added test failure logging

backend/build.gradle.kts

@@ -65,3 +65,16 @@ tasks.withType<JavaCompile> {
 tasks.withType<Test> {
 	useJUnitPlatform()
 }
+
+tasks.withType<Test> {
+    useJUnitPlatform()
+    
+    // log exact test failures, standard out, and errors in CI
+    testLogging {
+        events("failed", "standardError")
+        exceptionFormat = org.gradle.api.tasks.testing.logging.TestExceptionFormat.FULL
+        showExceptions = true
+        showCauses = true
+        showStackTraces = true
+    }
+}