Add `present_using` to types

By specifying a presenter for the object type, we can keep the logic
out of `GitlabSchema`.

The presenter gets initialized using the object being presented, and
the context (including the `current_user`).

1 files changed, 31 insertions, 2 deletions

diff --git a/spec/support/helpers/graphql_helpers.rb b/spec/support/helpers/graphql_helpers.rb
index 1eaa7603af0..ae29b16e32c 100644
--- a/spec/support/helpers/graphql_helpers.rb
+++ b/spec/support/helpers/graphql_helpers.rb
@@ -9,12 +9,12 @@ module GraphqlHelpers
     wrapper = proc do
       begin
         BatchLoader::Executor.ensure_current
-        blk.call
+        yield
       ensure
         BatchLoader::Executor.clear_current
       end
     end
-  
+
     if max_queries
       result = nil
       expect { result = wrapper.call }.not_to exceed_query_limit(max_queries)
@@ -23,4 +23,33 @@ module GraphqlHelpers
       wrapper.call
     end
   end
+
+  def all_graphql_fields_for(klass)
+    type = GitlabSchema.types[klass.name]
+    return "" unless type
+
+    type.fields.map do |name, field|
+      if scalar?(field)
+        name
+      else
+        "#{name} { #{all_graphql_fields_for(field_type(field))} }"
+      end
+    end.join("\n")
+  end
+
+  def post_graphql(query)
+    post '/api/graphql', query: query
+  end
+
+  def scalar?(field)
+    field_type(field).kind.scalar?
+  end
+
+  def field_type(field)
+    if field.type.respond_to?(:of_type)
+      field.type.of_type
+    else
+      field.type
+    end
+  end
 end