add TemporalAccessorConverter

hutool-core/src/test/java/cn/hutool/core/convert/TemporalAccessorConverterTest.java

@@ -0,0 +1,57 @@
+package cn.hutool.core.convert;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.time.Instant;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.time.OffsetDateTime;
+import java.time.OffsetTime;
+import java.time.ZonedDateTime;
+
+public class TemporalAccessorConverterTest {
+
+	@Test
+	public void toInstantTest(){
+		Instant instant = Convert.convert(Instant.class, "2019-02-18");
+		Assert.assertNotNull(instant);
+	}
+
+	@Test
+	public void toLocalDateTimeTest(){
+		LocalDateTime localDateTime = Convert.convert(LocalDateTime.class, "2019-02-18");
+		Assert.assertEquals("2019-02-18T00:00", localDateTime.toString());
+	}
+
+	@Test
+	public void toLocalDateTest(){
+		LocalDate localDate = Convert.convert(LocalDate.class, "2019-02-18");
+		Assert.assertEquals("2019-02-18", localDate.toString());
+	}
+
+	@Test
+	public void toLocalTimeTest(){
+		LocalTime localTime = Convert.convert(LocalTime.class, "2019-02-18");
+		Assert.assertEquals("00:00", localTime.toString());
+	}
+
+	@Test
+	public void toZonedDateTimeTest(){
+		ZonedDateTime zonedDateTime = Convert.convert(ZonedDateTime.class, "2019-02-18");
+		Assert.assertEquals("2019-02-18T00:00+08:00[GMT+08:00]", zonedDateTime.toString());
+	}
+
+	@Test
+	public void toOffsetDateTimeTest(){
+		OffsetDateTime zonedDateTime = Convert.convert(OffsetDateTime.class, "2019-02-18");
+		Assert.assertEquals("2019-02-18T00:00+08:00", zonedDateTime.toString());
+	}
+
+	@Test
+	public void toOffsetTimeTest(){
+		OffsetTime offsetTime = Convert.convert(OffsetTime.class, "2019-02-18");
+		Assert.assertEquals("00:00+08:00", offsetTime.toString());
+	}
+}