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Add fuzz test to ensure venial parses everything that syn does #4

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Add fuzz test to ensure venial parses everything that syn does #4

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3 changes: 3 additions & 0 deletions .gitignore
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Expand Up @@ -4,3 +4,6 @@

# These are backup files generated by rustfmt
**/*.rs.bk

# Folder generated by fuzzcheck
/fuzz
247 changes: 241 additions & 6 deletions Cargo.lock
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13 changes: 13 additions & 0 deletions Cargo.toml
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Expand Up @@ -17,3 +17,16 @@ quote = "1.0.15"
[dev-dependencies]
insta = "1.12.0"
similar-asserts = "1.2.0"

# fuzzcheck and syn are heavy, so only import them when `cfg(fuzzing)` is set
[target.'cfg(fuzzing)'.dev-dependencies]
fuzzcheck = { git = "https://github.com/loiclec/fuzzcheck-rs", default-features = false }
fuzzcheck_proc_macro2 = { git = "https://github.com/loiclec/fuzzcheck_proc_macro2" }
syn = { version = "1.0.89", features = ["full", "visit"] }

# not stricly necessary, but it is good for the fuzzer to run as fast as possible
[profile.fuzzing]
inherits = "release"
codegen-units = 1
lto = "thin"
debug = false
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Shouldn't the fuzzing profile have debug = true instead, to catch more potential panics?

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Yes, that's correct. Not sure why it's set to false, I must have been experimenting with different values and then forgot to turn it back to true.