Merge branch 'bw-allow-unlimited-transactions' into 'master'

Allow a high query transaction threshold when using `all_graphql_fields_for`

See merge request gitlab-org/gitlab!23453

spec/support/helpers/graphql_helpers.rb

@@ -136,6 +136,7 @@ module GraphqlHelpers
     allow_unlimited_graphql_complexity
     allow_unlimited_graphql_depth
     allow_high_graphql_recursion
+    allow_high_graphql_transaction_threshold
 
     type = GitlabSchema.types[class_name.to_s]
     return "" unless type
@@ -295,6 +296,10 @@ module GraphqlHelpers
     allow_any_instance_of(Gitlab::Graphql::QueryAnalyzers::RecursionAnalyzer).to receive(:recursion_threshold).and_return 1000
   end
 
+  def allow_high_graphql_transaction_threshold
+    stub_const("Gitlab::QueryLimiting::Transaction::THRESHOLD", 1000)
+  end
+
   def node_array(data, extract_attribute = nil)
     data.map do |item|
       extract_attribute ? item['node'][extract_attribute] : item['node']