Add examples with custom resource bundles

blackbox-test/src/main/java/example/avaje/composable/MyCustomPattern.java

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+package example.avaje.composable;
+
+import io.avaje.validation.constraints.NotBlank;
+import io.avaje.validation.constraints.Valid;
+
+@Valid
+public record MyCustomPattern(
+  @MyKey String key,
+  @NotBlank String value) {
+}

blackbox-test/src/main/java/example/avaje/composable/MyKey.java

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+package example.avaje.composable;
+
+import io.avaje.validation.constraints.Constraint;
+import io.avaje.validation.constraints.Pattern;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import static java.lang.annotation.ElementType.*;
+import static java.lang.annotation.ElementType.TYPE_USE;
+import static java.lang.annotation.RetentionPolicy.SOURCE;
+
+@Pattern(regexp = "[A-Z0-9_]{2,8}")
+@Constraint
+@Retention(SOURCE)
+@Target({METHOD, FIELD, ANNOTATION_TYPE, PARAMETER, TYPE_USE})
+public @interface MyKey {
+
+  String message() default "{example.avaje.MyKey.message}";
+
+  Class<?>[] groups() default {};
+}

blackbox-test/src/main/java/example/avaje/composable/MySerial.java

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+package example.avaje.composable;
+
+import io.avaje.validation.constraints.Constraint;
+import io.avaje.validation.constraints.Length;
+import io.avaje.validation.constraints.Pattern;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import static java.lang.annotation.ElementType.*;
+import static java.lang.annotation.RetentionPolicy.SOURCE;
+
+@Pattern(regexp = "[A-Z]+")
+@Length(max = 5)
+@Constraint
+@Retention(SOURCE)
+@Target({METHOD, FIELD, ANNOTATION_TYPE, PARAMETER, TYPE_USE})
+public @interface MySerial {
+
+  String message() default "{example.avaje.MySerial.message}";
+
+  Class<?>[] groups() default {};
+}

blackbox-test/src/main/java/example/avaje/composable/MySerialExample.java

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+package example.avaje.composable;
+
+import io.avaje.validation.constraints.NotBlank;
+import io.avaje.validation.constraints.Valid;
+
+@Valid
+public record MySerialExample(
+  @MySerial String key,
+  @NotBlank String value) {
+}

blackbox-test/src/main/resources/example/avaje/CustomMessages.properties

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+example.avaje.MyKey.message=Invalid MyKey
+example.avaje.MySerial.message=Invalid my serial

blackbox-test/src/main/resources/example/avaje/CustomMessages_de.properties

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+example.avaje.MyKey.message=darf nicht MyKey

blackbox-test/src/main/resources/example/avaje/CustomMessages_en.properties

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+# intentionally blank

blackbox-test/src/test/java/example/avaje/composable/MyCustomPatternTest.java

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+package example.avaje.composable;
+
+import io.avaje.validation.ConstraintViolation;
+import io.avaje.validation.ConstraintViolationException;
+import io.avaje.validation.Validator;
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.util.Locale;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.fail;
+
+class MyCustomPatternTest {
+
+  final Validator validator = Validator.builder()
+    .addResourceBundles("example.avaje.CustomMessages")
+    .addLocales(Locale.GERMAN)
+    .build();
+
+  @Test
+  void valid() {
+    validator.validate(new MyCustomPattern("SDFS", "Hi"));
+    validator.validate(new MyCustomPattern("12", "Hi"));
+    validator.validate(new MyCustomPattern("12345678", "Hi"));
+    validator.validate(new MyCustomPattern("A234567Z", "Hi"));
+    validator.validate(new MyCustomPattern("A2_456_Z", "Hi"));
+  }
+
+  @Test
+  void notValid() {
+    var violation = one(new MyCustomPattern("SD*FS", "Hi"));
+    assertThat(violation.message()).isEqualTo("Invalid MyKey");
+
+    assertThat(one(new MyCustomPattern("S", "Hi")).message()).isEqualTo("Invalid MyKey");
+    assertThat(one(new MyCustomPattern("", "Hi")).message()).isEqualTo("Invalid MyKey");
+    assertThat(one(new MyCustomPattern("123456789", "Hi")).message()).isEqualTo("Invalid MyKey");
+  }
+
+  @Test
+  void notValid_DE() {
+    var violation = one(new MyCustomPattern("SD*FS", "Hi"), Locale.GERMAN);
+    assertThat(violation.message()).isEqualTo("darf nicht MyKey");
+  }
+
+  ConstraintViolation one(Object any) {
+    return one(any, Locale.ENGLISH);
+  }
+
+  ConstraintViolation one(Object any, Locale locale) {
+    try {
+      validator.validate(any, locale);
+      fail("not expected");
+      return null;
+    } catch (ConstraintViolationException e) {
+      var violations = new ArrayList<>(e.violations());
+      assertThat(violations).hasSize(1);
+      return violations.get(0);
+    }
+  }
+}

blackbox-test/src/test/java/example/avaje/composable/MySerialTest.java

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+package example.avaje.composable;
+
+import io.avaje.validation.ConstraintViolation;
+import io.avaje.validation.ConstraintViolationException;
+import io.avaje.validation.Validator;
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.util.Locale;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.fail;
+
+class MySerialTest {
+
+  final Validator validator = Validator.builder()
+    .addResourceBundles("example.avaje.CustomMessages")
+    .addLocales(Locale.GERMAN)
+    .build();
+
+  @Test
+  void valid() {
+    validator.validate(new MySerialExample("A", "Hi"));
+    validator.validate(new MySerialExample("ABCDE", "Hi"));
+  }
+
+  @Test
+  void notValid() {
+    var violation = one(new MySerialExample("*", "Hi"));
+    assertThat(violation.message()).isEqualTo("Invalid my serial");
+
+    assertThat(one(new MySerialExample("ABCDEF", "Hi")).message()).isEqualTo("Invalid my serial");
+    assertThat(one(new MySerialExample("", "Hi")).message()).isEqualTo("Invalid my serial");
+    assertThat(one(new MySerialExample("123456789", "Hi")).message()).isEqualTo("Invalid my serial");
+  }
+
+  @Test
+  void notValid_DE() {
+    var violation = one(new MySerialExample("*", "Hi"), Locale.GERMAN);
+    assertThat(violation.message()).isEqualTo("Invalid my serial"); // not translated for DE
+  }
+
+  ConstraintViolation one(Object any) {
+    return one(any, Locale.ENGLISH);
+  }
+
+  ConstraintViolation one(Object any, Locale locale) {
+    try {
+      validator.validate(any, locale);
+      fail("not expected");
+      return null;
+    } catch (ConstraintViolationException e) {
+      var violations = new ArrayList<>(e.violations());
+      assertThat(violations).hasSize(1);
+      return violations.get(0);
+    }
+  }
+}