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Diffstat (limited to 'spec/ruby/core/array/append_spec.rb')
-rw-r--r-- | spec/ruby/core/array/append_spec.rb | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/spec/ruby/core/array/append_spec.rb b/spec/ruby/core/array/append_spec.rb new file mode 100644 index 0000000000..4c65004c58 --- /dev/null +++ b/spec/ruby/core/array/append_spec.rb @@ -0,0 +1,35 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "Array#<<" do + it "pushes the object onto the end of the array" do + ([ 1, 2 ] << "c" << "d" << [ 3, 4 ]).should == [1, 2, "c", "d", [3, 4]] + end + + it "returns self to allow chaining" do + a = [] + b = a + (a << 1).should equal(b) + (a << 2 << 3).should equal(b) + end + + it "correctly resizes the Array" do + a = [] + a.size.should == 0 + a << :foo + a.size.should == 1 + a << :bar << :baz + a.size.should == 3 + + a = [1, 2, 3] + a.shift + a.shift + a.shift + a << :foo + a.should == [:foo] + end + + it "raises a RuntimeError on a frozen array" do + lambda { ArraySpecs.frozen_array << 5 }.should raise_error(RuntimeError) + end +end |