Add a first test for the spell checker

Bug: 6981919
Change-Id: Idd34150cec70e71bde652428f1631693bbc4a9ff

tests/src/com/android/inputmethod/latin/InputTestsBase.java

@@ -51,7 +51,7 @@ public class InputTestsBase extends ServiceTestCase<LatinIME> {
 
     protected LatinIME mLatinIME;
     protected Keyboard mKeyboard;
-    protected TextView mTextView;
+    protected MyTextView mTextView;
     protected InputConnection mInputConnection;
     private final HashMap<String, InputMethodSubtype> mSubtypeMap =
             new HashMap<String, InputMethodSubtype>();
@@ -86,6 +86,19 @@ public class InputTestsBase extends ServiceTestCase<LatinIME> {
             return (mSpan instanceof SuggestionSpan) &&
                     0 != (SuggestionSpan.FLAG_AUTO_CORRECTION & ((SuggestionSpan)mSpan).getFlags());
         }
+        public String[] getSuggestions() {
+            return ((SuggestionSpan)mSpan).getSuggestions();
+        }
+    }
+
+    // A helper class to increase control over the TextView
+    public static class MyTextView extends TextView {
+        public MyTextView(final Context c) {
+            super(c);
+        }
+        public void onAttachedToWindow() {
+            super.onAttachedToWindow();
+        }
     }
 
     public InputTestsBase() {
@@ -112,7 +125,7 @@ public class InputTestsBase extends ServiceTestCase<LatinIME> {
     @Override
     protected void setUp() throws Exception {
         super.setUp();
-        mTextView = new TextView(getContext());
+        mTextView = new MyTextView(getContext());
         mTextView.setInputType(InputType.TYPE_CLASS_TEXT);
         mTextView.setEnabled(true);
         setupService();

tests/src/com/android/inputmethod/latin/spellcheck/AndroidSpellCheckerServiceTest.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2012 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.spellcheck;
+
+import android.text.SpannableStringBuilder;
+import android.text.style.CharacterStyle;
+import android.text.style.SuggestionSpan;
+
+import com.android.inputmethod.latin.InputTestsBase;
+
+public class AndroidSpellCheckerServiceTest extends InputTestsBase {
+    public void testSpellchecker() {
+        mTextView.onAttachedToWindow();
+        mTextView.setText("tgis");
+        type(" ");
+        sleep(1000);
+        runMessages();
+        sleep(1000);
+
+        final SpanGetter span = new SpanGetter(mTextView.getText(), SuggestionSpan.class);
+        // If no span, the following will crash
+        final String[] suggestions = span.getSuggestions();
+        // For this test we consider "tgis" should yield at least 2 suggestions (at this moment
+        // it yields 5).
+        assertTrue(suggestions.length >= 2);
+        // We also assume the top suggestion should be "this".
+        assertEquals("", "this", suggestions[0]);
+    }
+}