@Test
    public void scaling_down_only_after_delay() {
        var fixture = DynamicProvisioningTester.fixture().awsProdSetup(true).build();
        fixture.loader().applyCpuLoad(0.02, 5);
        assertTrue("Too soon  after initial deployment", fixture.autoscale().resources().isEmpty());
        fixture.tester().clock().advance(Duration.ofHours(12 * 3 + 1));
        fixture.loader().applyCpuLoad(0.02, 5);
        fixture.tester().assertResources("Scaling down since enough time has passed",
                                         5, 1, 1.0, 11.9, 50.5,
                                         fixture.autoscale());
    }
Same as above but mostly write traffic, which favors smaller groups
node-repository/src/test/java/com/yahoo/vespa/hosted/provision/autoscale/AutoscalingTest.java