Improve to_s and inspection on atomic objects

lib/concurrent/atomic/atomic_boolean.rb

@@ -112,5 +112,11 @@ module Concurrent
   #
   # @!macro atomic_boolean_public_api
   class AtomicBoolean < AtomicBooleanImplementation
+    # @return [String] Short string representation.
+    def to_s
+      format '<#%s:0x%x value:%s>', self.class, object_id << 1, value
+    end
+
+    alias_method :inspect, :to_s
   end
 end

lib/concurrent/atomic/atomic_fixnum.rb

@@ -131,7 +131,9 @@ module Concurrent
   class AtomicFixnum < AtomicFixnumImplementation
     # @return [String] Short string representation.
     def to_s
-      format '<#%s:0x%x value:%s>', self.class, object_id << 1, get
+      format '<#%s:0x%x value:%s>', self.class, object_id << 1, value
     end
+
+    alias_method :inspect, :to_s
   end
 end

lib/concurrent/atomic/atomic_reference.rb

@@ -46,4 +46,6 @@ class Concurrent::AtomicReference
   def to_s
     format '<#%s:0x%x value:%s>', self.class, object_id << 1, get
   end
+
+  alias_method :inspect, :to_s
 end

lib/concurrent/edge/lock_free_stack.rb

@@ -118,5 +118,7 @@ def clear_each(&block)
     def to_s
       format '<#%s:0x%x %s>', self.class, object_id << 1, to_a.to_s
     end
+
+    alias_method :inspect, :to_s
   end
 end

spec/concurrent/atomic/atomic_boolean_spec.rb

@@ -174,5 +174,13 @@ module Concurrent
         expect(AtomicBoolean.ancestors).to include(MutexAtomicBoolean)
       end
     end
+
+    describe '#to_s and #inspect' do
+      it 'includes the value' do
+        subject = described_class.new(true)
+        expect(subject.to_s).to include('true')
+        expect(subject.inspect).to include('true')
+      end
+    end
   end
 end

spec/concurrent/atomic/atomic_fixnum_spec.rb

@@ -234,5 +234,14 @@ module Concurrent
         expect(AtomicFixnum.ancestors).to include(MutexAtomicFixnum)
       end
     end
+
+    describe '#to_s and #inspect' do
+      it 'includes the value' do
+        subject = described_class.new(42)
+        expect(subject.to_s).to include('42')
+        expect(subject.inspect).to include('42')
+      end
+    end
+
   end
 end

spec/concurrent/atomic/atomic_reference_spec.rb

@@ -147,6 +147,14 @@ module Concurrent
 
   describe AtomicReference do
     it_should_behave_like :atomic_reference
+
+    describe '#to_s and #inspect' do
+      it 'includes the value' do
+        subject = described_class.new('kajhsd')
+        expect(subject.to_s).to include('kajhsd')
+        expect(subject.inspect).to include('kajhsd')
+      end
+    end
   end
 
   describe MutexAtomicReference do