From 9403b1d951c47aca67d2bac1369b86c125c5119d Mon Sep 17 00:00:00 2001
From: Bob Van Landuyt <bob@vanlanduyt.co>
Date: Thu, 14 Jun 2018 15:06:53 +0200
Subject: Allow querying a single MR within a project

This allows the user to get a single MR nested in a GraphQL project
query.

Since we need the full path and the iid anyway, this makes more sense
than having a root query that needs the full path as well.
---
 spec/support/helpers/graphql_helpers.rb   | 15 ++++++++++++---
 spec/support/matchers/graphql_matchers.rb |  6 ++++++
 2 files changed, 18 insertions(+), 3 deletions(-)

(limited to 'spec/support')

diff --git a/spec/support/helpers/graphql_helpers.rb b/spec/support/helpers/graphql_helpers.rb
index 30ff9a1196a..0930b9da368 100644
--- a/spec/support/helpers/graphql_helpers.rb
+++ b/spec/support/helpers/graphql_helpers.rb
@@ -34,14 +34,20 @@ module GraphqlHelpers
   end
 
   def graphql_query_for(name, attributes = {}, fields = nil)
+    <<~QUERY
+    {
+      #{query_graphql_field(name, attributes, fields)}
+    }
+    QUERY
+  end
+
+  def query_graphql_field(name, attributes = {}, fields = nil)
     fields ||= all_graphql_fields_for(name.classify)
     attributes = attributes_to_graphql(attributes)
     <<~QUERY
-    {
       #{name}(#{attributes}) {
         #{fields}
       }
-    }
     QUERY
   end
 
@@ -50,12 +56,15 @@ module GraphqlHelpers
     return "" unless type
 
     type.fields.map do |name, field|
+      # We can't guess arguments, so skip fields that require them
+      next if field.arguments.any?
+
       if scalar?(field)
         name
       else
         "#{name} { #{all_graphql_fields_for(field_type(field))} }"
       end
-    end.join("\n")
+    end.compact.join("\n")
   end
 
   def attributes_to_graphql(attributes)
diff --git a/spec/support/matchers/graphql_matchers.rb b/spec/support/matchers/graphql_matchers.rb
index ba7a1c8cde0..d23cbaf4beb 100644
--- a/spec/support/matchers/graphql_matchers.rb
+++ b/spec/support/matchers/graphql_matchers.rb
@@ -13,6 +13,12 @@ RSpec::Matchers.define :have_graphql_fields do |*expected|
   end
 end
 
+RSpec::Matchers.define :have_graphql_field do |field_name|
+  match do |kls|
+    expect(kls.fields.keys).to include(GraphqlHelpers.fieldnamerize(field_name))
+  end
+end
+
 RSpec::Matchers.define :have_graphql_arguments do |*expected|
   include GraphqlHelpers
 
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