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require 'helper'
require 'lib/activerecord_test_case'
require 'will_paginate'
WillPaginate.enable_activerecord
WillPaginate.enable_named_scope
class FinderTest < ActiveRecordTestCase
fixtures :topics, :replies, :users, :projects, :developers_projects
def test_new_methods_presence
assert_respond_to_all Topic, %w(per_page paginate paginate_by_sql)
end
def test_simple_paginate
assert_queries(1) do
entries = Topic.paginate :page => nil
assert_equal 1, entries.current_page
assert_equal 1, entries.total_pages
assert_equal 4, entries.size
end
assert_queries(2) do
entries = Topic.paginate :page => 2
assert_equal 1, entries.total_pages
assert entries.empty?
end
end
def test_parameter_api
# :page parameter in options is required!
assert_raise(ArgumentError){ Topic.paginate }
assert_raise(ArgumentError){ Topic.paginate({}) }
# explicit :all should not break anything
assert_equal Topic.paginate(:page => nil), Topic.paginate(:all, :page => 1)
# :count could be nil and we should still not cry
assert_nothing_raised { Topic.paginate :page => 1, :count => nil }
end
def test_paginate_with_per_page
entries = Topic.paginate :page => 1, :per_page => 1
assert_equal 1, entries.size
assert_equal 4, entries.total_pages
# Developer class has explicit per_page at 10
entries = Developer.paginate :page => 1
assert_equal 10, entries.size
assert_equal 2, entries.total_pages
entries = Developer.paginate :page => 1, :per_page => 5
assert_equal 11, entries.total_entries
assert_equal 5, entries.size
assert_equal 3, entries.total_pages
end
def test_paginate_with_order
entries = Topic.paginate :page => 1, :order => 'created_at desc'
expected = [topics(:futurama), topics(:harvey_birdman), topics(:rails), topics(:ar)].reverse
assert_equal expected, entries.to_a
assert_equal 1, entries.total_pages
end
def test_paginate_with_conditions
entries = Topic.paginate :page => 1, :conditions => ["created_at > ?", 30.minutes.ago]
expected = [topics(:rails), topics(:ar)]
assert_equal expected, entries.to_a
assert_equal 1, entries.total_pages
end
def test_paginate_with_include_and_conditions
entries = Topic.paginate \
:page => 1,
:include => :replies,
:conditions => "replies.content LIKE 'Bird%' ",
:per_page => 10
expected = Topic.find :all,
:include => 'replies',
:conditions => "replies.content LIKE 'Bird%' ",
:limit => 10
assert_equal expected, entries.to_a
assert_equal 1, entries.total_entries
end
def test_paginate_with_include_and_order
entries = nil
assert_queries(2) do
entries = Topic.paginate \
:page => 1,
:include => :replies,
:order => 'replies.created_at asc, topics.created_at asc',
:per_page => 10
end
expected = Topic.find :all,
:include => 'replies',
:order => 'replies.created_at asc, topics.created_at asc',
:limit => 10
assert_equal expected, entries.to_a
assert_equal 4, entries.total_entries
end
def test_paginate_associations_with_include
entries, project = nil, projects(:active_record)
assert_nothing_raised "THIS IS A BUG in Rails 1.2.3 that was fixed in [7326]. " +
"Please upgrade to a newer version of Rails." do
entries = project.topics.paginate \
:page => 1,
:include => :replies,
:conditions => "replies.content LIKE 'Nice%' ",
:per_page => 10
end
expected = Topic.find :all,
:include => 'replies',
:conditions => "project_id = #{project.id} AND replies.content LIKE 'Nice%' ",
:limit => 10
assert_equal expected, entries.to_a
end
def test_paginate_associations
dhh = users :david
expected_name_ordered = [projects(:action_controller), projects(:active_record)]
expected_id_ordered = [projects(:active_record), projects(:action_controller)]
assert_queries(2) do
# with association-specified order
entries = dhh.projects.paginate(:page => 1)
assert_equal expected_name_ordered, entries
assert_equal 2, entries.total_entries
end
# with explicit order
entries = dhh.projects.paginate(:page => 1, :order => 'projects.id')
assert_equal expected_id_ordered, entries
assert_equal 2, entries.total_entries
assert_nothing_raised { dhh.projects.find(:all, :order => 'projects.id', :limit => 4) }
entries = dhh.projects.paginate(:page => 1, :order => 'projects.id', :per_page => 4)
assert_equal expected_id_ordered, entries
# has_many with implicit order
topic = Topic.find(1)
expected = [replies(:spam), replies(:witty_retort)]
assert_equal expected.map(&:id).sort, topic.replies.paginate(:page => 1).map(&:id).sort
assert_equal expected.reverse, topic.replies.paginate(:page => 1, :order => 'replies.id ASC')
end
def test_paginate_association_extension
project = Project.find(:first)
assert_queries(2) do
entries = project.replies.paginate_recent :page => 1
assert_equal [replies(:brave)], entries
end
end
def test_paginate_with_joins
entries = nil
assert_queries(1) do
entries = Developer.paginate :page => 1,
:joins => 'LEFT JOIN developers_projects ON users.id = developers_projects.developer_id',
:conditions => 'project_id = 1'
assert_equal 2, entries.size
developer_names = entries.map &:name
assert developer_names.include?('David')
assert developer_names.include?('Jamis')
end
assert_queries(1) do
expected = entries.to_a
entries = Developer.paginate :page => 1,
:joins => 'LEFT JOIN developers_projects ON users.id = developers_projects.developer_id',
:conditions => 'project_id = 1', :count => { :select => "users.id" }
assert_equal expected, entries.to_a
assert_equal 2, entries.total_entries
end
end
def test_paginate_with_group
entries = nil
assert_queries(1) do
entries = Developer.paginate :page => 1, :per_page => 10,
:group => 'salary', :select => 'salary', :order => 'salary'
end
expected = [ users(:david), users(:jamis), users(:dev_10), users(:poor_jamis) ].map(&:salary).sort
assert_equal expected, entries.map(&:salary)
end
def test_paginate_with_dynamic_finder
expected = [replies(:witty_retort), replies(:spam)]
assert_equal expected, Reply.paginate_by_topic_id(1, :page => 1, :order => :created_at)
entries = Developer.paginate :conditions => { :salary => 100000 }, :page => 1, :per_page => 5
assert_equal 8, entries.total_entries
assert_equal entries, Developer.paginate_by_salary(100000, :page => 1, :per_page => 5)
# dynamic finder + conditions
entries = Developer.paginate_by_salary(100000, :page => 1,
:conditions => ['id > ?', 6])
assert_equal 4, entries.total_entries
assert_equal (7..10).to_a, entries.map(&:id)
assert_raises NoMethodError do
Developer.paginate_by_inexistent_attribute 100000, :page => 1
end
end
def test_scoped_paginate
entries = Developer.with_poor_ones { Developer.paginate :page => 1 }
assert_equal 2, entries.size
assert_equal 2, entries.total_entries
end
## named_scope ##
def test_paginate_in_named_scope
entries = Developer.poor.paginate :page => 1, :per_page => 1
assert_equal 1, entries.size
assert_equal 2, entries.total_entries
end
def test_paginate_in_named_scope_on_habtm_association
project = projects(:active_record)
assert_queries(2) do
entries = project.developers.poor.paginate :page => 1, :per_page => 1
assert_equal 1, entries.size, 'one developer should be found'
assert_equal 1, entries.total_entries, 'only one developer should be found'
end
end
def test_paginate_in_named_scope_on_hmt_association
project = projects(:active_record)
expected = [replies(:brave)]
assert_queries(2) do
entries = project.replies.recent.paginate :page => 1, :per_page => 1
assert_equal expected, entries
assert_equal 1, entries.total_entries, 'only one reply should be found'
end
end
def test_paginate_in_named_scope_on_has_many_association
project = projects(:active_record)
expected = [topics(:ar)]
assert_queries(2) do
entries = project.topics.mentions_activerecord.paginate :page => 1, :per_page => 1
assert_equal expected, entries
assert_equal 1, entries.total_entries, 'only one topic should be found'
end
end
def test_named_scope_with_include
project = projects(:active_record)
entries = project.topics.with_replies_starting_with('AR ').paginate(:page => 1, :per_page => 1)
assert_equal 1, entries.size
end
## misc ##
def test_count_and_total_entries_options_are_mutually_exclusive
e = assert_raise ArgumentError do
Developer.paginate :page => 1, :count => {}, :total_entries => 1
end
assert_match /exclusive/, e.to_s
end
def test_readonly
assert_nothing_raised { Developer.paginate :readonly => true, :page => 1 }
end
# this functionality is temporarily removed
def xtest_pagination_defines_method
pager = "paginate_by_created_at"
assert !User.methods.include_method?(pager), "User methods should not include `#{pager}` method"
# paginate!
assert 0, User.send(pager, nil, :page => 1).total_entries
# the paging finder should now be defined
assert User.methods.include_method?(pager), "`#{pager}` method should be defined on User"
end
# Is this Rails 2.0? Find out by testing find_all which was removed in [6998]
unless ActiveRecord::Base.respond_to? :find_all
def test_paginate_array_of_ids
# AR finders also accept arrays of IDs
# (this was broken in Rails before [6912])
assert_queries(1) do
entries = Developer.paginate((1..8).to_a, :per_page => 3, :page => 2, :order => 'id')
assert_equal (4..6).to_a, entries.map(&:id)
assert_equal 8, entries.total_entries
end
end
end
uses_mocha 'internals' do
def test_implicit_all_with_dynamic_finders
Topic.expects(:find_all_by_foo).returns([])
Topic.expects(:count).returns(0)
Topic.paginate_by_foo :page => 2
end
def test_guessing_the_total_count
Topic.expects(:find).returns(Array.new(2))
Topic.expects(:count).never
entries = Topic.paginate :page => 2, :per_page => 4
assert_equal 6, entries.total_entries
end
def test_guessing_that_there_are_no_records
Topic.expects(:find).returns([])
Topic.expects(:count).never
entries = Topic.paginate :page => 1, :per_page => 4
assert_equal 0, entries.total_entries
end
def test_extra_parameters_stay_untouched
Topic.expects(:find).with(:all, {:foo => 'bar', :limit => 4, :offset => 0 }).returns(Array.new(5))
Topic.expects(:count).with({:foo => 'bar'}).returns(1)
Topic.paginate :foo => 'bar', :page => 1, :per_page => 4
end
def test_count_skips_select
Developer.stubs(:find).returns([])
Developer.expects(:count).with({}).returns(0)
Developer.paginate :select => 'salary', :page => 2
end
def test_count_select_when_distinct
Developer.stubs(:find).returns([])
Developer.expects(:count).with(:select => 'DISTINCT salary').returns(0)
Developer.paginate :select => 'DISTINCT salary', :page => 2
end
def test_count_with_scoped_select_when_distinct
Developer.stubs(:find).returns([])
Developer.expects(:count).with(:select => 'DISTINCT users.id').returns(0)
Developer.distinct.paginate :page => 2
end
def test_should_use_scoped_finders_if_present
# scope-out compatibility
Topic.expects(:find_best).returns(Array.new(5))
Topic.expects(:with_best).returns(1)
Topic.paginate_best :page => 1, :per_page => 4
end
def test_paginate_by_sql
sql = "SELECT * FROM users WHERE type = 'Developer' ORDER BY id"
entries = Developer.paginate_by_sql(sql, :page => 2, :per_page => 3)
assert_equal 11, entries.total_entries
assert_equal [users(:dev_4), users(:dev_5), users(:dev_6)], entries
end
def test_paginate_by_sql_respects_total_entries_setting
sql = "SELECT * FROM users"
entries = Developer.paginate_by_sql(sql, :page => 1, :total_entries => 999)
assert_equal 999, entries.total_entries
end
def test_paginate_by_sql_strips_order_by_when_counting
Developer.expects(:find_by_sql).returns([])
Developer.expects(:count_by_sql).with("SELECT COUNT(*) FROM (sql\n ) AS count_table").returns(0)
Developer.paginate_by_sql "sql\n ORDER\nby foo, bar, `baz` ASC", :page => 2
end
# TODO: counts are still wrong
def test_ability_to_use_with_custom_finders
# acts_as_taggable defines find_tagged_with(tag, options)
Topic.expects(:find_tagged_with).with('will_paginate', :offset => 5, :limit => 5).returns([])
Topic.expects(:count).with({}).returns(0)
Topic.paginate_tagged_with 'will_paginate', :page => 2, :per_page => 5
end
def test_array_argument_doesnt_eliminate_count
ids = (1..8).to_a
Developer.expects(:find_all_by_id).returns([])
Developer.expects(:count).returns(0)
Developer.paginate_by_id(ids, :per_page => 3, :page => 2, :order => 'id')
end
def test_paginating_finder_doesnt_mangle_options
Developer.expects(:find).returns([])
options = { :page => 1, :per_page => 2, :foo => 'bar' }
options_before = options.dup
Developer.paginate(options)
assert_equal options_before, options
end
def test_paginate_by_sql_doesnt_change_original_query
query = 'SQL QUERY'
original_query = query.dup
Developer.expects(:find_by_sql).returns([])
Developer.paginate_by_sql query, :page => 1
assert_equal original_query, query
end
def test_paginated_each
collection = stub('collection', :size => 5, :empty? => false, :per_page => 5)
collection.expects(:each).times(2).returns(collection)
last_collection = stub('collection', :size => 4, :empty? => false, :per_page => 5)
last_collection.expects(:each).returns(last_collection)
params = { :order => 'id', :total_entries => 0 }
Developer.expects(:paginate).with(params.merge(:page => 2)).returns(collection)
Developer.expects(:paginate).with(params.merge(:page => 3)).returns(collection)
Developer.expects(:paginate).with(params.merge(:page => 4)).returns(last_collection)
assert_equal 14, Developer.paginated_each(:page => '2') { }
end
def test_paginated_each_with_named_scope
assert_equal 2, Developer.poor.paginated_each(:per_page => 1) {
assert_equal 11, Developer.count
}
end
# detect ActiveRecord 2.1
if ActiveRecord::Base.private_methods.include_method?(:references_eager_loaded_tables?)
def test_removes_irrelevant_includes_in_count
Developer.expects(:find).returns([1])
Developer.expects(:count).with({}).returns(0)
Developer.paginate :page => 1, :per_page => 1, :include => :projects
end
def test_doesnt_remove_referenced_includes_in_count
Developer.expects(:find).returns([1])
Developer.expects(:count).with({ :include => :projects, :conditions => 'projects.id > 2' }).returns(0)
Developer.paginate :page => 1, :per_page => 1,
:include => :projects, :conditions => 'projects.id > 2'
end
end
def test_paginate_from
result = Developer.paginate(:from => 'users', :page => 1, :per_page => 1)
assert_equal 1, result.size
end
def test_hmt_with_include
# ticket #220
reply = projects(:active_record).replies.find(:first, :order => 'replies.id')
assert_equal replies(:decisive), reply
# ticket #223
Project.find(1, :include => :replies)
# I cannot reproduce any of the failures from those reports :(
end
def test_hmt_with_uniq
project = Project.find(1)
result = project.unique_replies.paginate :page => 1, :per_page => 1,
:order => 'replies.id'
assert_equal replies(:decisive), result.first
end
end
end
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