Run fuzzer in CI.

.github/workflows/build.yml

@@ -58,4 +58,19 @@ jobs:
           path: './pages/dist/'
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v2
+        uses: actions/deploy-pages@v2
+  fuzz:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          override: true
+      - name: Install cargo-fuzz
+        uses: baptiste0928/cargo-install@v3
+        with:
+          crate: cargo-fuzz
+          locked: false
+      - name: Fuzz
+        run: RUST_BACKTRACE=1 cargo fuzz run fuzz -- -max_total_time=900

fuzz/Cargo.toml

@@ -13,7 +13,7 @@ libfuzzer-sys = "0.4"
 
 [dependencies.rustrict]
 path = ".."
-features = ["width"]
+features = ["pii", "width"]
 
 # Prevent this from interfering with workspaces
 [workspace]

fuzz/fuzz_targets/fuzz.rs

@@ -10,6 +10,7 @@ fuzz_target!(|data: &[u8]| {
         if let Ok(text) = std::str::from_utf8(input) {
             let _ = rustrict::width_str(text);
             let _ = rustrict::trim_to_width(text, 10);
+            let _ = rustrict::censor_and_analyze_pii(text);
 
             let (_censored, _analysis) = Censor::from_str(text)
                 .with_ignore_self_censoring(flag(flags, 0))