diff options
Diffstat (limited to 'spec/engines/sql/unit/relations/lock_spec.rb')
-rw-r--r-- | spec/engines/sql/unit/relations/lock_spec.rb | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/spec/engines/sql/unit/relations/lock_spec.rb b/spec/engines/sql/unit/relations/lock_spec.rb new file mode 100644 index 0000000000..72a8a2e457 --- /dev/null +++ b/spec/engines/sql/unit/relations/lock_spec.rb @@ -0,0 +1,86 @@ +require 'spec_helper' + +module Arel + describe Lock do + before do + @relation = Table.new(:users) + end + + describe '#to_sql' do + it "manufactures a simple select query lock" do + sql = @relation.lock.to_sql + + adapter_is :mysql do + sql.should be_like(%Q{ + SELECT `users`.`id`, `users`.`name` + FROM `users` FOR UPDATE + }) + end + + adapter_is :postgresql do + sql.should be_like(%Q{ + SELECT "users"."id", "users"."name" + FROM "users" FOR UPDATE + }) + end + + adapter_is :sqlite3 do + sql.should be_like(%Q{ + SELECT "users"."id", "users"."name" + FROM "users" + }) + end + + adapter_is :oracle do + sql.should be_like(%Q{ + SELECT "USERS"."ID", "USERS"."NAME" + FROM "USERS" FOR UPDATE + }) + + sql_with_order_by = @relation.order(@relation[:id]).take(1).lock.to_sql + sql_with_order_by.should be_like(%Q{ + SELECT "USERS"."ID", "USERS"."NAME" + FROM "USERS" + WHERE "ID" IN (select * from + (SELECT "ID" FROM "USERS" ORDER BY "USERS"."ID" ASC) + where rownum <= 1) + FOR UPDATE + }) + + end + end + + it "manufactures a select query locking with a given lock" do + sql = @relation.lock("LOCK IN SHARE MODE").to_sql + + adapter_is :mysql do + sql.should be_like(%Q{ + SELECT `users`.`id`, `users`.`name` + FROM `users` LOCK IN SHARE MODE + }) + end + + adapter_is :postgresql do + sql.should be_like(%Q{ + SELECT "users"."id", "users"."name" + FROM "users" LOCK IN SHARE MODE + }) + end + + adapter_is :sqlite3 do + sql.should be_like(%Q{ + SELECT "users"."id", "users"."name" + FROM "users" + }) + end + + adapter_is :oracle do + sql.should be_like(%Q{ + SELECT "USERS"."ID", "USERS"."NAME" + FROM "USERS" LOCK IN SHARE MODE + }) + end + end + end + end +end |