add shopify_function_javy_v2 provider

build.rs

@@ -3,4 +3,5 @@ fn main() {
     println!("cargo:rerun-if-changed=providers/javy_quickjs_provider_v2.wasm");
     println!("cargo:rerun-if-changed=providers/javy_quickjs_provider_v3.wasm");
     println!("cargo:rerun-if-changed=providers/shopify_functions_javy_v1.wasm");
+    println!("cargo:rerun-if-changed=providers/shopify_functions_javy_v2.wasm");
 }

tests/fixtures/js_function_javy_plugin_v2/README.md

@@ -0,0 +1,7 @@
+#### Compile
+
+Use this command to recompile the `js_function_javy_plugin_v2.wasm`
+
+```
+javy build -C wit=index.wit -C wit-world=index-world -C dynamic -C plugin='../../../providers/shopify_functions_javy_v2.wasm' -o './js_function_javy_plugin_v2.wasm' './functions.js'
+```

tests/fixtures/js_function_javy_plugin_v2/functions.js

@@ -0,0 +1,31 @@
+// ../../node_modules/@shopify/shopify_function/run.ts
+function run_default(userfunction) {
+  if (!ShopifyFunction) {
+    throw new Error(
+      "ShopifyFunction is not defined. Please rebuild your function using the latest version of Shopify CLI."
+    );
+  }
+  const input_obj = ShopifyFunction.readInput();
+  const output_obj = userfunction(input_obj);
+  ShopifyFunction.writeOutput(output_obj);
+}
+
+// src/run.js
+var EMPTY_DISCOUNT = {
+  discountApplicationStrategy: "FIRST" /* First */,
+  discounts: []
+};
+function run(input) {
+  const configuration = JSON.parse(
+    input?.discountNode?.metafield?.value ?? "{}"
+  );
+  return EMPTY_DISCOUNT;
+}
+
+// <stdin>
+function run2() {
+  return run_default(run);
+}
+export {
+  run2 as run
+};

tests/fixtures/js_function_javy_plugin_v2/index.wit

@@ -0,0 +1,5 @@
+package local:main;
+
+world index-world {
+  export run: func(); 
+}

tests/integration_tests.rs

@@ -423,4 +423,36 @@ mod tests {
 
         Ok(())
     }
+
+    #[test]
+    fn run_javy_plugin_v2() -> Result<()> {
+        let mut cmd = Command::cargo_bin("function-runner")?;
+        let input = temp_input(json!({"hello": "world"}))?;
+
+        cmd.args([
+            "--function",
+            "tests/fixtures/build/js_function_javy_plugin_v2.wasm",
+        ])
+        .arg("--json")
+        .args(["--codec", "messagepack"])
+        .args(["--export", "run"])
+        .arg("--input")
+        .arg(input.as_os_str())
+        .stdout(Stdio::piped())
+        .spawn()
+        .expect("Failed to spawn child process")
+        .wait_with_output()
+        .expect("Failed waiting for output");
+
+        // Command should succeed
+        cmd.assert().success();
+
+        // Input should be returned
+        cmd.assert().stdout(contains("hello"));
+        cmd.assert().stdout(contains("world"));
+
+        // Module output should be returned
+        cmd.assert().stdout(contains("discountApplicationStrategy"));
+        Ok(())
+    }
 }