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require File.join(File.dirname(__FILE__), '..', 'spec_helper')
describe Attribute do
before do
@relation1 = TableRelation.new(:foo)
@relation2 = TableRelation.new(:bar)
end
describe '#eql?' do
it "obtains if the relation and attribute name are identical" do
Attribute.new(@relation1, :attribute_name).should be_eql(Attribute.new(@relation1, :attribute_name))
Attribute.new(@relation1, :attribute_name).should_not be_eql(Attribute.new(@relation1, :another_attribute_name))
Attribute.new(@relation1, :attribute_name).should_not be_eql(Attribute.new(@relation2, :attribute_name))
end
end
describe 'predications' do
before do
@attribute1 = Attribute.new(@relation1, :attribute_name)
@attribute2 = Attribute.new(@relation2, :attribute_name)
end
describe '==' do
it "manufactures an equality predicate" do
(@attribute1 == @attribute2).should == EqualityPredicate.new(@attribute1, @attribute2)
end
end
describe '<' do
it "manufactures a less-than predicate" do
(@attribute1 < @attribute2).should == LessThanPredicate.new(@attribute1, @attribute2)
end
end
describe '<=' do
it "manufactures a less-than or equal-to predicate" do
(@attribute1 <= @attribute2).should == LessThanOrEqualToPredicate.new(@attribute1, @attribute2)
end
end
describe '>' do
it "manufactures a greater-than predicate" do
(@attribute1 > @attribute2).should == GreaterThanPredicate.new(@attribute1, @attribute2)
end
end
describe '>=' do
it "manufactures a greater-than or equal to predicate" do
(@attribute1 >= @attribute2).should == GreaterThanOrEqualToPredicate.new(@attribute1, @attribute2)
end
end
describe '=~' do
it "manufactures a match predicate" do
(@attribute1 =~ /.*/).should == MatchPredicate.new(@attribute1, @attribute2)
end
end
end
describe '#to_sql' do
it "manufactures a column" do
Attribute.new(@relation1, :attribute_name).to_sql.should == ColumnBuilder.new(@relation1.table, :attribute_name)
end
end
end
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