Unit test Benchmark utility

Plan/common/src/main/java/com/djrapitops/plan/utilities/dev/Benchmark.java

@@ -24,6 +24,8 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 import java.util.concurrent.TimeUnit;
 import java.util.function.Supplier;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 /**
  * @author AuroraLS3
@@ -33,7 +35,7 @@ public class Benchmark {
     private static final Formatter<Long> FORMATTER = new BenchmarkFormatter();
 
     private Benchmark() {
-        /* Only used for in-development benchmarks. */
+        /* Only used for in-development benchmarks. (static methods) */
     }
 
     public static void bench(Runnable runnable) {
@@ -72,10 +74,9 @@ public class Benchmark {
         }
         builder.append(" - ").append(calledFrom);
 
-        System.out.print(builder.toString());
+        Logger.getLogger("Plan").log(Level.INFO, builder::toString);
     }
 
-
     @Retention(RetentionPolicy.SOURCE)
     @Target({ElementType.METHOD, ElementType.TYPE})
     public static @interface Slow {

Plan/common/src/test/java/com/djrapitops/plan/utilities/dev/BenchmarkTest.java

@@ -0,0 +1,72 @@
+/*
+ *  This file is part of Player Analytics (Plan).
+ *
+ *  Plan is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License v3 as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Plan is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with Plan. If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.djrapitops.plan.utilities.dev;
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import utilities.LogStoringHandler;
+
+import java.util.List;
+import java.util.logging.LogRecord;
+import java.util.logging.Logger;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+/**
+ * Test to increase coverage on new code and pass sonar.
+ *
+ * @author AuroraLS3
+ */
+class BenchmarkTest {
+
+    LogStoringHandler logHandler;
+
+    @BeforeEach
+    void registerLogHandler() {
+        logHandler = new LogStoringHandler();
+        Logger.getLogger("Plan").addHandler(logHandler);
+    }
+
+    @AfterEach
+    void clearLogHandler() {
+        logHandler.close();
+    }
+
+    @Test
+    void benchmarkOnRunnable() {
+        Benchmark.bench(() -> {});
+        List<String> records = logHandler.getRecords().stream()
+                .map(LogRecord::getMessage)
+                .toList();
+        assertEquals(1, records.size());
+        assertTrue(records.get(0).contains("woah") || records.get(0).contains("fast"));
+    }
+
+    @Test
+    void benchmarkOnSupplier() {
+        boolean result = Benchmark.bench(() -> true);
+        assertTrue(result);
+        List<String> records = logHandler.getRecords().stream()
+                .map(LogRecord::getMessage)
+                .toList();
+        assertEquals(1, records.size());
+        assertTrue(records.get(0).contains("woah") || records.get(0).contains("fast"));
+    }
+
+}

Plan/common/src/test/java/utilities/LogStoringHandler.java

@@ -0,0 +1,47 @@
+/*
+ *  This file is part of Player Analytics (Plan).
+ *
+ *  Plan is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License v3 as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Plan is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with Plan. If not, see <https://www.gnu.org/licenses/>.
+ */
+package utilities;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Handler;
+import java.util.logging.LogRecord;
+
+/**
+ * @author AuroraLS3
+ */
+public class LogStoringHandler extends Handler {
+
+    private final List<LogRecord> records = new ArrayList<>();
+
+    @Override
+    public void publish(LogRecord record) {
+        records.add(record);
+    }
+
+    @Override
+    public void flush() {
+        /* Nothing to flush */
+    }
+
+    @Override
+    public void close() {records.clear();}
+
+    public List<LogRecord> getRecords() {
+        return records;
+    }
+}