feat: proxytest getters for request and response headers (#87)

Author: tkrns

proxytest/http.go

@@ -313,6 +313,26 @@ func (h *httpHostEmulator) HttpFilterPutRequestHeaders(contextID uint32, headers
 	h.HttpFilterPutRequestHeadersEndOfStream(contextID, headers, false)
 }
 
+// impl HostEmulator
+func (h *httpHostEmulator) HttpFilterGetRequestHeaders(contextID uint32) (headers [][2]string) {
+	cs, ok := h.httpStreams[contextID]
+	if !ok {
+		log.Fatalf("invalid context id: %d", contextID)
+	}
+
+	return cs.requestHeaders
+}
+
+// impl HostEmulator
+func (h *httpHostEmulator) HttpFilterGetResponseHeaders(contextID uint32) (headers [][2]string) {
+	cs, ok := h.httpStreams[contextID]
+	if !ok {
+		log.Fatalf("invalid context id: %d", contextID)
+	}
+
+	return cs.responseHeaders
+}
+
 // impl HostEmulator
 func (h *httpHostEmulator) HttpFilterPutRequestHeadersEndOfStream(contextID uint32, headers [][2]string, endOfStream bool) {
 	cs, ok := h.httpStreams[contextID]

proxytest/proxytest.go

@@ -37,8 +37,10 @@ type HostEmulator interface {
 	// http
 	HttpFilterInitContext() (contextID uint32)
 	HttpFilterPutRequestHeaders(contextID uint32, headers [][2]string)
+	HttpFilterGetRequestHeaders(contextID uint32) (headers [][2]string)
 	HttpFilterPutRequestHeadersEndOfStream(contextID uint32, headers [][2]string, endOfStream bool)
 	HttpFilterPutResponseHeaders(contextID uint32, headers [][2]string)
+	HttpFilterGetResponseHeaders(contextID uint32) (headers [][2]string)
 	HttpFilterPutResponseHeadersEndOfStream(contextID uint32, headers [][2]string, endOfStream bool)
 	HttpFilterPutRequestTrailers(contextID uint32, headers [][2]string)
 	HttpFilterPutResponseTrailers(contextID uint32, headers [][2]string)