Fix a behavior change in dicttool

The behavior change was introduced by I8b3458ad. Concretely,
empty bigram lists would end up as empty lists instead of null.

Change-Id: Ibcdf7e6aabc6aba3f5db0477335882394e050ce5

1 files changed, 7 insertions, 5 deletions

diff --git a/tests/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderEncoderTests.java b/tests/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderEncoderTests.java
index 215c9ddc7..201b8bb77 100644
--- a/tests/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderEncoderTests.java
+++ b/tests/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderEncoderTests.java
@@ -715,11 +715,13 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
                 }
                 assertTrue(shortcutList.isEmpty());
             }
-            for (final WeightedString bigramTarget : wordProperty.getBigrams()) {
-                final String word1 = bigramTarget.mWord;
-                final Pair<String, String> bigram = new Pair<>(word0, word1);
-                assertTrue(bigramSet.contains(bigram));
-                bigramSet.remove(bigram);
+            if (wordProperty.mHasNgrams) {
+                for (final WeightedString bigramTarget : wordProperty.getBigrams()) {
+                    final String word1 = bigramTarget.mWord;
+                    final Pair<String, String> bigram = new Pair<>(word0, word1);
+                    assertTrue(bigramSet.contains(bigram));
+                    bigramSet.remove(bigram);
+                }
             }
             token = result.mNextToken;
         } while (token != 0);