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

1 files changed, 62 insertions, 0 deletions

diff --git a/spec/ruby/core/hash/flatten_spec.rb b/spec/ruby/core/hash/flatten_spec.rb
new file mode 100644
index 0000000000..60762f864d
--- /dev/null
+++ b/spec/ruby/core/hash/flatten_spec.rb
@@ -0,0 +1,62 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Hash#flatten" do
+
+  before :each do
+    @h = {plato: :greek,
+          witgenstein: [:austrian, :british],
+          russell: :welsh}
+  end
+
+  it "returns an Array" do
+    {}.flatten.should be_an_instance_of(Array)
+  end
+
+  it "returns an empty Array for an empty Hash" do
+    {}.flatten.should == []
+  end
+
+  it "sets each even index of the Array to a key of the Hash" do
+    a = @h.flatten
+    a[0].should == :plato
+    a[2].should == :witgenstein
+    a[4].should == :russell
+  end
+
+  it "sets each odd index of the Array to the value corresponding to the previous element" do
+    a = @h.flatten
+    a[1].should == :greek
+    a[3].should == [:austrian, :british]
+    a[5].should == :welsh
+  end
+
+  it "does not recursively flatten Array values when called without arguments" do
+    a = @h.flatten
+    a[3].should == [:austrian, :british]
+  end
+
+  it "does not recursively flatten Hash values when called without arguments" do
+    @h[:russell] = {born: :wales, influenced_by: :mill }
+    a = @h.flatten
+    a[5].should_not == {born: :wales, influenced_by: :mill }.flatten
+  end
+
+  it "recursively flattens Array values when called with an argument >= 2" do
+    a = @h.flatten(2)
+    a[3].should == :austrian
+    a[4].should == :british
+  end
+
+  it "recursively flattens Array values to the given depth" do
+    @h[:russell] = [[:born, :wales], [:influenced_by, :mill]]
+    a = @h.flatten(2)
+    a[6].should == [:born, :wales]
+    a[7].should == [:influenced_by, :mill]
+  end
+
+  it "raises a TypeError if given a non-Integer argument" do
+    lambda do
+      @h.flatten(Object.new)
+    end.should raise_error(TypeError)
+  end
+end