Pass context to examples

src/spectator/context.cr

@@ -2,6 +2,7 @@ require "./example"
 
 module Spectator
   class Context
+    getter parent : Context?
     getter examples = [] of Example
     getter contexts = [] of Context
     getter before_all_hooks = [] of ->
@@ -10,6 +11,12 @@ module Spectator
     getter after_each_hooks = [] of ->
     getter around_each_hooks = [] of Example ->
 
+    def initialize(@parent = nil)
+      if (parent = @parent)
+        parent.contexts << self
+      end
+    end
+
     def all_examples
       add_examples
     end

src/spectator/dsl.cr

@@ -14,8 +14,8 @@ module Spectator
       module {{module_name.id}}
         include ::Spectator::DSL
 
-        CURRENT_CONTEXT = ::Spectator::Context.new
-        {{context_module.id}}::CURRENT_CONTEXT.contexts << CURRENT_CONTEXT
+        PARENT_CONTEXT = {{context_module.id}}::CURRENT_CONTEXT
+        CURRENT_CONTEXT = ::Spectator::Context.new(PARENT_CONTEXT)
 
         CONTEXT_MODULE = {{context_module.id}}::{{module_name.id}}
         GIVEN_VARIABLES = [
@@ -44,8 +44,13 @@ module Spectator
       class {{class_name.id}} < ::Spectator::Example
         include Locals
 
-        {% unless given_vars.empty? %}
-          def initialize({{ var_names.join(", ").id }})
+        {% if given_vars.empty? %}
+          def initialize(context)
+            super(context)
+          end
+        {% else %}
+          def initialize(context, {{ var_names.join(", ").id }})
+            super(context)
             {% for var_name in var_names %}
               self.{{var_name}} = {{var_name}}
             {% end %}
@@ -58,14 +63,14 @@ module Spectator
       end
 
       {% if given_vars.empty? %}
-        CURRENT_CONTEXT.examples << {{class_name.id}}.new
+        CURRENT_CONTEXT.examples << {{class_name.id}}.new(CURRENT_CONTEXT)
       {% else %}
         {% for given_var in given_vars %}
           {% var_name = given_var[0] %}
           {% collection = given_var[1] %}
           {{collection}}.each do |{{var_name}}|
         {% end %}
-        CURRENT_CONTEXT.examples << {{class_name.id}}.new({{var_names.join(", ").id}})
+        CURRENT_CONTEXT.examples << {{class_name.id}}.new(CURRENT_CONTEXT, {{var_names.join(", ").id}})
         {% for given_var in given_vars %}
           end
         {% end %}

src/spectator/example.cr

@@ -2,6 +2,11 @@ require "./source"
 
 module Spectator
   abstract class Example
+    getter context : Context
+
+    def initialize(@context)
+    end
+
     macro is_expected
       expect(subject)
     end