<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-webapp</artifactId>
<version>9.4.43.v20210629</version>
<scope>test</scope>
</dependency>
public class StringUtils {
public static int countOccurrences(String str, char ch) {
int count = 0;
for (char c : str.toCharArray()) {
if (c == ch) {
count++;
}
}
return count;
}
}
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.webapp.WebAppContext;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class StringUtilsTest {
private static Server server;
@BeforeClass
public static void setUp() throws Exception {
server = new Server(8080);
WebAppContext webAppContext = new WebAppContext();
webAppContext.setDescriptor("src/main/webapp/WEB-INF/web.xml");
webAppContext.setResourceBase("src/main/webapp");
webAppContext.setContextPath("/");
webAppContext.addServlet(StringUtilsServlet.class, "/StringUtilsServlet");
server.setHandler(webAppContext);
server.start();
}
@AfterClass
public static void tearDown() throws Exception {
server.stop();
}
@Test
public void testCountOccurrences() throws Exception {
String response = HttpClientUtil.getRequest("http://localhost:8080/StringUtilsServlet?str=hello&ch=l");
assertEquals("2", response);
}
}
