Add test for ResetLogbackLoggingExtension

* Make logbackConfigFilePath final in ResetLogbackLoggingExtension
* Add test that verifies default and custom config locations

src/main/java/org/kiwiproject/test/junit/jupiter/ResetLogbackLoggingExtension.java

@@ -4,6 +4,7 @@
 import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
+import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.junit.jupiter.api.extension.AfterAllCallback;
@@ -56,10 +57,12 @@
 @NoArgsConstructor
 @AllArgsConstructor(access = AccessLevel.PACKAGE)
 @Slf4j
+@SuppressWarnings("LombokGetterMayBeUsed")
 public class ResetLogbackLoggingExtension implements AfterAllCallback {
 
+    @Getter
     @Builder.Default
-    private String logbackConfigFilePath = ClassicConstants.TEST_AUTOCONFIG_FILE;
+    private final String logbackConfigFilePath = ClassicConstants.TEST_AUTOCONFIG_FILE;
 
     @Override
     public void afterAll(ExtensionContext context) {

src/test/java/org/kiwiproject/test/junit/jupiter/ResetLogbackLoggingExtensionTest.java

@@ -0,0 +1,36 @@
+package org.kiwiproject.test.junit.jupiter;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import ch.qos.logback.classic.ClassicConstants;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+@DisplayName("ResetLogbackLoggingExtension")
+class ResetLogbackLoggingExtensionTest {
+
+    @Test
+    void shouldConstructWithLogbackTestFileAsDefaultConfigLocation() {
+        var extension = new ResetLogbackLoggingExtension();
+        assertThat(extension.getLogbackConfigFilePath())
+                .isEqualTo(ClassicConstants.TEST_AUTOCONFIG_FILE);
+    }
+
+    @Test
+    void shouldBuildWithLogbackTestFileAsDefaultConfigLocation() {
+        var extension = ResetLogbackLoggingExtension.builder().build();
+        assertThat(extension.getLogbackConfigFilePath())
+                .isEqualTo(ClassicConstants.TEST_AUTOCONFIG_FILE);
+    }
+
+    @Test
+    void shouldAllowCustomConfigLocation() {
+        var customLocation = "acme-test-logback.xml";
+
+        var extension = ResetLogbackLoggingExtension.builder()
+                .logbackConfigFilePath(customLocation)
+                .build();
+
+        assertThat(extension.getLogbackConfigFilePath()).isEqualTo(customLocation);
+    }
+}