Running tests

Configuring logging

Canister logs

Logs for canisters can be configured when running the PocketIC server using the showCanisterLogs option, for example:

const pic = await PocketIcServer.start({
  showCanisterLogs: true,
});

Server logs

Logs for the PocketIC server can be configured by setting the POCKET_IC_LOG_DIR and POCKET_IC_LOG_DIR_LEVELS environment variables.

The POCKET_IC_LOG_DIR variable specifies the directory where the logs will be stored. It accepts any valid relative, or absolute directory path.

The POCKET_IC_LOG_DIR_LEVELS variable specifies the log levels. It accepts any of the following string values: trace, debug, info, warn, or error.

For example:

POCKET_IC_LOG_DIR=./logs POCKET_IC_LOG_DIR_LEVELS=trace npm test

It’s also possible to set individual log levels for different modules, for examples:

POCKET_IC_LOG_DIR=./logs POCKET_IC_LOG_DIR_LEVELS=pocket_ic_server=trace,tower_http=info,axum::rejection=info npm test

Runtime logs

Logs for the IC runtime can be configured when running the PocketIC server using the showRuntimeLogs option, for example:

const pic = await PocketIcServer.start({
  showRuntimeLogs: true,
});