Add in-tree mspec and ruby/spec

* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 37 insertions, 0 deletions

diff --git a/spec/rubyspec/library/digest/sha512/equal_spec.rb b/spec/rubyspec/library/digest/sha512/equal_spec.rb
new file mode 100644
index 0000000000..ec4c55f118
--- /dev/null
+++ b/spec/rubyspec/library/digest/sha512/equal_spec.rb
@@ -0,0 +1,37 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require File.expand_path('../shared/constants', __FILE__)
+
+describe "Digest::SHA512#==" do
+
+  it "equals itself" do
+    cur_digest = Digest::SHA512.new
+    cur_digest.should == cur_digest
+  end
+
+  it "equals the string representing its hexdigest" do
+    cur_digest = Digest::SHA512.new
+    cur_digest.should == SHA512Constants::BlankHexdigest
+  end
+
+  it "equals the appropriate object that responds to to_str" do
+    # blank digest
+    cur_digest = Digest::SHA512.new
+    (obj = mock(SHA512Constants::BlankHexdigest)).should_receive(:to_str).and_return(SHA512Constants::BlankHexdigest)
+    cur_digest.should == obj
+
+    # non-blank digest
+    cur_digest = Digest::SHA512.new
+    cur_digest << "test"
+    d_value = cur_digest.hexdigest
+    (obj = mock(d_value)).should_receive(:to_str).and_return(d_value)
+    cur_digest.should == obj
+  end
+
+  it "equals the same digest for a different object" do
+    cur_digest = Digest::SHA512.new
+    cur_digest2 = Digest::SHA512.new
+    cur_digest.should == cur_digest2
+  end
+
+end
+