Promote Tags to the Spectator namespace

src/spectator/example.cr

@@ -5,6 +5,7 @@ require "./pending_result"
 require "./result"
 require "./source"
 require "./spec/node"
+require "./tags"
 
 module Spectator
   # Standard example that runs a test case.
@@ -28,7 +29,7 @@ module Spectator
     # A set of *tags* can be used for filtering and modifying example behavior.
     def initialize(@context : Context, @entrypoint : self ->,
                    name : String? = nil, source : Source? = nil,
-                   group : ExampleGroup? = nil, tags = Spec::Node::Tags.new)
+                   group : ExampleGroup? = nil, tags = Tags.new)
       super(name, source, group, tags)
     end
 
@@ -41,7 +42,7 @@ module Spectator
     # The example will be assigned to *group* if it is provided.
     # A set of *tags* can be used for filtering and modifying example behavior.
     def initialize(name : String? = nil, source : Source? = nil, group : ExampleGroup? = nil,
-                   tags = Spec::Node::Tags.new, &block : self ->)
+                   tags = Tags.new, &block : self ->)
       super(name, source, group, tags)
       @context = NullContext.new
       @entrypoint = block

src/spectator/spec/builder.cr

@@ -4,6 +4,7 @@ require "../example"
 require "../example_context_method"
 require "../example_group"
 require "../spec"
+require "../tags"
 
 module Spectator
   class Spec
@@ -58,7 +59,7 @@ module Spectator
       #
       # The newly created group is returned.
       # It shouldn't be used outside of this class until a matching `#end_group` is called.
-      def start_group(name, source = nil, tags = Spec::Node::Tags.new) : ExampleGroup
+      def start_group(name, source = nil, tags = Tags.new) : ExampleGroup
         Log.trace { "Start group: #{name.inspect} @ #{source}; tags: #{tags}" }
         ExampleGroup.new(name, source, current_group, tags).tap do |group|
           @group_stack << group
@@ -99,7 +100,7 @@ module Spectator
       # It is expected that the test code runs when the block is called.
       #
       # The newly created example is returned.
-      def add_example(name, source, context, tags = Spec::Node::Tags.new, &block : Example -> _) : Example
+      def add_example(name, source, context, tags = Tags.new, &block : Example -> _) : Example
         Log.trace { "Add example: #{name} @ #{source}; tags: #{tags}" }
         Example.new(context, block, name, source, current_group, tags)
         # The example is added to the current group by `Example` initializer.

src/spectator/spec/node.cr

@@ -1,5 +1,6 @@
 require "../label"
 require "../source"
+require "../tags"
 
 module Spectator
   class Spec
@@ -7,9 +8,6 @@ module Spectator
     # This is commonly an `Example` or `ExampleGroup`,
     # but can be anything that should be iterated over when running the spec.
     abstract class Node
-      # User-defined keywords used for filtering and behavior modification.
-      alias Tags = Set(Symbol)
-
       # Location of the node in source code.
       getter! source : Source
 

src/spectator/tags.cr

@@ -0,0 +1,4 @@
+module Spectator
+  # User-defined keywords used for filtering and behavior modification.
+  alias Tags = Set(Symbol)
+end

src/spectator/test_context.cr

@@ -1,5 +1,7 @@
 require "./context"
 require "./dsl"
+require "./lazy_wrapper"
+require "./tags"
 
 # Class used as the base for all specs using the DSL.
 # It adds methods and macros necessary to use the DSL from the spec.
@@ -31,6 +33,6 @@ class SpectatorTestContext < SpectatorContext
   # Initial tags for tests.
   # This method should be overridden by example groups and examples.
   def self._spectator_tags
-    ::Spectator::Example::Tags.new
+    ::Spectator::Tags.new
   end
 end