Bug 1353535 - Fix "copy as curl" POST request without json data. r=gasolin

--HG--
extra : rebase_source : 35d42a108df7e2241f8b0740a6ca8bc3997bdf13

devtools/client/netmonitor/test/browser_net_curl-utils.js

@@ -41,6 +41,7 @@ add_task(function* () {
   data = yield createCurlData(requests.post, getLongString);
   testIsUrlEncodedRequest(data);
   testWritePostDataTextParams(data);
+  testWriteEmptyPostDataTextParams(data);
   testDataArgumentOnGeneratedCommand(data);
 
   data = yield createCurlData(requests.multipart, getLongString);
@@ -103,6 +104,12 @@ function testWritePostDataTextParams(data) {
     "Should return a serialized representation of the request parameters");
 }
 
+function testWriteEmptyPostDataTextParams(data) {
+  let params = CurlUtils.writePostDataTextParams(null);
+  is(params, "",
+    "Should return a empty string when no parameters provided");
+}
+
 function testDataArgumentOnGeneratedCommand(data) {
   let curlCommand = Curl.generateCommand(data);
   ok(curlCommand.includes("--data"),

devtools/client/shared/curl.js

@@ -202,6 +202,9 @@ const CurlUtils = {
    *         Post data parameters.
    */
   writePostDataTextParams: function (postDataText) {
+    if (!postDataText) {
+      return "";
+    }
     let lines = postDataText.split("\r\n");
     return lines[lines.length - 1];
   },