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-rw-r--r--vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/read/ReaderCustomizerTest.java3
-rw-r--r--vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/util/FutureProducer.java63
-rw-r--r--vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/write/WriterCustomizerTest.java3
3 files changed, 67 insertions, 2 deletions
diff --git a/vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/read/ReaderCustomizerTest.java b/vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/read/ReaderCustomizerTest.java
index 4648676bf..4c6810925 100644
--- a/vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/read/ReaderCustomizerTest.java
+++ b/vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/read/ReaderCustomizerTest.java
@@ -22,6 +22,7 @@ import io.fd.honeycomb.translate.MappingContext;
import io.fd.honeycomb.translate.ModificationCache;
import io.fd.honeycomb.translate.read.ReadContext;
import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
+import io.fd.honeycomb.vpp.test.util.FutureProducer;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
@@ -38,7 +39,7 @@ import org.openvpp.jvpp.core.future.FutureJVppCore;
* @param <D> Specific DataObject derived type (Identifiable), that is handled by this customizer
* @param <B> Specific Builder for handled type (D)
*/
-public abstract class ReaderCustomizerTest<D extends DataObject, B extends Builder<D>> {
+public abstract class ReaderCustomizerTest<D extends DataObject, B extends Builder<D>> implements FutureProducer {
@Mock
protected FutureJVppCore api;
diff --git a/vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/util/FutureProducer.java b/vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/util/FutureProducer.java
new file mode 100644
index 000000000..6a81549f2
--- /dev/null
+++ b/vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/util/FutureProducer.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.fd.honeycomb.vpp.test.util;
+
+import java.util.concurrent.CompletableFuture;
+import javax.annotation.Nonnull;
+import org.openvpp.jvpp.VppCallbackException;
+import org.openvpp.jvpp.core.future.FutureJVppCore;
+
+/**
+ * <p>VPP translation test helper, that produces instances of {@link CompletableFuture} with desired results.</p>
+ * <p>Useful when stubbing {@link FutureJVppCore} methods: <br>{@code when(api.showVersion(any())).thenReturn(future(new
+ * ShowVersionReply()));}</p>
+ */
+public interface FutureProducer {
+
+ /**
+ * Returns {@link CompletableFuture} with desired result.
+ *
+ * @param result returned when {@link CompletableFuture#get()} is invoked
+ * @param <T> the result type of returned future
+ */
+ default <T> CompletableFuture<T> future(@Nonnull final T result) {
+ final CompletableFuture<T> future = new CompletableFuture<>();
+ future.complete(result);
+ return future;
+ }
+
+ /**
+ * Returns {@link CompletableFuture} with provided {@link Exception} as a result.
+ *
+ * @param exception to be thrown when {@link CompletableFuture#get()} is invoked
+ * @param <T> the result type of returned future
+ */
+ default <T> CompletableFuture<T> failedFuture(@Nonnull final Exception exception) {
+ final CompletableFuture<T> future = new CompletableFuture<>();
+ future.completeExceptionally(exception);
+ return future;
+ }
+
+ /**
+ * Returns {@link CompletableFuture} with VppCallbackException(retval = -1) as a cause.
+ *
+ * @param <T> the result type of returned future
+ */
+ default <T> CompletableFuture<T> failedFuture() {
+ return failedFuture(new VppCallbackException("test-call", 1 /* ctxId */, -1 /* retval */));
+ }
+}
diff --git a/vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/write/WriterCustomizerTest.java b/vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/write/WriterCustomizerTest.java
index 0e1d00a9c..e09d7b617 100644
--- a/vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/write/WriterCustomizerTest.java
+++ b/vpp-common/vpp-translate-test/src/main/java/io/fd/honeycomb/vpp/test/write/WriterCustomizerTest.java
@@ -20,6 +20,7 @@ import io.fd.honeycomb.translate.MappingContext;
import io.fd.honeycomb.translate.ModificationCache;
import io.fd.honeycomb.translate.spi.write.WriterCustomizer;
import io.fd.honeycomb.translate.write.WriteContext;
+import io.fd.honeycomb.vpp.test.util.FutureProducer;
import org.junit.Before;
import org.mockito.Mock;
import org.mockito.Mockito;
@@ -29,7 +30,7 @@ import org.openvpp.jvpp.core.future.FutureJVppCore;
/**
* Generic test for classes implementing {@link WriterCustomizer} interface.
*/
-public abstract class WriterCustomizerTest {
+public abstract class WriterCustomizerTest implements FutureProducer {
@Mock
protected FutureJVppCore api;