ChristinaTech commented on code in PR #7718:
URL: https://github.com/apache/iceberg/pull/7718#discussion_r1227130093
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core/src/test/java/org/apache/iceberg/util/TestSnapshotUtil.java:
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@@ -101,54 +116,72 @@ public void cleanupTables() {
@Test
public void isParentAncestorOf() {
- Assert.assertTrue(SnapshotUtil.isParentAncestorOf(table, snapshotBId,
snapshotAId));
- Assert.assertFalse(SnapshotUtil.isParentAncestorOf(table, snapshotCId,
snapshotBId));
+ Assert.assertTrue(SnapshotUtil.isParentAncestorOf(table, snapshotMain1Id,
snapshotBaseId));
+ Assert.assertFalse(SnapshotUtil.isParentAncestorOf(table,
snapshotBranchId, snapshotMain1Id));
+ Assert.assertTrue(SnapshotUtil.isParentAncestorOf(table, snapshotFork2Id,
snapshotFork0Id));
}
@Test
public void isAncestorOf() {
- Assert.assertTrue(SnapshotUtil.isAncestorOf(table, snapshotBId,
snapshotAId));
- Assert.assertFalse(SnapshotUtil.isAncestorOf(table, snapshotCId,
snapshotBId));
+ Assert.assertTrue(SnapshotUtil.isAncestorOf(table, snapshotMain1Id,
snapshotBaseId));
+ Assert.assertFalse(SnapshotUtil.isAncestorOf(table, snapshotBranchId,
snapshotMain1Id));
+ Assert.assertFalse(SnapshotUtil.isAncestorOf(table, snapshotFork2Id,
snapshotFork0Id));
- Assert.assertTrue(SnapshotUtil.isAncestorOf(table, snapshotBId));
- Assert.assertFalse(SnapshotUtil.isAncestorOf(table, snapshotCId));
+ Assert.assertTrue(SnapshotUtil.isAncestorOf(table, snapshotMain1Id));
+ Assert.assertFalse(SnapshotUtil.isAncestorOf(table, snapshotBranchId));
}
@Test
public void currentAncestors() {
Iterable<Snapshot> snapshots = SnapshotUtil.currentAncestors(table);
- expectedSnapshots(new long[] {snapshotDId, snapshotBId, snapshotAId},
snapshots);
+ expectedSnapshots(new long[] {snapshotMain2Id, snapshotMain1Id,
snapshotBaseId}, snapshots);
List<Long> snapshotList = SnapshotUtil.currentAncestorIds(table);
Assert.assertArrayEquals(
- new Long[] {snapshotDId, snapshotBId, snapshotAId},
snapshotList.toArray(new Long[0]));
+ new Long[] {snapshotMain2Id, snapshotMain1Id, snapshotBaseId},
+ snapshotList.toArray(new Long[0]));
}
@Test
public void oldestAncestor() {
Snapshot snapshot = SnapshotUtil.oldestAncestor(table);
- Assert.assertEquals(snapshotAId, snapshot.snapshotId());
+ Assert.assertEquals(snapshotBaseId, snapshot.snapshotId());
- snapshot = SnapshotUtil.oldestAncestorOf(table, snapshotDId);
- Assert.assertEquals(snapshotAId, snapshot.snapshotId());
+ snapshot = SnapshotUtil.oldestAncestorOf(table, snapshotMain2Id);
+ Assert.assertEquals(snapshotBaseId, snapshot.snapshotId());
- snapshot = SnapshotUtil.oldestAncestorAfter(table, snapshotATimestamp + 1);
- Assert.assertEquals(snapshotBId, snapshot.snapshotId());
+ snapshot = SnapshotUtil.oldestAncestorAfter(table, snapshotBaseTimestamp +
1);
+ Assert.assertEquals(snapshotMain1Id, snapshot.snapshotId());
}
@Test
public void snapshotsBetween() {
List<Long> snapshotIdsBetween =
- SnapshotUtil.snapshotIdsBetween(table, snapshotAId, snapshotDId);
+ SnapshotUtil.snapshotIdsBetween(table, snapshotBaseId,
snapshotMain2Id);
Assert.assertArrayEquals(
- new Long[] {snapshotDId, snapshotBId}, snapshotIdsBetween.toArray(new
Long[0]));
+ new Long[] {snapshotMain2Id, snapshotMain1Id},
snapshotIdsBetween.toArray(new Long[0]));
Iterable<Snapshot> ancestorsBetween =
- SnapshotUtil.ancestorsBetween(table, snapshotDId, snapshotBId);
- expectedSnapshots(new long[] {snapshotDId}, ancestorsBetween);
+ SnapshotUtil.ancestorsBetween(table, snapshotMain2Id, snapshotMain1Id);
+ expectedSnapshots(new long[] {snapshotMain2Id}, ancestorsBetween);
+
+ ancestorsBetween = SnapshotUtil.ancestorsBetween(table, snapshotMain2Id,
snapshotBranchId);
+ expectedSnapshots(
+ new long[] {snapshotMain2Id, snapshotMain1Id, snapshotBaseId},
ancestorsBetween);
+ }
+
+ @Test
+ public void ancestorsOf() {
+ Iterable<Snapshot> snapshots = SnapshotUtil.ancestorsOf(snapshotFork2Id,
table::snapshot);
+ expectedSnapshots(new long[] {snapshotFork2Id, snapshotFork1Id},
snapshots);
+
+ Iterator<Snapshot> snapshotIter = snapshots.iterator();
+ while (snapshotIter.hasNext()) {
+ snapshotIter.next();
+ }
- ancestorsBetween = SnapshotUtil.ancestorsBetween(table, snapshotDId,
snapshotCId);
- expectedSnapshots(new long[] {snapshotDId, snapshotBId, snapshotAId},
ancestorsBetween);
+ // Once snapshot iterator has been exhausted, call hasNext again to make
sure it is stable.
+ Assert.assertFalse(snapshotIter.hasNext());
Review Comment:
Fixed in follow-up commit.
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