lib/ammeter/rspec/generator/matchers/be_a_migration.rb in ammeter-1.0.0 vs lib/ammeter/rspec/generator/matchers/be_a_migration.rb in ammeter-1.1.0

@@ -5,8 +5,8 @@
     if file_name =~ /\d+_.*\.rb/
       migration_file_path = file_path
     else
       migration_file_path = Dir.glob("#{dirname}/[0-9]*_*.rb").grep(/\d+_#{file_name}$/).first
     end
-    File.exist?(migration_file_path)
+    migration_file_path && File.exist?(migration_file_path)
   end
 end