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require File.join(File.dirname(__FILE__), '..', '..', '..', 'spec_helper')
module ActiveRelation
describe Binary do
before do
@relation = Table.new(:users)
@attribute1 = @relation[:id]
@attribute2 = @relation[:name]
@value = "1-asdf".bind(@relation)
class ConcreteBinary < Binary
def predicate_sql
"<=>"
end
end
end
describe '#to_sql' do
describe 'when relating two attributes' do
it 'manufactures sql with a binary operation' do
ConcreteBinary.new(@attribute1, @attribute2).to_sql.should be_like("
`users`.`id` <=> `users`.`name`
")
end
end
describe 'when relating an attribute and a value' do
describe 'when relating to an integer attribute' do
it 'formats values as integers' do
ConcreteBinary.new(@attribute1, @value).to_sql.should be_like("
`users`.`id` <=> 1
")
end
end
describe 'when relating to a string attribute' do
it 'formats values as strings' do
ConcreteBinary.new(@attribute2, @value).to_sql.should be_like("
`users`.`name` <=> '1-asdf'
")
end
end
end
describe 'when relating two values' do
before do
@another_value = 2.bind(@relation)
end
it 'quotes values appropriate to their type' do
ConcreteBinary.new(string = @value, integer = @another_value).to_sql.should be_like("
'1-asdf' <=> 2
")
end
end
describe 'when relating to an array' do
describe 'when the array\'s elements are the same type as the attribute' do
before do
@array = [1, 2, 3]
end
it 'manufactures sql with a comma separated list' do
ConcreteBinary.new(@attribute1, @array.bind(@relation)).to_sql.should be_like("
`users`.`id` <=> (1, 2, 3)
")
end
end
describe 'when the array\'s elements are not same type as the attribute' do
before do
@array = ['1-asdf', 2, 3]
end
it 'formats values in the array as the type of the attribute' do
ConcreteBinary.new(@attribute1, @array.bind(@relation)).to_sql.should be_like("
`users`.`id` <=> (1, 2, 3)
")
end
end
end
describe 'when relating to a relation' do
it 'manufactures sql with a subselect' do
ConcreteBinary.new(@attribute1, @relation).to_sql.should be_like("
`users`.`id` <=> (SELECT `users`.`id`, `users`.`name` FROM `users`)
")
end
end
end
describe '==' do
it "obtains if attribute1 and attribute2 are identical" do
Binary.new(@attribute1, @attribute2).should == Binary.new(@attribute1, @attribute2)
Binary.new(@attribute1, @attribute2).should_not == Binary.new(@attribute1, @attribute1)
end
it "obtains if the concrete type of the Predicates::Binarys are identical" do
Binary.new(@attribute1, @attribute2).should == Binary.new(@attribute1, @attribute2)
Binary.new(@attribute1, @attribute2).should_not == ConcreteBinary.new(@attribute1, @attribute2)
end
end
describe '#qualify' do
it "descends" do
ConcreteBinary.new(@attribute1, @attribute2).qualify \
.should == ConcreteBinary.new(@attribute1, @attribute2).descend(&:qualify)
end
end
describe '#descend' do
it "distributes a block over the predicates and attributes" do
ConcreteBinary.new(@attribute1, @attribute2).descend(&:qualify). \
should == ConcreteBinary.new(@attribute1.qualify, @attribute2.qualify)
end
end
describe '#bind' do
before do
@another_relation = Table.new(:photos)
end
it "descends" do
ConcreteBinary.new(@attribute1, @attribute2).bind(@another_relation). \
should == ConcreteBinary.new(@attribute1.bind(@another_relation), @attribute2.bind(@another_relation))
end
end
end
end
|
