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Diffstat (limited to 'spec/active_relation/unit/relations/selection_spec.rb')
| -rw-r--r-- | spec/active_relation/unit/relations/selection_spec.rb | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/spec/active_relation/unit/relations/selection_spec.rb b/spec/active_relation/unit/relations/selection_spec.rb new file mode 100644 index 0000000000..afe002186e --- /dev/null +++ b/spec/active_relation/unit/relations/selection_spec.rb @@ -0,0 +1,50 @@ +require File.join(File.dirname(__FILE__), '..', '..', '..', 'spec_helper') + +module ActiveRelation + describe Selection do + before do + @relation = Table.new(:users) + @predicate = Equality.new(@relation[:id], 1) + end + + describe '#initialize' do + it "manufactures nested selection relations if multiple predicates are provided" do + @predicate2 = LessThan.new(@relation[:age], 2) + Selection.new(@relation, @predicate, @predicate2). \ + should == Selection.new(Selection.new(@relation, @predicate2), @predicate) + end + end + + describe '#qualify' do + it "descends" do + Selection.new(@relation, @predicate).qualify. \ + should == Selection.new(@relation, @predicate).descend(&:qualify) + end + end + + describe '#descend' do + it "distributes over the relation and predicates" do + Selection.new(@relation, @predicate).descend(&:qualify). \ + should == Selection.new(@relation.descend(&:qualify), @predicate.descend(&:qualify)) + end + end + + describe '#to_sql' do + it "manufactures sql with where clause conditions" do + Selection.new(@relation, @predicate).to_sql.should be_like(""" + SELECT `users`.`id`, `users`.`name` + FROM `users` + WHERE `users`.`id` = 1 + """) + end + + it "allows arbitrary sql" do + Selection.new(@relation, "asdf").to_sql.should be_like(""" + SELECT `users`.`id`, `users`.`name` + FROM `users` + WHERE asdf + """) + end + end + end +end
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