add specs to search multiple default columns

spec/lib/pg_searchable_new_spec.rb

@@ -47,6 +47,20 @@ describe PgSearchable do
         expect(VectorModel.scope_search("#{record2.id}")).to contain_exactly(record2)
       end
 
+      it 'can search multiple default columns if no column name is used with single search term' do
+        records = VectorModelWithTwoDefaultColumns.create [{ name: 'hamo', value: '5' }, { name: 'meho', value: '20 hamo' }, { name: 'munja-5', value: '300' }]
+
+        expect(VectorModelWithTwoDefaultColumns.scope_search('name:hamo')).to contain_exactly(records[0])
+        expect(VectorModelWithTwoDefaultColumns.scope_search('hamo')).to contain_exactly(records[0], records[1])
+        expect(VectorModelWithTwoDefaultColumns.scope_search('5')).to contain_exactly(records[0], records[2])
+      end
+
+      it 'can search multiple default columns if no column name is used in query containing multiple search terms' do
+        records = VectorModelWithTwoDefaultColumns.create [{ name: 'hamo', value: '9' }, { name: 'meho', value: '5' }, { name: 'oko-9', value: '100' }]
+
+        expect(VectorModelWithTwoDefaultColumns.scope_search('(9 and not name:hamo) or meho')).to contain_exactly(records[2], records[1])
+      end
+
       it 'searches column declared in search term' do
         record1 = VectorModel.create name: 'hamo', value: '-45'
         record2 = VectorModel.create name: 'meho', value: '120'
@@ -144,8 +158,6 @@ describe PgSearchable do
         expect(DynamicModelWithTagValues.scope_search('tag:green or value:"not"')).to contain_exactly(record1, record2)
       end
 
-
-
       it 'can search in referenced column and in model columns with multiple search terms connected with logical operators' do
         record1 = DynamicModelWithTagValues.create name: 'something', value: 'amazing'
         record2 = DynamicModelWithTagValues.create name: 'new record', value: 'not so amazing'