require File.dirname(__FILE__) + '/../../spec_helper' describe CouchRest::Pager do before(:all) do @cr = CouchRest.new(COUCHHOST) @db = @cr.database(TESTDB) @db.delete! rescue nil @db = @cr.create_db(TESTDB) rescue nil @pager = CouchRest::Pager.new(@db) end after(:all) do begin @db.delete! rescue RestClient::Request::RequestFailed end end it "should store the db" do @pager.db.should == @db end describe "paging all docs" do before(:all) do @docs = [] 100.times do |i| @docs << ({:number => (i % 10)}) end @db.bulk_save(@docs) end it "should yield total_docs / limit times" do n = 0 @pager.all_docs(10) do |doc| n += 1 end n.should == 10 end it "should yield each docrow group without duplicate docs" do docids = {} @pager.all_docs(10) do |docrows| docrows.each do |row| docids[row['id']].should be_nil docids[row['id']] = true end end docids.keys.length.should == 100 end it "should yield each docrow group" do @pager.all_docs(10) do |docrows| doc = @db.get(docrows[0]['id']) doc['number'].class.should == Fixnum end end end describe "Pager with a view and docs" do before(:all) do @docs = [] 100.times do |i| @docs << ({:number => (i % 10)}) end @db.bulk_save(@docs) @db.save({ '_id' => '_design/magic', 'views' => { 'number' => { 'map' => 'function(doc){emit(doc.number,null)}' } } }) end it "should have docs" do @docs.length.should == 100 @db.documents['rows'].length.should == 101 end it "should have a view" do @db.view('magic/number', :limit => 10)['rows'][0]['key'].should == 0 end it "should yield once per key" do results = {} @pager.key_reduce('magic/number', 20) do |k,vs| results[k] = vs.length end results[0].should == 10 results[3].should == 10 end it "with a small step size should yield once per key" do results = {} @pager.key_reduce('magic/number', 7) do |k,vs| results[k] = vs.length end results[0].should == 10 results[3].should == 10 results[9].should == 10 end it "with a large step size should yield once per key" do results = {} @pager.key_reduce('magic/number', 1000) do |k,vs| results[k] = vs.length end results[0].should == 10 results[3].should == 10 results[9].should == 10 end it "with a begin and end should only yield in the range (and leave out the lastkey)" do results = {} @pager.key_reduce('magic/number', 1000, 4, 7) do |k,vs| results[k] = vs.length end results[0].should be_nil results[4].should == 10 results[6].should == 10 results[7].should be_nil results[8].should be_nil results[9].should be_nil end end end