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require File.join(File.dirname(__FILE__), '..', '..', '..', 'spec_helper')
module Arel
describe Binary do
before do
@relation = Table.new(:users)
@attribute1 = @relation[:id]
@attribute2 = @relation[:name]
class ConcreteBinary < Binary
def predicate_sql
"<=>"
end
end
end
describe "with compound predicates" do
before do
@operand1 = ConcreteBinary.new(@attribute1, 1)
@operand2 = ConcreteBinary.new(@attribute2, "name")
end
describe Or do
describe "#to_sql" do
it "manufactures sql with an OR operation" do
Or.new(@operand1, @operand2).to_sql.should be_like("
(`users`.`id` <=> 1 OR `users`.`name` <=> 'name')
")
end
end
end
describe And do
describe "#to_sql" do
it "manufactures sql with an AND operation" do
And.new(@operand1, @operand2).to_sql.should be_like("
(`users`.`id` <=> 1 AND `users`.`name` <=> 'name')
")
end
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
before do
@value = "1-asdf"
end
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
end
describe '#bind' do
before do
@another_relation = @relation.alias
end
describe 'when both operands are attributes' do
it "manufactures an expression with the attributes bound to the relation" do
ConcreteBinary.new(@attribute1, @attribute2).bind(@another_relation). \
should == ConcreteBinary.new(@another_relation[@attribute1], @another_relation[@attribute2])
end
end
describe 'when an operand is a value' do
it "manufactures an expression with unmodified values" do
ConcreteBinary.new(@attribute1, "asdf").bind(@another_relation). \
should == ConcreteBinary.new(@attribute1.find_correlate_in(@another_relation), "asdf".find_correlate_in(@another_relation))
end
end
end
end
end
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