add testing setup

tests/web.rs

@@ -0,0 +1,34 @@
+use serde::Deserialize;
+use serde::Serialize;
+use tauri_sys::{mocks::mock_ipc, tauri};
+use wasm_bindgen::JsError;
+use wasm_bindgen_test::wasm_bindgen_test;
+use wasm_bindgen_test::wasm_bindgen_test_configure;
+
+fn main() {
+    wasm_bindgen_test_configure!(run_in_browser);
+}
+
+#[wasm_bindgen_test]
+async fn testinvoke() -> Result<(), Box<dyn std::error::Error>> {
+    #[derive(Serialize, Deserialize)]
+    struct AddPayload {
+        a: u32,
+        b: u32,
+    }
+
+    mock_ipc(|cmd, payload| match cmd.as_str() {
+        "add" => {
+            let args: AddPayload = serde_wasm_bindgen::from_value(payload).unwrap();
+
+            Ok(args.a + args.b)
+        }
+        _ => Err(JsError::new("Unknown command")),
+    });
+
+    let out = tauri::invoke::<_, u32>("add", &AddPayload { a: 12, b: 15 }).await?;
+
+    assert_eq!(out, 27);
+
+    Ok(())
+}