iSharkFly-Docs/java-tutorials
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

DO NOT PUSH

Browse Source
This commit is contained in:
Predrag Maric 2017-05-11 00:41:25 +02:00
commit 458f609ba9
2 changed files with 60 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
core-java/src/main/java/com/baeldung/string/RemoveLastChar.java Normal file
View File

@ -0,0 +1,11 @@
package com.baeldung.string;
public class RemoveLastChar {
public static String substring(String s) {
if (s == null || s.length() == 0) {
return s;
} else {
return (s.substring(0, s.length() - 1));
}
}
}

49
core-java/src/test/java/com/baeldung/string/RemoveLastCharTest.java Normal file
View File

@ -0,0 +1,49 @@
package com.baeldung.string;
import static org.junit.Assert.assertEquals;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
public class RemoveLastCharTest {
public static final String TEST_STRING = "abcdef";
public static final String NULL_STRING = null;
public static final String EMPTY_STRING = "";
public static final String ONE_CHAR_STRING = "a";
public static final String WHITE_SPACE_AT_THE_END_STRING = "abc ";
@Test
public void givenTestString_whenSubstring_thenGetStingWithoutLastChar() {
assertEquals("abcde", RemoveLastChar.substring(TEST_STRING));
assertEquals("abcde", StringUtils.substring(TEST_STRING, 0, TEST_STRING.length() - 1));
assertEquals("abcde", StringUtils.chop(TEST_STRING));
}
@Test
public void givenNullString_whenSubstring_thenGetNullString() {
assertEquals(NULL_STRING, RemoveLastChar.substring(NULL_STRING));
assertEquals(NULL_STRING, StringUtils.chop(NULL_STRING));
}
@Test
public void givenEmptyString_whenSubstring_thenGetEmptyString() {
assertEquals(EMPTY_STRING, RemoveLastChar.substring(EMPTY_STRING));
assertEquals(EMPTY_STRING, StringUtils.substring(EMPTY_STRING, 0, EMPTY_STRING.length() - 1));
assertEquals(EMPTY_STRING, StringUtils.chop(EMPTY_STRING));
}
@Test
public void givenOneCharString_whenSubstring_thenGetEmptyString() {
assertEquals(EMPTY_STRING, RemoveLastChar.substring(ONE_CHAR_STRING));
assertEquals(EMPTY_STRING, StringUtils.substring(ONE_CHAR_STRING, 0, ONE_CHAR_STRING.length() - 1));
assertEquals(EMPTY_STRING, StringUtils.chop(ONE_CHAR_STRING));
}
@Test
public void givenStringWithWhiteSpaceAtTheEnd_whenSubstring_thenGetStringWithoutWhiteSpaceAtTheEnd() {
assertEquals("abc", RemoveLastChar.substring(WHITE_SPACE_AT_THE_END_STRING));
assertEquals("abc", StringUtils.substring(WHITE_SPACE_AT_THE_END_STRING, 0, WHITE_SPACE_AT_THE_END_STRING.length() - 1));
assertEquals("abc", StringUtils.chop(WHITE_SPACE_AT_THE_END_STRING));
}
}