### Question:
ConstantCompletion implements Completion { @Nonnull @Override public CompletionItemKind getKind() { return Constant; }  @Nonnull @Override Collection<String> getCompletionSource(MyDocumentModel document); @Nonnull @Override String getSortOrderPrefix(); @Nonnull @Override CompletionItemKind getKind();  }### Answer:
@Test void getKind() { assertEquals(CompletionItemKind.Constant, completion.getKind()); }