true }.should == nil
+  end
+
+  it "returns an Enumerator when passed no block" do
+    enum = @set.select!
+    enum.should.instance_of?(Enumerator)
+
+    enum.each { |x| x.size != 3 }
+
+    @set.should_not.include?("one")
+    @set.should_not.include?("two")
+    @set.should.include?("three")
+  end
 end