Class ActiveRecord::RelationTest < ActiveRecord::TestCase

# File activerecord/test/cases/relation_test.rb, line 204
def self.sanitize_sql(args)
  raise unless args == ['foo = ?', 'bar']
  'foo = bar'
end

# File activerecord/test/cases/relation_test.rb, line 127
def test_bad_constants_raise_errors
  assert_raises(NameError) do
    ActiveRecord::Relation::HelloWorld
  end
end

# File activerecord/test/cases/relation_test.rb, line 29
def test_construction
  relation = Relation.new(FakeKlass, :b, nil)
  assert_equal FakeKlass, relation.klass
  assert_equal :b, relation.table
  assert !relation.loaded, 'relation is not loaded'
end

# File activerecord/test/cases/relation_test.rb, line 101
def test_create_with_value
  relation = Relation.new(Post, Post.arel_table, Post.predicate_builder)
  hash = { :hello => 'world' }
  relation.create_with_value = hash
  assert_equal hash, relation.scope_for_create
end

# File activerecord/test/cases/relation_test.rb, line 108
def test_create_with_value_with_wheres
  relation = Relation.new(Post, Post.arel_table, Post.predicate_builder)
  relation.where! relation.table[:id].eq(10)
  relation.create_with_value = {:hello => 'world'}
  assert_equal({:hello => 'world', :id => 10}, relation.scope_for_create)
end

# File activerecord/test/cases/relation_test.rb, line 138
def test_eager_load_values
  relation = Relation.new(FakeKlass, :b, nil)
  relation.eager_load! :b
  assert relation.eager_loading?
end

# File activerecord/test/cases/relation_test.rb, line 133
def test_empty_eager_loading?
  relation = Relation.new(FakeKlass, :b, nil)
  assert !relation.eager_loading?
end

# File activerecord/test/cases/relation_test.rb, line 65
def test_empty_where_values_hash
  relation = Relation.new(FakeKlass, :b, nil)
  assert_equal({}, relation.where_values_hash)
end

# File activerecord/test/cases/relation_test.rb, line 60
def test_extensions
  relation = Relation.new(FakeKlass, :b, nil)
  assert_equal [], relation.extensions
end

# File activerecord/test/cases/relation_test.rb, line 70
def test_has_values
  relation = Relation.new(Post, Post.arel_table, Post.predicate_builder)
  relation.where! relation.table[:id].eq(10)
  assert_equal({:id => 10}, relation.where_values_hash)
end

# File activerecord/test/cases/relation_test.rb, line 41
def test_initialize_single_values
  relation = Relation.new(FakeKlass, :b, nil)
  (Relation::SINGLE_VALUE_METHODS - [:create_with]).each do |method|
    assert_nil relation.send("#{method}_value"), method.to_s
  end
  value = relation.create_with_value
  assert_equal({}, value)
  assert_predicate value, :frozen?
end

# File activerecord/test/cases/relation_test.rb, line 239
def test_merge_raises_with_invalid_argument
  assert_raises ArgumentError do
    relation = Relation.new(FakeKlass, :b, nil)
    relation.merge(true)
  end
end

# File activerecord/test/cases/relation_test.rb, line 215
def test_merging_readonly_false
  relation = Relation.new(FakeKlass, :b, nil)
  readonly_false_relation = relation.readonly(false)
  # test merging in both directions
  assert_equal false, relation.merge(readonly_false_relation).readonly_value
  assert_equal false, readonly_false_relation.merge(relation).readonly_value
end

# File activerecord/test/cases/relation_test.rb, line 51
def test_multi_value_initialize
  relation = Relation.new(FakeKlass, :b, nil)
  Relation::MULTI_VALUE_METHODS.each do |method|
    values = relation.send("#{method}_values")
    assert_equal [], values, method.to_s
    assert_predicate values, :frozen?, method.to_s
  end
end

# File activerecord/test/cases/relation_test.rb, line 144
def test_references_values
  relation = Relation.new(FakeKlass, :b, nil)
  assert_equal [], relation.references_values
  relation = relation.references(:foo).references(:omg, :lol)
  assert_equal ['foo', 'omg', 'lol'], relation.references_values
end

# File activerecord/test/cases/relation_test.rb, line 151
def test_references_values_dont_duplicate
  relation = Relation.new(FakeKlass, :b, nil)
  relation = relation.references(:foo).references(:foo)
  assert_equal ['foo'], relation.references_values
end

# File activerecord/test/cases/relation_test.rb, line 229
def test_relation_merging_with_joins_as_join_dependency_pick_proper_parent
  post = Post.create!(title: "haha", body: "huhu")
  comment = post.comments.create!(body: "hu")
  3.times { comment.ratings.create! }

  relation = Post.joins(:comments).merge Comment.joins(:ratings)

  assert_equal 3, relation.where(id: post.id).pluck(:id).size
end

# File activerecord/test/cases/relation_test.rb, line 272
def test_relation_merging_with_merged_joins_as_strings
  join_string = "LEFT OUTER JOIN #{Rating.quoted_table_name} ON #{SpecialComment.quoted_table_name}.id = #{Rating.quoted_table_name}.comment_id"
  special_comments_with_ratings = SpecialComment.joins join_string
  posts_with_special_comments_with_ratings = Post.group("posts.id").joins(:special_comments).merge(special_comments_with_ratings)
  assert_equal 3, authors(:david).posts.merge(posts_with_special_comments_with_ratings).count.length
end

# File activerecord/test/cases/relation_test.rb, line 223
def test_relation_merging_with_merged_joins_as_symbols
  special_comments_with_ratings = SpecialComment.joins(:ratings)
  posts_with_special_comments_with_ratings = Post.group("posts.id").joins(:special_comments).merge(special_comments_with_ratings)
  assert_equal 3, authors(:david).posts.merge(posts_with_special_comments_with_ratings).count.length
end

# File activerecord/test/cases/relation_test.rb, line 246
def test_respond_to_for_non_selected_element
  post = Post.select(:title).first
  assert_equal false, post.respond_to?(:body), "post should not respond_to?(:body) since invoking it raises exception"

  silence_warnings { post = Post.select("'title' as post_title").first }
  assert_equal false, post.respond_to?(:title), "post should not respond_to?(:body) since invoking it raises exception"
end

# File activerecord/test/cases/relation_test.rb, line 36
def test_responds_to_model_and_returns_klass
  relation = Relation.new(FakeKlass, :b, nil)
  assert_equal FakeKlass, relation.model
end

# File activerecord/test/cases/relation_test.rb, line 96
def test_scope_for_create
  relation = Relation.new(FakeKlass, :b, nil)
  assert_equal({}, relation.scope_for_create)
end

# File activerecord/test/cases/relation_test.rb, line 116
def test_scope_for_create_is_cached
  relation = Relation.new(Post, Post.arel_table, Post.predicate_builder)
  assert_equal({}, relation.scope_for_create)

  relation.where! relation.table[:id].eq(10)
  assert_equal({}, relation.scope_for_create)

  relation.create_with_value = {:hello => 'world'}
  assert_equal({}, relation.scope_for_create)
end

# File activerecord/test/cases/relation_test.rb, line 254
def test_select_quotes_when_using_from_clause
  skip_if_sqlite3_version_includes_quoting_bug
  quoted_join = ActiveRecord::Base.connection.quote_table_name("join")
  selected = Post.select(:join).from(Post.select("id as #{quoted_join}")).map(&:join)
  assert_equal Post.pluck(:id), selected
end

# File activerecord/test/cases/relation_test.rb, line 261
def test_selecting_aliased_attribute_quotes_column_name_when_from_is_used
  skip_if_sqlite3_version_includes_quoting_bug
  klass = Class.new(ActiveRecord::Base) do
    self.table_name = :test_with_keyword_column_name
    alias_attribute :description, :desc
  end
  klass.create!(description: "foo")

  assert_equal ["foo"], klass.select(:description).from(klass.all).map(&:desc)
end

# File activerecord/test/cases/relation_test.rb, line 91
def test_table_name_delegates_to_klass
  relation = Relation.new(FakeKlass.new('posts'), :b, Post.predicate_builder)
  assert_equal 'posts', relation.table_name
end

# File activerecord/test/cases/relation_test.rb, line 82
def test_tree_is_not_traversed
  relation = Relation.new(Post, Post.arel_table, Post.predicate_builder)
  left     = relation.table[:id].eq(10)
  right    = relation.table[:id].eq(10)
  combine  = left.and right
  relation.where! combine
  assert_equal({}, relation.where_values_hash)
end

# File activerecord/test/cases/relation_test.rb, line 301
def test_update_all_goes_through_normal_type_casting
  UpdateAllTestModel.update_all(body: "value from user", type: nil) # No STI

  assert_equal "type cast from database", UpdateAllTestModel.first.body
end

# File activerecord/test/cases/relation_test.rb, line 76
def test_values_wrong_table
  relation = Relation.new(Post, Post.arel_table, Post.predicate_builder)
  relation.where! Comment.arel_table[:id].eq(10)
  assert_equal({}, relation.where_values_hash)
end