[FIX-1554] fixture_file_upload cannot find files

Author: Laurent Cobos

lib/rspec/rails.rb

@@ -9,6 +9,7 @@
 require 'rspec/rails/view_rendering'
 require 'rspec/rails/matchers'
 require 'rspec/rails/fixture_support'
+require 'rspec/rails/fixture_file_upload_support'
 require 'rspec/rails/file_fixture_support'
 require 'rspec/rails/example'
 require 'rspec/rails/vendor/capybara'

lib/rspec/rails/configuration.rb

@@ -83,6 +83,8 @@ def self.initialize_configuration(config)
       if ::Rails::VERSION::STRING > '5'
         config.add_setting :file_fixture_path, :default => 'spec/fixtures/files'
         config.include RSpec::Rails::FileFixtureSupport
+      elsif ::Rails::VERSION::STRING >= '3'
+        config.include RSpec::Rails::FixtureFileUploadSupport
       end
       # This allows us to expose `render_views` as a config option even though it
       # breaks the convention of other options by using `render_views` as a

lib/rspec/rails/fixture_file_upload_support.rb

@@ -0,0 +1,38 @@
+require 'singleton'
+
+module RSpec
+  module Rails
+    # @private
+    module FixtureFileUploadSupport
+      extend ActiveSupport::Concern
+
+      included do
+        delegate :fixture_file_upload, :to => :rails_test_wrapper
+      end
+
+      private
+
+        def rails_test_wrapper
+          resolved_fixture_path = (fixture_path || RSpec.configuration.fixture_path || '')
+          RailsTestWrapper.fixture_path = File.join(resolved_fixture_path, '')
+          RailsTestWrapper.instance
+        end
+
+        class RailsTestWrapper
+          include Singleton
+          cattr_accessor :fixture_path
+
+          def self.fixture_path=(value)
+            if ActionController::TestCase.respond_to?(:fixture_path)
+              ActionController::TestCase.fixture_path = value
+            end
+            @@fixture_path = value
+          end
+
+          if defined?(ActionDispatch::TestProcess)
+            include ActionDispatch::TestProcess
+          end
+        end
+    end
+  end
+end

spec/rspec/rails/fixture_file_upload_support_spec.rb

@@ -0,0 +1,30 @@
+require 'spec_helper'
+
+describe RSpec::Rails::FixtureFileUploadSupport do
+  context 'with fixture path set in config' do
+    before { RSpec.configuration.fixture_path = File.dirname(__FILE__) }
+
+    it 'resolves fixture file' do
+      expect(fixture_file_upload_resolved.run).to be true
+    end
+  end
+
+  context 'with fixture path set in spec' do
+    it 'resolves fixture file' do
+      expect(fixture_file_upload_resolved(File.dirname(__FILE__)).run).to be true
+    end
+  end
+
+  def fixture_file_upload_resolved(fixture_path = nil)
+    RSpec::Core::ExampleGroup.describe do
+      include RSpec::Rails::FixtureFileUploadSupport
+
+      self.fixture_path = fixture_path if fixture_path
+
+      it 'supports fixture file upload' do
+        file = fixture_file_upload(File.basename(__FILE__))
+        expect(file.read).to match(/describe FixtureFileUploadSupport/im)
+      end
+    end
+  end
+end