Support optional result fields

examples/simple/justfile

@@ -6,3 +6,10 @@ build:
 run:
     just build
     cargo run -p pulumi_wasm_runner -- run --wasm ../../target/wasm32-wasi/debug/composed.wasm
+
+[windows]
+local-test:
+    #!pwsh
+    $env:PULUMI_CONFIG_PASSPHRASE=" "
+    pulumi destroy -y
+    pulumi up -y

examples/simple/src/lib.rs

@@ -25,6 +25,10 @@ fn test_main() -> Result<(), Error> {
         special: None.into(),
         upper: None.into(),
     });
+
+    let t = random_string.result.map(|s| format!("Result: {s}"));
+
     add_export("result", random_string.result);
+    add_export("transformed_result", t);
     Ok(())
 }

examples/simple/tests/test.rs

@@ -49,7 +49,14 @@ fn test_integration() -> Result<(), anyhow::Error> {
         .as_str()
         .ok_or(anyhow!("[result] is not a string"))?;
 
+    let transformed_result = stack
+        .pointer("/transformed_result")
+        .ok_or(anyhow!("Cannot find [transformed_result] in stack export"))?
+        .as_str()
+        .ok_or(anyhow!("[transformed_result] is not a string"))?;
+
     assert_eq!(result.len(), 36);
+    assert_eq!(transformed_result, format!("Result: {}", result));
 
     Ok(())
 }