Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/language/array_spec.rb

@@ -0,0 +1,155 @@
+require File.expand_path('../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/array', __FILE__)
+
+describe "Array literals" do
+  it "[] should return a new array populated with the given elements" do
+    array = [1, 'a', nil]
+    array.should be_kind_of(Array)
+    array[0].should == 1
+    array[1].should == 'a'
+    array[2].should == nil
+  end
+
+  it "[] treats empty expressions as nil elements" do
+    array = [0, (), 2, (), 4]
+    array.should be_kind_of(Array)
+    array[0].should == 0
+    array[1].should == nil
+    array[2].should == 2
+    array[3].should == nil
+    array[4].should == 4
+  end
+
+  it "[] accepts a literal hash without curly braces as its only parameter" do
+    ["foo" => :bar, baz: 42].should == [{"foo" => :bar, baz: 42}]
+  end
+
+  it "[] accepts a literal hash without curly braces as its last parameter" do
+    ["foo", "bar" => :baz].should == ["foo", {"bar" => :baz}]
+    [1, 2, 3 => 6, 4 => 24].should == [1, 2, {3 => 6, 4 => 24}]
+  end
+
+  it "[] treats splatted nil as no element" do
+    [*nil].should == []
+    [1, *nil].should == [1]
+    [1, 2, *nil].should == [1, 2]
+    [1, *nil, 3].should == [1, 3]
+    [*nil, *nil, *nil].should == []
+  end
+end
+
+describe "Bareword array literal" do
+  it "%w() transforms unquoted barewords into an array" do
+    a = 3
+    %w(a #{3+a} 3).should == ["a", '#{3+a}', "3"]
+  end
+
+  it "%W() transforms unquoted barewords into an array, supporting interpolation" do
+    a = 3
+    %W(a #{3+a} 3).should == ["a", '6', "3"]
+  end
+
+  it "%W() always treats interpolated expressions as a single word" do
+    a = "hello world"
+    %W(a b c #{a} d e).should == ["a", "b", "c", "hello world", "d", "e"]
+  end
+
+  it "treats consecutive whitespace characters the same as one" do
+    %w(a  b c  d).should == ["a", "b", "c", "d"]
+    %W(hello
+       world).should == ["hello", "world"]
+  end
+
+  it "treats whitespace as literals characters when escaped by a backslash" do
+    %w(a b\ c d e).should == ["a", "b c", "d", "e"]
+    %w(a b\
+c d).should == ["a", "b\nc", "d"]
+    %W(a\  b\tc).should == ["a ", "b\tc"]
+    %W(white\  \  \ \  \ space).should == ["white ", " ", "  ", " space"]
+  end
+end
+
+describe "The unpacking splat operator (*)" do
+  it "when applied to a literal nested array, unpacks its elements into the containing array" do
+    [1, 2, *[3, 4, 5]].should == [1, 2, 3, 4, 5]
+  end
+
+  it "when applied to a nested referenced array, unpacks its elements into the containing array" do
+    splatted_array = [3, 4, 5]
+    [1, 2, *splatted_array].should == [1, 2, 3, 4, 5]
+  end
+
+  it "returns a new array containing the same values when applied to an array inside an empty array" do
+    splatted_array = [3, 4, 5]
+    [*splatted_array].should == splatted_array
+    [*splatted_array].should_not equal(splatted_array)
+  end
+
+  it "unpacks the start and count arguments in an array slice assignment" do
+    alphabet_1 = ['a'..'z'].to_a
+    alphabet_2 = alphabet_1.dup
+    start_and_count_args = [1, 10]
+
+    alphabet_1[1, 10] = 'a'
+    alphabet_2[*start_and_count_args] = 'a'
+
+    alphabet_1.should == alphabet_2
+  end
+
+  it "unpacks arguments as if they were listed statically" do
+    static = [1,2,3,4]
+    receiver = static.dup
+    args = [0,1]
+    static[0,1] = []
+    static.should == [2,3,4]
+    receiver[*args] = []
+    receiver.should == static
+  end
+
+  it "unpacks a literal array into arguments in a method call" do
+    tester = ArraySpec::Splat.new
+    tester.unpack_3args(*[1, 2, 3]).should == [1, 2, 3]
+    tester.unpack_4args(1, 2, *[3, 4]).should == [1, 2, 3, 4]
+    tester.unpack_4args("a", %w(b c), *%w(d e)).should == ["a", ["b", "c"], "d", "e"]
+  end
+
+  it "unpacks a referenced array into arguments in a method call" do
+    args = [1, 2, 3]
+    tester = ArraySpec::Splat.new
+    tester.unpack_3args(*args).should == [1, 2, 3]
+    tester.unpack_4args(0, *args).should == [0, 1, 2, 3]
+  end
+
+  it "when applied to a non-Array value attempts to coerce it to Array if the object respond_to?(:to_a)" do
+    obj = mock("pseudo-array")
+    obj.should_receive(:to_a).and_return([2, 3, 4])
+    [1, *obj].should == [1, 2, 3, 4]
+  end
+
+  it "when applied to a non-Array value uses it unchanged if it does not respond_to?(:to_a)" do
+    obj = Object.new
+    obj.should_not respond_to(:to_a)
+    [1, *obj].should == [1, obj]
+  end
+
+  it "when applied to a BasicObject coerces it to Array if it respond_to?(:to_a)" do
+    obj = BasicObject.new
+    def obj.to_a; [2, 3, 4]; end
+    [1, *obj].should == [1, 2, 3, 4]
+  end
+
+  it "can be used before other non-splat elements" do
+    a = [1, 2]
+    [0, *a, 3].should == [0, 1, 2, 3]
+  end
+
+  it "can be used multiple times in the same containing array" do
+    a = [1, 2]
+    b = [1, 0]
+    [*a, 3, *a, *b].should == [1, 2, 3, 1, 2, 1, 0]
+  end
+end
+
+describe "The packing splat operator (*)" do
+
+end