diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 05f7397..6f6fc10 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -16,8 +16,14 @@ jobs:
         with:
           submodules: true
 
-      - name: Install stable Rust toolchain
-        run: rustup update stable
+      - name: Install stable Rust toolchain & Binaryen
+        run: |
+          rustup update stable
+          rustup update nightly
+          sudo apt-get install -y binaryen
+
+      - name: Build wasm
+        run: ./examples/rust/build.sh
 
       - name: Build (stable)
         run: cargo +stable build --workspace
@@ -37,8 +43,13 @@ jobs:
         with:
           submodules: true
 
-      - name: Install nightly Rust toolchain
-        run: rustup update nightly
+      - name: Install nightly Rust toolchain & Binaryen
+        run: |
+          rustup update nightly
+          sudo apt-get install -y binaryen
+
+      - name: Build wasm
+        run: ./examples/rust/build.sh
 
       - name: Build (nightly, no default features)
         run: cargo +nightly build --workspace --no-default-features
diff --git a/examples/wasm-rust.rs b/examples/wasm-rust.rs
index 2c50c4f..3b26863 100644
--- a/examples/wasm-rust.rs
+++ b/examples/wasm-rust.rs
@@ -1,7 +1,6 @@
 use color_eyre::eyre::Result;
 use tinywasm::{Extern, FuncContext, Imports, Module, Store};
 
-#[cfg(not(test))]
 fn main() -> Result<()> {
     let args = std::env::args().collect::<Vec<_>>();
     if args.len() < 2 {
@@ -22,7 +21,6 @@ fn main() -> Result<()> {
     Ok(())
 }
 
-#[cfg(not(test))]
 fn tinywasm() -> Result<()> {
     const TINYWASM: &[u8] = include_bytes!("./rust/out/tinywasm.wasm");
     let module = Module::parse_bytes(&TINYWASM)?;
@@ -45,7 +43,6 @@ fn tinywasm() -> Result<()> {
     Ok(())
 }
 
-#[cfg(not(test))]
 fn hello() -> Result<()> {
     const HELLO_WASM: &[u8] = include_bytes!("./rust/out/hello.wasm");
     let module = Module::parse_bytes(&HELLO_WASM)?;
@@ -68,7 +65,6 @@ fn hello() -> Result<()> {
     Ok(())
 }
 
-#[cfg(not(test))]
 fn fibonacci() -> Result<()> {
     const FIBONACCI_WASM: &[u8] = include_bytes!("./rust/out/fibonacci.wasm");
     let module = Module::parse_bytes(&FIBONACCI_WASM)?;