1 files changed, 51 insertions, 0 deletions
diff --git a/devtools/client/debugger/test/mochitest/browser_dbg_pretty-print-12.js b/devtools/client/debugger/test/mochitest/browser_dbg_pretty-print-12.js
new file mode 100644
index 000000000..57ce54fc5
--- /dev/null
+++ b/devtools/client/debugger/test/mochitest/browser_dbg_pretty-print-12.js
@@ -0,0 +1,51 @@
+/* -*- 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/ */
+
+/**
+ * Make sure that we don't leave the pretty print button checked when we fail to
+ * pretty print a source (because it isn't a JS file, for example).
+ */
+
+const TAB_URL = EXAMPLE_URL + "doc_blackboxing.html";
+const SCRIPT_URL = EXAMPLE_URL + "code_blackboxing_blackboxme.js";
+
+function test() {
+  let options = {
+    source: SCRIPT_URL,
+    line: 1
+  };
+  initDebugger(TAB_URL, options).then(([aTab,, aPanel]) => {
+    const gTab = aTab;
+    const gPanel = aPanel;
+    const gDebugger = gPanel.panelWin;
+    const gEditor = gDebugger.DebuggerView.editor;
+    const gSources = gDebugger.DebuggerView.Sources;
+    const queries = gDebugger.require("./content/queries");
+    const constants = gDebugger.require("./content/constants");
+    const actions = bindActionCreators(gPanel);
+    const getState = gDebugger.DebuggerController.getState;
+
+    Task.spawn(function* () {
+      const source = getSourceForm(gSources, TAB_URL);
+      let shown = ensureSourceIs(gPanel, TAB_URL, true);
+      actions.selectSource(source);
+      yield shown;
+
+      try {
+        yield actions.togglePrettyPrint(source);
+        ok(false, "An error occurred while pretty-printing");
+      }
+      catch (err) {
+        is(err.message, "Can't prettify non-javascript files.",
+           "The promise was correctly rejected with a meaningful message.");
+      }
+
+      is(gDebugger.document.getElementById("pretty-print").checked, false,
+         "The button shouldn't be checked after trying to pretty print a non-js file.");
+
+      closeDebuggerAndFinish(gPanel);
+    });
+  });
+}