feat: fuzz test

#6

afl/.gitignore

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+
+target
+out

afl/Cargo.toml

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+[package]
+name = "afl"
+version = "0.1.0"
+authors = ["zhangsoledad <787953403@qq.com>"]
+edition = "2018"
+
+[dependencies]
+afl = "0.4"
+faster-hex = "0.3"

afl/in/case1

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+\u{0} 𐀀G\u{0}𐀀 GG\u{0}𐀀G\u{0}Gࠀ\u{0} 𐀀   \u{0}:\u{0}\u{0}gࠀG  G::GG::g𐀀G𐀀\u{0}\u{0}¡𐀀ࠀ\u{0}:GGG Gg𐀀 :\u{0}:gG ¡

afl/in/case2

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+ed136fFDdCcC1DbaFE8CB6Df1AdDBAea44aCcC17b0DbC2741F9CeEeaFbE7A51D

afl/in/case3

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+Bf9E2d38aceDeeCbbAfccc4B4B7AE

afl/in/case4

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+Day before yesterday I saw a rabbit, and yesterday a deer, and today, you.

afl/src/main.rs

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+use afl::fuzz;
+use faster_hex::{hex_decode, hex_encode, hex_string};
+
+fn main() {
+    fuzz!(|data: &[u8]| {
+        let mut buffer = vec![0; data.len() * 2];
+        let _ = hex_encode(data, &mut buffer);
+        let _ = hex_string(data);
+        let mut dst = Vec::with_capacity(data.len());
+        dst.resize(data.len(), 0);
+        let _ = hex_decode(&buffer, &mut dst);
+    });
+}

fuzz/.gitignore

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+
+target
+corpus
+artifacts

fuzz/Cargo.toml

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+
+[package]
+name = "faster-hex-fuzz"
+version = "0.0.1"
+authors = ["Automatically generated"]
+publish = false
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies.faster-hex]
+path = ".."
+[dependencies.libfuzzer-sys]
+git = "https://github.com/rust-fuzz/libfuzzer-sys.git"
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "faster-hex"
+path = "fuzz_targets/faster-hex.rs"

fuzz/fuzz_targets/faster-hex.rs

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+#![no_main]
+#[macro_use] extern crate libfuzzer_sys;
+extern crate faster_hex;
+
+use faster_hex::{hex_decode, hex_encode, hex_string};
+
+fuzz_target!(|data: &[u8]| {
+    let mut buffer = vec![0; data.len() * 2];
+    let _ = hex_encode(data, &mut buffer);
+    let _ = hex_string(data);
+    let mut dst = Vec::with_capacity(data.len());
+    dst.resize(data.len(), 0);
+    let _ = hex_decode(&buffer, &mut dst);
+});