couchrest_model/spec/unit/view_spec.rb

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require "spec_helper"
describe CouchRest::Model::Views do
class Unattached < CouchRest::Model::Base
property :title
property :questions
property :professor
view_by :title
# Force the database to always be nil
def self.database
nil
end
end
describe "ClassMethods" do
# NOTE! Add more unit tests!
describe "#view" do
it "should not alter original query" do
options = { :database => DB }
view = Article.view('by_date', options)
options[:database].should eql(DB)
end
end
describe "#has_view?" do
it "should check the design doc" do
Article.design_doc.should_receive(:has_view?).with(:test).and_return(true)
Article.has_view?(:test).should be_true
end
end
describe "#can_reduce_view?" do
it "should check if view has a reduce method" do
Article.design_doc.should_receive(:can_reduce_view?).with(:test).and_return(true)
Article.can_reduce_view?(:test).should be_true
end
end
end
describe "a model with simple views and a default param" do
before(:all) do
Article.all.map{|a| a.destroy(true)}
Article.database.bulk_delete
written_at = Time.now - 24 * 3600 * 7
@titles = ["this and that", "also interesting", "more fun", "some junk"]
@titles.each do |title|
a = Article.new(:title => title)
a.date = written_at
a.save
written_at += 24 * 3600
end
end
it "should return the matching raw view result" do
view = Article.by_date :raw => true
view['rows'].length.should == 4
end
it "should not include non-Articles" do
Article.database.save_doc({"date" => 1})
view = Article.by_date :raw => true
view['rows'].length.should == 4
end
it "should return the matching objects (with default argument :descending => true)" do
articles = Article.by_date
articles.collect{|a|a.title}.should == @titles.reverse
end
it "should allow you to override default args" do
articles = Article.by_date :descending => false
articles.collect{|a|a.title}.should == @titles
end
it "should allow you to create a new view on the fly" do
lambda{Article.by_title}.should raise_error
Article.view_by :title
lambda{Article.by_title}.should_not raise_error
end
end
describe "another model with a simple view" do
before(:all) do
reset_test_db!
%w{aaa bbb ddd eee}.each do |title|
Course.new(:title => title).save
end
end
it "should make the design doc upon first query" do
Course.by_title
doc = Course.design_doc
doc['views']['all']['map'].should include('Course')
end
it "should can query via view" do
# register methods with method-missing, for local dispatch. method
# missing lookup table, no heuristics.
view = Course.view :by_title
designed = Course.by_title
view.should == designed
end
it "should get them" do
rs = Course.by_title
rs.length.should == 4
end
it "should yield" do
courses = []
Course.view(:by_title) do |course|
courses << course
end
courses[0]["doc"]["title"].should =='aaa'
end
it "should yield with by_key method" do
courses = []
Course.by_title do |course|
courses << course
end
courses[0]["doc"]["title"].should =='aaa'
end
end
describe "find a single item using a view" do
before(:all) do
reset_test_db!
%w{aaa bbb ddd eee}.each do |title|
Course.new(:title => title, :active => (title == 'bbb')).save
end
end
it "should return single matched record with find helper" do
course = Course.find_by_title('bbb')
course.should_not be_nil
course.title.should eql('bbb') # Ensure really is a Course!
end
it "should return nil if not found" do
course = Course.find_by_title('fff')
course.should be_nil
end
it "should peform search on view with two properties" do
course = Course.find_by_title_and_active(['bbb', true])
course.should_not be_nil
course.title.should eql('bbb') # Ensure really is a Course!
end
it "should return nil if not found" do
course = Course.find_by_title_and_active(['bbb', false])
course.should be_nil
end
it "should raise exception if view not present" do
lambda { Course.find_by_foobar('123') }.should raise_error(NoMethodError)
end
it "should perform a search directly with specific key" do
course = Course.first_from_view('by_title', 'bbb')
course.title.should eql('bbb')
end
it "should perform a search directly with specific key with options" do
course = Course.first_from_view('by_title', 'bbb', :reverse => true)
course.title.should eql('bbb')
end
it "should perform a search directly with range" do
course = Course.first_from_view('by_title', :startkey => 'bbb', :endkey => 'eee')
course.title.should eql('bbb')
end
it "should perform a search for first when reduce method present" do
course = Course.first_from_view('by_active')
course.should_not be_nil
end
end
describe "a ducktype view" do
before(:all) do
reset_test_db!
@id = DB.save_doc({:dept => true})['id']
end
it "should setup" do
duck = Course.get(@id) # from a different db
duck["dept"].should == true
end
it "should make the design doc" do
@as = Course.by_dept
@doc = Course.design_doc
@doc["views"]["by_dept"]["map"].should_not include("couchrest")
end
it "should not look for class" do
@as = Course.by_dept
@as[0]['_id'].should == @id
end
end
describe "a model class with database provided manually" do
before(:all) do
reset_test_db!
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@db = DB
%w{aaa bbb ddd eee}.each do |title|
u = Unattached.new(:title => title)
u.database = @db
u.save
@first_id ||= u.id
end
end
it "should barf on all if no database given" do
lambda{Unattached.all}.should raise_error
end
it "should query all" do
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rs = Unattached.all :database => @db
rs.length.should == 4
end
it "should barf on query if no database given" do
lambda{Unattached.view :by_title}.should raise_error
end
it "should make the design doc upon first query" do
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Unattached.by_title :database => @db
doc = Unattached.design_doc
doc['views']['all']['map'].should include('Unattached')
end
it "should merge query params" do
rs = Unattached.by_title :database=>@db, :startkey=>"bbb", :endkey=>"eee"
rs.length.should == 3
end
it "should query via view" do
view = Unattached.view :by_title, :database=>@db
designed = Unattached.by_title :database=>@db
view.should == designed
end
it "should yield" do
things = []
Unattached.view(:by_title, :database=>@db) do |thing|
things << thing
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end
things[0]["doc"]["title"].should =='aaa'
end
it "should yield with by_key method" do
things = []
Unattached.by_title(:database=>@db) do |thing|
things << thing
end
things[0]["doc"]["title"].should =='aaa'
end
it "should return nil on get if no database given" do
Unattached.get("aaa").should be_nil
end
it "should barf on get! if no database given" do
lambda{Unattached.get!("aaa")}.should raise_error
end
it "should get from specific database" do
u = Unattached.get(@first_id, @db)
u.title.should == "aaa"
end
it "should barf on first if no database given" do
lambda{Unattached.first}.should raise_error
end
it "should get first" do
u = Unattached.first :database=>@db
u.title.should =~ /\A...\z/
end
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it "should get last" do
u = Unattached.last :database=>@db
u.title.should == "aaa"
end
end
describe "a model with a compound key view" do
before(:all) do
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Article.by_user_id_and_date.each{|a| a.destroy(true)}
Article.database.bulk_delete
written_at = Time.now - 24 * 3600 * 7
@titles = ["uniq one", "even more interesting", "less fun", "not junk"]
@user_ids = ["quentin", "aaron"]
@titles.each_with_index do |title,i|
u = i % 2
a = Article.new(:title => title, :user_id => @user_ids[u])
a.date = written_at
a.save
written_at += 24 * 3600
end
end
it "should create the design doc" do
Article.by_user_id_and_date rescue nil
doc = Article.design_doc
doc['views']['by_date'].should_not be_nil
end
it "should sort correctly" do
articles = Article.by_user_id_and_date
articles.collect{|a|a['user_id']}.should == ['aaron', 'aaron', 'quentin',
'quentin']
articles[1].title.should == 'not junk'
end
it "should be queryable with couchrest options" do
articles = Article.by_user_id_and_date :limit => 1, :startkey => 'quentin'
articles.length.should == 1
articles[0].title.should == "even more interesting"
end
end
describe "with a custom view" do
before(:all) do
@titles = ["very uniq one", "even less interesting", "some fun",
"really junk", "crazy bob"]
@tags = ["cool", "lame"]
@titles.each_with_index do |title,i|
u = i % 2
a = Article.new(:title => title, :tags => [@tags[u]])
a.save
end
end
it "should be available raw" do
view = Article.by_tags :raw => true
view['rows'].length.should == 5
end
it "should be default to :reduce => false" do
ars = Article.by_tags
ars.first.tags.first.should == 'cool'
end
it "should be raw when reduce is true" do
view = Article.by_tags :reduce => true, :group => true
view['rows'].find{|r|r['key'] == 'cool'}['value'].should == 3
end
end
# TODO: moved to Design, delete
describe "adding a view" do
before(:each) do
reset_test_db!
Article.by_date
@original_doc_rev = Article.stored_design_doc['_rev']
@design_docs = Article.database.documents :startkey => "_design/", :endkey => "_design/\u9999"
end
it "should not create a design doc on view definition" do
Article.view_by :created_at
newdocs = Article.database.documents :startkey => "_design/", :endkey => "_design/\u9999"
newdocs["rows"].length.should == @design_docs["rows"].length
end
it "should create a new version of the design document on view access" do
Article.view_by :updated_at
Article.by_updated_at
@original_doc_rev.should_not == Article.stored_design_doc['_rev']
Article.design_doc["views"].keys.should include("by_updated_at")
end
end
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end