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require 'cases/helper'
require 'models/post'
require 'models/comment'
module ActiveRecord
class WhereChainTest < ActiveRecord::TestCase
fixtures :posts
def setup
super
@name = 'title'
end
def test_not_inverts_where_clause
relation = Post.where.not(title: 'hello')
expected_where_clause = Post.where(title: 'hello').where_clause.invert
assert_equal expected_where_clause, relation.where_clause
end
def test_not_with_nil
assert_raise ArgumentError do
Post.where.not(nil)
end
end
def test_association_not_eq
expected = Arel::Nodes::Grouping.new(Comment.arel_table[@name].not_eq(Arel::Nodes::BindParam.new))
relation = Post.joins(:comments).where.not(comments: {title: 'hello'})
assert_equal(expected.to_sql, relation.where_clause.ast.to_sql)
end
def test_not_eq_with_preceding_where
relation = Post.where(title: 'hello').where.not(title: 'world')
expected_where_clause =
Post.where(title: 'hello').where_clause +
Post.where(title: 'world').where_clause.invert
assert_equal expected_where_clause, relation.where_clause
end
def test_not_eq_with_succeeding_where
relation = Post.where.not(title: 'hello').where(title: 'world')
expected_where_clause =
Post.where(title: 'hello').where_clause.invert +
Post.where(title: 'world').where_clause
assert_equal expected_where_clause, relation.where_clause
end
def test_chaining_multiple
relation = Post.where.not(author_id: [1, 2]).where.not(title: 'ruby on rails')
expected_where_clause =
Post.where(author_id: [1, 2]).where_clause.invert +
Post.where(title: 'ruby on rails').where_clause.invert
assert_equal expected_where_clause, relation.where_clause
end
def test_rewhere_with_one_condition
relation = Post.where(title: 'hello').where(title: 'world').rewhere(title: 'alone')
expected = Post.where(title: 'alone')
assert_equal expected.where_clause, relation.where_clause
end
def test_rewhere_with_multiple_overwriting_conditions
relation = Post.where(title: 'hello').where(body: 'world').rewhere(title: 'alone', body: 'again')
expected = Post.where(title: 'alone', body: 'again')
assert_equal expected.where_clause, relation.where_clause
end
def test_rewhere_with_one_overwriting_condition_and_one_unrelated
relation = Post.where(title: 'hello').where(body: 'world').rewhere(title: 'alone')
expected = Post.where(body: 'world', title: 'alone')
assert_equal expected.where_clause, relation.where_clause
end
def test_rewhere_with_range
relation = Post.where(comments_count: 1..3).rewhere(comments_count: 3..5)
assert_equal Post.where(comments_count: 3..5), relation
end
def test_rewhere_with_infinite_upper_bound_range
relation = Post.where(comments_count: 1..Float::INFINITY).rewhere(comments_count: 3..5)
assert_equal Post.where(comments_count: 3..5), relation
end
def test_rewhere_with_infinite_lower_bound_range
relation = Post.where(comments_count: -Float::INFINITY..1).rewhere(comments_count: 3..5)
assert_equal Post.where(comments_count: 3..5), relation
end
def test_rewhere_with_infinite_range
relation = Post.where(comments_count: -Float::INFINITY..Float::INFINITY).rewhere(comments_count: 3..5)
assert_equal Post.where(comments_count: 3..5), relation
end
end
end
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