Initial code to support anonymous doubles

src/spectator/dsl/mocks.cr

@@ -2,6 +2,9 @@ require "../mocks"
 
 module Spectator::DSL
   macro double(name, **stubs, &block)
+    {% if name.is_a?(StringLiteral) %}
+      anonymous_double({{name}}, {{stubs.double_splat}})
+    {% else %}
       {%
         safe_name = name.id.symbolize.gsub(/\W/, "_").id
         type_name = "Double#{safe_name}".id
@@ -12,6 +15,7 @@ module Spectator::DSL
       {% else %}
         define_double({{type_name}}, {{name}}, {{stubs.double_splat}}) {{block}}
       {% end %}
+    {% end %}
   end
 
   macro create_double(type_name, name, **stubs)
@@ -40,7 +44,14 @@ module Spectator::DSL
     end
   end
 
+  def anonymous_double(name : String, **stubs)
+    Mocks::AnonymousDouble.new(name, stubs)
+  end
+
   macro null_double(name, **stubs, &block)
+    {% if name.is_a?(StringLiteral) %}
+      anonymous_null_double({{name}}, {{stubs.double_splat}})
+    {% else %}
       {%
         safe_name = name.id.symbolize.gsub(/\W/, "_").id
         type_name = "Double#{safe_name}".id
@@ -51,6 +62,7 @@ module Spectator::DSL
       {% else %}
         define_null_double({{type_name}}, {{name}}, {{stubs.double_splat}}) {{block}}
       {% end %}
+    {% end %}
   end
 
   macro create_null_double(type_name, name, **stubs)
@@ -79,6 +91,10 @@ module Spectator::DSL
     end
   end
 
+  def anonymous_null_double(name : Strings, **stubs)
+    AnonymousNullDouble.new(name, stubs)
+  end
+
   macro mock(name, &block)
     {% resolved = name.resolve
        type = if resolved < Reference

src/spectator/mocks/anonymous_double.cr

@@ -0,0 +1,16 @@
+module Spectator::Mocks
+  class AnonymousDouble(T)
+    def initialize(@name : String, @values : T)
+    end
+
+    def as_null_object
+      AnonymousNullDouble.new(@values)
+    end
+
+    macro method_missing(call)
+      @values.fetch({{call.name.symbolize}}) do
+        raise ::Spectator::Mocks::UnexpectedMessageError.new("#{self} received unexpected message {{call.name}}")
+      end
+    end
+  end
+end

src/spectator/mocks/anonymous_null_double.cr

@@ -0,0 +1,10 @@
+module Spectator::Mocks
+  class AnonymousNullDouble(T)
+    def initialize(@name : String, @values : T)
+    end
+
+    macro method_missing(call)
+      @values.fetch({{call.name.symbolize}}) { self }
+    end
+  end
+end