1 files changed, 112 insertions, 0 deletions
diff --git a/tests/src/com/android/inputmethod/latin/UserBigramSuggestTests.java b/tests/src/com/android/inputmethod/latin/UserBigramSuggestTests.java
new file mode 100644
index 000000000..ab5329cfd
--- /dev/null
+++ b/tests/src/com/android/inputmethod/latin/UserBigramSuggestTests.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2010,2011 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;
+import com.android.inputmethod.latin.tests.R;
+
+import android.content.res.AssetFileDescriptor;
+
+import java.util.Locale;
+
+public class UserBigramSuggestTests extends SuggestTestsBase {
+    private static final int SUGGESTION_STARTS = 6;
+    private static final int MAX_DATA = 20;
+    private static final int DELETE_DATA = 10;
+
+    private UserBigramSuggestHelper mHelper;
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        final AssetFileDescriptor dict = openTestRawResourceFd(R.raw.test);
+        mHelper = new UserBigramSuggestHelper(
+                getContext(), mTestPackageFile, dict.getStartOffset(), dict.getLength(),
+                MAX_DATA, DELETE_DATA, US_KEYBOARD_ID);
+    }
+
+    /************************** Tests ************************/
+
+    /**
+     * Test suggestion started at right time
+     */
+    public void testUserBigram() {
+        for (int i = 0; i < SUGGESTION_STARTS; i++) mHelper.addToUserBigram(pair1);
+        for (int i = 0; i < (SUGGESTION_STARTS - 1); i++) mHelper.addToUserBigram(pair2);
+
+        isInSuggestions("bigram", mHelper.searchUserBigramSuggestion("user", 'b', "bigram"));
+        isNotInSuggestions("platform",
+                mHelper.searchUserBigramSuggestion("android", 'p', "platform"));
+    }
+
+    /**
+     * Test loading correct (locale) bigrams
+     */
+    public void testOpenAndClose() {
+        for (int i = 0; i < SUGGESTION_STARTS; i++) mHelper.addToUserBigram(pair1);
+        isInSuggestions("bigram in default locale",
+                mHelper.searchUserBigramSuggestion("user", 'b', "bigram"));
+
+        // change to fr_FR
+        mHelper.changeUserBigramLocale(Locale.FRANCE);
+        for (int i = 0; i < SUGGESTION_STARTS; i++) mHelper.addToUserBigram(pair3);
+        isInSuggestions("france in fr_FR",
+                mHelper.searchUserBigramSuggestion("locale", 'f', "france"));
+        isNotInSuggestions("bigram in fr_FR",
+                mHelper.searchUserBigramSuggestion("user", 'b', "bigram"));
+
+        // change back to en_US
+        mHelper.changeUserBigramLocale(Locale.US);
+        isNotInSuggestions("france in en_US",
+                mHelper.searchUserBigramSuggestion("locale", 'f', "france"));
+        isInSuggestions("bigram in en_US",
+                mHelper.searchUserBigramSuggestion("user", 'b', "bigram"));
+    }
+
+    /**
+     * Test data gets pruned when it is over maximum
+     */
+    public void testPruningData() {
+        for (int i = 0; i < SUGGESTION_STARTS; i++) mHelper.addToUserBigram(sentence0);
+        mHelper.flushUserBigrams();
+        isInSuggestions("world after several sentence 0",
+                mHelper.searchUserBigramSuggestion("Hello", 'w', "world"));
+
+        mHelper.addToUserBigram(sentence1);
+        mHelper.addToUserBigram(sentence2);
+        isInSuggestions("world after sentence 1 and 2",
+                mHelper.searchUserBigramSuggestion("Hello", 'w', "world"));
+
+        // pruning should happen
+        mHelper.addToUserBigram(sentence3);
+        mHelper.addToUserBigram(sentence4);
+
+        // trying to reopen database to check pruning happened in database
+        mHelper.changeUserBigramLocale(Locale.US);
+        isNotInSuggestions("world after sentence 3 and 4",
+                mHelper.searchUserBigramSuggestion("Hello", 'w', "world"));
+    }
+
+    private static final String[] pair1 = {"user", "bigram"};
+    private static final String[] pair2 = {"android","platform"};
+    private static final String[] pair3 = {"locale", "france"};
+    private static final String sentence0 = "Hello world";
+    private static final String sentence1 = "This is a test for user input based bigram";
+    private static final String sentence2 = "It learns phrases that contain both dictionary and "
+        + "nondictionary words";
+    private static final String sentence3 = "This should give better suggestions than the previous "
+        + "version";
+    private static final String sentence4 = "Android stock keyboard is improving";
+}