instant converter add test

Author: anatennis

src/main/java/io/tarantool/driver/mappers/converters/object/DefaultInstantToExtensionValueConverter.java

@@ -10,7 +10,7 @@
 /**
  * Default {@link java.time.Instant} to {@link ExtensionValue} converter
  *
- * @author
+ * @author Anastasiia Romanova
  */
 public class DefaultInstantToExtensionValueConverter implements ObjectConverter<Instant, ExtensionValue> {
 

src/main/java/io/tarantool/driver/mappers/converters/value/DefaultExtensionValueToInstantConverter.java

@@ -9,7 +9,7 @@
 /**
  * Default {@link ExtensionValue} to {@link java.time.Instant} converter
  *
- * @author
+ * @author Anastasiia Romanova
  */
 public class DefaultExtensionValueToInstantConverter implements ValueConverter<ExtensionValue, Instant> {
     private static final byte DATETIME_TYPE = 0x04;

src/test/java/io/tarantool/driver/mappers/DefaultMessagePackMapperTest.java

@@ -2,8 +2,8 @@
 
 import io.tarantool.driver.CustomTuple;
 import io.tarantool.driver.api.tuple.DefaultTarantoolTupleFactory;
-import io.tarantool.driver.api.tuple.TarantoolTupleFactory;
 import io.tarantool.driver.api.tuple.TarantoolTuple;
+import io.tarantool.driver.api.tuple.TarantoolTupleFactory;
 import io.tarantool.driver.mappers.converters.ValueConverter;
 import org.junit.jupiter.api.Test;
 import org.msgpack.value.ArrayValue;
@@ -13,6 +13,9 @@
 import org.msgpack.value.ValueType;
 
 import java.math.BigDecimal;
+import java.time.Instant;
+import java.time.LocalDateTime;
+import java.time.ZoneOffset;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
@@ -73,6 +76,10 @@ void getDefaultConverter() throws MessagePackValueMapperException {
         UUID uuid = UUID.fromString("84b56906-aeed-11ea-b3de-0242ac130004");
         assertEquals(uuid, mapper.fromValue(mapper.toValue(uuid)));
 
+        //instant
+        Instant instant = LocalDateTime.parse("2022-10-25T12:03:58").toInstant(ZoneOffset.UTC);
+        assertEquals(instant, mapper.fromValue(mapper.toValue(instant)));
+
         // null
         assertEquals(ValueFactory.newNil(), mapper.toValue(null));
     }