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-rw-r--r--spec/relations/relation_spec.rb51
1 files changed, 31 insertions, 20 deletions
diff --git a/spec/relations/relation_spec.rb b/spec/relations/relation_spec.rb
index 7434bd563b..6c2c2b8611 100644
--- a/spec/relations/relation_spec.rb
+++ b/spec/relations/relation_spec.rb
@@ -4,40 +4,45 @@ describe Relation do
before do
@relation1 = TableRelation.new(:foo)
@relation2 = TableRelation.new(:bar)
+ @attribute1 = Attribute.new(@relation1, :id)
+ @attribute2 = Attribute.new(@relation1, :name)
end
- describe Relation, '*' do
- it "manufactures a JoinOperation between those two relations" do
- (@relation1 * @relation2).should == JoinOperation.new(@relation1, @relation2)
+ describe Relation, 'joins' do
+ describe Relation, '<=>' do
+ it "manufactures an inner join operation between those two relations" do
+ (@relation1 <=> @relation2).should == InnerJoinOperation.new(@relation1, @relation2)
+ end
+ end
+
+ describe Relation, '<<' do
+ it "manufactures a left outer join operation between those two relations" do
+ (@relation1 << @relation2).should == LeftOuterJoinOperation.new(@relation1, @relation2)
+ end
end
end
describe Relation, '[]' do
- it "manufactures a attribute" do
+ it "manufactures an attribute when given a symbol" do
@relation1[:id].should be_eql(Attribute.new(@relation1, :id))
end
+ it "manufactures a range relation when given a range" do
+ @relation1[1..2].should == RangeRelation.new(@relation1, 1..2)
+ end
+
it "raises an error if the named attribute is not part of the relation" do
pending
end
end
describe Relation, '#include?' do
- before do
- @attribute = Attribute.new(@relation1, :id)
- end
-
it "manufactures an inclusion predicate" do
- @relation1.include?(@attribute).should == RelationInclusionPredicate.new(@attribute, @relation1)
+ @relation1.include?(@attribute1).should == RelationInclusionPredicate.new(@attribute1, @relation1)
end
end
describe Relation, '#project' do
- before do
- @attribute1 = Attribute.new(@relation1, :id)
- @attribute2 = Attribute.new(@relation1, :name)
- end
-
it "only allows projecting attributes in the relation" do
pending
end
@@ -46,18 +51,24 @@ describe Relation do
pending
end
- it "manufactures a projected relation" do
- @relation1.project(@attribute1, @attribute2).should == ProjectedRelation(@relation1, @attribute1, @attribute2)
+ it "manufactures a projection relation" do
+ @relation1.project(@attribute1, @attribute2).should == ProjectionRelation.new(@relation1, @attribute1, @attribute2)
end
end
describe Relation, '#select' do
before do
- @predicate = EqualityPredicate.new()
+ @predicate = EqualityPredicate.new(@attribute1, @attribute2)
end
- it "manufactures a selected relation" do
- @relation1.select(@attribute1, @attribute2).should == SelectedRelation(@relation1, @attribute1, @attribute2)
+ it "manufactures a selection relation" do
+ @relation1.select(@attribute1, @attribute2).should == SelectionRelation.new(@relation1, @attribute1, @attribute2)
end
- end
+ end
+
+ describe Relation, 'order' do
+ it "manufactures an order relation" do
+ @relation1.order(@attribute1, @attribute2).should == OrderRelation.new(@relation1, @attribute1, @attribute2)
+ end
+ end
end \ No newline at end of file