HONEYCOMB-331: unify initialization handling

Due to incorrect instance of check, InitSubtreeReader was never created
in CompositeReaderRegistryBuilder.getSubtreeHandler().

As a consequence, initializers registered by subtreeAdd*, were not invoked.

The patch:
- fixes mentioned check,
- makes readers implement InitReader instead of directly
  implementing Initializer
- includes missing unit tests for GenericReaders.

Change-Id: I93be59fafddb60dce00191958b5c8c62e7c2d289
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

1 files changed, 98 insertions, 0 deletions

diff --git a/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/AbstractReaderTest.java b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/AbstractReaderTest.java
new file mode 100644
index 000000000..cac321764
--- /dev/null
+++ b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/read/AbstractReaderTest.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2017 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.translate.impl.read;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+public abstract class AbstractReaderTest {
+
+    protected static final InstanceIdentifier<DataObject>
+            DATA_OBJECT_ID = InstanceIdentifier.create(DataObject.class);
+    private final Class<? extends ReaderCustomizer> customizerClass;
+
+    @Mock
+    protected Builder<DataObject> builder;
+    @Mock
+    protected DataObject data;
+    @Mock
+    protected ReadContext ctx;
+
+    private ReaderCustomizer<DataObject, Builder<DataObject>> customizer;
+    private GenericReader<DataObject, Builder<DataObject>> reader;
+
+    protected AbstractReaderTest(final Class<? extends ReaderCustomizer> customizerClass) {
+        this.customizerClass = customizerClass;
+    }
+
+    @SuppressWarnings("unchecked")
+    @Before
+    public final void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+        customizer = mock(customizerClass);
+        when(customizer.getBuilder(DATA_OBJECT_ID)).thenReturn(builder);
+        reader = initReader();
+        when(builder.build()).thenReturn(data);
+    }
+
+    protected abstract GenericReader<DataObject,Builder<DataObject>> initReader();
+
+    protected GenericReader<DataObject, Builder<DataObject>> getReader() {
+        return reader;
+    }
+
+    protected ReaderCustomizer<DataObject, Builder<DataObject>> getCustomizer() {
+        return customizer;
+    }
+
+    @Test
+    public void testGetBuilder() throws Exception {
+        assertEquals(builder, reader.getBuilder(DATA_OBJECT_ID));
+        verify(customizer).getBuilder(DATA_OBJECT_ID);
+    }
+
+    @Test
+    public void testManagedType() throws Exception {
+        assertEquals(DATA_OBJECT_ID, reader.getManagedDataObjectType());
+    }
+
+    @Test
+    public void testMerge() throws Exception {
+        reader.merge(builder, data);
+        verify(customizer).merge(builder, data);
+    }
+
+    @Test
+    public void testRead() throws Exception {
+        reader.read(DATA_OBJECT_ID, ctx);
+
+        verify(customizer).getBuilder(DATA_OBJECT_ID);
+        verify(customizer).readCurrentAttributes(DATA_OBJECT_ID, builder, ctx);
+    }
+}
\ No newline at end of file