Friendlier descriptions of objects

src/spectator/double.cr

@@ -6,6 +6,9 @@ module Spectator
     @spectator_stubs = Deque(MethodStub).new
     @spectator_stub_calls = Deque(MethodCall).new
 
+    def initialize(@spectator_double_name : Symbol)
+    end
+
     private macro stub(definition, &block)
       {%
         name = nil
@@ -78,6 +81,12 @@ module Spectator
       end
     end
 
+    def to_s(io)
+      io << "Double("
+      io << @spectator_double_name
+      io << ')'
+    end
+
     protected def spectator_define_stub(stub : MethodStub) : Nil
       @spectator_stubs << stub
     end

src/spectator/dsl/mocks.cr

@@ -9,6 +9,7 @@ module Spectator::DSL
     {% else %}
       class Double{{name.id}} < ::Spectator::Double
         def initialize(@spectator_test : {{@type.id}})
+          super({{name.id.symbolize}})
         end
 
         forward_missing_to @spectator_test

src/spectator/generic_method_call.cr

@@ -9,5 +9,16 @@ module Spectator
     def initialize(name : Symbol, @args : T, @options : NT)
       super(name)
     end
+
+    def to_s(io)
+      io << name
+      return if @args.empty? && @options.empty?
+
+      io << '('
+      io << @args
+      io << ", " if @args.any?
+      io << @options
+      io << ')'
+    end
   end
 end

src/spectator/matchers/receive_matcher.cr

@@ -17,7 +17,7 @@ module Spectator::Matchers
     end
 
     def failure_message(actual : TestExpression(T)) : String forall T
-      "#{actual.value} did not receive #{@expected.label}"
+      "#{actual.label} did not receive #{@expected.label}"
     end
 
     def values(actual : TestExpression(T)) forall T