protected void createPreSplitLoadTestTable(TableDescriptor tableDescriptor,
    ColumnFamilyDescriptor familyDescriptor) throws IOException {
    LoadTestUtil.createPreSplitLoadTestTable(conf, tableDescriptor, familyDescriptor);
    TEST_UTIL.waitUntilAllRegionsAssigned(tableDescriptor.getTableName());
  }
A write/read/verify load test on a mini HBase cluster. Tests reading and then writing.
hbase-diagnostics/src/test/java/org/apache/hadoop/hbase/util/TestMiniClusterLoadSequential.java