Implement dictionary flush.

Bug: 6669677
Change-Id: I1d70ac6319fb6d8700074de382568c2108887960

1 files changed, 50 insertions, 1 deletions

diff --git a/tests/src/com/android/inputmethod/latin/BinaryDictionaryTests.java b/tests/src/com/android/inputmethod/latin/BinaryDictionaryTests.java
index 4d231cde7..11d623e32 100644
--- a/tests/src/com/android/inputmethod/latin/BinaryDictionaryTests.java
+++ b/tests/src/com/android/inputmethod/latin/BinaryDictionaryTests.java
@@ -263,7 +263,6 @@ public class BinaryDictionaryTests extends AndroidTestCase {
         BinaryDictionary binaryDictionary = new BinaryDictionary(dictFile.getAbsolutePath(),
                 0 /* offset */, dictFile.length(), true /* useFullEditDistance */,
                 Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
-
         final int unigramProbability = 100;
         final int bigramProbability = 10;
         binaryDictionary.addUnigramWord("aaa", unigramProbability);
@@ -299,4 +298,54 @@ public class BinaryDictionaryTests extends AndroidTestCase {
 
         dictFile.delete();
     }
+
+    public void testFlushDictionary() {
+        File dictFile = null;
+        try {
+            dictFile = createEmptyDictionaryAndGetFile("TestBinaryDictionary");
+        } catch (IOException e) {
+            fail("IOException while writing an initial dictionary : " + e);
+        } catch (UnsupportedFormatException e) {
+            fail("UnsupportedFormatException while writing an initial dictionary : " + e);
+        }
+        BinaryDictionary binaryDictionary = new BinaryDictionary(dictFile.getAbsolutePath(),
+                0 /* offset */, dictFile.length(), true /* useFullEditDistance */,
+                Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
+
+        final int probability = 100;
+        binaryDictionary.addUnigramWord("aaa", probability);
+        binaryDictionary.addUnigramWord("abcd", probability);
+        // Close without flushing.
+        binaryDictionary.close();
+
+        binaryDictionary = new BinaryDictionary(dictFile.getAbsolutePath(),
+                0 /* offset */, dictFile.length(), true /* useFullEditDistance */,
+                Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
+
+        assertEquals(-1, binaryDictionary.getFrequency("aaa"));
+        assertEquals(-1, binaryDictionary.getFrequency("abcd"));
+
+        binaryDictionary.addUnigramWord("aaa", probability);
+        binaryDictionary.addUnigramWord("abcd", probability);
+        binaryDictionary.flush();
+        binaryDictionary.close();
+
+        binaryDictionary = new BinaryDictionary(dictFile.getAbsolutePath(),
+                0 /* offset */, dictFile.length(), true /* useFullEditDistance */,
+                Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
+
+        assertEquals(probability, binaryDictionary.getFrequency("aaa"));
+        assertEquals(probability, binaryDictionary.getFrequency("abcd"));
+        binaryDictionary.addUnigramWord("bcde", probability);
+        binaryDictionary.flush();
+        binaryDictionary.close();
+
+        binaryDictionary = new BinaryDictionary(dictFile.getAbsolutePath(),
+                0 /* offset */, dictFile.length(), true /* useFullEditDistance */,
+                Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
+        assertEquals(probability, binaryDictionary.getFrequency("bcde"));
+        binaryDictionary.close();
+
+        dictFile.delete();
+    }
 }