diff -r 000000000000 -r 6474c204b198 browser/devtools/netmonitor/test/browser_net_status-codes.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/netmonitor/test/browser_net_status-codes.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,155 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Tests if requests display the correct status code and text in the UI.
+ */
+
+function test() {
+  initNetMonitor(STATUS_CODES_URL).then(([aTab, aDebuggee, aMonitor]) => {
+    info("Starting test... ");
+
+    let { document, L10N, NetMonitorView } = aMonitor.panelWin;
+    let { RequestsMenu, NetworkDetails } = NetMonitorView;
+
+    RequestsMenu.lazyUpdate = false;
+    NetworkDetails._params.lazyEmpty = false;
+
+    waitForNetworkEvents(aMonitor, 5).then(() => {
+      let requestItems = [];
+
+      verifyRequestItemTarget(requestItems[0] = RequestsMenu.getItemAtIndex(0),
+        "GET", STATUS_CODES_SJS + "?sts=100", {
+          status: 101,
+          statusText: "Switching Protocols",
+          type: "plain",
+          fullMimeType: "text/plain; charset=utf-8",
+          size: L10N.getFormatStrWithNumbers("networkMenu.sizeKB", 0),
+          time: true
+        });
+      verifyRequestItemTarget(requestItems[1] = RequestsMenu.getItemAtIndex(1),
+        "GET", STATUS_CODES_SJS + "?sts=200", {
+          status: 202,
+          statusText: "Created",
+          type: "plain",
+          fullMimeType: "text/plain; charset=utf-8",
+          size: L10N.getFormatStrWithNumbers("networkMenu.sizeKB", 0.02),
+          time: true
+        });
+      verifyRequestItemTarget(requestItems[2] = RequestsMenu.getItemAtIndex(2),
+        "GET", STATUS_CODES_SJS + "?sts=300", {
+          status: 303,
+          statusText: "See Other",
+          type: "plain",
+          fullMimeType: "text/plain; charset=utf-8",
+          size: L10N.getFormatStrWithNumbers("networkMenu.sizeKB", 0),
+          time: true
+        });
+      verifyRequestItemTarget(requestItems[3] = RequestsMenu.getItemAtIndex(3),
+        "GET", STATUS_CODES_SJS + "?sts=400", {
+          status: 404,
+          statusText: "Not Found",
+          type: "plain",
+          fullMimeType: "text/plain; charset=utf-8",
+          size: L10N.getFormatStrWithNumbers("networkMenu.sizeKB", 0.02),
+          time: true
+        });
+      verifyRequestItemTarget(requestItems[4] = RequestsMenu.getItemAtIndex(4),
+        "GET", STATUS_CODES_SJS + "?sts=500", {
+          status: 501,
+          statusText: "Not Implemented",
+          type: "plain",
+          fullMimeType: "text/plain; charset=utf-8",
+          size: L10N.getFormatStrWithNumbers("networkMenu.sizeKB", 0.02),
+          time: true
+        });
+
+      // Test summaries...
+      EventUtils.sendMouseEvent({ type: "mousedown" },
+        document.querySelectorAll("#details-pane tab")[0]);
+
+      EventUtils.sendMouseEvent({ type: "mousedown" }, requestItems[0].target);
+      testSummary("GET", STATUS_CODES_SJS + "?sts=100", "101", "Switching Protocols");
+
+      EventUtils.sendMouseEvent({ type: "mousedown" }, requestItems[1].target);
+      testSummary("GET", STATUS_CODES_SJS + "?sts=200", "202", "Created");
+
+      EventUtils.sendMouseEvent({ type: "mousedown" }, requestItems[2].target);
+      testSummary("GET", STATUS_CODES_SJS + "?sts=300", "303", "See Other");
+
+      EventUtils.sendMouseEvent({ type: "mousedown" }, requestItems[3].target);
+      testSummary("GET", STATUS_CODES_SJS + "?sts=400", "404", "Not Found");
+
+      EventUtils.sendMouseEvent({ type: "mousedown" }, requestItems[4].target);
+      testSummary("GET", STATUS_CODES_SJS + "?sts=500", "501", "Not Implemented");
+
+      // Test params...
+      EventUtils.sendMouseEvent({ type: "mousedown" },
+        document.querySelectorAll("#details-pane tab")[2]);
+
+      EventUtils.sendMouseEvent({ type: "mousedown" }, requestItems[0].target);
+      testParamsTab("\"100\"");
+
+      EventUtils.sendMouseEvent({ type: "mousedown" }, requestItems[1].target);
+      testParamsTab("\"200\"");
+
+      EventUtils.sendMouseEvent({ type: "mousedown" }, requestItems[2].target);
+      testParamsTab("\"300\"");
+
+      EventUtils.sendMouseEvent({ type: "mousedown" }, requestItems[3].target);
+      testParamsTab("\"400\"");
+
+      EventUtils.sendMouseEvent({ type: "mousedown" }, requestItems[4].target);
+      testParamsTab("\"500\"");
+
+      // We're done here.
+      teardown(aMonitor).then(finish);
+
+      function testSummary(aMethod, aUrl, aStatus, aStatusText) {
+        let tab = document.querySelectorAll("#details-pane tab")[0];
+        let tabpanel = document.querySelectorAll("#details-pane tabpanel")[0];
+
+        is(tabpanel.querySelector("#headers-summary-url-value").getAttribute("value"),
+          aUrl, "The url summary value is incorrect.");
+        is(tabpanel.querySelector("#headers-summary-method-value").getAttribute("value"),
+          aMethod, "The method summary value is incorrect.");
+        is(tabpanel.querySelector("#headers-summary-status-circle").getAttribute("code"),
+          aStatus, "The status summary code is incorrect.");
+        is(tabpanel.querySelector("#headers-summary-status-value").getAttribute("value"),
+          aStatus + " " + aStatusText, "The status summary value is incorrect.");
+      }
+
+      function testParamsTab(aStatusParamValue) {
+        let tab = document.querySelectorAll("#details-pane tab")[2];
+        let tabpanel = document.querySelectorAll("#details-pane tabpanel")[2];
+
+        is(tabpanel.querySelectorAll(".variables-view-scope").length, 1,
+          "There should be 1 param scope displayed in this tabpanel.");
+        is(tabpanel.querySelectorAll(".variable-or-property").length, 1,
+          "There should be 1 param value displayed in this tabpanel.");
+        is(tabpanel.querySelectorAll(".variables-view-empty-notice").length, 0,
+          "The empty notice should not be displayed in this tabpanel.");
+
+        let paramsScope = tabpanel.querySelectorAll(".variables-view-scope")[0];
+
+        is(paramsScope.querySelector(".name").getAttribute("value"),
+          L10N.getStr("paramsQueryString"),
+          "The params scope doesn't have the correct title.");
+
+        is(paramsScope.querySelectorAll(".variables-view-variable .name")[0].getAttribute("value"),
+          "sts", "The param name was incorrect.");
+        is(paramsScope.querySelectorAll(".variables-view-variable .value")[0].getAttribute("value"),
+          aStatusParamValue, "The param value was incorrect.");
+
+        is(tabpanel.querySelector("#request-params-box")
+          .hasAttribute("hidden"), false,
+          "The request params box should not be hidden.");
+        is(tabpanel.querySelector("#request-post-data-textarea-box")
+          .hasAttribute("hidden"), true,
+          "The request post data textarea box should be hidden.");
+      }
+    });
+
+    aDebuggee.performRequests();
+  });
+}