1 files changed, 36 insertions, 0 deletions
diff --git a/spec/rubyspec/core/array/push_spec.rb b/spec/rubyspec/core/array/push_spec.rb
new file mode 100644
index 0000000000..562a6888dd
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+++ b/spec/rubyspec/core/array/push_spec.rb
@@ -0,0 +1,36 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "Array#push" do
+  it "appends the arguments to the array" do
+    a = [ "a", "b", "c" ]
+    a.push("d", "e", "f").should equal(a)
+    a.push().should == ["a", "b", "c", "d", "e", "f"]
+    a.push(5)
+    a.should == ["a", "b", "c", "d", "e", "f", 5]
+
+    a = [0, 1]
+    a.push(2)
+    a.should == [0, 1, 2]
+  end
+
+  it "isn't confused by previous shift" do
+    a = [ "a", "b", "c" ]
+    a.shift
+    a.push("foo")
+    a.should == ["b", "c", "foo"]
+  end
+
+  it "properly handles recursive arrays" do
+    empty = ArraySpecs.empty_recursive_array
+    empty.push(:last).should == [empty, :last]
+
+    array = ArraySpecs.recursive_array
+    array.push(: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.push(1) }.should raise_error(RuntimeError)
+    lambda { ArraySpecs.frozen_array.push }.should raise_error(RuntimeError)
+  end
+end