Added a method to get all blocks of specified types

lib/sir_trevor_rails/block_array.rb

@@ -29,5 +29,10 @@ def first_block_of_type(type)
       klass = Block.block_class(type)
       detect { |b| b.is_a? klass }
     end
+
+    def get_blocks_of_types(types)
+      types = [types] unless types.is_a? Array
+      select { |b| types.include?(b.type) }
+    end
   end
 end

spec/unit/block_array_spec.rb

@@ -2,7 +2,7 @@
 
 class BlockArraySpec < ActiveSupport::TestCase
   describe BlockArray do
-    describe 'intialization' do
+    describe 'initialization' do
       subject { BlockArray }
 
       it 'can be initialized with an empty JSON array' do
@@ -65,6 +65,25 @@ class BlockArraySpec < ActiveSupport::TestCase
         end
       end
 
+      describe 'get_blocks_of_types' do
+        it 'returns all blocks of given types in the array' do
+          text_blocks = subject.get_blocks_of_types(:text)
+          text_blocks.each do |b| 
+            assert { b.type == :text }
+          end
+        end
+
+        it 'returns correct number of blocks of given types in the array' do
+          text_blocks = subject.get_blocks_of_types([:text, :list])
+          assert { text_blocks.size == 2 }
+        end
+
+        it 'returns empty array if called with block type not in the array' do
+          nonexistent_blocks = subject.get_blocks_of_types(:nonexistent)
+          assert { nonexistent_blocks.size == 0 }
+        end
+      end
+
       describe 'to_a' do
         it 'returns array with same number of elements' do
           assert { subject.to_a.class == Array }