pezkuwichain
abc4c3989b
- Remove nightly-only features from .rustfmt.toml and vendor/ss58-registry/rustfmt.toml - Removed features: imports_granularity, wrap_comments, comment_width, reorder_impl_items, spaces_around_ranges, binop_separator, match_arm_blocks, trailing_semicolon, trailing_comma - Format all 898 affected files with stable rustfmt - Ensures long-term reliability without nightly toolchain dependency
XCM Simulator Fuzzer
This project will fuzz-test the XCM simulator. It can catch reachable panics, timeouts as well as integer overflows and underflows.
Install dependencies
cargo install honggfuzz --locked
Run the fuzzer
In this directory, run this command:
HFUZZ_BUILD_ARGS="--features=try-runtime" cargo hfuzz run xcm-fuzzer
Run a single input
In this directory, run this command:
cargo run --features=try-runtime -- hfuzz_workspace/xcm-fuzzer/fuzzer_input_file
Generate coverage
In this directory, run these four commands:
RUSTFLAGS="-Zprofile -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort" \
CARGO_INCREMENTAL=0 SKIP_WASM_BUILD=1 CARGO_HOME=./cargo cargo build --features=try-runtime
../../../target/debug/xcm-fuzzer hfuzz_workspace/xcm-fuzzer/input/
zip -0 ccov.zip `find ../../../target/ \( -name "*.gc*" -o -name "test-*.gc*" \) -print`
grcov ccov.zip -s ../../../ -t html --llvm --branch --ignore-not-existing -o ./coverage
The code coverage will be in ./coverage/index.html.