@Test
    public void test_autoscaling_without_traffic_exclusive() {
        var min = new ClusterResources(1, 1, new NodeResources(0.5, 4, 100, 0.3));
        var now = new ClusterResources(4, 1, new NodeResources(8, 16, 100, 0.3));
        var max = new ClusterResources(4, 1, new NodeResources(16, 32, 500, 0.3));
        var fixture = DynamicProvisioningTester.fixture(min, now, max)
                                               .clusterType(ClusterSpec.Type.container)
                                               .awsProdSetup(false)
                                               .build();
        var duration = fixture.loader().addMeasurements(new Load(0.04, 0.39, 0.01, 0, 0), 20);
        fixture.tester().clock().advance(duration.negated());
        fixture.loader().zeroTraffic(20, 1);
        fixture.tester().assertResources("Scaled down",
                                         2, 1, 2, 8, 100,
                                         fixture.autoscale());
    }
When ok to scale down, scale in both directions simultaneously (compare to test_only_autoscaling_up_quickly)
node-repository/src/test/java/com/yahoo/vespa/hosted/provision/autoscale/AutoscalingTest.java