Merge pull request #8051 from yavuztas/pr-BAEL-3379

PR-BAEL-3379

javaxval/src/main/java/org/baeldung/javaxval/messageinterpolator/Person.java

@@ -0,0 +1,42 @@
+package org.baeldung.javaxval.messageinterpolator;
+
+import javax.validation.constraints.Email;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.Size;
+
+public class Person {
+
+    @Size(min = 10, max = 100, message = "Name should be between {min} and {max} characters")
+    private String name;
+
+    @Min(value = 18, message = "Age should not be less than {value}")
+    private int age;
+    
+    @Email(message = "Email address should be in a correct format: ${validatedValue}")
+    private String email;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+    
+    public String getEmail() {
+        return email;
+    }
+    
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+}

javaxval/src/test/java/org/baeldung/javaxval/messageinterpolator/ParameterMessageInterpolaterIntegrationTest.java

@@ -0,0 +1,70 @@
+package org.baeldung.javaxval.messageinterpolator;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.Set;
+
+import javax.validation.ConstraintViolation;
+import javax.validation.Validation;
+import javax.validation.Validator;
+import javax.validation.ValidatorFactory;
+
+import org.hibernate.validator.messageinterpolation.ParameterMessageInterpolator;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class ParameterMessageInterpolaterIntegrationTest {
+
+    private static Validator validator;
+
+    @BeforeClass
+    public static void beforeClass() {
+        ValidatorFactory validatorFactory = Validation.byDefaultProvider()
+          .configure()
+          .messageInterpolator(new ParameterMessageInterpolator())
+          .buildValidatorFactory();
+
+        validator = validatorFactory.getValidator();
+    }
+
+    @Test
+    public void givenNameLengthLessThanMin_whenValidate_thenValidationFails() {
+        Person person = new Person();
+        person.setName("John Doe");
+        person.setAge(18);
+
+        Set<ConstraintViolation<Person>> violations = validator.validate(person);
+        assertEquals(1, violations.size());
+
+        ConstraintViolation<Person> violation = violations.iterator().next();
+        assertEquals("Name should be between 10 and 100 characters", violation.getMessage());
+    }
+
+    @Test
+    public void givenAgeIsLessThanMin_whenValidate_thenValidationFails() {
+        Person person = new Person();
+        person.setName("John Stephaner Doe");
+        person.setAge(16);
+
+        Set<ConstraintViolation<Person>> violations = validator.validate(person);
+        assertEquals(1, violations.size());
+
+        ConstraintViolation<Person> violation = violations.iterator().next();
+        assertEquals("Age should not be less than 18", violation.getMessage());
+    }
+    
+    @Test
+    public void givenEmailIsMalformed_whenValidate_thenValidationFails() {
+        Person person = new Person();
+        person.setName("John Stephaner Doe");
+        person.setAge(18);
+        person.setEmail("johndoe.dev");
+        
+        Set<ConstraintViolation<Person>> violations = validator.validate(person);
+        assertEquals(1, violations.size());
+        
+        ConstraintViolation<Person> violation = violations.iterator().next();
+        assertEquals("Email address should be in a correct format: ${validatedValue}", violation.getMessage());
+    }
+
+}