Enable put_object tests with mocks.

Now that put_object mock is implemented, we can enable some of the tests
that rely on it.

Author: Timur Alperovich

lib/fog/storage/openstack/requests/put_object.rb

@@ -38,10 +38,25 @@ def put_object(container, object, data, options = {}, &block)
       end
 
       class Mock
-        def put_object(container, object, data, options = {}, &block)
+        require 'digest'
+
+        def put_object(_container, _object, data, _options = {}, &block)
+          dgst = Digest::MD5.new
+          if block_given?
+            Kernel.loop do
+              chunk = yield
+              break if chunk.empty?
+              dgst.update chunk
+            end
+          elsif data.kind_of?(String)
+            dgst.update data
+          else
+            dgst.file data
+          end
           response = Excon::Response.new
           response.status = 201
-          response.body = ""
+          response.body = ''
+          response.headers = {'ETag' => dgst.hexdigest}
           response
         end
       end

test/requests/storage/object_tests.rb

@@ -31,14 +31,12 @@ def override_path(path)
 
   describe "success" do
     it "#put_object('fogobjecttests', 'fog_object')" do
-      skip if Fog.mocking?
       resp = Fog::Storage[:openstack].put_object('fogobjecttests', 'fog_object', lorem_file)
       resp.headers['ETag'].must_equal '80d7930fe13ff4e45156b6581656a247'
     end
 
     describe "with_object" do
       before do
-        skip if Fog.mocking?
         file = lorem_file
         resp = Fog::Storage[:openstack].put_object('fogobjecttests', 'fog_object', file)
         file.close
@@ -118,7 +116,6 @@ def override_path(path)
 
     describe "put_object with block" do
       it "#put_object('fogobjecttests', 'fog_object', &block)" do
-        skip if Fog.mocking?
         begin
           file = lorem_file
           buffer_size = file.stat.size / 2 # chop it up into two buffers
@@ -133,13 +130,11 @@ def override_path(path)
 
       describe "with_object" do
         before do
-          unless Fog.mocking?
-            file = lorem_file
-            Fog::Storage[:openstack].put_object('fogobjecttests', 'fog_block_object', nil) do
-              file.read(file.stat.size).to_s
-            end
-            file.close
+          file = lorem_file
+          Fog::Storage[:openstack].put_object('fogobjecttests', 'fog_block_object', nil) do
+            file.read(file.stat.size).to_s
           end
+          file.close
         end
 
         it "#get_object" do