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realDuYuanChaorealDuYuanChao
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time operations (#177)
* date operation * time utils * junit test
1 parent eef7b46 commit 82c9ff1

20 files changed

+239
-9
lines changed

‎src/main/java/com/examplehub/basics/MathExample.java renamed to ‎src/main/java/com/examplehub/basics/math/MathExample.java

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package com.examplehub.basics;
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package com.examplehub.basics.math;
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public class MathExample {
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public static void main(String[] args) {

‎src/main/java/com/examplehub/basics/system/FileSeparatorTest.java

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package com.examplehub.basics.system;
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public class FileSeparatorTest {
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}

‎src/main/java/com/examplehub/basics/time/CalendarExample.java

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package com.examplehub.basics.time;
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public class CalendarExample {
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}

‎src/main/java/com/examplehub/basics/time/DateExample.java

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package com.examplehub.basics.time;
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public class DateExample {
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}

‎src/main/java/com/examplehub/basics/time/GetTime.java

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package com.examplehub.basics.time;
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public class GetTime {
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}

‎src/main/java/com/examplehub/basics/time/InstantExample.java

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package com.examplehub.basics.time;
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public class InstantExample {
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}

‎src/main/java/com/examplehub/basics/time/LocalDateTimeExample.java

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package com.examplehub.basics.time;
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public class LocalDateTimeExample {
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}

‎src/main/java/com/examplehub/utils/StringUtils.java

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@@ -16,4 +16,14 @@ public static String toString(byte[] bytes, int offset, int len) {
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}
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return builder.toString();
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}
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public static String capitalize(String origin) {
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if (origin == null) {
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throw new NullPointerException();
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}
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if (origin.length() == 0) {
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return "";
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}
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return Character.toUpperCase(origin.charAt(0)) + origin.substring(1).toLowerCase();
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}
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}

‎src/test/java/com/examplehub/basics/file/CreateFolderTest.java

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import static org.junit.jupiter.api.Assertions.*;
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import org.junit.jupiter.api.Disabled;
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import org.junit.jupiter.api.Test;
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class CreateFolderTest {
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@Disabled
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@Test
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void test() {
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String path = "example_folder";

‎src/test/java/com/examplehub/basics/floats/FloatOperationTest.java

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@@ -9,6 +9,7 @@ class FloatOperationTest {
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void testCompare() {
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assertEquals(0.1, 1.0 / 10);
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assertTrue(0.1 > 1 - 9.0 / 10);
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assertEquals(0.1, 1 - 9 / 10.0, 0.00000001);
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}
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@Test

‎src/test/java/com/examplehub/basics/ints/IntOperationTest.java

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import static org.junit.jupiter.api.Assertions.*;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.function.Executable;
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class IntOperationTest {
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@Test
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assertEquals(5, 10 / 2);
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assertEquals(2, 7 / 3);
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assertEquals(164, 12345 / 75);
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assertThrows(ArithmeticException.class, () -> {
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int division = 10 / 0;
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});
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}
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@Test

‎src/test/java/com/examplehub/basics/system/FileSeparatorTestTest.java

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package com.examplehub.basics.system;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.condition.EnabledOnOs;
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import org.junit.jupiter.api.condition.OS;
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import java.io.File;
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import static org.junit.jupiter.api.Assertions.*;
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class FileSeparatorTestTest {
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@Test
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@EnabledOnOs({OS.LINUX, OS.MAC, OS.MAC})
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void testOnUnixLike() {
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assertEquals("/", File.separator);
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}
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@Test
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@EnabledOnOs(OS.WINDOWS)
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void testOnWindows() {
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assertEquals("\\", File.separator);
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}
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}

‎src/test/java/com/examplehub/basics/time/CalendarExampleTest.java

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package com.examplehub.basics.time;
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import org.junit.jupiter.api.Test;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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class CalendarExampleTest {
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@Test
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void test() {
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Calendar calendar = Calendar.getInstance();
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System.out.println("year: " + calendar.get(Calendar.YEAR));
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System.out.println("month: " + calendar.get(Calendar.MONTH) + 1);
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System.out.println("day of month: " + calendar.get(Calendar.DAY_OF_MONTH));
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System.out.println("day of week: " + calendar.get(Calendar.DAY_OF_WEEK));
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System.out.println("day of year: " + calendar.get(Calendar.DAY_OF_YEAR));
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System.out.println("hour of day: " + calendar.get(Calendar.HOUR));
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System.out.println("hour of day: " + calendar.get(Calendar.HOUR_OF_DAY));
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System.out.println("minute: " + calendar.get(Calendar.MINUTE));
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System.out.println("second: " + calendar.get(Calendar.SECOND));
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System.out.println("million seconds: " + calendar.get(Calendar.MILLISECOND));
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}
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@Test
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void testSetCustomTime() {
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Calendar calendar = Calendar.getInstance();
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calendar.clear();
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calendar.set(Calendar.YEAR, 2088);
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calendar.set(Calendar.MONTH, 8);
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calendar.set(Calendar.DATE, 25);
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calendar.set(Calendar.HOUR_OF_DAY, 16);
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calendar.set(Calendar.MINUTE, 33);
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calendar.set(Calendar.SECOND, 59);
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System.out.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(calendar.getTime()));
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}
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}

‎src/test/java/com/examplehub/basics/time/DateExampleTest.java

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package com.examplehub.basics.time;
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import org.junit.jupiter.api.Test;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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class DateExampleTest {
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@Test
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void test() {
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Date date = new Date();
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System.out.println(date.getYear() + 1900);
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System.out.println(date.getMonth() + 1);
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System.out.println(date.getDate());
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System.out.println(date);
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System.out.println(date.toGMTString());
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System.out.println(date.toLocaleString());
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}
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@Test
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void testSimpleDateForMate() {
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SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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System.out.println(format.format(new Date()));
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}
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}

‎src/test/java/com/examplehub/basics/time/GetTimeTest.java

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package com.examplehub.basics.time;
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import org.junit.jupiter.api.Test;
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class GetTimeTest {
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@Test
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void test() {
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System.out.println(System.currentTimeMillis());
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}
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}

‎src/test/java/com/examplehub/basics/time/InstantExampleTest.java

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package com.examplehub.basics.time;
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import org.junit.jupiter.api.Test;
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import java.time.Instant;
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import static org.junit.jupiter.api.Assertions.*;
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class InstantExampleTest {
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@Test
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void test() {
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Instant now = Instant.now();
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System.out.println(now);
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System.out.println(now.toEpochMilli());
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System.out.println(now.getEpochSecond());
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}
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}

‎src/test/java/com/examplehub/basics/time/LocalDateTimeExampleTest.java

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package com.examplehub.basics.time;
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import org.junit.jupiter.api.Test;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.LocalTime;
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class LocalDateTimeExampleTest {
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@Test
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void test() {
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LocalDate localDate = LocalDate.now();
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LocalTime localTime = LocalTime.now();
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LocalDateTime localDateTime = LocalDateTime.now();
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System.out.println("localDate: " + localDate);
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System.out.println("localTime: " + localTime);
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System.out.println("localDateTime: " + localDateTime);
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}
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@Test
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void test2() {
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LocalDateTime localDateTime = LocalDateTime.now();
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LocalDate localDate = localDateTime.toLocalDate();
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LocalTime localTime = localDateTime.toLocalTime();
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System.out.println("localDate: " + localDate);
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System.out.println("localTime: " + localTime);
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System.out.println("localDateTime: " + localDateTime);
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}
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@Test
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void test3() {
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LocalDate d2 = LocalDate.of(2019, 11, 30);
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LocalTime t2 = LocalTime.of(15, 16, 17);
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LocalDateTime dt2 = LocalDateTime.of(2019, 11, 30, 15, 16, 17);
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LocalDateTime dt3 = LocalDateTime.of(d2, t2);
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System.out.println(d2);
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System.out.println(t2);
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System.out.println(dt2);
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System.out.println(dt3);
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}
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}

‎src/test/java/com/examplehub/basics/utils/MathUtilsExampleTest.java

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import static org.junit.jupiter.api.Assertions.*;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.ArgumentsSource;
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import org.junit.jupiter.params.provider.ValueSource;
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class MathUtilsExampleTest {
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@Test
9-
void testAbs() {
10-
assertEquals(100, Math.abs(-100));
11-
assertEquals(100, Math.abs(100));
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assertEquals(7.8, Math.abs(-7.8));
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@ParameterizedTest
13+
@ValueSource(ints = {0, 1, 10, 99, 1000, 9999999})
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void testAbs(int num) {
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assertEquals(num, Math.abs(num));
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}
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@ParameterizedTest
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@ValueSource(ints = {-10, -5, -1000})
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void testNegativeAbs(int num) {
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assertEquals(-num, Math.abs(num));
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}
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@Test

‎src/test/java/com/examplehub/sorts/BubbleSortTest.java

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package com.examplehub.sorts;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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import com.examplehub.domain.Student;
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import com.examplehub.utils.RandomUtils;
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import com.examplehub.utils.SortUtils;
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import java.util.Arrays;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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import java.util.Arrays;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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class BubbleSortTest {
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private Sort sort;

‎src/test/java/com/examplehub/utils/StringUtilsTest.java

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import static org.junit.jupiter.api.Assertions.*;
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import org.junit.jupiter.api.Disabled;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.Arguments;
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import org.junit.jupiter.params.provider.CsvSource;
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import org.junit.jupiter.params.provider.MethodSource;
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import java.util.List;
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class StringUtilsTest {
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@Test
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char[] bytes = {'1', '2', '3', '4', '\0', '\0', '\0'};
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assertEquals("234", StringUtils.toString(bytes, 1, 3));
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}
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@ParameterizedTest
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@MethodSource
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void testCapitalize(String input, String excepted) {
30+
assertEquals(excepted, StringUtils.capitalize(input));
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}
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static List<Arguments> testCapitalize() {
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return List.of(Arguments.arguments("abc", "Abc"), //
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Arguments.arguments("APPLE", "Apple"), //
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Arguments.arguments("gooD", "Good"));
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}
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@ParameterizedTest
40+
@CsvSource({"abc, Abc", "APPLE, Apple", "gooD, Good"})
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void testCapitalizeCvsSource(String input, String excepted) {
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assertEquals(excepted, StringUtils.capitalize(input));
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}
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}

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