Bug 1783567 - test case, r=necko-reviewers,dragana

Differential Revision: https://phabricator.services.mozilla.com/D153940

netwerk/test/unit/test_http2.js

@@ -684,6 +684,12 @@ function test_http2_post() {
   do_post(posts[0], chan, listener, "POST");
 }
 
+function test_http2_empty_post() {
+  var chan = makeChan("https://localhost:" + serverPort + "/post");
+  var listener = new Http2PostListener("0");
+  do_post("", chan, listener, "POST");
+}
+
 // Make sure we can do a simple PATCH
 function test_http2_patch() {
   var chan = makeChan("https://localhost:" + serverPort + "/patch");
@@ -1319,6 +1325,7 @@ var tests = [
   test_http2_big,
   test_http2_huge_suspended,
   test_http2_post,
+  test_http2_empty_post,
   test_http2_patch,
   test_http2_pushapi_1,
   test_http2_continuations,

testing/xpcshell/moz-http2/moz-http2.js

@@ -719,11 +719,13 @@ function handleRequest(req, res) {
     }
 
     var post_hash = crypto.createHash("md5");
+    var received_data = false;
     req.on("data", function receivePostData(chunk) {
+      received_data = true;
       post_hash.update(chunk.toString());
     });
     req.on("end", function finishPost() {
-      let md5 = post_hash.digest("hex");
+      let md5 = received_data ? post_hash.digest("hex") : "0";
       res.setHeader("X-Calculated-MD5", md5);
       res.writeHead(200);
       res.end(content);