database-cluster

The test case YamlProxyConfigurationSwapperTest use lots of mock to build test data, it is too difficult to understand.

It is better to use yaml file to provide test data, just load yaml file in test case and assert swap.

Scenario:

• Single vttablet, connecting to external MySQL (happens to be RDS Aurora, but I doubt it matters).
• Single unsharded keyspace (keyspace3), no vschema, with a single table, containing a single row
• Test program using the Python pymysql driver, using the CLIENT.FOUND_ROWS flag, and updating a single row to it's current key value (i.e. no rows are updated, but a single row