Fix AbstractDateField to correctly show week day names (#10188)

Fixes #9200

2 files changed, 42 insertions, 2 deletions

diff --git a/uitest/src/main/java/com/vaadin/tests/components/datefield/AbstractDateFieldTest.java b/uitest/src/main/java/com/vaadin/tests/components/datefield/AbstractDateFieldTest.java
index 8ae2d48afd..9d7d75efb8 100644
--- a/uitest/src/main/java/com/vaadin/tests/components/datefield/AbstractDateFieldTest.java
+++ b/uitest/src/main/java/com/vaadin/tests/components/datefield/AbstractDateFieldTest.java
@@ -31,7 +31,6 @@ public abstract class AbstractDateFieldTest<T extends AbstractLocalDateField>
                 weekNumberCommand);
         createDateFormatSelectAction(CATEGORY_FEATURES);
         createSetValueAction(CATEGORY_FEATURES);
-
     }
 
     private void createSetValueAction(String category) {
@@ -68,7 +67,6 @@ public abstract class AbstractDateFieldTest<T extends AbstractLocalDateField>
 
         createSelectAction("Date format", category, options, "-",
                 dateFormatCommand);
-
     }
 
     private String getDatePattern(Locale locale, int dateStyle) {
diff --git a/uitest/src/main/java/com/vaadin/tests/components/datefield/DateFieldWeekShortName.java b/uitest/src/main/java/com/vaadin/tests/components/datefield/DateFieldWeekShortName.java
new file mode 100644
index 0000000000..a2148d4378
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/components/datefield/DateFieldWeekShortName.java
@@ -0,0 +1,42 @@
+package com.vaadin.tests.components.datefield;
+
+import java.time.LocalDate;
+import java.util.Locale;
+
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.ui.DateField;
+
+public class DateFieldWeekShortName extends AbstractTestUI {
+
+    @Override
+    protected String getTestDescription() {
+        return "DateField to correctly show week name for locales with different first week day";
+    }
+
+    @Override
+    protected Integer getTicketNumber() {
+        return 9200;
+    }
+
+    @Override
+    protected void setup(VaadinRequest request) {
+        LocalDate localDate = LocalDate.of(2017, 10, 20);
+
+        DateField ar = new DateField();
+        ar.setValue(localDate);
+        ar.setLocale(new Locale("ar"));
+        addComponent(ar);
+
+        DateField de = new DateField();
+        de.setLocale(Locale.GERMAN);
+        de.setValue(localDate);
+        addComponent(de);
+
+        DateField en = new DateField();
+        en.setLocale(Locale.ENGLISH);
+        en.setValue(localDate);
+        addComponent(en);
+    }
+
+}