feat: Initial clean release of CHM

packages/lib/PerformanceLogger.test.ts

@@ -0,0 +1,27 @@
+import PerformanceLogger from './PerformanceLogger';
+
+describe('PerformanceLogger', () => {
+	beforeEach(() => {
+		PerformanceLogger.reset_();
+	});
+
+	test('should buffer log messages created before a logger is attached', () => {
+		const logger = PerformanceLogger.create();
+		logger.mark('test/Test');
+
+		const log: string[] = [];
+		PerformanceLogger.setLogger({
+			info: (message) => log.push(`info: ${message}`),
+			debug: (message) => log.push(`debug: ${message}`),
+		});
+
+		expect(log).toHaveLength(1);
+		expect(log[0]).toMatch(/^info: Performance: test\/Test: Mark at/);
+
+		// Should continue using the set logger
+		const task = logger.taskStart('test/Test task');
+		expect(log).toHaveLength(2);
+		task.onEnd();
+		expect(log).toHaveLength(3);
+	});
+});