1 files changed, 60 insertions, 2 deletions
diff --git a/spec/ruby/core/array/slice_spec.rb b/spec/ruby/core/array/slice_spec.rb
index 16220bdf0d..731c129251 100644
--- a/spec/ruby/core/array/slice_spec.rb
+++ b/spec/ruby/core/array/slice_spec.rb
@@ -150,8 +150,66 @@ describe "Array#slice!" do
     a.should == [1, 2]
   end
 
-  it "raises a #{frozen_error_class} on a frozen array" do
-    -> { ArraySpecs.frozen_array.slice!(0, 0) }.should raise_error(frozen_error_class)
+  it "raises a FrozenError on a frozen array" do
+    -> { ArraySpecs.frozen_array.slice!(0, 0) }.should raise_error(FrozenError)
+  end
+
+  it "works with endless ranges" do
+    a = [1, 2, 3]
+    a.slice!(eval("(1..)")).should == [2, 3]
+    a.should == [1]
+
+    a = [1, 2, 3]
+    a.slice!(eval("(2...)")).should == [3]
+    a.should == [1, 2]
+
+    a = [1, 2, 3]
+    a.slice!(eval("(-2..)")).should == [2, 3]
+    a.should == [1]
+
+    a = [1, 2, 3]
+    a.slice!(eval("(-1...)")).should == [3]
+    a.should == [1, 2]
+  end
+
+  it "works with beginless ranges" do
+    a = [0,1,2,3,4]
+    a.slice!((..3)).should == [0, 1, 2, 3]
+    a.should == [4]
+
+    a = [0,1,2,3,4]
+    a.slice!((...-2)).should == [0, 1, 2]
+    a.should == [3, 4]
+  end
+
+  describe "with a subclass of Array" do
+    before :each do
+      @array = ArraySpecs::MyArray[1, 2, 3, 4, 5]
+    end
+
+    it "returns a Array instance with [n, m]" do
+      @array.slice!(0, 2).should be_an_instance_of(Array)
+    end
+
+    it "returns a Array instance with [-n, m]" do
+      @array.slice!(-3, 2).should be_an_instance_of(Array)
+    end
+
+    it "returns a Array instance with [n..m]" do
+      @array.slice!(1..3).should be_an_instance_of(Array)
+    end
+
+    it "returns a Array instance with [n...m]" do
+      @array.slice!(1...3).should be_an_instance_of(Array)
+    end
+
+    it "returns a Array instance with [-n..-m]" do
+      @array.slice!(-3..-1).should be_an_instance_of(Array)
+    end
+
+    it "returns a Array instance with [-n...-m]" do
+      @array.slice!(-3...-1).should be_an_instance_of(Array)
+    end
   end
 end