1 files changed, 104 insertions, 0 deletions
diff --git a/browser/devtools/webconsole/test/browser_webconsole_bug_613642_maintain_scroll.js b/browser/devtools/webconsole/test/browser_webconsole_bug_613642_maintain_scroll.js
new file mode 100644
index 000000000..b3317a669
--- /dev/null
+++ b/browser/devtools/webconsole/test/browser_webconsole_bug_613642_maintain_scroll.js
@@ -0,0 +1,104 @@
+/* vim:set ts=2 sw=2 sts=2 et: */
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ *
+ * Contributor(s):
+ *   Mihai Șucan <mihai.sucan@gmail.com>
+ */
+
+let hud, testDriver;
+
+function testNext() {
+  testDriver.next();
+}
+
+function testGen() {
+  hud.jsterm.clearOutput();
+  let outputNode = hud.outputNode;
+  let scrollBox = outputNode.scrollBoxObject.element;
+
+  for (let i = 0; i < 150; i++) {
+    content.console.log("test message " + i);
+  }
+
+  waitForSuccess({
+    name: "150 console.log messages displayed",
+    validatorFn: function()
+    {
+      return outputNode.querySelectorAll(".hud-log").length == 150;
+    },
+    successFn: testNext,
+    failureFn: finishTest,
+  });
+
+  yield;
+
+  let oldScrollTop = scrollBox.scrollTop;
+  ok(oldScrollTop > 0, "scroll location is not at the top");
+
+  // scroll to the first node
+  outputNode.focus();
+
+  EventUtils.synthesizeKey("VK_HOME", {});
+
+  let topPosition = scrollBox.scrollTop;
+  isnot(topPosition, oldScrollTop, "scroll location updated (moved to top)");
+
+  // add a message and make sure scroll doesn't change
+  content.console.log("test message 150");
+
+  waitForSuccess({
+    name: "console.log message no. 151 displayed",
+    validatorFn: function()
+    {
+      return outputNode.querySelectorAll(".hud-log").length == 151;
+    },
+    successFn: testNext,
+    failureFn: finishTest,
+  });
+
+  yield;
+
+  is(scrollBox.scrollTop, topPosition, "scroll location is still at the top");
+
+  // scroll back to the bottom
+  outputNode.lastChild.focus();
+  EventUtils.synthesizeKey("VK_END", {});
+
+  oldScrollTop = outputNode.scrollTop;
+
+  content.console.log("test message 151");
+
+  waitForSuccess({
+    name: "console.log message no. 152 displayed",
+    validatorFn: function()
+    {
+      return outputNode.querySelectorAll(".hud-log").length == 152;
+    },
+    successFn: testNext,
+    failureFn: finishTest,
+  });
+
+  yield;
+
+  isnot(scrollBox.scrollTop, oldScrollTop,
+        "scroll location updated (moved to bottom)");
+
+  hud = testDriver = null;
+  finishTest();
+  
+  yield;
+}
+
+function test() {
+  addTab("data:text/html;charset=utf-8,Web Console test for bug 613642: remember scroll location");
+  browser.addEventListener("load", function tabLoad(aEvent) {
+    browser.removeEventListener(aEvent.type, tabLoad, true);
+    openConsole(null, function(aHud) {
+      hud = aHud;
+      testDriver = testGen();
+      testDriver.next();
+    });
+  }, true);
+}