diff --git a/frontend_tests/casper_tests/06-settings.js b/frontend_tests/casper_tests/06-settings.js
index 4fe7988e28..86d824b4e4 100644
--- a/frontend_tests/casper_tests/06-settings.js
+++ b/frontend_tests/casper_tests/06-settings.js
@@ -5,7 +5,7 @@ common.start_and_log_in();
 
 var form_sel = 'form[action^="/json/settings/change"]';
 
-casper.then(function () {
+casper.waitForSelector('a[href^="#settings"]', function () {
     casper.test.info('Settings page');
     casper.click('a[href^="#settings"]');
 });
@@ -122,6 +122,49 @@ casper.waitForSelector('#create_alert_word_form', function () {
     casper.test.assertDoesntExist('div.alert-word-information-box');
 });
 
+casper.then(function change_default_language() {
+    casper.test.info('Changing the default language');
+    casper.evaluate(function () {
+        $('#default_language').val('zh_CN').change();
+    });
+});
+
+casper.waitUntilVisible('#display-settings-status', function () {
+    casper.test.assertSelectorHasText('#display-settings-status', '简体中文 is now the default language');
+    casper.test.info("Reloading page");
+    casper.reload(function () {
+        casper.test.info("Reloaded");
+    });
+});
+
+casper.waitForSelector("#settings-change-box", function () {
+    casper.test.info("Checking if we are on Chinese page.");
+    casper.test.assertEvalEquals(function () {
+        return document.documentElement.lang;
+    }, 'zh-cn');
+});
+
+casper.thenOpen('http://localhost:9981/de/#settings', function () {
+    casper.test.info("German page opened.");
+});
+
+casper.waitForSelector("#settings-change-box");
+
+casper.then(function check_url_preference() {
+    casper.test.info("Checking i18n url language precedence.");
+    casper.test.assertEvalEquals(function () {
+        return document.documentElement.lang;
+    }, 'de');
+    casper.test.info("Changing language back to English.");
+    casper.evaluate(function () {
+        $('#default_language').val('en').change();
+    });
+});
+
+casper.waitUntilVisible('#display-settings-status', function () {
+    casper.test.assertSelectorHasText('#display-settings-status', 'English is now the default language');
+});
+
 // TODO: test the "Declare Zulip Bankruptcy option"
 
 common.then_log_out();