Add a test for rejecting forbidden headers

Author: elliottt

crates/test-programs/src/bin/http_outbound_request_invalid_header.rs

@@ -0,0 +1,12 @@
+use test_programs::wasi::http::types::{FieldsType, Headers};
+
+fn main() {
+    let hdrs = Headers::new(FieldsType::Request, &[]);
+    assert!(hdrs
+        .set(&"transfer-encoding".to_owned(), &[b"bad".to_vec()])
+        .is_err());
+
+    assert!(hdrs
+        .append(&"tRaNsFeR-eNcOdInG".to_owned(), &b"bad".to_vec())
+        .is_err());
+}

crates/wasi-http/tests/all/async_.rs

@@ -49,6 +49,12 @@ async fn http_outbound_request_invalid_version() -> Result<()> {
     run(HTTP_OUTBOUND_REQUEST_INVALID_VERSION_COMPONENT, &server).await
 }
 
+#[test_log::test(tokio::test(flavor = "multi_thread"))]
+async fn http_outbound_request_invalid_header() -> Result<()> {
+    let server = Server::http2()?;
+    run(HTTP_OUTBOUND_REQUEST_INVALID_HEADER_COMPONENT, &server).await
+}
+
 #[test_log::test(tokio::test(flavor = "multi_thread"))]
 async fn http_outbound_request_unknown_method() -> Result<()> {
     let server = Server::http1()?;

crates/wasi-http/tests/all/sync.rs

@@ -48,6 +48,12 @@ fn http_outbound_request_invalid_version() -> Result<()> {
     run(HTTP_OUTBOUND_REQUEST_INVALID_VERSION_COMPONENT, &server)
 }
 
+#[test_log::test]
+fn http_outbound_request_invalid_header() -> Result<()> {
+    let server = Server::http2()?;
+    run(HTTP_OUTBOUND_REQUEST_INVALID_HEADER_COMPONENT, &server)
+}
+
 #[test_log::test]
 fn http_outbound_request_unknown_method() -> Result<()> {
     let server = Server::http1()?;