External Dependency, call to
Call to an external dependency is, as it's name explains, an interaction in which a unit of code sends information to an external dependency such as:
- Database
- HTTP API
- RPC
function additionWithLogging(
summand: number,
otherSummand: number,
logger: ILogger
): number {
/** Exit point => external dependency call */
logger.log(`Will add: ${currentValue} + ${summand}`);
return otherSummand + summand;
}
To verify it a test double is used, in this case a mock.
