How Contracts Are Collected

snforge supports two mechanisms for collecting contracts used in tests. The default one depends on Scarb version used and can be controlled with --no-optimization flag.

If using Scarb version >= 2.8.3, optimized collection mechanism is used by default.
If using Scarb version < 2.8.3 or running snforge test with --no-optimization flag, the old collection mechanism is used.

📝 Note

Enabling new mechanism requires Scarb version >= 2.8.3.

Differences Between Collection Mechanisms

Feature	Old Mechanism	Optimised Mechanism
Using contracts from `/src`	✅	✅
Using contracts from `/tests`	❌	✅
Using contracts from modules marked with `#[cfg(test)]`	❌	✅
Using contracts from dependencies	✅	✅
Contracts more closely resemble ones from real network	✅	❌
Less compilation steps required (faster compilation)	❌	✅
Additional compilation step required (`scarb build`)	✅	❌