Date: Thu, 04 Jan 2024 15:21:33 -0800
From: Sehrope Sarkuni <noreply@github.com>
To: pgsql-jdbc-commits@lists.postgresql.org
Message-ID: <pgjdbc/pgjdbc/push/refs/heads/master/2b8724-aa235e@github.com>
Subject: [pgjdbc/pgjdbc] aa235e: test: Use deterministic RNG for randomized
 test ma...
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  Branch: refs/heads/master
  Home:   https://github.com/pgjdbc/pgjdbc
  Commit: aa235e14c2213d1386100e62206006d83082d914
      https://github.com/pgjdbc/pgjdbc/commit/aa235e14c2213d1386100e62206006d83082d914
  Author: Sehrope Sarkuni <sehrope@jackdb.com>
  Date:   2024-01-04 (Thu, 04 Jan 2024)

  Changed paths:
    M .github/workflows/main.yml
    M .github/workflows/matrix.js
    M .github/workflows/matrix_builder.js
    A .github/workflows/rng.js
    A .github/workflows/seedrandom.js

  Log Message:
  -----------
  test: Use deterministic RNG for randomized test matrix

Change randomized test matrix to use a deterministic RNG. If the RNG_SEED environment
variable is defined, it will be used as the initial seed for the RNG. Alternatively,
if the GITHUB_PR_NUMBER environment variable is defined, it will be used to generate
a deterministic RNG seed to ensure that all test cycles for the same PR generate the
same test matrix of random environments.

If neither environment variable is defined then a random seed will be generated and
logged to the console. Re-running the action using that seed with the same matrix
generation codebase will generate the same matrix.

The actual RNG code is copied from seedrandom:
https://github.com/davidbau/seedrandom/commit/4460ad325a0a15273a211e509f03ae0beb99511a