1 files changed, 60 insertions, 0 deletions
diff --git a/container-search/src/test/java/com/yahoo/search/handler/StreamedFillTest.java b/container-search/src/test/java/com/yahoo/search/handler/StreamedFillTest.java
new file mode 100644
index 00000000000..bea16fbbdbc
--- /dev/null
+++ b/container-search/src/test/java/com/yahoo/search/handler/StreamedFillTest.java
@@ -0,0 +1,60 @@
+package com.yahoo.search.handler;
+
+import ai.vespa.cloud.ZoneInfo;
+import com.yahoo.component.provider.ComponentRegistry;
+import com.yahoo.container.core.ContainerHttpConfig;
+import com.yahoo.container.handler.threadpool.ContainerThreadPool;
+import com.yahoo.container.jdisc.ContentChannelOutputStream;
+import com.yahoo.container.jdisc.HttpRequest;
+import com.yahoo.jdisc.handler.ReadableContentChannel;
+import com.yahoo.jdisc.test.MockMetric;
+import com.yahoo.search.query.profile.compiled.CompiledQueryProfileRegistry;
+import com.yahoo.search.searchchain.ExecutionFactory;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+
+/**
+ * Tests filling hits as they are rendered to avoid having to keep all hits in memory.
+ *
+ * @author bratseth
+ */
+public class StreamedFillTest {
+
+    @Test
+    void testStreamedFill() {
+        var handler = new SearchHandler(new MockMetric(),
+                                        new SimpleContainerThreadpool(),
+                                        new CompiledQueryProfileRegistry(),
+                                        new ContainerHttpConfig.Builder().build(),
+                                        new ComponentRegistry(),
+                                        ExecutionFactory.empty(),
+                                        ZoneInfo.defaultInfo());
+        var request = HttpRequest.createTestRequest("?query=foo", com.yahoo.jdisc.http.HttpRequest.Method.GET);
+        var response = (HttpSearchResponse)handler.handle(request);
+        System.out.println(render(response));
+    }
+
+    private String render(HttpSearchResponse response) {
+        try {
+            var out = new ReadableContentChannel();
+            response.render(new ContentChannelOutputStream(out), out, null);
+            return new String(out.toStream().readAllBytes(), UTF_8);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private static class SimpleContainerThreadpool implements ContainerThreadPool {
+
+        private final Executor executor = Executors.newCachedThreadPool();
+
+        @Override public Executor executor() { return executor; }
+
+    }
+
+}