README.md in graphql-batch-0.2.5 vs README.md in graphql-batch-0.3.0

@@ -47,11 +47,13 @@
 ```
 
 Use the batch execution strategy with your schema
 
 ```ruby
-MySchema = GraphQL::Schema.new(query: MyQueryType)
+MySchema = GraphQL::Schema.define do
+  query MyQueryType
+end
 MySchema.query_execution_strategy = GraphQL::Batch::ExecutionStrategy
 MySchema.mutation_execution_strategy = GraphQL::Batch::MutationExecutionStrategy
 ```
 
 The loader class can be used from the resolve proc for a graphql field by calling `.for` with the grouping arguments to get a loader instance, then call `.load` on that instance with the key to load.
@@ -107,29 +109,22 @@
 end
 ```
 
 ## Unit Testing
 
-GraphQL::Batch::Promise#sync can be used to wait for a promise to be resolved and return its result. This can be useful for debugging and unit testing loaders.
+Your loaders can be tested outside of a GraphQL query by doing the
+batch loads in a block passed to GraphQL::Batch.batch.  That method
+will set up thread-local state to store the loaders, batch load any
+promise returned from the block then clear the thread-local state
+to avoid leaking state between tests.
 
 ```ruby
   def test_single_query
     product = products(:snowboard)
-    query = RecordLoader.for(Product).load(args["id"]).then(&:title)
-    assert_equal product.title, query.sync
-  end
-```
-
-Use GraphQL::Batch::Promise.all instead of Promise.all to be able to call sync on the returned promise.
-
-```ruby
-  def test_batch_query
-    products = [products(:snowboard), products(:jacket)]
-    query1 = RecordLoader.for(Product).load(products(:snowboard).id).then(&:title)
-    query2 = RecordLoader.for(Product).load(products(:jacket).id).then(&:title)
-    results = GraphQL::Batch::Promise.all([query1, query2]).sync
-    assert_equal products(:snowboard).title, results[0]
-    assert_equal products(:jacket).title, results[1]
+    title = GraphQL::Batch.batch do
+      RecordLoader.for(Product).load(product.id).then(&:title)
+    end
+    assert_equal product.title, title
   end
 ```
 
 ## Development