Dictionary migration in Java side.

Bug: 13406708

Change-Id: If83938e4b4810d2e8353c70cdd8ef3ea97a29571

1 files changed, 92 insertions, 0 deletions

diff --git a/tests/src/com/android/inputmethod/latin/utils/BinaryDictionaryUtilsTests.java b/tests/src/com/android/inputmethod/latin/utils/BinaryDictionaryUtilsTests.java
new file mode 100644
index 000000000..d86639101
--- /dev/null
+++ b/tests/src/com/android/inputmethod/latin/utils/BinaryDictionaryUtilsTests.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.utils;
+
+import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import com.android.inputmethod.latin.BinaryDictionary;
+import com.android.inputmethod.latin.makedict.DictionaryHeader;
+import com.android.inputmethod.latin.makedict.FormatSpec;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+@LargeTest
+public class BinaryDictionaryUtilsTests extends AndroidTestCase {
+    private static final String TEST_DICT_FILE_EXTENSION = ".testDict";
+    private static final String TEST_LOCALE = "test";
+
+    private File createEmptyDictionaryAndGetFile(final String dictId,
+            final int formatVersion) throws IOException {
+        if (formatVersion == FormatSpec.VERSION4) {
+            return createEmptyVer4DictionaryAndGetFile(dictId);
+        } else {
+            throw new IOException("Dictionary format version " + formatVersion
+                    + " is not supported.");
+        }
+    }
+
+    private File createEmptyVer4DictionaryAndGetFile(final String dictId) throws IOException {
+        final File file = getDictFile(dictId);
+        FileUtils.deleteRecursively(file);
+        Map<String, String> attributeMap = new HashMap<String, String>();
+        attributeMap.put(DictionaryHeader.DICTIONARY_ID_KEY, dictId);
+        attributeMap.put(DictionaryHeader.DICTIONARY_VERSION_KEY,
+                String.valueOf(TimeUnit.MILLISECONDS.toSeconds(System.currentTimeMillis())));
+        attributeMap.put(DictionaryHeader.USES_FORGETTING_CURVE_KEY,
+                DictionaryHeader.ATTRIBUTE_VALUE_TRUE);
+        attributeMap.put(DictionaryHeader.HAS_HISTORICAL_INFO_KEY,
+                DictionaryHeader.ATTRIBUTE_VALUE_TRUE);
+        if (BinaryDictionaryUtils.createEmptyDictFile(file.getAbsolutePath(), FormatSpec.VERSION4,
+                LocaleUtils.constructLocaleFromString(TEST_LOCALE), attributeMap)) {
+            return file;
+        } else {
+            throw new IOException("Empty dictionary " + file.getAbsolutePath()
+                    + " cannot be created.");
+        }
+    }
+
+    private File getDictFile(final String dictId) {
+        return new File(getContext().getCacheDir(), dictId + TEST_DICT_FILE_EXTENSION);
+    }
+
+    public void testRenameDictionary() {
+        final int formatVersion = FormatSpec.VERSION4;
+        File dictFile0 = null;
+        try {
+            dictFile0 = createEmptyDictionaryAndGetFile("MoveFromDictionary", formatVersion);
+        } catch (IOException e) {
+            fail("IOException while writing an initial dictionary : " + e);
+        }
+        final File dictFile1 = getDictFile("MoveToDictionary");
+        FileUtils.deleteRecursively(dictFile1);
+        assertTrue(BinaryDictionaryUtils.renameDict(dictFile0, dictFile1));
+        assertFalse(dictFile0.exists());
+        assertTrue(dictFile1.exists());
+        BinaryDictionary binaryDictionary = new BinaryDictionary(dictFile1.getAbsolutePath(),
+                0 /* offset */, dictFile1.length(), true /* useFullEditDistance */,
+                Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
+        assertTrue(binaryDictionary.isValidDictionary());
+        assertTrue(binaryDictionary.getFormatVersion() == formatVersion);
+        binaryDictionary.close();
+    }
+}