1 files changed, 31 insertions, 0 deletions
diff --git a/spec/ruby/library/set/sortedset/keep_if_spec.rb b/spec/ruby/library/set/sortedset/keep_if_spec.rb
new file mode 100644
index 0000000000..7a117fbc87
--- /dev/null
+++ b/spec/ruby/library/set/sortedset/keep_if_spec.rb
@@ -0,0 +1,31 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'set'
+
+describe "SortedSet#keep_if" do
+  before :each do
+    @set = SortedSet["one", "two", "three"]
+  end
+
+  it "yields each Object in self in sorted order" do
+    ret = []
+    @set.keep_if { |x| ret << x }
+    ret.should == ["one", "two", "three"].sort
+  end
+
+  it "keeps every element from self for which the passed block returns true" do
+    @set.keep_if { |x| x.size != 3 }
+    @set.to_a.should == ["three"]
+  end
+
+  it "returns self" do
+    @set.keep_if {}.should equal(@set)
+  end
+
+  it "returns an Enumerator when passed no block" do
+    enum = @set.keep_if
+    enum.should be_an_instance_of(Enumerator)
+
+    enum.each { |x| x.size != 3 }
+    @set.to_a.should == ["three"]
+  end
+end