//now do the merge in reverse
release = getReleaseMetadata();
snapshot = getSnapshotMetadata();
mergeOp = new NexusMergeOperation(new MetadataOperand(snapshot));
mergeOp.perform(release);
// check the release metadata, which should now be merged
assertThat(release.getArtifactId(), equalTo("test"));
assertThat(release.getGroupId(), equalTo("test"));
assertThat(release.getPlugins(), empty());