From 6ee137ab2621aae2131851a9d976b71e7e939922 Mon Sep 17 00:00:00 2001
From: stringhandler <stringhandler@protonmail.com>
Date: Tue, 25 Aug 2026 14:17:44 +0200
Subject: [PATCH] ci: add cargo hack to test all features

Adds cargo hack to the Github job to check that all combinations of the features compile.
---
 .github/workflows/main.yml | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 824cf5b2..96052215 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -98,6 +98,25 @@ jobs:
           echo "No default features" && cargo test --locked --no-default-features
           echo "All features" && cargo test --locked --all-features
 
+  feature_matrix:
+    name: Feature Matrix (cargo hack)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Crate
+        uses: actions/checkout@v4
+      - name: Checkout Toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: Install cargo-hack
+        run: cargo install cargo-hack --locked
+      - name: Set dependencies
+        run: cp Cargo-recent.lock Cargo.lock
+      - name: Running cargo hack over the feature powerset
+        env:
+          RUSTFLAGS: "-D warnings"
+        run: |
+          cargo hack check --locked --workspace --exclude simplicity-fuzz \
+            --all-targets --feature-powerset
+
   ignored:
     name: Ignored Tests
     runs-on: ubuntu-latest