Add first fuzz target for fuzzing simplify algorithm.

thehappycheese · Feb 26, 2021 · 1e36d1e · 1e36d1e
1 parent 54c09a4
commit 1e36d1e
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diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
@@ -15,6 +15,7 @@ jobs:
       - geo_types
       - geo
       - geo_postgis
+      - geo_fuzz
       - coverage
       - bench
     steps:
@@ -24,6 +25,7 @@ jobs:
       - name: Mark the job as a failure
         if: "!success()"
         run: exit 1
+
   geo_types:
     name: geo-types
     runs-on: ubuntu-latest
@@ -80,6 +82,24 @@ jobs:
       - run: cargo install cargo-all-features
       - run: cargo build-all-features
       - run: cargo test-all-features
+
+  geo_fuzz:
+    name: geo-fuzz
+    runs-on: ubuntu-latest
+    if: "!contains(github.event.head_commit.message, '[skip ci]')"
+    defaults:
+      run:
+        working-directory: geo/fuzz
+    strategy:
+      matrix:
+        container_image: ["georust/geo-ci:rust-1.49", "georust/geo-ci:rust-1.50"]
+    container:
+      image: ${{ matrix.container_image }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      - run: cargo build --bins
+
   coverage:
     name: coverage
     runs-on: ubuntu-latest

diff --git a/geo/fuzz/.gitignore b/geo/fuzz/.gitignore
@@ -0,0 +1,3 @@
+target
+corpus
+artifacts
diff --git a/geo/fuzz/Cargo.toml b/geo/fuzz/Cargo.toml
@@ -0,0 +1,29 @@
+[package]
+name = "geo-fuzz"
+version = "0.0.0"
+authors = ["Automatically generated"]
+publish = false
+edition = "2018"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = "0.4"
+
+[dependencies.geo]
+path = ".."
+
+[dependencies.geo-types]
+path = "../../geo-types"
+features = ["arbitrary"]
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "simplify"
+path = "fuzz_targets/simplify.rs"
+test = false
+doc = false
diff --git a/geo/fuzz/fuzz_targets/simplify.rs b/geo/fuzz/fuzz_targets/simplify.rs
@@ -0,0 +1,11 @@
+#![no_main]
+
+use geo::algorithm::simplify::Simplify;
+use libfuzzer_sys::fuzz_target;
+
+fuzz_target!(|tuple: (geo_types::Polygon<f32>, f32)| {
+    if tuple.1 < 0. {
+        return;
+    }
+    tuple.0.simplify(&tuple.1);
+});