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package com.vaadin.data;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.util.Locale;
import java.util.Objects;
import org.junit.Test;
import com.vaadin.data.validator.ValidatorTestBase;
/**
* @author Vaadin Ltd
*
*/
public class ValidatorTest extends ValidatorTestBase {
@Test
public void alwaysPass() {
Validator<String> alwaysPass = Validator.alwaysPass();
ValidationResult result = alwaysPass.apply("foo", new ValueContext());
assertFalse(result.isError());
}
@Test
public void from() {
Validator<String> validator = Validator.from(Objects::nonNull,
"Cannot be null");
ValidationResult result = validator.apply(null, new ValueContext());
assertTrue(result.isError());
result = validator.apply("", new ValueContext());
assertFalse(result.isError());
}
@Test
public void withValidator_customErrorMessageProvider() {
String finnishError = "Käyttäjän tulee olla täysi-ikäinen";
String englishError = "The user must be an adult";
String notTranslatableError = "NOT TRANSLATABLE";
Validator<Integer> ageValidator = Validator.from(age -> age >= 18,
ctx -> {
Locale locale = ctx.getLocale().orElse(Locale.ENGLISH);
if (locale.getLanguage().equals("fi")) {
return finnishError;
}
if (locale.getLanguage().equals("en")) {
return englishError;
}
return notTranslatableError;
});
setLocale(Locale.ENGLISH);
assertFails(17, englishError, ageValidator);
setLocale(new Locale("fi", "FI"));
assertFails(17, finnishError, ageValidator);
setLocale(Locale.GERMAN);
assertFails(17, notTranslatableError, ageValidator);
}
}
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