Merge pull request #169 from wingo/http-response

Add test for creating HTTP responses

Author: wingo

tests/rust/wasm32-wasip3/src/bin/http-response.rs

@@ -0,0 +1,62 @@
+extern crate wit_bindgen;
+
+wit_bindgen::generate!({
+    inline: r"
+  package test:test;
+
+  world test {
+      include wasi:http/imports@0.3.0-rc-2025-09-16;
+  }
+",
+    additional_derives: [PartialEq, Eq, Hash, Clone],
+    features:["clocks-timezone"],
+    generate_all
+});
+
+use wasi::http::types::{
+    Fields, HeaderError, Response
+};
+
+fn test_response_field_default_values(response: &Response) {
+    assert_eq!(response.get_status_code(), 200);
+}
+
+fn test_status_codes(response: &Response) {
+    for valid in [100, 101,
+                  200, 201, 202, 203, 204, 205, 206,
+                  300, 301, 302, 303, 304, 305, 306, 307, 308,
+                  400, 401, 402, 403, 404, 405, 406, 407, 408, 409,
+                  410, 411, 412, 413, 414, 415, 416, 417,
+                  421, 422, 426,
+                  500, 501, 502, 503, 504, 505] {
+        assert_eq!(response.set_status_code(valid as u16), Ok(()));
+        assert_eq!(response.get_status_code(), valid);
+    }
+    for invalid in [0, 42, 600, 1000, 69, 65535] {
+        response.set_status_code(invalid as u16).unwrap_err();
+    }
+}
+
+fn test_immutable_headers(headers: &Fields) {
+    assert_eq!(headers.append("Last-Modified", b"whatever"),
+               Err(HeaderError::Immutable));
+}
+
+fn test_headers_same(left: &Fields, right: &Fields) {
+    assert_eq!(left.copy_all(), right.copy_all());
+}
+
+fn main() {
+    let headers = Fields::new();
+    // No field-specific syntax checks.
+    headers.append("content-type", b"!!!! invalid").unwrap();
+    let contents = None;
+    let (_, trailers_rx) = wit_future::new(|| Ok(None));
+    let headers_copy = headers.clone();
+    let (response, _sent_future) = Response::new(headers, contents, trailers_rx);
+
+    test_response_field_default_values(&response);
+    test_status_codes(&response);
+    test_immutable_headers(&response.get_headers());
+    test_headers_same(&response.get_headers(), &headers_copy);
+}