@Test
	public void testSpanChunks() {

		long[] result = MetricUtils.concatArrays(data, 3, 6);
		assertArrayEquals(new long[] {4, 5, 6, 7, 8, 9}, result);
	}
Unit tests for the {@link MetricUtils} class.

@author Eric Bottard
spring-xd-analytics/src/test/java/org/springframework/xd/analytics/metrics/core/MetricUtilsTests.java