Improve test coverage

src/main/java/by/andd3dfx/templateapp/error/GlobalExceptionHandler.java

@@ -2,7 +2,6 @@
 
 import by.andd3dfx.templateapp.error.dto.ExceptionResponse;
 import by.andd3dfx.templateapp.error.exception.NotFoundException;
-import by.andd3dfx.templateapp.error.exception.UnauthorizedException;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ControllerAdvice;
@@ -17,14 +16,6 @@
 @ControllerAdvice
 public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
 
-    /**
-     * 401.
-     */
-    @ExceptionHandler(UnauthorizedException.class)
-    public ResponseEntity<ExceptionResponse> handleUnauthorizedException(UnauthorizedException ex) {
-        return buildResponseEntity(ex, HttpStatus.UNAUTHORIZED);
-    }
-
     /**
      * 404.
      */

src/test/java/by/andd3dfx/templateapp/util/MemoryAppender.java

@@ -0,0 +1,17 @@
+package by.andd3dfx.templateapp.util;
+
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.core.read.ListAppender;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * Class for testing purposes to catch logs.
+ */
+public class MemoryAppender extends ListAppender<ILoggingEvent> {
+
+    public List<ILoggingEvent> getLoggedEvents() {
+        return Collections.unmodifiableList(this.list);
+    }
+}

src/test/java/by/andd3dfx/templateapp/util/StartupHelperTest.java

@@ -0,0 +1,44 @@
+package by.andd3dfx.templateapp.util;
+
+import ch.qos.logback.classic.Logger;
+import ch.qos.logback.classic.LoggerContext;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.slf4j.LoggerFactory;
+import org.springframework.core.env.StandardEnvironment;
+
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class StartupHelperTest {
+
+    private MemoryAppender memoryAppender;
+
+    @BeforeEach
+    public void clearLoggingStatements() {
+        memoryAppender = new MemoryAppender();
+        memoryAppender.setContext((LoggerContext) LoggerFactory.getILoggerFactory());
+        Logger logger = (Logger) LoggerFactory.getLogger(StartupHelper.class.getCanonicalName());
+        logger.addAppender(memoryAppender);
+        memoryAppender.start();
+    }
+
+    @Test
+    void logApplicationStartup() {
+        final StandardEnvironment env = new StandardEnvironment();
+
+        StartupHelper.logApplicationStartup(env);
+
+        List<ILoggingEvent> loggedEvents = memoryAppender.getLoggedEvents();
+        assertEquals(loggedEvents.size(), 1);
+        assertEquals(loggedEvents.get(0).getMessage(), "\n"
+                + "----------------------------------------------------------\n"
+                + "\tApplication '{}' is running! Access URLs:\n"
+                + "\tLocal: \t\t{}://localhost:{}{}\n"
+                + "\tExternal: \t{}://{}:{}{}\n"
+                + "\tProfile(s): \t{}\n"
+                + "----------------------------------------------------------");
+    }
+}