Introduce integration tests to Honeycomb

+ Add writer infrastructure initial test

Change-Id: I0c1017f55c9456f145943ca6db6221555b746c8f
Signed-off-by: Maros Marsalek <mmarsale@cisco.com>

2 files changed, 3 insertions, 6 deletions

diff --git a/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/write/registry/FlatWriterRegistry.java b/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/write/registry/FlatWriterRegistry.java
index 79d8eb88d..4abad23a6 100644
--- a/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/write/registry/FlatWriterRegistry.java
+++ b/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/write/registry/FlatWriterRegistry.java
@@ -17,7 +17,6 @@
 package io.fd.honeycomb.v3po.translate.util.write.registry;
 
 import static com.google.common.base.Preconditions.checkArgument;
-import static com.google.common.base.Preconditions.checkNotNull;
 
 import com.google.common.base.Optional;
 import com.google.common.collect.HashMultimap;
@@ -261,11 +260,9 @@ final class FlatWriterRegistry implements WriterRegistry {
         return !Sets.intersection(writer.getHandledChildTypes(), updates.keySet()).isEmpty();
     }
 
+    @Nullable
     private Writer<?> getWriter(@Nonnull final InstanceIdentifier<?> singleType) {
-        final Writer<?> writer = writers.get(singleType);
-        checkNotNull(writer,
-                "Unable to write %s. Missing writer. Current writers for: %s", singleType, writers.keySet());
-        return writer;
+        return writers.get(singleType);
     }
 
     @Nonnull
diff --git a/v3po/translate-utils/src/test/java/io/fd/honeycomb/v3po/translate/util/write/registry/FlatWriterRegistryTest.java b/v3po/translate-utils/src/test/java/io/fd/honeycomb/v3po/translate/util/write/registry/FlatWriterRegistryTest.java
index 7fb5779f3..df3296557 100644
--- a/v3po/translate-utils/src/test/java/io/fd/honeycomb/v3po/translate/util/write/registry/FlatWriterRegistryTest.java
+++ b/v3po/translate-utils/src/test/java/io/fd/honeycomb/v3po/translate/util/write/registry/FlatWriterRegistryTest.java
@@ -272,7 +272,7 @@ public class FlatWriterRegistryTest {
         updates.put(iid, DataObjectUpdate.create(iid, mock(type), mock(type)));
     }
 
-    @Test(expected = NullPointerException.class)
+    @Test(expected = IllegalArgumentException.class)
     public void testSingleUpdateMissingWriter() throws Exception {
         final FlatWriterRegistry flatWriterRegistry =
                 new FlatWriterRegistry(ImmutableMap.of());