From ab1dc7bfceceb45a8d272bdfdeab870531fce285 Mon Sep 17 00:00:00 2001
From: Kirk Baird <baird.k@outlook.com>
Date: Fri, 22 Feb 2019 16:50:14 +1100
Subject: [PATCH] Add simple fuzz tests for hashing and boolean-bitfield

---
 eth2/utils/boolean-bitfield/fuzz/.gitignore   |  4 +++
 eth2/utils/boolean-bitfield/fuzz/Cargo.toml   | 33 +++++++++++++++++++
 .../fuzz_targets/fuzz_target_from_bytes.rs    |  9 +++++
 .../fuzz_targets/fuzz_target_ssz_decode.rs    | 11 +++++++
 .../fuzz_targets/fuzz_target_ssz_encode.rs    | 13 ++++++++
 eth2/utils/hashing/fuzz/.gitignore            |  4 +++
 eth2/utils/hashing/fuzz/Cargo.toml            | 22 +++++++++++++
 .../fuzz/fuzz_targets/fuzz_target_hash.rs     |  9 +++++
 8 files changed, 105 insertions(+)
 create mode 100644 eth2/utils/boolean-bitfield/fuzz/.gitignore
 create mode 100644 eth2/utils/boolean-bitfield/fuzz/Cargo.toml
 create mode 100644 eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_from_bytes.rs
 create mode 100644 eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_ssz_decode.rs
 create mode 100644 eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_ssz_encode.rs
 create mode 100644 eth2/utils/hashing/fuzz/.gitignore
 create mode 100644 eth2/utils/hashing/fuzz/Cargo.toml
 create mode 100644 eth2/utils/hashing/fuzz/fuzz_targets/fuzz_target_hash.rs

diff --git a/eth2/utils/boolean-bitfield/fuzz/.gitignore b/eth2/utils/boolean-bitfield/fuzz/.gitignore
new file mode 100644
index 000000000..572e03bdf
--- /dev/null
+++ b/eth2/utils/boolean-bitfield/fuzz/.gitignore
@@ -0,0 +1,4 @@
+
+target
+corpus
+artifacts
diff --git a/eth2/utils/boolean-bitfield/fuzz/Cargo.toml b/eth2/utils/boolean-bitfield/fuzz/Cargo.toml
new file mode 100644
index 000000000..9769fc50e
--- /dev/null
+++ b/eth2/utils/boolean-bitfield/fuzz/Cargo.toml
@@ -0,0 +1,33 @@
+
+[package]
+name = "boolean-bitfield-fuzz"
+version = "0.0.1"
+authors = ["Automatically generated"]
+publish = false
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+ssz = { path = "../../ssz" }
+
+[dependencies.boolean-bitfield]
+path = ".."
+[dependencies.libfuzzer-sys]
+git = "https://github.com/rust-fuzz/libfuzzer-sys.git"
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "fuzz_target_from_bytes"
+path = "fuzz_targets/fuzz_target_from_bytes.rs"
+
+[[bin]]
+name = "fuzz_target_ssz_decode"
+path = "fuzz_targets/fuzz_target_ssz_decode.rs"
+
+[[bin]]
+name = "fuzz_target_ssz_encode"
+path = "fuzz_targets/fuzz_target_ssz_encode.rs"
diff --git a/eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_from_bytes.rs b/eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_from_bytes.rs
new file mode 100644
index 000000000..0c71c6d68
--- /dev/null
+++ b/eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_from_bytes.rs
@@ -0,0 +1,9 @@
+#![no_main]
+#[macro_use] extern crate libfuzzer_sys;
+extern crate boolean_bitfield;
+
+use boolean_bitfield::BooleanBitfield;
+
+fuzz_target!(|data: &[u8]| {
+    let _result = BooleanBitfield::from_bytes(data);
+});
diff --git a/eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_ssz_decode.rs b/eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_ssz_decode.rs
new file mode 100644
index 000000000..14ddbb0a9
--- /dev/null
+++ b/eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_ssz_decode.rs
@@ -0,0 +1,11 @@
+#![no_main]
+#[macro_use] extern crate libfuzzer_sys;
+extern crate boolean_bitfield;
+extern crate ssz;
+
+use boolean_bitfield::BooleanBitfield;
+use ssz::{Decodable, DecodeError};
+
+fuzz_target!(|data: &[u8]| {
+    let result: Result<(BooleanBitfield, usize), DecodeError> = <_>::ssz_decode(data, 0);
+});
diff --git a/eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_ssz_encode.rs b/eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_ssz_encode.rs
new file mode 100644
index 000000000..0626e5db7
--- /dev/null
+++ b/eth2/utils/boolean-bitfield/fuzz/fuzz_targets/fuzz_target_ssz_encode.rs
@@ -0,0 +1,13 @@
+#![no_main]
+#[macro_use] extern crate libfuzzer_sys;
+extern crate boolean_bitfield;
+extern crate ssz;
+
+use boolean_bitfield::BooleanBitfield;
+use ssz::SszStream;
+
+fuzz_target!(|data: &[u8]| {
+    let bitfield = BooleanBitfield::from_bytes(data);
+    let mut ssz = SszStream::new();
+    ssz.append(&bitfield);
+});
diff --git a/eth2/utils/hashing/fuzz/.gitignore b/eth2/utils/hashing/fuzz/.gitignore
new file mode 100644
index 000000000..572e03bdf
--- /dev/null
+++ b/eth2/utils/hashing/fuzz/.gitignore
@@ -0,0 +1,4 @@
+
+target
+corpus
+artifacts
diff --git a/eth2/utils/hashing/fuzz/Cargo.toml b/eth2/utils/hashing/fuzz/Cargo.toml
new file mode 100644
index 000000000..57e0172eb
--- /dev/null
+++ b/eth2/utils/hashing/fuzz/Cargo.toml
@@ -0,0 +1,22 @@
+
+[package]
+name = "hashing-fuzz"
+version = "0.0.1"
+authors = ["Automatically generated"]
+publish = false
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies.hashing]
+path = ".."
+[dependencies.libfuzzer-sys]
+git = "https://github.com/rust-fuzz/libfuzzer-sys.git"
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "fuzz_target_hash"
+path = "fuzz_targets/fuzz_target_hash.rs"
diff --git a/eth2/utils/hashing/fuzz/fuzz_targets/fuzz_target_hash.rs b/eth2/utils/hashing/fuzz/fuzz_targets/fuzz_target_hash.rs
new file mode 100644
index 000000000..dd78d1ac8
--- /dev/null
+++ b/eth2/utils/hashing/fuzz/fuzz_targets/fuzz_target_hash.rs
@@ -0,0 +1,9 @@
+#![no_main]
+#[macro_use] extern crate libfuzzer_sys;
+extern crate hashing;
+
+use hashing::hash;
+
+fuzz_target!(|data: &[u8]| {
+    let _result = hash(data);
+});