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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.provision.provisioning;
import com.yahoo.config.provision.Flavor;
import com.yahoo.config.provisioning.FlavorsConfig;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* @author smorgrav
*/
public class ResourceCapacityTest {
@Test
public void basic_capacity_and_compare_operations() {
FlavorConfigBuilder b = new FlavorConfigBuilder();
b.addFlavor("host-large", 6., 6., 6, Flavor.Type.BARE_METAL);
b.addFlavor("host-small", 3., 3., 3, Flavor.Type.BARE_METAL);
b.addFlavor("d-1", 1, 1., 1, Flavor.Type.DOCKER_CONTAINER);
b.addFlavor("d-2", 2, 2., 2, Flavor.Type.DOCKER_CONTAINER);
b.addFlavor("d-3", 3, 3., 3, Flavor.Type.DOCKER_CONTAINER);
b.addFlavor("d-3-disk", 3, 3., 5, Flavor.Type.DOCKER_CONTAINER);
b.addFlavor("d-3-mem", 3, 5., 3, Flavor.Type.DOCKER_CONTAINER);
b.addFlavor("d-3-cpu", 5, 3., 3, Flavor.Type.DOCKER_CONTAINER);
FlavorsConfig flavors = b.build();
Flavor hostLargeFlavor = new Flavor(flavors.flavor(0));
Flavor hostSmallFlavor = new Flavor(flavors.flavor(1));
Flavor d1Flavor = new Flavor(flavors.flavor(2));
Flavor d2Flavor = new Flavor(flavors.flavor(3));
Flavor d3Flavor = new Flavor(flavors.flavor(4));
Flavor d3DiskFlavor = new Flavor(flavors.flavor(5));
Flavor d3MemFlavor = new Flavor(flavors.flavor(6));
Flavor d3CPUFlavor = new Flavor(flavors.flavor(7));
ResourceCapacity capacityOfHostSmall = ResourceCapacity.of(hostSmallFlavor);
// Assert initial capacities
assertTrue(capacityOfHostSmall.hasCapacityFor(hostSmallFlavor));
assertTrue(capacityOfHostSmall.hasCapacityFor(d1Flavor));
assertTrue(capacityOfHostSmall.hasCapacityFor(d2Flavor));
assertTrue(capacityOfHostSmall.hasCapacityFor(d3Flavor));
assertFalse(capacityOfHostSmall.hasCapacityFor(hostLargeFlavor));
// Also check that we are taking all three resources into accout
assertFalse(capacityOfHostSmall.hasCapacityFor(d3DiskFlavor));
assertFalse(capacityOfHostSmall.hasCapacityFor(d3MemFlavor));
assertFalse(capacityOfHostSmall.hasCapacityFor(d3CPUFlavor));
// Compare it to various flavors
assertEquals(1, compare(capacityOfHostSmall, nodeCapacity(d1Flavor)));
assertEquals(1, compare(capacityOfHostSmall, nodeCapacity(d2Flavor)));
assertEquals(0, compare(capacityOfHostSmall, nodeCapacity(d3Flavor)));
assertEquals(-1, compare(capacityOfHostSmall, nodeCapacity(d3DiskFlavor)));
assertEquals(-1, compare(capacityOfHostSmall, nodeCapacity(d3CPUFlavor)));
assertEquals(-1, compare(capacityOfHostSmall, nodeCapacity(d3MemFlavor)));
// Change free capacity and assert on rest capacity
capacityOfHostSmall = capacityOfHostSmall.subtract(ResourceCapacity.of(d1Flavor));
assertEquals(0, compare(capacityOfHostSmall, nodeCapacity(d2Flavor)));
// Assert on rest capacity
assertTrue(capacityOfHostSmall.hasCapacityFor(d1Flavor));
assertFalse(capacityOfHostSmall.hasCapacityFor(d3Flavor));
// At last compare the disk and cpu and mem variations
assertEquals(-1, compare(nodeCapacity(d3Flavor), nodeCapacity(d3DiskFlavor)));
assertEquals(1, compare(nodeCapacity(d3DiskFlavor), nodeCapacity(d3CPUFlavor)));
assertEquals(-1, compare(nodeCapacity(d3CPUFlavor), nodeCapacity(d3MemFlavor)));
assertEquals(1, compare(nodeCapacity(d3MemFlavor), nodeCapacity(d3DiskFlavor)));
}
private ResourceCapacity nodeCapacity(Flavor flavor) {
return ResourceCapacity.of(flavor);
}
private int compare(ResourceCapacity a, ResourceCapacity b) {
return ResourceCapacityComparator.defaultOrder().compare(a, b);
}
}
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