Add spec for Symbol#to_proc#inspect

Author: eregon

spec/ruby/core/proc/shared/to_s.rb

@@ -32,14 +32,24 @@
   describe "for a proc created with UnboundMethod#to_proc" do
     it "returns a description including '(lambda)' and optionally including file and line number" do
       def hello; end
-
       method("hello").to_proc.send(@method).should =~ /^#<Proc:([^ ]*?)(@([^ ]*)\/to_s\.rb:22)? \(lambda\)>$/
     end
 
     it "has an ASCII-8BIT encoding" do
       def hello; end
-
       method("hello").to_proc.send(@method).encoding.should == Encoding::ASCII_8BIT
     end
   end
+
+  describe "for a proc created with Symbol#to_proc" do
+    it "returns a description including '(&:symbol)'" do
+      proc = :foobar.to_proc
+      proc.send(@method).should =~ /^#<Proc:0x\h+\(&:foobar\)>$/
+    end
+
+    it "has an ASCII-8BIT encoding" do
+      proc = :foobar.to_proc
+      proc.send(@method).encoding.should == Encoding::ASCII_8BIT
+    end
+  end
 end