Fix bug with chaining rescues of FastJsonapi::MultiToJson::Result

Author: Ihor Dotsenko

lib/fast_jsonapi/multi_to_json.rb

@@ -12,7 +12,12 @@ module MultiToJson
     # e.g. https://github.com/github/github-ds/blob/fbda5389711edfb4c10b6c6bad19311dfcb1bac1/lib/github/result.rb
     class Result
       def initialize(*rescued_exceptions)
-        rescued_exceptions = [StandardError] if rescued_exceptions.empty?
+        @rescued_exceptions = if rescued_exceptions.empty?
+          [StandardError]
+        else
+          rescued_exceptions
+        end
+
         @value = yield
         @error = nil
       rescue *rescued_exceptions => e
@@ -33,7 +38,8 @@ def value!
 
       def rescue
         return self if ok?
-        Result.new { yield(@error) }
+
+        Result.new(*@rescued_exceptions) { yield(@error) }
       end
     end
 

spec/lib/multi_to_json/result_spec.rb

@@ -0,0 +1,21 @@
+require 'spec_helper'
+
+module FastJsonapi
+  module MultiToJson
+    describe Result do
+      it 'supports chaining of rescues' do
+        expect do
+          Result.new(LoadError) do
+            require '1'
+          end.rescue do
+            require '2'
+          end.rescue do
+            require '3'
+          end.rescue do
+            '4'
+          end
+        end.not_to raise_error
+      end
+    end
+  end
+end