cadonna commented on a change in pull request #10052:
URL: https://github.com/apache/kafka/pull/10052#discussion_r577363631
##########
File path:
streams/src/test/java/org/apache/kafka/streams/state/internals/InMemoryKeyValueStoreTest.java
##########
@@ -60,4 +67,22 @@ public void shouldRemoveKeysWithNullValues() {
assertThat(store.get(0), nullValue());
}
+
+
+ @Test
+ public void shouldReturnKeysWithGivenPrefix(){
+ store = createKeyValueStore(driver.context());
+ final String value = "value";
+ final List<KeyValue<Integer, String>> entries = new ArrayList<>();
+ entries.add(new KeyValue<>(1, value));
+ entries.add(new KeyValue<>(2, value));
+ entries.add(new KeyValue<>(11, value));
+ entries.add(new KeyValue<>(13, value));
+
+ store.putAll(entries);
+ final KeyValueIterator<Integer, String> keysWithPrefix =
store.prefixScan(1, new IntegerSerializer());
Review comment:
That sounds good!
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