require File.expand_path("../../../spec_helper", __FILE__) class DesignViewModel < CouchRest::Model::Base use_database DB property :name property :title design do view :by_name view :by_just_name, :map => "function(doc) { emit(doc['name'], null); }" end end describe "Design View" do describe "(unit tests)" do before :each do @klass = CouchRest::Model::Designs::View end describe ".new" do describe "with invalid parent model" do it "should burn" do lambda { @klass.new(String) }.should raise_exception end end describe "with CouchRest Model" do it "should setup attributes" do @obj = @klass.new(DesignViewModel, {}, 'test_view') @obj.model.should eql(DesignViewModel) @obj.name.should eql('test_view') @obj.query.should be_empty end it "should complain if there is no name" do lambda { @klass.new(DesignViewModel, {}, nil) }.should raise_error end end describe "with previous view instance" do before :each do first = @klass.new(DesignViewModel, {}, 'test_view') @obj = @klass.new(first, {:foo => :bar}) end it "should copy attributes" do @obj.model.should eql(DesignViewModel) @obj.name.should eql('test_view') @obj.query.should eql({:foo => :bar}) end end end describe ".create" do before :each do @design_doc = {} DesignViewModel.stub!(:design_doc).and_return(@design_doc) end it "should add a basic view" do @klass.create(DesignViewModel, 'test_view', :map => 'foo') @design_doc['views']['test_view'].should_not be_nil end it "should auto generate mapping from name" do lambda { @klass.create(DesignViewModel, 'by_title') }.should_not raise_error str = @design_doc['views']['by_title']['map'] str.should include("((doc['model'] == 'DesignViewModel') && (doc['title'] != null))") str.should include("emit(doc['title'], 1);") str = @design_doc['views']['by_title']['reduce'] str.should include("return sum(values);") end it "should auto generate mapping from name with and" do @klass.create(DesignViewModel, 'by_title_and_name') str = @design_doc['views']['by_title_and_name']['map'] str.should include("(doc['title'] != null) && (doc['name'] != null)") str.should include("emit([doc['title'], doc['name']], 1);") str = @design_doc['views']['by_title_and_name']['reduce'] str.should include("return sum(values);") end end describe "instance methods" do before :each do @obj = @klass.new(DesignViewModel, {}, 'test_view') end describe "#rows" do it "should execute query" do @obj.should_receive(:execute).and_return(true) @obj.should_receive(:result).twice.and_return({'rows' => []}) @obj.rows.should be_empty end it "should wrap rows in ViewRow class" do @obj.should_receive(:execute).and_return(true) @obj.should_receive(:result).twice.and_return({'rows' => [{:foo => :bar}]}) CouchRest::Model::Designs::ViewRow.should_receive(:new).with({:foo => :bar}, @obj.model) @obj.rows end end describe "#all" do it "should ensure docs included and call docs" do @obj.should_receive(:include_docs!) @obj.should_receive(:docs) @obj.all end end describe "#docs" do it "should provide docs from rows" do @obj.should_receive(:rows).and_return([]) @obj.docs end it "should cache the results" do @obj.should_receive(:rows).once.and_return([]) @obj.docs @obj.docs end end describe "#first" do it "should provide the first result of loaded query" do @obj.should_receive(:result).and_return(true) @obj.should_receive(:all).and_return([:foo]) @obj.first.should eql(:foo) end it "should perform a query if no results cached" do view = mock('SubView') @obj.should_receive(:result).and_return(nil) @obj.should_receive(:limit).with(1).and_return(view) view.should_receive(:all).and_return([:foo]) @obj.first.should eql(:foo) end end describe "#last" do it "should provide the last result of loaded query" do @obj.should_receive(:result).and_return(true) @obj.should_receive(:all).and_return([:foo, :bar]) @obj.first.should eql(:foo) end it "should perform a query if no results cached" do view = mock('SubView') @obj.should_receive(:result).and_return(nil) @obj.should_receive(:limit).with(1).and_return(view) view.should_receive(:descending).and_return(view) view.should_receive(:all).and_return([:foo, :bar]) @obj.last.should eql(:bar) end end describe "#length" do it "should provide a length from the docs array" do @obj.should_receive(:docs).and_return([1, 2, 3]) @obj.length.should eql(3) end end describe "#count" do it "should raise an error if view prepared for group" do @obj.should_receive(:query).and_return({:group => true}) lambda { @obj.count }.should raise_error(/group/) end it "should return first row value if reduce possible" do view = mock("SubView") row = mock("Row") @obj.should_receive(:can_reduce?).and_return(true) @obj.should_receive(:reduce).and_return(view) view.should_receive(:skip).with(0).and_return(view) view.should_receive(:limit).with(1).and_return(view) view.should_receive(:rows).and_return([row]) row.should_receive(:value).and_return(2) @obj.count.should eql(2) end it "should return 0 if no rows and reduce possible" do view = mock("SubView") @obj.should_receive(:can_reduce?).and_return(true) @obj.should_receive(:reduce).and_return(view) view.should_receive(:skip).with(0).and_return(view) view.should_receive(:limit).with(1).and_return(view) view.should_receive(:rows).and_return([]) @obj.count.should eql(0) end it "should perform limit request for total_rows" do view = mock("SubView") @obj.should_receive(:limit).with(0).and_return(view) view.should_receive(:total_rows).and_return(4) @obj.should_receive(:can_reduce?).and_return(false) @obj.count.should eql(4) end end describe "#empty?" do it "should check the #all method for any results" do all = mock("All") all.should_receive(:empty?).and_return('win') @obj.should_receive(:all).and_return(all) @obj.empty?.should eql('win') end end describe "#each" do it "should call each method on all" do @obj.should_receive(:all).and_return([]) @obj.each end it "should call each and pass block" do set = [:foo, :bar] @obj.should_receive(:all).and_return(set) result = [] @obj.each do |s| result << s end result.should eql(set) end end describe "#offset" do it "should excute" do @obj.should_receive(:execute).and_return({'offset' => 3}) @obj.offset.should eql(3) end end describe "#total_rows" do it "should excute" do @obj.should_receive(:execute).and_return({'total_rows' => 3}) @obj.total_rows.should eql(3) end end describe "#values" do it "should request each row and provide value" do row = mock("Row") row.should_receive(:value).twice.and_return('foo') @obj.should_receive(:rows).and_return([row, row]) @obj.values.should eql(['foo', 'foo']) end end describe "#[]" do it "should execute and provide requested field" do @obj.should_receive(:execute).and_return({'total_rows' => 2}) @obj['total_rows'].should eql(2) end end describe "#info" do it "should raise error" do lambda { @obj.info }.should raise_error end end describe "#database" do it "should update query with value" do @obj.should_receive(:update_query).with({:database => 'foo'}) @obj.database('foo') end end describe "#key" do it "should update query with value" do @obj.should_receive(:update_query).with({:key => 'foo'}) @obj.key('foo') end it "should raise error if startkey set" do @obj.query[:startkey] = 'bar' lambda { @obj.key('foo') }.should raise_error end it "should raise error if endkey set" do @obj.query[:endkey] = 'bar' lambda { @obj.key('foo') }.should raise_error end it "should raise error if both startkey and endkey set" do @obj.query[:startkey] = 'bar' @obj.query[:endkey] = 'bar' lambda { @obj.key('foo') }.should raise_error end it "should raise error if keys set" do @obj.query[:keys] = 'bar' lambda { @obj.key('foo') }.should raise_error end end describe "#startkey" do it "should update query with value" do @obj.should_receive(:update_query).with({:startkey => 'foo'}) @obj.startkey('foo') end it "should raise and error if key set" do @obj.query[:key] = 'bar' lambda { @obj.startkey('foo') }.should raise_error(/View#startkey/) end it "should raise and error if keys set" do @obj.query[:keys] = 'bar' lambda { @obj.startkey('foo') }.should raise_error(/View#startkey/) end end describe "#startkey_doc" do it "should update query with value" do @obj.should_receive(:update_query).with({:startkey_docid => 'foo'}) @obj.startkey_doc('foo') end it "should update query with object id if available" do doc = mock("Document") doc.should_receive(:id).and_return(44) @obj.should_receive(:update_query).with({:startkey_docid => 44}) @obj.startkey_doc(doc) end end describe "#endkey" do it "should update query with value" do @obj.should_receive(:update_query).with({:endkey => 'foo'}) @obj.endkey('foo') end it "should raise and error if key set" do @obj.query[:key] = 'bar' lambda { @obj.endkey('foo') }.should raise_error(/View#endkey/) end it "should raise and error if keys set" do @obj.query[:keys] = 'bar' lambda { @obj.endkey('foo') }.should raise_error(/View#endkey/) end end describe "#endkey_doc" do it "should update query with value" do @obj.should_receive(:update_query).with({:endkey_docid => 'foo'}) @obj.endkey_doc('foo') end it "should update query with object id if available" do doc = mock("Document") doc.should_receive(:id).and_return(44) @obj.should_receive(:update_query).with({:endkey_docid => 44}) @obj.endkey_doc(doc) end end describe "#keys" do it "should update the query" do @obj.should_receive(:update_query).with({:keys => ['foo', 'bar']}) @obj.keys(['foo', 'bar']) end it "should raise and error if key set" do @obj.query[:key] = 'bar' lambda { @obj.keys('foo') }.should raise_error(/View#keys/) end it "should raise and error if startkey or endkey set" do @obj.query[:startkey] = 'bar' lambda { @obj.keys('foo') }.should raise_error(/View#keys/) @obj.query.delete(:startkey) @obj.query[:endkey] = 'bar' lambda { @obj.keys('foo') }.should raise_error(/View#keys/) end end describe "#keys (without parameters)" do it "should request each row and provide key value" do row = mock("Row") row.should_receive(:key).twice.and_return('foo') @obj.should_receive(:rows).and_return([row, row]) @obj.keys.should eql(['foo', 'foo']) end end describe "#descending" do it "should update query" do @obj.should_receive(:update_query).with({:descending => true}) @obj.descending end it "should reverse start and end keys if given" do @obj = @obj.startkey('a').endkey('z') @obj = @obj.descending @obj.query[:endkey].should eql('a') @obj.query[:startkey].should eql('z') end it "should reverse even if start or end nil" do @obj = @obj.startkey('a') @obj = @obj.descending @obj.query[:endkey].should eql('a') @obj.query[:startkey].should be_nil end it "should reverse start_doc and end_doc keys if given" do @obj = @obj.startkey_doc('a').endkey_doc('z') @obj = @obj.descending @obj.query[:endkey_docid].should eql('a') @obj.query[:startkey_docid].should eql('z') end end describe "#limit" do it "should update query with value" do @obj.should_receive(:update_query).with({:limit => 3}) @obj.limit(3) end end describe "#skip" do it "should update query with value" do @obj.should_receive(:update_query).with({:skip => 3}) @obj.skip(3) end it "should update query with default value" do @obj.should_receive(:update_query).with({:skip => 0}) @obj.skip end end describe "#reduce" do it "should update query" do @obj.should_receive(:can_reduce?).and_return(true) @obj.should_receive(:update_query).with({:reduce => true, :include_docs => nil}) @obj.reduce end it "should raise error if query cannot be reduced" do @obj.should_receive(:can_reduce?).and_return(false) lambda { @obj.reduce }.should raise_error end end describe "#group" do it "should update query" do @obj.should_receive(:query).and_return({:reduce => true}) @obj.should_receive(:update_query).with({:group => true}) @obj.group end it "should raise error if query not prepared for reduce" do @obj.should_receive(:query).and_return({:reduce => false}) lambda { @obj.group }.should raise_error end end describe "#group" do it "should update query" do @obj.should_receive(:query).and_return({:reduce => true}) @obj.should_receive(:update_query).with({:group => true}) @obj.group end it "should raise error if query not prepared for reduce" do @obj.should_receive(:query).and_return({:reduce => false}) lambda { @obj.group }.should raise_error end end describe "#group_level" do it "should update query" do @obj.should_receive(:group).and_return(@obj) @obj.should_receive(:update_query).with({:group_level => 3}) @obj.group_level(3) end end describe "#include_docs" do it "should call include_docs! on new view" do @obj.should_receive(:update_query).and_return(@obj) @obj.should_receive(:include_docs!) @obj.include_docs end end describe "#reset!" do it "should empty all cached data" do @obj.should_receive(:result=).with(nil) @obj.instance_exec { @rows = 'foo'; @docs = 'foo' } @obj.reset! @obj.instance_exec { @rows }.should be_nil @obj.instance_exec { @docs }.should be_nil end end #### PROTECTED METHODS describe "#include_docs!" do it "should set query value" do @obj.should_receive(:result).and_return(false) @obj.should_not_receive(:reset!) @obj.send(:include_docs!) @obj.query[:include_docs].should be_true end it "should reset if result and no docs" do @obj.should_receive(:result).and_return(true) @obj.should_receive(:include_docs?).and_return(false) @obj.should_receive(:reset!) @obj.send(:include_docs!) @obj.query[:include_docs].should be_true end it "should raise an error if view is reduced" do @obj.query[:reduce] = true lambda { @obj.send(:include_docs!) }.should raise_error end end describe "#include_docs?" do it "should return true if set" do @obj.should_receive(:query).and_return({:include_docs => true}) @obj.send(:include_docs?).should be_true end it "should return false if not set" do @obj.should_receive(:query).and_return({}) @obj.send(:include_docs?).should be_false @obj.should_receive(:query).and_return({:include_docs => false}) @obj.send(:include_docs?).should be_false end end describe "#update_query" do it "returns a new instance of view" do @obj.send(:update_query).object_id.should_not eql(@obj.object_id) end it "returns a new instance of view with extra parameters" do new_obj = @obj.send(:update_query, {:foo => :bar}) new_obj.query[:foo].should eql(:bar) end end describe "#design_doc" do it "should call design_doc on model" do @obj.model.should_receive(:design_doc) @obj.send(:design_doc) end end describe "#can_reduce?" do it "should check and prove true" do @obj.should_receive(:name).and_return('test_view') @obj.should_receive(:design_doc).and_return({'views' => {'test_view' => {'reduce' => 'foo'}}}) @obj.send(:can_reduce?).should be_true end it "should check and prove false" do @obj.should_receive(:name).and_return('test_view') @obj.should_receive(:design_doc).and_return({'views' => {'test_view' => {'reduce' => nil}}}) @obj.send(:can_reduce?).should be_false end end describe "#execute" do before :each do # disable real execution! @design_doc = mock("DesignDoc") @design_doc.stub!(:view_on) @obj.model.stub!(:save_design_doc) @obj.model.stub!(:design_doc).and_return(@design_doc) end it "should return previous result if set" do @obj.result = "foo" @obj.send(:execute).should eql('foo') end it "should raise issue if no database" do @obj.should_receive(:query).and_return({:database => nil}) model = mock("SomeModel") model.should_receive(:database).and_return(nil) @obj.should_receive(:model).and_return(model) lambda { @obj.send(:execute) }.should raise_error end it "should delete the reduce option if not going to be used" do @obj.should_receive(:can_reduce?).and_return(false) @obj.query.should_receive(:delete).with(:reduce) @obj.send(:execute) end it "should call to save the design document" do @obj.should_receive(:can_reduce?).and_return(false) @obj.model.should_receive(:save_design_doc).with(DB) @obj.send(:execute) end it "should populate the results" do @obj.should_receive(:can_reduce?).and_return(true) @design_doc.should_receive(:view_on).and_return('foos') @obj.send(:execute) @obj.result.should eql('foos') end it "should remove nil values from query" do @obj.should_receive(:can_reduce?).and_return(true) @obj.stub!(:use_database).and_return('database') @obj.query = {:reduce => true, :limit => nil, :skip => nil} @design_doc.should_receive(:view_on).with('database', 'test_view', {:reduce => true}) @obj.send(:execute) end end describe "pagination methods" do describe "#page" do it "should call limit and skip" do @obj.should_receive(:limit).with(25).and_return(@obj) @obj.should_receive(:skip).with(25).and_return(@obj) @obj.page(2) end end describe "#per" do it "should raise an error if page not called before hand" do lambda { @obj.per(12) }.should raise_error end it "should not do anything if number less than or eql 0" do view = @obj.page(1) view.per(0).should eql(view) end it "should set limit and update skip" do view = @obj.page(2).per(10) view.query[:skip].should eql(10) view.query[:limit].should eql(10) end end describe "#total_count" do it "set limit and skip to nill and perform count" do @obj.should_receive(:limit).with(nil).and_return(@obj) @obj.should_receive(:skip).with(nil).and_return(@obj) @obj.should_receive(:count).and_return(5) @obj.total_count.should eql(5) @obj.total_count.should eql(5) # Second to test caching end end describe "#num_pages" do it "should use total_count and limit_value" do @obj.should_receive(:total_count).and_return(200) @obj.should_receive(:limit_value).and_return(25) @obj.num_pages.should eql(8) end end describe "#current_page" do it "should use offset and limit" do @obj.should_receive(:offset_value).and_return(25) @obj.should_receive(:limit_value).and_return(25) @obj.current_page.should eql(2) end end end end end describe "ViewRow" do before :all do @klass = CouchRest::Model::Designs::ViewRow end describe "intialize" do it "should store reference to model" do obj = @klass.new({}, "model") obj.model.should eql('model') end it "should copy details from hash" do obj = @klass.new({:foo => :bar, :test => :example}, "") obj[:foo].should eql(:bar) obj[:test].should eql(:example) end end describe "running" do before :each do end it "should provide id" do obj = @klass.new({'id' => '123456'}, 'model') obj.id.should eql('123456') end it "should provide key" do obj = @klass.new({'key' => 'thekey'}, 'model') obj.key.should eql('thekey') end it "should provide the value" do obj = @klass.new({'value' => 'thevalue'}, 'model') obj.value.should eql('thevalue') end it "should provide the raw document" do obj = @klass.new({'doc' => 'thedoc'}, 'model') obj.raw_doc.should eql('thedoc') end it "should instantiate a new document" do hash = {'doc' => {'_id' => '12345', 'name' => 'sam'}} obj = @klass.new(hash, DesignViewModel) doc = mock('DesignViewModel') obj.model.should_receive(:build_from_database).with(hash['doc']).and_return(doc) obj.doc.should eql(doc) end it "should try to load from id if no document" do hash = {'id' => '12345', 'value' => 5} obj = @klass.new(hash, DesignViewModel) doc = mock('DesignViewModel') obj.model.should_receive(:get).with('12345').and_return(doc) obj.doc.should eql(doc) end it "should try to load linked document if available" do hash = {'id' => '12345', 'value' => {'_id' => '54321'}} obj = @klass.new(hash, DesignViewModel) doc = mock('DesignViewModel') obj.model.should_receive(:get).with('54321').and_return(doc) obj.doc.should eql(doc) end it "should try to return nil for document if none available" do hash = {'value' => 23} # simulate reduce obj = @klass.new(hash, DesignViewModel) doc = mock('DesignViewModel') obj.model.should_not_receive(:get) obj.doc.should be_nil end end end describe "scenarios" do before :all do @objs = [ {:name => "Judith"}, {:name => "Lorena"}, {:name => "Peter"}, {:name => "Sam"}, {:name => "Vilma"} ].map{|h| DesignViewModel.create(h)} end describe "loading documents" do it "should return first" do DesignViewModel.by_name.first.name.should eql("Judith") end it "should return last" do DesignViewModel.by_name.last.name.should eql("Vilma") end it "should allow multiple results" do view = DesignViewModel.by_name.limit(3) view.total_rows.should eql(5) view.last.name.should eql("Peter") view.all.length.should eql(3) end end describe "index information" do it "should provide total_rows" do DesignViewModel.by_name.total_rows.should eql(5) end it "should provide total_rows" do DesignViewModel.by_name.total_rows.should eql(5) end it "should provide an offset" do DesignViewModel.by_name.offset.should eql(0) end it "should provide a set of keys" do DesignViewModel.by_name.limit(2).keys.should eql(["Judith", "Lorena"]) end end describe "viewing" do it "should load views with no reduce method" do docs = DesignViewModel.by_just_name.all docs.length.should eql(5) end it "should load documents by specific keys" do docs = DesignViewModel.by_name.keys(["Judith", "Peter"]).all docs[0].name.should eql("Judith") docs[1].name.should eql("Peter") end it "should provide count even if limit or skip set" do docs = DesignViewModel.by_name.limit(20).skip(2) docs.count.should eql(5) end end describe "pagination" do before :all do DesignViewModel.paginates_per 3 end before :each do @view = DesignViewModel.by_name.page(1) end it "should calculate number of pages" do @view.num_pages.should eql(2) end it "should return results from first page" do @view.all.first.name.should eql('Judith') @view.all.last.name.should eql('Peter') end it "should return results from second page" do @view.page(2).all.first.name.should eql('Sam') @view.page(2).all.last.name.should eql('Vilma') end it "should allow overriding per page count" do @view = @view.per(10) @view.num_pages.should eql(1) @view.all.last.name.should eql('Vilma') end end end end