sanpwc commented on code in PR #918:
URL: https://github.com/apache/ignite-3/pull/918#discussion_r912901102
##########
modules/metastorage-server/src/test/java/org/apache/ignite/internal/metastorage/server/AbstractKeyValueStorageTest.java:
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@@ -2043,6 +2043,43 @@ public void rangeCursor() {
}
}
+ @Test
+ public void rangeCursorSkippingTombstones() {
+ byte[] key1 = key(1);
+ byte[] val1 = keyValue(1, 1);
+
+ byte[] key2 = key(2);
+ byte[] val2 = keyValue(2, 2);
+
+ assertEquals(0, storage.revision());
+ assertEquals(0, storage.updateCounter());
+
+ storage.put(key1, val1);
+
+ assertEquals(1, storage.revision());
+ assertEquals(1, storage.updateCounter());
+
+ storage.remove(key1);
+
+ assertEquals(2, storage.revision());
+ assertEquals(2, storage.updateCounter());
+
+ storage.put(key2, val2);
+
+ assertEquals(3, storage.revision());
+ assertEquals(3, storage.updateCounter());
+
+ // Range that includes tombstones.
+ Cursor<Entry> cur = storage.range(key1, null, true);
+
+ assertEquals(2, cur.stream().count());
Review Comment:
I'd rather add extra check not only for size, but for actual returned data
set. Otherwise given test will pass if, for example, only tombstone is returned
as a result for `storage.range(key1, null, false);`
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