diff -r 000000000000 -r 6474c204b198 browser/devtools/debugger/test/browser_dbg_search-basic-04.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/debugger/test/browser_dbg_search-basic-04.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,132 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Tests that the selection is dropped for line and token searches, after
+ * pressing backspace enough times.
+ */
+
+const TAB_URL = EXAMPLE_URL + "doc_script-switching-01.html";
+
+let gTab, gDebuggee, gPanel, gDebugger;
+let gEditor, gSources, gSearchBox;
+
+function test() {
+  initDebugger(TAB_URL).then(([aTab, aDebuggee, aPanel]) => {
+    gTab = aTab;
+    gDebuggee = aDebuggee;
+    gPanel = aPanel;
+    gDebugger = gPanel.panelWin;
+    gEditor = gDebugger.DebuggerView.editor;
+    gSources = gDebugger.DebuggerView.Sources;
+    gSearchBox = gDebugger.DebuggerView.Filtering._searchbox;
+
+    waitForSourceShown(gPanel, "-01.js")
+      .then(testLineSearch)
+      .then(testTokenSearch)
+      .then(() => closeDebuggerAndFinish(gPanel))
+      .then(null, aError => {
+        ok(false, "Got an error: " + aError.message + "\n" + aError.stack);
+      });
+  });
+}
+
+function testLineSearch() {
+  setText(gSearchBox, ":42");
+  ok(isCaretPos(gPanel, 7),
+    "The editor caret position appears to be correct (1.1).");
+  ok(isEditorSel(gPanel, [160, 160]),
+    "The editor selection appears to be correct (1.1).");
+  is(gEditor.getSelection(), "",
+    "The editor selected text appears to be correct (1.1).");
+
+  backspaceText(gSearchBox, 1);
+  ok(isCaretPos(gPanel, 4),
+    "The editor caret position appears to be correct (1.2).");
+  ok(isEditorSel(gPanel, [110, 110]),
+    "The editor selection appears to be correct (1.2).");
+  is(gEditor.getSelection(), "",
+    "The editor selected text appears to be correct (1.2).");
+
+  backspaceText(gSearchBox, 1);
+  ok(isCaretPos(gPanel, 4),
+    "The editor caret position appears to be correct (1.3).");
+  ok(isEditorSel(gPanel, [110, 110]),
+    "The editor selection appears to be correct (1.3).");
+  is(gEditor.getSelection(), "",
+    "The editor selected text appears to be correct (1.3).");
+
+  setText(gSearchBox, ":4");
+  ok(isCaretPos(gPanel, 4),
+    "The editor caret position appears to be correct (1.4).");
+  ok(isEditorSel(gPanel, [110, 110]),
+    "The editor selection appears to be correct (1.4).");
+  is(gEditor.getSelection(), "",
+    "The editor selected text appears to be correct (1.4).");
+
+  gSearchBox.select();
+  backspaceText(gSearchBox, 1);
+  ok(isCaretPos(gPanel, 4),
+    "The editor caret position appears to be correct (1.5).");
+  ok(isEditorSel(gPanel, [110, 110]),
+    "The editor selection appears to be correct (1.5).");
+  is(gEditor.getSelection(), "",
+    "The editor selected text appears to be correct (1.5).");
+  is(gSearchBox.value, "",
+    "The searchbox should have been cleared.");
+}
+
+function testTokenSearch() {
+  setText(gSearchBox, "#;\"");
+  ok(isCaretPos(gPanel, 5, 23),
+    "The editor caret position appears to be correct (2.1).");
+  ok(isEditorSel(gPanel, [153, 155]),
+    "The editor selection appears to be correct (2.1).");
+  is(gEditor.getSelection(), ";\"",
+    "The editor selected text appears to be correct (2.1).");
+
+  backspaceText(gSearchBox, 1);
+  ok(isCaretPos(gPanel, 5, 22),
+    "The editor caret position appears to be correct (2.2).");
+  ok(isEditorSel(gPanel, [153, 154]),
+    "The editor selection appears to be correct (2.2).");
+  is(gEditor.getSelection(), ";",
+    "The editor selected text appears to be correct (2.2).");
+
+  backspaceText(gSearchBox, 1);
+  ok(isCaretPos(gPanel, 5, 22),
+    "The editor caret position appears to be correct (2.3).");
+  ok(isEditorSel(gPanel, [154, 154]),
+    "The editor selection appears to be correct (2.3).");
+  is(gEditor.getSelection(), "",
+    "The editor selected text appears to be correct (2.3).");
+
+  setText(gSearchBox, "#;");
+  ok(isCaretPos(gPanel, 5, 22),
+    "The editor caret position appears to be correct (2.4).");
+  ok(isEditorSel(gPanel, [153, 154]),
+    "The editor selection appears to be correct (2.4).");
+  is(gEditor.getSelection(), ";",
+    "The editor selected text appears to be correct (2.4).");
+
+  gSearchBox.select();
+  backspaceText(gSearchBox, 1);
+  ok(isCaretPos(gPanel, 5, 22),
+    "The editor caret position appears to be correct (2.5).");
+  ok(isEditorSel(gPanel, [154, 154]),
+    "The editor selection appears to be correct (2.5).");
+  is(gEditor.getSelection(), "",
+    "The editor selected text appears to be correct (2.5).");
+  is(gSearchBox.value, "",
+    "The searchbox should have been cleared.");
+}
+
+registerCleanupFunction(function() {
+  gTab = null;
+  gDebuggee = null;
+  gPanel = null;
+  gDebugger = null;
+  gEditor = null;
+  gSources = null;
+  gSearchBox = null;
+});