2310e423e9
The integration tests that were supposed to prevent this regression did not work as intended. They verified the contents of a table in the (supposedly) restored tablespace, deleted the table, and then deleted the tablespace. All of this was deemed sufficient to prove that the tablespace had been restored correctly and was valid. However, PostgreSQL will happily recreate a tablespace on the basis of a single full-page write, at least in the affected versions. Since writes to the test table were replayed from WAL with each recovery, all the tests passed even though the tablespace was missing after the restore. The tests have been updated to include direct comparisons against the file system and a new table that is not replayed after a restore because it is created before the backup and never modified again. Versions ≥ 9.0 were not affected due to numerous synthetic integration tests that verify backups and restores file by file.
pgBackRest
Regression, Unit, & Integration Testing
Introduction
pgBackRest uses Docker to run tests and generate documentation. Docker's light-weight virualization provides the a good balance between proper OS emulation and performance (especially startup)
A Vagrantfile is provided that contains the complete configuration required to run pgBackRest tests and build documentation. If Vagrant is not suitable then the Vagrantfile still contains the configuration steps required to build a test system.
Note that this is not required for normal operation of pgBackRest.
Testing
The easiest way to start testing pgBackRest is with the included Vagrantfile.
Build Vagrant and Logon:
cd test
vagrant up
vagrant ssh
The vagrant up command may take some time as a number of Docker containers must also be built. The vagrant ssh command automatically logs onto the VM.
Run All Tests:
/backrest/test/test.pl
Run Tests for a Specific OS:
/backrest/test/test.pl --vm=co6
Run Tests for a Specific OS and Module:
/backrest/test/test.pl --vm=co6 --module=backup
Run Tests for a Specific OS, Module, and Test:
/backrest/test/test.pl --vm=co6 --module=backup --test=full
Run Tests for a Specific OS, Module, Test, and Run:
/backrest/test/test.pl --vm=co6 --module=backup --test=full --run=1
Run Tests for a Specific OS, Module, Test, and Process Max:
/backrest/test/test.pl --vm=co6 --module=backup --test=full --process-max=4
Note that process-max is only applicable to the synthetic and full tests in the backup module.
Run Tests for a Specific OS, Module, Test, Process Max, and Database Version:
/backrest/test/test.pl --vm=co6 --module=backup --test=full --process-max=4 --db-version=9.4
Note that db-version is only applicable to the full test in the backup module.
Iterate All Possible Test Combinations:
/backrest/test/test.pl --dry-run