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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.clustercontroller.core;
import org.junit.jupiter.api.Test;
import static com.yahoo.vespa.clustercontroller.core.ContentNodeStats.BucketSpaceStats;
import static org.junit.jupiter.api.Assertions.*;
public class ContentNodeStatsTest {
@Test
void bucket_space_stats_can_transition_from_valid_to_invalid() {
BucketSpaceStats stats = BucketSpaceStats.of(5, 1);
assertTrue(stats.valid());
stats.merge(BucketSpaceStats.invalid(), 1);
assertFalse(stats.valid());
assertEquals(BucketSpaceStats.invalid(5, 1), stats);
}
@Test
void bucket_space_stats_can_transition_from_invalid_to_valid() {
BucketSpaceStats stats = BucketSpaceStats.invalid();
assertFalse(stats.valid());
stats.merge(BucketSpaceStats.of(5, 1), 1);
assertFalse(stats.valid());
stats.merge(BucketSpaceStats.invalid(), -1);
assertTrue(stats.valid());
assertEquals(BucketSpaceStats.of(5, 1), stats);
}
@Test
void bucket_space_stats_tracks_multiple_layers_of_invalid() {
BucketSpaceStats stats = BucketSpaceStats.invalid();
stats.merge(BucketSpaceStats.invalid(), 1);
assertFalse(stats.valid());
stats.merge(BucketSpaceStats.invalid(), 1);
assertFalse(stats.valid());
stats.merge(BucketSpaceStats.of(5, 1), 1);
assertFalse(stats.valid());
stats.merge(BucketSpaceStats.invalid(), -1);
assertFalse(stats.valid());
stats.merge(BucketSpaceStats.invalid(), -1);
assertFalse(stats.valid());
stats.merge(BucketSpaceStats.invalid(), -1);
assertTrue(stats.valid());
assertEquals(BucketSpaceStats.of(5, 1), stats);
}
@Test
void invalid_bucket_space_stats_may_have_pending_buckets() {
assertTrue(BucketSpaceStats.invalid().mayHaveBucketsPending(1.0));
}
@Test
void bucket_space_stats_without_buckets_total_use_buckets_pending_to_calculate_may_have_buckets_pending() {
assertTrue(BucketSpaceStats.of(0, 2).mayHaveBucketsPending(0.6));
assertTrue(BucketSpaceStats.of(0, 1).mayHaveBucketsPending(0.6));
assertFalse(BucketSpaceStats.of(0, 0).mayHaveBucketsPending(0.6));
}
@Test
void min_merge_completion_ratio_is_used_to_calculate_bucket_space_stats_may_have_buckets_pending() {
assertTrue(BucketSpaceStats.of(5, 6).mayHaveBucketsPending(0.6));
assertTrue(BucketSpaceStats.of(5, 5).mayHaveBucketsPending(0.6));
assertTrue(BucketSpaceStats.of(5, 4).mayHaveBucketsPending(0.6));
assertTrue(BucketSpaceStats.of(5, 3).mayHaveBucketsPending(0.6));
assertFalse(BucketSpaceStats.of(5, 2).mayHaveBucketsPending(0.6));
assertFalse(BucketSpaceStats.of(5, 1).mayHaveBucketsPending(0.6));
assertFalse(BucketSpaceStats.of(5, 0).mayHaveBucketsPending(0.6));
}
}
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