feat: Recognize integer format 'int64' as no-op

Author: thced

src/main/java/com/retailsvc/http/validate/DefaultValidator.java

@@ -85,8 +85,9 @@ private record NumberFormatCheck(DoublePredicate isValid, String message) {}
       Map.of(
           "int32",
           new IntegerFormatCheck(
-              n -> n >= Integer.MIN_VALUE && n <= Integer.MAX_VALUE,
-              "value does not fit in int32"));
+              n -> n >= Integer.MIN_VALUE && n <= Integer.MAX_VALUE, "value does not fit in int32"),
+          "int64",
+          new IntegerFormatCheck(n -> true, "value does not fit in int64"));
 
   private static final Map<String, NumberFormatCheck> NUMBER_FORMAT_CHECKS = Map.of();
 

src/test/java/com/retailsvc/http/validate/StringIntegerNumberTest.java

@@ -242,6 +242,16 @@ void stringFormatUnknownIsIgnored() {
     assertThatCode(() -> v.validate("anything", s, "/v")).doesNotThrowAnyException();
   }
 
+  @Test
+  void integerFormatInt64AcceptsAnyLong() {
+    IntegerSchema s =
+        new IntegerSchema(Set.of(TypeName.INTEGER), null, null, null, null, null, "int64");
+    assertThatCode(() -> v.validate(Long.MAX_VALUE, s, "/v")).doesNotThrowAnyException();
+    assertThatCode(() -> v.validate(Long.MIN_VALUE, s, "/v")).doesNotThrowAnyException();
+    assertThatCode(() -> v.validate(0L, s, "/v")).doesNotThrowAnyException();
+    assertThatCode(() -> v.validate(123L, s, "/v")).doesNotThrowAnyException();
+  }
+
   @Test
   void integerFormatInt32() {
     IntegerSchema s =