feat(template): Add query method to template (#519)

templates/program/app/src/lib.rs

@@ -14,6 +14,11 @@ impl {{ service-struct-name }} {
     pub fn do_something(&mut self) -> String {
         "Hello from {{ service-name }}!".to_string()
     }
+
+    // Service's query
+    pub fn get_something(&self) -> String {
+        "Hello from {{ service-name }}!".to_string()
+    }    
 }
 
 pub struct {{ program-struct-name }}(());

templates/program/tests/gtest.rs

@@ -15,18 +15,45 @@ async fn do_something_works() {
     let program_factory = {{ client_crate_name }}::{{ service-name }}Factory::new(remoting.clone());
 
     let program_id = program_factory
-        .new() // Call program's constructor (see src/lib.rs:27)
+        .new() // Call program's constructor (see app/src/lib.rs:29)
         .send_recv(program_code_id, b"salt")
         .await
         .unwrap();
 
     let mut service_client = {{ client_crate_name }}::{{ service-name }}::new(remoting.clone());
 
     let result = service_client
-        .do_something() // Call service's method (see src/lib.rs:17)
+        .do_something() // Call service's method (see app/src/lib.rs:14)
         .send_recv(program_id)
         .await
         .unwrap();
 
     assert_eq!(result, "Hello from {{ service-name }}!".to_string());
 }
+
+#[tokio::test]
+async fn get_something_works() {
+    let remoting = GTestRemoting::new(ACTOR_ID.into());
+    remoting.system().init_logger();
+
+    // Submit program code into the system
+    let program_code_id = remoting.system().submit_code({{ crate_name }}::WASM_BINARY);
+
+    let program_factory = {{ client_crate_name }}::{{ service-name }}Factory::new(remoting.clone());
+
+    let program_id = program_factory
+        .new() // Call program's constructor (see app/src/lib.rs:29)
+        .send_recv(program_code_id, b"salt")
+        .await
+        .unwrap();
+
+    let service_client = {{ client_crate_name }}::{{ service-name }}::new(remoting.clone());
+
+    let result = service_client
+        .get_something() // Call service's query (see app/src/lib.rs:19)
+        .recv(program_id)
+        .await
+        .unwrap();
+
+    assert_eq!(result, "Hello from {{ service-name }}!".to_string());
+}