LoginSystem/src/test/java/fr/xephi/authme/util/StringUtilsTest.java
ljacqu a462780059 Create tests for StringUtils#getStackTrace and StringUtils#getDifference
- Create tests
- Make StringUtils final with private constructor (utility class)
2015-11-25 23:22:43 +01:00

131 lines
3.7 KiB
Java

package fr.xephi.authme.util;
import org.junit.Test;
import java.net.MalformedURLException;
import java.util.Arrays;
import java.util.List;
import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.stringContainsInOrder;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
/**
* Test for {@link StringUtils}.
*/
public class StringUtilsTest {
@Test
public void shouldFindContainedItem() {
// given
String text = "This is a test of containsAny()";
String piece = "test";
// when
boolean result = StringUtils.containsAny(text, "some", "words", "that", "do not", "exist", piece);
// then
assertThat(result, equalTo(true));
}
@Test
public void shouldReturnFalseIfNoneFound() {
// given
String text = "This is a test string";
// when
boolean result = StringUtils.containsAny(text, "some", "other", "words", null);
// then
assertThat(result, equalTo(false));
}
@Test
public void shouldReturnFalseForNullString() {
// given/when
boolean result = StringUtils.containsAny(null, "some", "words", "to", "check");
// then
assertThat(result, equalTo(false));
}
@Test
public void shouldCheckIsEmptyUtil() {
// Should be true for null/empty/whitespace
assertTrue(StringUtils.isEmpty(null));
assertTrue(StringUtils.isEmpty(""));
assertTrue(StringUtils.isEmpty(" \t"));
// Should be false if string has content
assertFalse(StringUtils.isEmpty("P"));
assertFalse(StringUtils.isEmpty(" test"));
}
@Test
public void shouldJoinString() {
// given
List<String> elements = Arrays.asList("test", "for", null, "join", "StringUtils");
// when
String result = StringUtils.join(", ", elements);
// then
assertThat(result, equalTo("test, for, join, StringUtils"));
}
@Test
public void shouldNotHaveDelimiter() {
// given
List<String> elements = Arrays.asList(" ", null, "\t", "hello", null);
// when
String result = StringUtils.join("-", elements);
// then
assertThat(result, equalTo("hello"));
}
@Test
public void shouldFormatException() {
// given
MalformedURLException ex = new MalformedURLException("Unrecognized URL format");
// when
String result = StringUtils.formatException(ex);
// then
assertThat(result, equalTo("[MalformedURLException]: Unrecognized URL format"));
}
@Test
public void shouldPrintStackTrace() {
// given
MalformedURLException ex = new MalformedURLException("Unrecognized URL format");
// when
String result = StringUtils.getStackTrace(ex);
// then
assertThat(result, stringContainsInOrder(getClass().getName()));
}
@Test
public void shouldGetDifferenceWithNullString() {
// given/when/then
assertThat(StringUtils.getDifference(null, "test"), equalTo(1.0));
assertThat(StringUtils.getDifference("test", null), equalTo(1.0));
assertThat(StringUtils.getDifference(null, null), equalTo(1.0));
}
@Test
public void shouldGetDifferenceBetweenTwoString() {
// given/when/then
assertThat(StringUtils.getDifference("test", "taste"), equalTo(0.4));
assertThat(StringUtils.getDifference("test", "bear"), equalTo(0.75));
assertThat(StringUtils.getDifference("test", "something"), greaterThan(0.88));
}
}