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Assert that at least one row matching a WHERE condition exists in a table
Queries the specified table with the given WHERE clause. If no matching row is found, throws an exception with the error message. In the error message, use $filter and $table as substitution tokens for the actual filter and table name.
| Parameter | Description |
|---|---|
| cmd | table name to query |
| Argument 0 | WHERE clause (without the WHERE keyword) that must match at least one row |
| Argument 1 | error message to raise if no match is found (supports $filter and $table tokens) |
Test.Exists "table name to query", "WHERE clause (without the WHERE keyword) that must match at least one row", "error message to raise if no match is found (supports $filter and $table tokens)"