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perf: replace DELETE loop with TRUNCATE CASCADE in test cleanup #3421

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perf: replace DELETE loop with TRUNCATE CASCADE in test cleanup #3421

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22 changes: 9 additions & 13 deletions __tests__/setup.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -61,20 +61,16 @@ const cleanDatabase = async (): Promise<void> => {
await remoteConfig.init();

const con = await createOrGetConnection();
for (const entity of con.entityMetadatas) {
const repository = con.getRepository(entity.name);
if (repository.metadata.tableType === 'view') continue;
await repository.query(`DELETE
FROM "${entity.tableName}";`);

for (const column of entity.primaryColumns) {
if (column.generationStrategy === 'increment') {
await repository.query(
`ALTER SEQUENCE ${entity.tableName}_${column.databaseName}_seq RESTART WITH 1`,
);
}
}
}
// Get all table names, excluding views
const tableNames = con.entityMetadatas
.filter((entity) => entity.tableType !== 'view')
.map((entity) => `"${entity.tableName}"`)
.join(', ');

// Single TRUNCATE with CASCADE and RESTART IDENTITY
// Much faster than individual DELETE statements per table
await con.query(`TRUNCATE TABLE ${tableNames} RESTART IDENTITY CASCADE`);
};

export const fileTypeFromBuffer = jest.fn();
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