fix(account-client): retrieve all objects from source index (#399)

* fix(account-client): retrieve all objects from source index

* fix(account-client): udpates tests

Author: chloelbn

lib/algolia/account_client.rb

@@ -55,7 +55,7 @@ def copy_index(source_index, destination_index, request_options = {})
         batch_size = 1000
         count = 0
 
-        source_index.browse()['hits'].each do |obj|
+        source_index.browse do |obj|
           batch << obj
           count += 1
 

spec/account_client_spec.rb

@@ -47,9 +47,7 @@
 
   it 'should perform a cross app copy index and assert that destination must not exist' do
 
-    @index_1.save_objects! ([
-        {:objectID => 'one'},
-    ])
+    @index_1.save_objects!(1.upto(1500).map { |i| { :objectID => i, :i => i } })
 
     @index_1.batch_rules! ([
         {
@@ -67,9 +65,8 @@
 
     Algolia::AccountClient.copy_index!(@index_1, @index_3)
 
-    res = @index_3.search('');
-    res['nbHits'].should eq(1)
-    res['hits'][0]['objectID'].should eq('one')
+    res = @index_3.search('')
+    res['nbHits'].should eq(1500)
 
     res = @index_3.search_rules('')['hits']
     res.size.should eq(1)