Fix #2344 - Missing translation for quote header timestamp

app/assets/javascripts/app/controllers/ticket_zoom/article_action/email_reply.coffee

@@ -180,6 +180,10 @@ class EmailReply extends App.Controller
       day: 'numeric'
       year: 'numeric'
     }
+    locale = App.i18n.get() || 'en-US'
+    try
+      new Date(date_string).toLocaleTimeString(locale, options)
+    catch e
       new Date(date_string).toLocaleTimeString('en-US', options)
 
   @emailForward: (ticket, article, ui) ->

test/browser/agent_ticket_email_reply_keep_body_test.rb

@@ -129,4 +129,76 @@ class AgentTicketEmailReplyKeepBodyTest < TestCase
     assert match[1]
     assert Time.zone.parse(match[1])
   end
+
+  # Regression test for issue #2344 - Missing translation for Full-Quote-Text "on xy wrote"
+  def test_full_quote_german_locale
+    @browser = instance = browser_instance
+    login(
+      username: 'master@example.com',
+      password: 'test',
+      url: browser_url,
+    )
+    tasks_close_all()
+
+    ticket_open_by_title(
+      title: 'Welcome to Zammad',
+    )
+    watch_for(
+      css:      '.content.active .js-settingContainer .js-setting .dropdown-icon',
+    )
+
+    # enable email full quote in the ticket zoom config page
+    scroll_to(
+      position: 'botton',
+      css:      '.content.active .js-settingContainer .js-setting .dropdown-icon',
+    )
+    click(css: '.content.active .js-settingContainer .js-setting .dropdown-icon')
+    modal_ready()
+    select(
+      css: '.modal #ui_ticket_zoom_article_email_full_quote select[name="ui_ticket_zoom_article_email_full_quote"]',
+      value: 'yes'
+    )
+    click(
+      css: '.modal #ui_ticket_zoom_article_email_full_quote .btn[type="submit"]',
+    )
+    modal_close()
+    modal_disappear()
+
+    exists(css: '.content.active .ticket-article [data-type="emailReply"]')
+
+    # switch user profile language to German
+    switch_language(
+      data: {
+        language: 'Deutsch'
+      },
+    )
+
+    ticket_open_by_title(
+      title: 'Welcome to Zammad',
+    )
+
+    scroll_to(
+      position: 'botton',
+      css:      '.content.active .ticket-article [data-type="emailReply"]',
+    )
+    click(css: '.content.active .ticket-article [data-type="emailReply"]')
+
+    full_text = @browser.find_element(css: '.content.active .article-new .articleNewEdit-body').text
+
+    match = full_text.match(/\nAm (.*?), schrieb Nicole Braun:/)
+    assert match
+
+    datestamp = match[1]
+    assert datestamp
+    assert Time.zone.parse(datestamp)
+    day_of_week = datestamp.split(',').first
+    assert %w[Montag Dienstag Mittwoch Donnerstag Freitag Samstag Sonntag].include? day_of_week
+
+    # switch user profile language to English again for other tests
+    switch_language(
+      data: {
+        language: 'English (United States)'
+      },
+    )
+  end
 end

test/browser_test_helper.rb

@@ -4440,6 +4440,55 @@ wait untill text in selector disabppears
     scope.find_element(css: "input[value=#{value}]").property('checked')
   end
 
+=begin
+
+  Switch the current logged in user's profile language to a new language
+
+  switch_language(
+    browser: browser2,
+    data: {
+      language: 'Deutsch'
+    },
+  )
+
+  IMPORTANT REMINDER! At the end of tests, the caller must manually set the language back to English again:
+
+  switch_language(
+    browser: browser2,
+    data: {
+      language: 'English (United States)'
+    },
+  )
+
+  Failure to switch back to English will cause large amounts of subsequent tests to fail due to the UI language differences.
+
+=end
+
+  def switch_language(params = {})
+    switch_window_focus(params)
+    log('switch_language', params)
+
+    instance = params[:browser] || @browser
+    data     = params[:data]
+
+    click(browser: instance, css: '#navigation .user-menu .js-avatar')
+
+    click(browser: instance, css: '#navigation .user-menu a[href="#profile"]')
+
+    select(
+      browser: instance,
+      css: '.content.active .searchableSelect-shadow',
+      value: data[:language],
+    )
+
+    click(browser: instance, css: '.content.active .btn--primary')
+
+    watch_for(
+      browser: instance,
+      css: '#notify',
+    )
+  end
+
 =begin
 
   Retrieve a hash of all the avaiable Zammad settings and their current values.