testgres-pg_probackup2
Control and testing utility for pg_probackup2. Python 3.7+ is supported.
Installation
To install testgres-pg_probackup, run:
pip install testgres-pg_probackup
We encourage you to use virtualenv for your testing environment.
The package requires testgres.
Usage
Environment variables
| Variable | Required | Default value | Description |
|---|---|---|---|
| PGPROBACKUP_TMP_DIR | No | tests/tmp_dirs | The root of the temporary directory hierarchy where tests store data and logs. Relative paths start from the current working directory. |
| PG_PROBACKUP_TEST_BACKUP_DIR_PREFIX | No | Temporary test hierarchy | Prefix of the test backup directories. Must be an absolute path. Use this variable to store test backups in a location other than the temporary test hierarchy. |
| PG_PROBACKUP_VALGRIND | No | Not set | Run pg_probackup through valgrind if the variable is set to 'y'. Setting PG_PROBACKUP_VALGRIND_SUP (see below) to any value enables valgrind just like setting PG_PROBACKUP_VALGRIND=y would do. |
| PG_PROBACKUP_VALGRIND_SUP | No | Not set | Specify the path to a valgrind suppression file. If the variable is not set then a file named "valgrind.supp" is searched for in the current working directory (normally the root of pg_probackup repository). Setting PG_PROBACKUP_VALGRIND_SUP to any value enables valgrind just like setting PG_PROBACKUP_VALGRIND=y (see above) would do. |
See Testgres on how to configure a custom Postgres installation using PG_CONFIG and PG_BIN environment variables.
Examples
Here is an example of what you can do with testgres-pg_probackup2:
# You can see full script here plugins/pg_probackup2/pg_probackup2/tests/basic_test.py
def test_full_backup(self):
# Setting up a simple test node
node = self.pg_node.make_simple('node', pg_options={"fsync": "off", "synchronous_commit": "off"})
# Initialize and configure Probackup
self.pb.init()
self.pb.add_instance('node', node)
self.pb.set_archiving('node', node)
# Start the node and initialize pgbench
node.slow_start()
node.pgbench_init(scale=100, no_vacuum=True)
# Perform backup and validation
backup_id = self.pb.backup_node('node', node)
out = self.pb.validate('node', backup_id)
# Check if the backup is valid
self.assertIn(f"INFO: Backup {backup_id} is valid", out)
Authors
4 maintainers
Metadata
4 maintainers
Release files for testgres-pg-probackup2 0.10.0
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