tree a7119d9a9f566d55b067eb21579e804b1e167087
parent f102d2fc0f42f4673ccb05d2057e0a52a40c1219
author Matthias Sohn <matthias.sohn@sap.com> 1690572852 +0200
committer Matthias Sohn <matthias.sohn@sap.com> 1690924269 +0200

Test spanner-refdb using spanner emulator testcontainer

Implement a SpannerEmulatorContainer for running the upstream Spanner
emulator container for tests:
- start the emulator container
- create a Spanner instance
- create a Spanner database
- use a separate plugin config file spanner-refdb.config to configure
  the plugin
- mock the PluginConfigFactory so that we can start the plugin from test
  code without loading the plugin in a running Gerrit server
- create the SpannerRefDatabase schema
- implement first tests

Change-Id: I9290c4458299aa27bcf6e1d036b2c2245d948ba3