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I've finished migrating KtMongo from Kotest to TestBalloon. Some numbers that may be of interest;

Protocol: `./gradlew clean; ./gradlew check; ./gradlew check --no-configuration-cache --rerun-tasks`
• `clean` to ensure there aren't files left over
• `check` to ensure everything needed is available locally (all dependencies are downloaded, etc)
• `--no-configuration-cache` to ensure a fair execution order and disable intra-project parallelism
• `--rerun-tasks` to disable incremental compilation, the build cache, up-to-date checks, etc
• Only the last invokation is timed, using Gradle's build timer
So: the test measures how long tests execute, but also how long it takes to compile, etc. The repository compiles to nearly all Kotlin targets using cross-compilation, so compilation time is quite a lot.

Kotest: 2c899266a67a1c605e97d615afa353246859e261
• 2min 2s
TestBalloon: 3dc162f411167345de9f38bd3c4cbb46569afa54
• 1min 2s
That's a pretty big difference if you ask me!

That's cool! Which TestBalloon release was in use? The latest release 0.4.0, besides supporting incremental compilation, also dropped the last remnants of classpath scanning.

0.3.3-K2.2.0. I since updated to 0.4.0, but I changed a lot in the meantime (Gradle 8.14.3…) so it wouldn't be a fair comparison