fixup! test(api): Mockup how to test a Rust function from Lua

rusile/src/lib.rs

@@ -8,12 +8,12 @@ use sile::rusile_demo;
 #[mlua::lua_module]
 fn rusile(lua: &Lua) -> LuaResult<LuaTable> {
     let exports = lua.create_table().unwrap();
-    let foo: LuaFunction = lua.create_function(foo).unwrap();
-    exports.set("foo", foo)?;
+    let demo: LuaFunction = lua.create_function(demo).unwrap();
+    exports.set("demo", demo)?;
     Ok(exports)
 }
 
-fn foo(lua: &Lua, (): ()) -> LuaResult<LuaString> {
-    let s = rusile_demo();
-    lua.create_string(s)
+fn demo(lua: &Lua, (): ()) -> LuaResult<LuaString> {
+    let res = rusile_demo().unwrap();
+    lua.create_string(res)
 }

spec/rusile_spec.lua

@@ -6,10 +6,10 @@ describe("rusile", function ()
       assert.is.truthy(SILE._rusile)
    end)
 
-   describe("foo ", function ()
+   describe("demo ", function ()
       it("should return a test string", function ()
          local str = "Hello from rusile"
-         assert.is.equal(str, SILE._rusile.foo())
+         assert.is.equal(str, SILE._rusile.demo())
       end)
    end)
 

src/lib.rs

@@ -201,6 +201,6 @@ fn paths_to_strings(paths: Vec<PathBuf>) -> Vec<String> {
     paths.iter().map(path_to_string).collect()
 }
 
-pub fn rusile_demo() -> String {
-    "Hello from rusile".to_string()
+pub fn rusile_demo() -> Result<String> {
+    Ok("Hello from rusile".to_string())
 }