package com.cloudera.flume.agent;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.util.List;
import org.junit.Test;
import com.cloudera.flume.conf.FlumeSpecException;
import com.google.common.collect.Lists;
@Test
LogicalNodeManager lnm = new LogicalNodeManager("local");
lnm.spawn("foo1", "null", "null");
lnm.spawn("foo2", "null", "null");
lnm.spawn("foo3", "null", "null");
assertEquals(3, lnm.getNodes().size());
lnm.decommission("foo1");
lnm.decommission("foo2");
lnm.decommission("foo3");
assertEquals(0, lnm.getNodes().size());
}
@Test(expected = IOException.class)
LogicalNodeManager lnm = new LogicalNodeManager("local");
lnm.decommission("nonexist");
}
@Test
FlumeSpecException {
LogicalNodeManager lnm = new LogicalNodeManager("local");
lnm.spawn("foo1", "null", "null");
lnm.spawn("foo2", "null", "null");
lnm.spawn("foo3", "null", "null");
assertEquals(3, lnm.getNodes().size());
List<String> nodes = Lists.newArrayList("foo1", "foo2", "foo3");
lnm.decommissionAllBut(nodes);
assertEquals(3, lnm.getNodes().size());
nodes.remove(0);
lnm.decommissionAllBut(nodes);
assertEquals(2, lnm.getNodes().size());
nodes.remove(0);
lnm.decommissionAllBut(nodes);
assertEquals(1, lnm.getNodes().size());
nodes.remove(0);
lnm.decommissionAllBut(nodes);
assertEquals(0, lnm.getNodes().size());
}
}