BAEL-29 Refactored Code to comeup with Unit Test

2016-11-12 13:42:01 +05:30
parent 584ae4167f
commit c30bd6caa7
2 changed files with 104 additions and 60 deletions
--- a/core-java/src/test/java/com/baeldung/java/conversion/StringConversionTest.java
+++ b/core-java/src/test/java/com/baeldung/java/conversion/StringConversionTest.java
@@ -0,0 +1,104 @@
+package com.baeldung.java.conversion;
+
+import static org.junit.Assert.assertEquals;
+
+import java.io.UnsupportedEncodingException;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.time.LocalDateTime;
+import java.time.Month;
+import java.util.Arrays;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
+
+import org.junit.Test;
+
+import com.baeldung.datetime.UseLocalDateTime;
+
+public class StringConversionTest {
+
+    @Test
+    public void givenString_whenConvertedToint_thenCorrect() {
+        String str = "1";
+        assertEquals(Integer.parseInt(str), 1);
+    }
+
+    @Test
+    public void givenString_whenConvertedToInteger_thenCorrect() {
+        String str = "12";
+        Integer number = Integer.valueOf(str);
+        assertEquals(number.intValue(), 12);
+    }
+
+    @Test
+    public void givenString_whenConvertedTolong_thenCorrect() {
+        String str = "12345";
+        assertEquals(Long.parseLong(str), 12345);
+    }
+
+    @Test
+    public void givenString_whenConvertedToLong_thenCorrect() {
+        String str = "14567";
+        Long number = Long.valueOf(str);
+        assertEquals(number.longValue(), 14567);
+    }
+
+    @Test
+    public void givenString_whenConvertedTodouble_thenCorrect() {
+        String str = "1.4";
+        assertEquals(Double.parseDouble(str), 1.4, 0.0);
+    }
+
+    @Test
+    public void givenString_whenConvertedToDouble_thenCorrect() {
+        String str = "145.67";
+        Double number = Double.valueOf(str);
+        assertEquals(number.doubleValue(), 145.67, 0.0);
+    }
+
+    @Test
+    public void givenString_whenConvertedToByteArray_thenCorrect() throws UnsupportedEncodingException {
+        byte[] byteArray1 = new byte[] { 'a', 'b', 'c' };
+        String str = new String(byteArray1, "UTF-8");
+        assertEquals(Arrays.equals(str.getBytes(), byteArray1), true);
+    }
+
+    @Test
+    public void givenString_whenConvertedToboolean_thenCorrect() {
+        String str = "true";
+        assertEquals(Boolean.parseBoolean(str), true);
+    }
+
+    @Test
+    public void givenString_whenConvertedToBoolean_thenCorrect() {
+        String str = "true";
+        assertEquals(Boolean.valueOf(str), true);
+    }
+
+    @Test
+    public void givenString_whenConvertedToCharArray_thenCorrect() {
+        String str = "hello";
+        char[] charArray = { 'h', 'e', 'l', 'l', 'o' };
+        assertEquals(Arrays.equals(charArray, str.toCharArray()), true);
+    }
+
+    @Test
+    public void givenString_whenConvertedToJava6Date_thenCorrect() throws ParseException {
+        String str = "15/10/2013";
+        SimpleDateFormat formatter = new SimpleDateFormat("dd/M/yyyy");
+        Date date1 = formatter.parse(str);
+        Calendar calendar = new GregorianCalendar(2013, 9, 15);
+        Date date2 = calendar.getTime();
+        assertEquals(date1.compareTo(date2), 0);
+    }
+
+    @Test
+    public void givenString_whenConvertedToJava8Date_thenCorrect() throws ParseException {
+        String str = "2007-12-03T10:15:30";
+        LocalDateTime localDateTime = new UseLocalDateTime().getLocalDateTimeUsingParseMethod(str);
+        assertEquals(localDateTime.getDayOfMonth(), 3);
+        assertEquals(localDateTime.getMonth(), Month.DECEMBER);
+        assertEquals(localDateTime.getYear(), 2007);
+    }
+}