1 files changed, 81 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser_webconsole_bug_642108_pruneTest.js b/devtools/client/webconsole/test/browser_webconsole_bug_642108_pruneTest.js
new file mode 100644
index 000000000..caaa73628
--- /dev/null
+++ b/devtools/client/webconsole/test/browser_webconsole_bug_642108_pruneTest.js
@@ -0,0 +1,81 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests that the Web Console limits the number of lines displayed according to
+// the user's preferences.
+
+"use strict";
+
+const TEST_URI = "data:text/html;charset=utf-8,<p>test for bug 642108.";
+const LOG_LIMIT = 20;
+
+function test() {
+  let hud;
+
+  Task.spawn(runner).then(finishTest);
+
+  function* runner() {
+    let {tab} = yield loadTab(TEST_URI);
+
+    Services.prefs.setIntPref("devtools.hud.loglimit.cssparser", LOG_LIMIT);
+    Services.prefs.setBoolPref("devtools.webconsole.filter.cssparser", true);
+
+    registerCleanupFunction(function () {
+      Services.prefs.clearUserPref("devtools.hud.loglimit.cssparser");
+      Services.prefs.clearUserPref("devtools.webconsole.filter.cssparser");
+    });
+
+    hud = yield openConsole(tab);
+
+    for (let i = 0; i < 5; i++) {
+      logCSSMessage("css log x");
+    }
+
+    yield waitForMessages({
+      webconsole: hud,
+      messages: [{
+        text: "css log x",
+        category: CATEGORY_CSS,
+        severity: SEVERITY_WARNING,
+        repeats: 5,
+      }],
+    });
+
+    for (let i = 0; i < LOG_LIMIT + 5; i++) {
+      logCSSMessage("css log " + i);
+    }
+
+    let [result] = yield waitForMessages({
+      webconsole: hud,
+      messages: [{
+        text: "css log 5",
+        category: CATEGORY_CSS,
+        severity: SEVERITY_WARNING,
+      },
+        {
+        // LOG_LIMIT + 5
+          text: "css log 24",
+          category: CATEGORY_CSS,
+          severity: SEVERITY_WARNING,
+        }],
+    });
+
+    is(hud.ui.outputNode.querySelectorAll(".message").length, LOG_LIMIT,
+       "number of messages");
+
+    is(Object.keys(hud.ui._repeatNodes).length, LOG_LIMIT,
+       "repeated nodes pruned from repeatNodes");
+
+    let msg = [...result.matched][0];
+    let repeats = msg.querySelector(".message-repeats");
+    is(repeats.getAttribute("value"), 1,
+       "repeated nodes pruned from repeatNodes (confirmed)");
+  }
+
+  function logCSSMessage(msg) {
+    let node = hud.ui.createMessageNode(CATEGORY_CSS, SEVERITY_WARNING, msg);
+    hud.ui.outputMessage(CATEGORY_CSS, node);
+  }
+}