optimized codes and fix negative month bug @ Lunar.getXiu()

src/test/java/test/HalfYearTest.java

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+package test;
+
+import com.nlf.calendar.SolarHalfYear;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * 半年测试
+ *
+ * @author 6tail
+ */
+public class HalfYearTest {
+
+  @Test
+  public void test(){
+    SolarHalfYear halfYear = new SolarHalfYear(2019,5);
+    Assert.assertEquals("2019.1",halfYear.toString());
+    Assert.assertEquals("2019年上半年",halfYear.toFullString());
+
+    Assert.assertEquals("2019.2",halfYear.next(1).toString());
+    Assert.assertEquals("2019年下半年",halfYear.next(1).toFullString());
+  }
+
+}

src/test/java/test/LunarTest.java

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+package test;
+
+import com.nlf.calendar.Lunar;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * 农历测试
+ *
+ * @author 6tail
+ */
+public class LunarTest {
+
+  @Test
+  public void test(){
+    Lunar date = new Lunar(2019,3,27);
+    Assert.assertEquals("己亥年叁月廿七",date.toString());
+    Assert.assertEquals("己亥年叁月廿七 猪年 西方白虎 娄金狗",date.toFullString());
+    Assert.assertEquals("2019-05-01",date.getSolar().toString());
+    Assert.assertEquals("2019-05-01 星期三 (劳动节) 金牛座",date.getSolar().toFullString());
+  }
+
+}

src/test/java/test/MonthTest.java

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+package test;
+
+import com.nlf.calendar.SolarMonth;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * 月份测试
+ *
+ * @author 6tail
+ */
+public class MonthTest {
+
+  @Test
+  public void test(){
+    SolarMonth month = new SolarMonth(2019,5);
+    Assert.assertEquals("2019-5",month.toString());
+    Assert.assertEquals("2019年5月",month.toFullString());
+
+    Assert.assertEquals("2019-6",month.next(1).toString());
+    Assert.assertEquals("2019年6月",month.next(1).toFullString());
+  }
+
+}

src/test/java/test/SeasonTest.java

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+package test;
+
+import com.nlf.calendar.SolarSeason;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * 季度测试
+ *
+ * @author 6tail
+ */
+public class SeasonTest {
+
+  @Test
+  public void test(){
+    SolarSeason season = new SolarSeason(2019,5);
+    Assert.assertEquals("2019.2",season.toString());
+    Assert.assertEquals("2019年2季度",season.toFullString());
+
+    Assert.assertEquals("2019.3",season.next(1).toString());
+    Assert.assertEquals("2019年3季度",season.next(1).toFullString());
+  }
+
+}

src/test/java/test/SolarTest.java

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+package test;
+
+import com.nlf.calendar.Solar;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * 阳历测试
+ *
+ * @author 6tail
+ */
+public class SolarTest {
+
+  @Test
+  public void test(){
+    Solar date = new Solar(2019,5,1);
+    Assert.assertEquals("2019-05-01",date.toString());
+    Assert.assertEquals("2019-05-01 星期三 (劳动节) 金牛座",date.toFullString());
+    Assert.assertEquals("己亥年叁月廿七",date.getLunar().toString());
+    Assert.assertEquals("己亥年叁月廿七 猪年 西方白虎 娄金狗",date.getLunar().toFullString());
+  }
+
+}

src/test/java/test/WeekTest.java

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+package test;
+
+import com.nlf.calendar.SolarWeek;
+import com.nlf.calendar.util.SolarUtil;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * 周测试
+ *
+ * @author 6tail
+ */
+public class WeekTest {
+
+  @Test
+  public void testFromMonday(){
+    //一周的开始从星期一开始计
+    int start = 1;
+    SolarWeek week = new SolarWeek(2019,5,1,start);
+    Assert.assertEquals("2019.5.1",week.toString());
+    Assert.assertEquals("2019年5月第1周",week.toFullString());
+    //当月共几周
+    Assert.assertEquals(5,SolarUtil.getWeeksOfMonth(week.getYear(),week.getMonth(),start));
+    //当周第一天
+    Assert.assertEquals("2019-04-29",week.getFirstDay().toString());
+    //当周第一天（本月）
+    Assert.assertEquals("2019-05-01",week.getFirstDayInMonth().toString());
+  }
+
+  @Test
+  public void testFromSunday(){
+    //一周的开始从星期日开始计
+    int start = 0;
+    SolarWeek week = new SolarWeek(2019,5,1,start);
+    Assert.assertEquals("2019.5.1",week.toString());
+    Assert.assertEquals("2019年5月第1周",week.toFullString());
+    //当月共几周
+    Assert.assertEquals(5,SolarUtil.getWeeksOfMonth(week.getYear(),week.getMonth(),start));
+    //当周第一天
+    Assert.assertEquals("2019-04-28",week.getFirstDay().toString());
+    //当周第一天（本月）
+    Assert.assertEquals("2019-05-01",week.getFirstDayInMonth().toString());
+  }
+}

src/test/java/test/YearTest.java

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+package test;
+
+import com.nlf.calendar.SolarYear;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * 年份测试
+ *
+ * @author 6tail
+ */
+public class YearTest {
+
+  @Test
+  public void test(){
+    SolarYear year = new SolarYear(2019);
+    Assert.assertEquals("2019",year.toString());
+    Assert.assertEquals("2019年",year.toFullString());
+
+    Assert.assertEquals("2020",year.next(1).toString());
+    Assert.assertEquals("2020年",year.next(1).toFullString());
+  }
+
+}