Merge pull request #7484 from roc-lang/new-fuzzer-workflow

added fuzzer workflow

Author: Anton-4

.github/workflows/ci_manager.yml

@@ -124,6 +124,11 @@ jobs:
         if: needs.check-changes.outputs.run_tests == 'full'
         uses: ./.github/workflows/benchmarks.yml
 
+    start-fuzzer-tests:
+        needs: check-changes
+        if: needs.check-changes.outputs.run_tests == 'full'
+        uses: ./.github/workflows/fuzzer.yml
+
     ran-full:
         runs-on: ubuntu-22.04
         needs: [
@@ -136,7 +141,7 @@ jobs:
                 start-ubuntu-x86-64-nix-tests-debug,
                 start-windows-release-build-test,
                 start-windows-tests,
-                start-roc-benchmarks,
+                start-roc-benchmarks
             ]
         steps:
             - run: echo "all workflows succeeded!"

.github/workflows/fuzzer.yml

@@ -0,0 +1,20 @@
+on:
+  workflow_call:
+
+name: CI
+
+env:
+  RUST_BACKTRACE: 1
+
+jobs:
+  fuzz-test-parser:
+    name: Fuzz test parser (allowed to fail). Do check this if you've made changes to the parser.
+    runs-on: [self-hosted, i7-6700K]
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: run fuzz tests - ok to merge if this one fails # for now!
+        run: |
+         cargo +nightly-2024-02-03 install --locked cargo-fuzz
+         cd crates/compiler/test_syntax/fuzz && cargo +nightly-2024-02-03 fuzz run -j4 fuzz_expr --sanitizer=none -- -dict=dict.txt -max_total_time=60