1 files changed, 33 insertions, 0 deletions
diff --git a/spec/ruby/core/array/shared/push.rb b/spec/ruby/core/array/shared/push.rb
new file mode 100644
index 0000000000..5951b71a19
--- /dev/null
+++ b/spec/ruby/core/array/shared/push.rb
@@ -0,0 +1,33 @@
+describe :array_push, shared: true do
+  it "appends the arguments to the array" do
+    a = [ "a", "b", "c" ]
+    a.send(@method, "d", "e", "f").should equal(a)
+    a.send(@method).should == ["a", "b", "c", "d", "e", "f"]
+    a.send(@method, 5)
+    a.should == ["a", "b", "c", "d", "e", "f", 5]
+
+    a = [0, 1]
+    a.send(@method, 2)
+    a.should == [0, 1, 2]
+  end
+
+  it "isn't confused by previous shift" do
+    a = [ "a", "b", "c" ]
+    a.shift
+    a.send(@method, "foo")
+    a.should == ["b", "c", "foo"]
+  end
+
+  it "properly handles recursive arrays" do
+    empty = ArraySpecs.empty_recursive_array
+    empty.send(@method, :last).should == [empty, :last]
+
+    array = ArraySpecs.recursive_array
+    array.send(@method, :last).should == [1, 'two', 3.0, array, array, array, array, array, :last]
+  end
+
+  it "raises a RuntimeError on a frozen array" do
+    lambda { ArraySpecs.frozen_array.send(@method, 1) }.should raise_error(RuntimeError)
+    lambda { ArraySpecs.frozen_array.send(@method) }.should raise_error(RuntimeError)
+  end
+end