1 files changed, 52 insertions, 0 deletions
diff --git a/toolkit/content/tests/browser/datetime/browser_datetime_showPicker.js b/toolkit/content/tests/browser/datetime/browser_datetime_showPicker.js
new file mode 100644
index 0000000000..817c8958cd
--- /dev/null
+++ b/toolkit/content/tests/browser/datetime/browser_datetime_showPicker.js
@@ -0,0 +1,52 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test that date picker opens with showPicker.
+ */
+add_task(async function test_datepicker_showPicker() {
+  const date = new Date();
+
+  await helper.openPicker(
+    "data:text/html, <input type='date'>",
+    false,
+    "showPicker"
+  );
+
+  if (date.getMonth() === new Date().getMonth()) {
+    Assert.equal(
+      helper.getElement(MONTH_YEAR).textContent,
+      DATE_FORMAT_LOCAL(date),
+      "Date picker opens when a showPicker method is called"
+    );
+  } else {
+    Assert.ok(
+      true,
+      "Skipping datepicker today test if month changes when opening picker."
+    );
+  }
+
+  await helper.tearDown();
+});
+
+/**
+ * Test that date picker opens with showPicker and the explicit value.
+ */
+add_task(async function test_datepicker_showPicker_value() {
+  await helper.openPicker(
+    "data:text/html, <input type='date' value='2012-10-15'>",
+    false,
+    "showPicker"
+  );
+
+  Assert.equal(
+    helper.getElement(MONTH_YEAR).textContent,
+    DATE_FORMAT_LOCAL(new Date("2012-10-12")),
+    "Date picker opens when a showPicker method is called"
+  );
+
+  await helper.tearDown();
+});