Fix batch_size bugs.

Author: rroblak

lib/seed_dump/dump_methods/enumeration.rb

@@ -58,7 +58,9 @@ def batch_params_from(records, options)
 
         count = records.count
 
-        [((count / batch_size) + 1), batch_size, (count % batch_size)]
+        remainder = count % batch_size
+
+        [((count.to_f / batch_size).ceil), batch_size, (remainder == 0 ? batch_size : remainder)]
       end
 
       def batch_size_from(records, options)

spec/dump_methods_spec.rb

@@ -85,9 +85,14 @@
 
     context 'with a batch_size parameter' do
       it 'should not raise an exception' do
-
         SeedDump.dump(Sample, batch_size: 100)
       end
+
+      it 'should not cause records to not be dumped' do
+        SeedDump.dump(Sample, batch_size: 2).should eq(@expected_output)
+
+        SeedDump.dump(Sample, batch_size: 1).should eq(@expected_output)
+      end
     end
 
     context 'Array' do