1 files changed, 78 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/test/browser_net_truncate-post-data.js b/devtools/client/netmonitor/test/browser_net_truncate-post-data.js
new file mode 100644
index 0000000000..70cdab11b4
--- /dev/null
+++ b/devtools/client/netmonitor/test/browser_net_truncate-post-data.js
@@ -0,0 +1,78 @@
+/* Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Bug 1542172 -
+ * Verifies that requests with large post data are truncated and error is displayed.
+ */
+add_task(async function () {
+  const { monitor, tab } = await initNetMonitor(POST_JSON_URL, {
+    requestCount: 1,
+  });
+
+  info("Starting test... ");
+
+  const {
+    L10N,
+  } = require("resource://devtools/client/netmonitor/src/utils/l10n.js");
+
+  const { document, store, windowRequire } = monitor.panelWin;
+  const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
+  store.dispatch(Actions.batchEnable(false));
+
+  requestLongerTimeout(2);
+
+  info("Perform requests");
+  await performRequestsAndWait(monitor, tab);
+
+  await waitUntil(() => document.querySelector(".request-list-item"));
+  const item = document.querySelectorAll(".request-list-item")[0];
+  await waitUntil(() => item.querySelector(".requests-list-type").title);
+
+  // Make sure the header and editor are loaded
+  const waitHeader = waitForDOM(document, "#request-panel .data-header");
+  const waitSourceEditor = waitForDOM(
+    document,
+    "#request-panel .CodeMirror.cm-s-mozilla"
+  );
+
+  store.dispatch(Actions.toggleNetworkDetails());
+  clickOnSidebarTab(document, "request");
+
+  await Promise.all([waitHeader, waitSourceEditor]);
+
+  const tabpanel = document.querySelector("#request-panel");
+  is(
+    tabpanel.querySelector(".request-error-header") === null,
+    false,
+    "The request error header doesn't have the intended visibility."
+  );
+  is(
+    tabpanel.querySelector(".request-error-header").textContent,
+    "Request has been truncated",
+    "The error message shown is incorrect"
+  );
+  const jsonView = tabpanel.querySelector(".data-label") || {};
+  is(
+    jsonView.textContent === L10N.getStr("jsonScopeName"),
+    false,
+    "The params json view doesn't have the intended visibility."
+  );
+  is(
+    tabpanel.querySelector("PRE") === null,
+    false,
+    "The Request Payload has the intended visibility."
+  );
+
+  return teardown(monitor);
+});
+
+async function performRequestsAndWait(monitor, tab) {
+  const wait = waitForNetworkEvents(monitor, 1);
+  await SpecialPowers.spawn(tab.linkedBrowser, [], async function () {
+    content.wrappedJSObject.performLargePostDataRequest();
+  });
+  await wait;
+}