5 files changed, 198 insertions, 0 deletions
diff --git a/test/wasm_component/hello_world/Cargo.lock b/test/wasm_component/hello_world/Cargo.lock
new file mode 100644
index 00000000..2daeb73d
--- /dev/null
+++ b/test/wasm_component/hello_world/Cargo.lock
@@ -0,0 +1,34 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "bitflags"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
+
+[[package]]
+name = "test-wasi-component"
+version = "0.1.0"
+dependencies = [
+ "bitflags",
+ "wasi",
+ "wit-bindgen-rt",
+]
+
+[[package]]
+name = "wasi"
+version = "0.13.0+wasi-0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "652cd73449d0b957a2743b70c72d79d34a5fa505696488f4ca90b46f6da94118"
+dependencies = [
+ "bitflags",
+ "wit-bindgen-rt",
+]
+
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "026d24a27f6712541fa534f2954bd9e0eb66172f033c2157c0f31d106255c497"
diff --git a/test/wasm_component/hello_world/Cargo.toml b/test/wasm_component/hello_world/Cargo.toml
new file mode 100644
index 00000000..a87fbeb5
--- /dev/null
+++ b/test/wasm_component/hello_world/Cargo.toml
@@ -0,0 +1,18 @@
+[package]
+name = "test-wasi-component"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+bitflags = "2.4.2"
+wit-bindgen-rt = "0.21.0"
+wasi = "0.13.0"
+
+[lib]
+crate-type = ["cdylib"]
+
+[package.metadata.component]
+package = "component:test-wasi-component"
+proxy = true
+
+[package.metadata.component.dependencies]
diff --git a/test/wasm_component/hello_world/src/bindings.rs b/test/wasm_component/hello_world/src/bindings.rs
new file mode 100644
index 00000000..a0d74c42
--- /dev/null
+++ b/test/wasm_component/hello_world/src/bindings.rs
@@ -0,0 +1,109 @@
+// Generated by `wit-bindgen` 0.24.0. DO NOT EDIT!
+// Options used:
+#[doc(hidden)]
+#[allow(non_snake_case)]
+pub unsafe fn _export_hello_world_cabi<T: Guest>() -> *mut u8 {
+    #[cfg(target_arch = "wasm32")]
+    _rt::run_ctors_once();
+    let result0 = T::hello_world();
+    let ptr1 = _RET_AREA.0.as_mut_ptr().cast::<u8>();
+    let vec2 = (result0.into_bytes()).into_boxed_slice();
+    let ptr2 = vec2.as_ptr().cast::<u8>();
+    let len2 = vec2.len();
+    ::core::mem::forget(vec2);
+    *ptr1.add(4).cast::<usize>() = len2;
+    *ptr1.add(0).cast::<*mut u8>() = ptr2.cast_mut();
+    ptr1
+}
+#[doc(hidden)]
+#[allow(non_snake_case)]
+pub unsafe fn __post_return_hello_world<T: Guest>(arg0: *mut u8) {
+    let l0 = *arg0.add(0).cast::<*mut u8>();
+    let l1 = *arg0.add(4).cast::<usize>();
+    _rt::cabi_dealloc(l0, l1, 1);
+}
+pub trait Guest {
+    fn hello_world() -> _rt::String;
+}
+#[doc(hidden)]
+
+macro_rules! __export_world_example_cabi{
+  ($ty:ident with_types_in $($path_to_types:tt)*) => (const _: () = {
+
+    #[export_name = "hello-world"]
+    unsafe extern "C" fn export_hello_world() -> *mut u8 {
+      $($path_to_types)*::_export_hello_world_cabi::<$ty>()
+    }
+    #[export_name = "cabi_post_hello-world"]
+    unsafe extern "C" fn _post_return_hello_world(arg0: *mut u8,) {
+      $($path_to_types)*::__post_return_hello_world::<$ty>(arg0)
+    }
+  };);
+}
+#[doc(hidden)]
+pub(crate) use __export_world_example_cabi;
+#[repr(align(4))]
+struct _RetArea([::core::mem::MaybeUninit<u8>; 8]);
+static mut _RET_AREA: _RetArea =
+    _RetArea([::core::mem::MaybeUninit::uninit(); 8]);
+mod _rt {
+
+    #[cfg(target_arch = "wasm32")]
+    pub fn run_ctors_once() {
+        wit_bindgen_rt::run_ctors_once();
+    }
+    pub unsafe fn cabi_dealloc(ptr: *mut u8, size: usize, align: usize) {
+        if size == 0 {
+            return;
+        }
+        let layout = alloc::Layout::from_size_align_unchecked(size, align);
+        alloc::dealloc(ptr as *mut u8, layout);
+    }
+    pub use alloc_crate::alloc;
+    pub use alloc_crate::string::String;
+    extern crate alloc as alloc_crate;
+}
+
+/// Generates `#[no_mangle]` functions to export the specified type as the
+/// root implementation of all generated traits.
+///
+/// For more information see the documentation of `wit_bindgen::generate!`.
+///
+/// ```rust
+/// # macro_rules! export{ ($($t:tt)*) => (); }
+/// # trait Guest {}
+/// struct MyType;
+///
+/// impl Guest for MyType {
+///     // ...
+/// }
+///
+/// export!(MyType);
+/// ```
+#[allow(unused_macros)]
+#[doc(hidden)]
+
+macro_rules! __export_example_impl {
+  ($ty:ident) => (self::export!($ty with_types_in self););
+  ($ty:ident with_types_in $($path_to_types_root:tt)*) => (
+  $($path_to_types_root)*::__export_world_example_cabi!($ty with_types_in $($path_to_types_root)*);
+  )
+}
+#[doc(inline)]
+pub(crate) use __export_example_impl as export;
+
+#[cfg(target_arch = "wasm32")]
+#[link_section = "component-type:wit-bindgen:0.24.0:example:encoded world"]
+#[doc(hidden)]
+pub static __WIT_BINDGEN_COMPONENT_TYPE: [u8; 194] = *b"\
+\0asm\x0d\0\x01\0\0\x19\x16wit-component-encoding\x04\0\x07E\x01A\x02\x01A\x02\x01\
+@\0\0s\x04\0\x0bhello-world\x01\0\x04\x01%component:test-wasi-component/example\x04\
+\0\x0b\x0d\x01\0\x07example\x03\0\0\0G\x09producers\x01\x0cprocessed-by\x02\x0dw\
+it-component\x070.202.0\x10wit-bindgen-rust\x060.24.0";
+
+#[inline(never)]
+#[doc(hidden)]
+#[cfg(target_arch = "wasm32")]
+pub fn __link_custom_section_describing_imports() {
+    wit_bindgen_rt::maybe_link_cabi_realloc();
+}
diff --git a/test/wasm_component/hello_world/src/lib.rs b/test/wasm_component/hello_world/src/lib.rs
new file mode 100644
index 00000000..a1e40ef6
--- /dev/null
+++ b/test/wasm_component/hello_world/src/lib.rs
@@ -0,0 +1,31 @@
+use wasi::http::types::{
+   Fields, IncomingRequest, OutgoingBody, OutgoingResponse, ResponseOutparam,
+};
+
+wasi::http::proxy::export!(Component);
+
+struct Component;
+
+impl wasi::exports::http::incoming_handler::Guest for Component {
+   fn handle(_request: IncomingRequest, response_out: ResponseOutparam) {
+
+      let hdrs = Fields::new();
+      let mesg = String::from("Hello");
+      let _try = hdrs.set(&"Content-Type".to_string(), &[b"plain/text".to_vec()]);
+      let _try = hdrs.set(&"Content-Length".to_string(), &[mesg.len().to_string().as_bytes().to_vec()]);
+
+      let resp = OutgoingResponse::new(hdrs);
+
+      // Add the HTTP Response Status Code
+      resp.set_status_code(200).unwrap();
+
+      let body = resp.body().unwrap();
+      ResponseOutparam::set(response_out, Ok(resp));
+
+      let out = body.write().unwrap();
+      out.blocking_write_and_flush(mesg.as_bytes()).unwrap();
+      drop(out);
+
+      OutgoingBody::finish(body, None).unwrap();
+   }
+}
diff --git a/test/wasm_component/hello_world/wit/world.wit b/test/wasm_component/hello_world/wit/world.wit
new file mode 100644
index 00000000..82c810ef
--- /dev/null
+++ b/test/wasm_component/hello_world/wit/world.wit
@@ -0,0 +1,6 @@
+package component:test-wasi-component;
+
+/// An example world for the component to target.
+world example {
+    export hello-world: func() -> string;
+}