Rename to Kelar Keyboard (org.kelar.inputmethod.latin)

1 files changed, 786 insertions, 0 deletions

diff --git a/tests/src/org/kelar/inputmethod/latin/InputLogicTests.java b/tests/src/org/kelar/inputmethod/latin/InputLogicTests.java
new file mode 100644
index 000000000..689ee88bb
--- /dev/null
+++ b/tests/src/org/kelar/inputmethod/latin/InputLogicTests.java
@@ -0,0 +1,786 @@
+/*
+ * 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 org.kelar.inputmethod.latin;
+
+import static android.test.MoreAsserts.assertNotEqual;
+
+import android.text.TextUtils;
+import android.view.inputmethod.BaseInputConnection;
+
+import androidx.test.filters.LargeTest;
+
+import org.kelar.inputmethod.latin.common.Constants;
+import org.kelar.inputmethod.latin.define.DecoderSpecificConstants;
+import org.kelar.inputmethod.latin.settings.Settings;
+
+@LargeTest
+public class InputLogicTests extends InputTestsBase {
+
+    private boolean mNextWordPrediction;
+
+    @Override
+    public void setUp() throws Exception {
+        super.setUp();
+        mNextWordPrediction = getBooleanPreference(Settings.PREF_BIGRAM_PREDICTIONS, true);
+    }
+
+    @Override
+    public void tearDown() throws Exception {
+        setBooleanPreference(Settings.PREF_BIGRAM_PREDICTIONS, mNextWordPrediction, true);
+        super.tearDown();
+    }
+
+    public void testTypeWord() {
+        final String WORD_TO_TYPE = "abcd";
+        type(WORD_TO_TYPE);
+        assertEquals("type word", WORD_TO_TYPE, mEditText.getText().toString());
+    }
+
+    public void testPickSuggestionThenBackspace() {
+        final String WORD_TO_TYPE = "this";
+        final String EXPECTED_RESULT = "thi";
+        type(WORD_TO_TYPE);
+        pickSuggestionManually(WORD_TO_TYPE);
+        sendUpdateForCursorMoveTo(WORD_TO_TYPE.length());
+        type(Constants.CODE_DELETE);
+        assertEquals("press suggestion then backspace", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testPickAutoCorrectionThenBackspace() {
+        final String WORD_TO_TYPE = "tgis";
+        final String WORD_TO_PICK = "this";
+        final String EXPECTED_RESULT = "thi";
+        type(WORD_TO_TYPE);
+        // Choose the auto-correction. For "tgis", the auto-correction should be "this".
+        pickSuggestionManually(WORD_TO_PICK);
+        sendUpdateForCursorMoveTo(WORD_TO_TYPE.length());
+        assertEquals("pick typed word over auto-correction then backspace", WORD_TO_PICK,
+                mEditText.getText().toString());
+        type(Constants.CODE_DELETE);
+        assertEquals("pick typed word over auto-correction then backspace", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testPickTypedWordOverAutoCorrectionThenBackspace() {
+        final String WORD_TO_TYPE = "tgis";
+        final String EXPECTED_RESULT = "tgi";
+        type(WORD_TO_TYPE);
+        // Choose the typed word.
+        pickSuggestionManually(WORD_TO_TYPE);
+        sendUpdateForCursorMoveTo(WORD_TO_TYPE.length());
+        assertEquals("pick typed word over auto-correction then backspace", WORD_TO_TYPE,
+                mEditText.getText().toString());
+        type(Constants.CODE_DELETE);
+        assertEquals("pick typed word over auto-correction then backspace", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testPickDifferentSuggestionThenBackspace() {
+        final String WORD_TO_TYPE = "tgis";
+        final String WORD_TO_PICK = "thus";
+        final String EXPECTED_RESULT = "thu";
+        type(WORD_TO_TYPE);
+        // Choose the second suggestion, which should be "thus" when "tgis" is typed.
+        pickSuggestionManually(WORD_TO_PICK);
+        sendUpdateForCursorMoveTo(WORD_TO_TYPE.length());
+        assertEquals("pick different suggestion then backspace", WORD_TO_PICK,
+                mEditText.getText().toString());
+        type(Constants.CODE_DELETE);
+        assertEquals("pick different suggestion then backspace", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testDeleteSelection() {
+        final String STRING_TO_TYPE = "some text delete me some text";
+        final int typedLength = STRING_TO_TYPE.length();
+        final int SELECTION_START = 10;
+        final int SELECTION_END = 19;
+        final String EXPECTED_RESULT = "some text  some text";
+        type(STRING_TO_TYPE);
+        // Don't use the sendUpdateForCursorMove* family of methods here because they
+        // don't handle selections.
+        // Send once to simulate the cursor actually responding to the move caused by typing.
+        // This is necessary because LatinIME is bookkeeping to avoid confusing a real cursor
+        // move with a move triggered by LatinIME inputting stuff.
+        mLatinIME.onUpdateSelection(0, 0, typedLength, typedLength, -1, -1);
+        mInputConnection.setSelection(SELECTION_START, SELECTION_END);
+        // And now we simulate the user actually selecting some text.
+        mLatinIME.onUpdateSelection(typedLength, typedLength,
+                SELECTION_START, SELECTION_END, -1, -1);
+        type(Constants.CODE_DELETE);
+        assertEquals("delete selection", EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    public void testDeleteSelectionTwice() {
+        final String STRING_TO_TYPE = "some text delete me some text";
+        final int typedLength = STRING_TO_TYPE.length();
+        final int SELECTION_START = 10;
+        final int SELECTION_END = 19;
+        final String EXPECTED_RESULT = "some text some text";
+        type(STRING_TO_TYPE);
+        // Don't use the sendUpdateForCursorMove* family of methods here because they
+        // don't handle selections.
+        // Send once to simulate the cursor actually responding to the move caused by typing.
+        // This is necessary because LatinIME is bookkeeping to avoid confusing a real cursor
+        // move with a move triggered by LatinIME inputting stuff.
+        mLatinIME.onUpdateSelection(0, 0, typedLength, typedLength, -1, -1);
+        mInputConnection.setSelection(SELECTION_START, SELECTION_END);
+        // And now we simulate the user actually selecting some text.
+        mLatinIME.onUpdateSelection(typedLength, typedLength,
+                SELECTION_START, SELECTION_END, -1, -1);
+        type(Constants.CODE_DELETE);
+        type(Constants.CODE_DELETE);
+        assertEquals("delete selection twice", EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    public void testAutoCorrect() {
+        final String STRING_TO_TYPE = "tgis ";
+        final String EXPECTED_RESULT = "this ";
+        type(STRING_TO_TYPE);
+        assertEquals("simple auto-correct", EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    public void testAutoCorrectWithQuote() {
+        final String STRING_TO_TYPE = "didn' ";
+        final String EXPECTED_RESULT = "didn't ";
+        type(STRING_TO_TYPE);
+        assertEquals("auto-correct with quote", EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    public void testAutoCorrectWithPeriod() {
+        final String STRING_TO_TYPE = "tgis.";
+        final String EXPECTED_RESULT = "this.";
+        type(STRING_TO_TYPE);
+        assertEquals("auto-correct with period", EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    public void testAutoCorrectWithPeriodThenRevert() {
+        final String STRING_TO_TYPE = "tgis.";
+        final String EXPECTED_RESULT = "tgis.";
+        type(STRING_TO_TYPE);
+        sendUpdateForCursorMoveTo(STRING_TO_TYPE.length());
+        type(Constants.CODE_DELETE);
+        assertEquals("auto-correct with period then revert", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testAutoCorrectWithSpaceThenRevert() {
+        // Backspacing to cancel the "tgis"->"this" autocorrection should result in
+        // a "phantom space": if the user presses space immediately after,
+        // only one space will be inserted in total.
+        final String STRING_TO_TYPE = "tgis ";
+        final String EXPECTED_RESULT = "tgis";
+        type(STRING_TO_TYPE);
+        sendUpdateForCursorMoveTo(STRING_TO_TYPE.length());
+        type(Constants.CODE_DELETE);
+        assertEquals("auto-correct with space then revert", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testAutoCorrectWithSpaceThenRevertThenTypeMore() {
+        final String STRING_TO_TYPE_FIRST = "tgis ";
+        final String STRING_TO_TYPE_SECOND = "a";
+        final String EXPECTED_RESULT = "tgis a";
+        type(STRING_TO_TYPE_FIRST);
+        sendUpdateForCursorMoveTo(STRING_TO_TYPE_FIRST.length());
+        type(Constants.CODE_DELETE);
+
+        type(STRING_TO_TYPE_SECOND);
+        sendUpdateForCursorMoveTo(STRING_TO_TYPE_FIRST.length() - 1
+                + STRING_TO_TYPE_SECOND.length());
+        assertEquals("auto-correct with space then revert then type more", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testAutoCorrectToSelfDoesNotRevert() {
+        final String STRING_TO_TYPE = "this ";
+        final String EXPECTED_RESULT = "this";
+        type(STRING_TO_TYPE);
+        sendUpdateForCursorMoveTo(STRING_TO_TYPE.length());
+        type(Constants.CODE_DELETE);
+        assertEquals("auto-correct with space does not revert", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testDoubleSpace() {
+        // U+1F607 is an emoji
+        final String[] STRINGS_TO_TYPE =
+                new String[] { "this   ", "a+  ", "\u1F607  ", "..  ", ")  ", "(  ", "%  " };
+        final String[] EXPECTED_RESULTS =
+                new String[] { "this.  ", "a+. ", "\u1F607. ", "..  ", "). ", "(  ", "%. " };
+        verifyDoubleSpace(STRINGS_TO_TYPE, EXPECTED_RESULTS);
+    }
+
+    public void testDoubleSpaceHindi() {
+        changeLanguage("hi");
+        // U+1F607 is an emoji
+        final String[] STRINGS_TO_TYPE =
+                new String[] { "this   ", "a+  ", "\u1F607  ", "||  ", ")  ", "(  ", "%  " };
+        final String[] EXPECTED_RESULTS =
+                new String[] { "this|  ", "a+| ", "\u1F607| ", "||  ", ")| ", "(  ", "%| " };
+        verifyDoubleSpace(STRINGS_TO_TYPE, EXPECTED_RESULTS);
+    }
+
+    private void verifyDoubleSpace(String[] stringsToType, String[] expectedResults) {
+        // Set default pref just in case
+        setBooleanPreference(Settings.PREF_KEY_USE_DOUBLE_SPACE_PERIOD, true, true);
+        for (int i = 0; i < stringsToType.length; ++i) {
+            mEditText.setText("");
+            type(stringsToType[i]);
+            assertEquals("double space processing", expectedResults[i],
+                    mEditText.getText().toString());
+        }
+    }
+
+    public void testCancelDoubleSpaceEnglish() {
+        final String STRING_TO_TYPE = "this  ";
+        final String EXPECTED_RESULT = "this ";
+        type(STRING_TO_TYPE);
+        type(Constants.CODE_DELETE);
+        assertEquals("double space make a period", EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    public void testCancelDoubleSpaceHindi() {
+        changeLanguage("hi");
+        final String STRING_TO_TYPE = "this  ";
+        final String EXPECTED_RESULT = "this ";
+        type(STRING_TO_TYPE);
+        type(Constants.CODE_DELETE);
+        assertEquals("double space make a period", EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    private void testDoubleSpacePeriodWithSettings(final boolean expectsPeriod,
+            final Object... settingsKeysValues) {
+        final Object[] oldSettings = new Object[settingsKeysValues.length / 2];
+        final String STRING_WITHOUT_PERIOD = "this  ";
+        final String STRING_WITH_PERIOD = "this. ";
+        final String EXPECTED_RESULT = expectsPeriod ? STRING_WITH_PERIOD : STRING_WITHOUT_PERIOD;
+        try {
+            for (int i = 0; i < settingsKeysValues.length; i += 2) {
+                if (settingsKeysValues[i + 1] instanceof String) {
+                    oldSettings[i / 2] = setStringPreference((String)settingsKeysValues[i],
+                            (String)settingsKeysValues[i + 1], "0");
+                } else {
+                    oldSettings[i / 2] = setBooleanPreference((String)settingsKeysValues[i],
+                            (Boolean)settingsKeysValues[i + 1], false);
+                }
+            }
+            mLatinIME.loadSettings();
+            mEditText.setText("");
+            type(STRING_WITHOUT_PERIOD);
+            assertEquals("double-space-to-period with specific settings "
+                    + TextUtils.join(" ", settingsKeysValues),
+                    EXPECTED_RESULT, mEditText.getText().toString());
+        } finally {
+            // Restore old settings
+            for (int i = 0; i < settingsKeysValues.length; i += 2) {
+                if (null == oldSettings[i / 2]) {
+                    break;
+                } if (oldSettings[i / 2] instanceof String) {
+                    setStringPreference((String)settingsKeysValues[i], (String)oldSettings[i / 2],
+                            "");
+                } else {
+                    setBooleanPreference((String)settingsKeysValues[i], (Boolean)oldSettings[i / 2],
+                            false);
+                }
+            }
+        }
+    }
+
+    public void testDoubleSpacePeriod() {
+        // Reset settings to default, else these tests will go flaky.
+        setBooleanPreference(Settings.PREF_SHOW_SUGGESTIONS, true, true);
+        setBooleanPreference(Settings.PREF_AUTO_CORRECTION, true, true);
+        setBooleanPreference(Settings.PREF_KEY_USE_DOUBLE_SPACE_PERIOD, true, true);
+        testDoubleSpacePeriodWithSettings(true);
+        // "Suggestion visibility" to off
+        testDoubleSpacePeriodWithSettings(true, Settings.PREF_SHOW_SUGGESTIONS, false);
+        // "Suggestion visibility" to on
+        testDoubleSpacePeriodWithSettings(true, Settings.PREF_SHOW_SUGGESTIONS, true);
+
+        // "Double-space period" to "off"
+        testDoubleSpacePeriodWithSettings(false, Settings.PREF_KEY_USE_DOUBLE_SPACE_PERIOD, false);
+
+        // "Auto-correction" to "off"
+        testDoubleSpacePeriodWithSettings(true, Settings.PREF_AUTO_CORRECTION, false);
+        // "Auto-correction" to "on"
+        testDoubleSpacePeriodWithSettings(true, Settings.PREF_AUTO_CORRECTION, true);
+
+        // "Suggestion visibility" to "always hide" and "Auto-correction" to "off"
+        testDoubleSpacePeriodWithSettings(true, Settings.PREF_SHOW_SUGGESTIONS, false,
+                Settings.PREF_AUTO_CORRECTION, false);
+        // "Suggestion visibility" to "always hide" and "Auto-correction" to "off"
+        testDoubleSpacePeriodWithSettings(false, Settings.PREF_SHOW_SUGGESTIONS, false,
+                Settings.PREF_AUTO_CORRECTION, false,
+                Settings.PREF_KEY_USE_DOUBLE_SPACE_PERIOD, false);
+    }
+
+    public void testBackspaceAtStartAfterAutocorrect() {
+        final String STRING_TO_TYPE = "tgis ";
+        final int typedLength = STRING_TO_TYPE.length();
+        final String EXPECTED_RESULT = "this ";
+        final int NEW_CURSOR_POSITION = 0;
+        type(STRING_TO_TYPE);
+        sendUpdateForCursorMoveTo(typedLength);
+        mInputConnection.setSelection(NEW_CURSOR_POSITION, NEW_CURSOR_POSITION);
+        sendUpdateForCursorMoveTo(NEW_CURSOR_POSITION);
+        type(Constants.CODE_DELETE);
+        assertEquals("auto correct then move cursor to start of line then backspace",
+                EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    public void testAutoCorrectThenMoveCursorThenBackspace() {
+        final String STRING_TO_TYPE = "and tgis ";
+        final int typedLength = STRING_TO_TYPE.length();
+        final String EXPECTED_RESULT = "andthis ";
+        final int NEW_CURSOR_POSITION = STRING_TO_TYPE.indexOf('t');
+        type(STRING_TO_TYPE);
+        sendUpdateForCursorMoveTo(typedLength);
+        mInputConnection.setSelection(NEW_CURSOR_POSITION, NEW_CURSOR_POSITION);
+        sendUpdateForCursorMoveTo(NEW_CURSOR_POSITION);
+        type(Constants.CODE_DELETE);
+        assertEquals("auto correct then move cursor then backspace",
+                EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    public void testNoSpaceAfterManualPick() {
+        final String WORD_TO_TYPE = "this";
+        final String EXPECTED_RESULT = WORD_TO_TYPE;
+        type(WORD_TO_TYPE);
+        pickSuggestionManually(WORD_TO_TYPE);
+        assertEquals("no space after manual pick", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testManualPickThenType() {
+        final String WORD1_TO_TYPE = "this";
+        final String WORD2_TO_TYPE = "is";
+        final String EXPECTED_RESULT = "this is";
+        type(WORD1_TO_TYPE);
+        pickSuggestionManually(WORD1_TO_TYPE);
+        type(WORD2_TO_TYPE);
+        assertEquals("manual pick then type", EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    public void testManualPickThenSeparator() {
+        final String WORD1_TO_TYPE = "this";
+        final String WORD2_TO_TYPE = "!";
+        final String EXPECTED_RESULT = "this!";
+        type(WORD1_TO_TYPE);
+        pickSuggestionManually(WORD1_TO_TYPE);
+        type(WORD2_TO_TYPE);
+        assertEquals("manual pick then separator", EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    // This test matches testClusteringPunctuationForFrench.
+    // In some non-English languages, ! and ? are clustering punctuation signs.
+    public void testClusteringPunctuation() {
+        final String WORD1_TO_TYPE = "test";
+        final String WORD2_TO_TYPE = "!!?!:!";
+        final String EXPECTED_RESULT = "test!!?!:!";
+        type(WORD1_TO_TYPE);
+        pickSuggestionManually(WORD1_TO_TYPE);
+        type(WORD2_TO_TYPE);
+        assertEquals("clustering punctuation", EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    public void testManualPickThenStripperThenPick() {
+        final String WORD_TO_TYPE = "this";
+        final String STRIPPER = "\n";
+        final String EXPECTED_RESULT = "this\nthis";
+        type(WORD_TO_TYPE);
+        pickSuggestionManually(WORD_TO_TYPE);
+        type(STRIPPER);
+        type(WORD_TO_TYPE);
+        pickSuggestionManually(WORD_TO_TYPE);
+        assertEquals("manual pick then \\n then manual pick", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testManualPickThenSpaceThenType() {
+        final String WORD1_TO_TYPE = "this";
+        final String WORD2_TO_TYPE = " is";
+        final String EXPECTED_RESULT = "this is";
+        type(WORD1_TO_TYPE);
+        pickSuggestionManually(WORD1_TO_TYPE);
+        type(WORD2_TO_TYPE);
+        assertEquals("manual pick then space then type", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testManualPickThenManualPick() {
+        final String WORD1_TO_TYPE = "this";
+        final String WORD2_TO_PICK = "is";
+        final String EXPECTED_RESULT = "this is";
+        type(WORD1_TO_TYPE);
+        pickSuggestionManually(WORD1_TO_TYPE);
+        // Here we fake picking a word through bigram prediction.
+        pickSuggestionManually(WORD2_TO_PICK);
+        assertEquals("manual pick then manual pick", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testDeleteWholeComposingWord() {
+        final String WORD_TO_TYPE = "this";
+        type(WORD_TO_TYPE);
+        for (int i = 0; i < WORD_TO_TYPE.length(); ++i) {
+            type(Constants.CODE_DELETE);
+        }
+        assertEquals("delete whole composing word", "", mEditText.getText().toString());
+    }
+
+    public void testResumeSuggestionOnBackspace() {
+        final String STRING_TO_TYPE = "and this ";
+        final int typedLength = STRING_TO_TYPE.length();
+        type(STRING_TO_TYPE);
+        assertEquals("resume suggestion on backspace", -1,
+                BaseInputConnection.getComposingSpanStart(mEditText.getText()));
+        assertEquals("resume suggestion on backspace", -1,
+                BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
+        sendUpdateForCursorMoveTo(typedLength);
+        type(Constants.CODE_DELETE);
+        assertEquals("resume suggestion on backspace", 4,
+                BaseInputConnection.getComposingSpanStart(mEditText.getText()));
+        assertEquals("resume suggestion on backspace", 8,
+                BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
+    }
+
+    private void helperTestComposing(final String wordToType, final boolean shouldBeComposing) {
+        mEditText.setText("");
+        type(wordToType);
+        assertEquals("start composing inside text", shouldBeComposing ? 0 : -1,
+                BaseInputConnection.getComposingSpanStart(mEditText.getText()));
+        assertEquals("start composing inside text", shouldBeComposing ? wordToType.length() : -1,
+                BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
+    }
+
+    public void testStartComposing() {
+        // Should start composing on a letter
+        helperTestComposing("a", true);
+        type("  "); // To reset the composing state
+        // Should not start composing on quote
+        helperTestComposing("'", false);
+        type("  ");
+        helperTestComposing("'-", false);
+        type("  ");
+        // Should not start composing on dash
+        helperTestComposing("-", false);
+        type("  ");
+        helperTestComposing("-'", false);
+        type("  ");
+        helperTestComposing("a-", true);
+        type("  ");
+        helperTestComposing("a'", true);
+    }
+
+    // TODO: Add some tests for non-BMP characters
+
+    public void testAutoCorrectByUserHistory() {
+        type("qpmz");
+        type(Constants.CODE_SPACE);
+
+        int startIndex = mEditText.getText().length();
+        type("qpmx");
+        type(Constants.CODE_SPACE);
+        int endIndex = mEditText.getText().length();
+        assertEquals("auto-corrected by user history",
+                "qpmz ", mEditText.getText().subSequence(startIndex, endIndex).toString());
+    }
+
+    public void testPredictionsAfterSpace() {
+        final String WORD_TO_TYPE = "Barack ";
+        type(WORD_TO_TYPE);
+        sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
+        runMessages();
+        // Test the first prediction is displayed
+        final SuggestedWords suggestedWords = mLatinIME.getSuggestedWordsForTest();
+        assertEquals("predictions after space", "Obama",
+                suggestedWords.size() > 0 ? suggestedWords.getWord(0) : null);
+    }
+
+    public void testPredictionsWithDoubleSpaceToPeriod() {
+        mLatinIME.clearPersonalizedDictionariesForTest();
+        final String WORD_TO_TYPE = "Barack  ";
+        type(WORD_TO_TYPE);
+        sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
+        runMessages();
+
+        type(Constants.CODE_DELETE);
+        sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
+        runMessages();
+
+        SuggestedWords suggestedWords = mLatinIME.getSuggestedWordsForTest();
+        suggestedWords = mLatinIME.getSuggestedWordsForTest();
+        assertEquals("predictions after cancel double-space-to-period", "Obama",
+                mLatinIME.getSuggestedWordsForTest().getWord(0));
+    }
+
+    public void testPredictionsAfterManualPick() {
+        final String WORD_TO_TYPE = "Barack";
+        type(WORD_TO_TYPE);
+        // Choose the auto-correction. For "Barack", the auto-correction should be "Barack".
+        pickSuggestionManually(WORD_TO_TYPE);
+        sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
+        runMessages();
+        // Test the first prediction is displayed
+        final SuggestedWords suggestedWords = mLatinIME.getSuggestedWordsForTest();
+        assertEquals("predictions after manual pick", "Obama",
+                suggestedWords.size() > 0 ? suggestedWords.getWord(0) : null);
+    }
+
+    public void testPredictionsAfterPeriod() {
+        mLatinIME.clearPersonalizedDictionariesForTest();
+        final String WORD_TO_TYPE = "Barack. ";
+        type(WORD_TO_TYPE);
+        sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
+        runMessages();
+
+        SuggestedWords suggestedWords = mLatinIME.getSuggestedWordsForTest();
+        assertFalse(mLatinIME.getSuggestedWordsForTest().isEmpty());
+    }
+
+    public void testPredictionsAfterRecorrection() {
+        final String PREFIX = "A ";
+        final String WORD_TO_TYPE = "Barack";
+        final String FIRST_NON_TYPED_SUGGESTION = "Barrack";
+        final int endOfPrefix = PREFIX.length();
+        final int endOfWord = endOfPrefix + WORD_TO_TYPE.length();
+        final int endOfSuggestion = endOfPrefix + FIRST_NON_TYPED_SUGGESTION.length();
+        final int indexForManualCursor = endOfPrefix + 3; // +3 because it's after "Bar" in "Barack"
+        type(PREFIX);
+        sendUpdateForCursorMoveTo(endOfPrefix);
+        type(WORD_TO_TYPE);
+        pickSuggestionManually(FIRST_NON_TYPED_SUGGESTION);
+        sendUpdateForCursorMoveTo(endOfSuggestion);
+        runMessages();
+        type(" ");
+        sendUpdateForCursorMoveBy(1);
+        sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
+        runMessages();
+        // Simulate a manual cursor move
+        mInputConnection.setSelection(indexForManualCursor, indexForManualCursor);
+        sendUpdateForCursorMoveTo(indexForManualCursor);
+        sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
+        runMessages();
+        pickSuggestionManually(WORD_TO_TYPE);
+        sendUpdateForCursorMoveTo(endOfWord);
+        sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
+        runMessages();
+        // Test the first prediction is displayed
+        final SuggestedWords suggestedWords = mLatinIME.getSuggestedWordsForTest();
+        assertEquals("predictions after recorrection", "Obama",
+                suggestedWords.size() > 0 ? suggestedWords.getWord(0) : null);
+    }
+
+    public void testComposingMultipleBackspace() {
+        final String WORD_TO_TYPE = "radklro";
+        final int TIMES_TO_TYPE = 3;
+        final int TIMES_TO_BACKSPACE = 8;
+        type(WORD_TO_TYPE);
+        type(Constants.CODE_DELETE);
+        type(Constants.CODE_DELETE);
+        type(Constants.CODE_DELETE);
+        type(WORD_TO_TYPE);
+        type(Constants.CODE_DELETE);
+        type(Constants.CODE_DELETE);
+        type(WORD_TO_TYPE);
+        type(Constants.CODE_DELETE);
+        type(Constants.CODE_DELETE);
+        type(Constants.CODE_DELETE);
+        assertEquals("composing with multiple backspace",
+                WORD_TO_TYPE.length() * TIMES_TO_TYPE - TIMES_TO_BACKSPACE,
+                mEditText.getText().length());
+    }
+
+    public void testManySingleQuotes() {
+        final String WORD_TO_AUTOCORRECT = "i";
+        final String WORD_AUTOCORRECTED = "I";
+        final String QUOTES = "''''''''''''''''''''";
+        final String WORD_TO_TYPE = WORD_TO_AUTOCORRECT + QUOTES + " ";
+        final String EXPECTED_RESULT = WORD_AUTOCORRECTED + QUOTES + " ";
+        type(WORD_TO_TYPE);
+        assertEquals("auto-correct with many trailing single quotes", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testManySingleQuotesOneByOne() {
+        final String WORD_TO_AUTOCORRECT = "i";
+        final String WORD_AUTOCORRECTED = "I";
+        final String QUOTES = "''''''''''''''''''''";
+        final String WORD_TO_TYPE = WORD_TO_AUTOCORRECT + QUOTES + " ";
+        final String EXPECTED_RESULT = WORD_AUTOCORRECTED + QUOTES + " ";
+
+        for (int i = 0; i < WORD_TO_TYPE.length(); ++i) {
+            type(WORD_TO_TYPE.substring(i, i+1));
+            sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
+            runMessages();
+        }
+        assertEquals("type many trailing single quotes one by one", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testTypingSingleQuotesOneByOne() {
+        final String WORD_TO_TYPE = "it's ";
+        final String EXPECTED_RESULT = WORD_TO_TYPE;
+        for (int i = 0; i < WORD_TO_TYPE.length(); ++i) {
+            type(WORD_TO_TYPE.substring(i, i+1));
+            sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
+            runMessages();
+        }
+        assertEquals("type words letter by letter", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testBasicGesture() {
+        gesture("this");
+        assertEquals("this", mEditText.getText().toString());
+    }
+
+    public void testGestureGesture() {
+        gesture("got");
+        gesture("milk");
+        assertEquals("got milk", mEditText.getText().toString());
+    }
+
+    public void testGestureBackspaceGestureAgain() {
+        gesture("this");
+        type(Constants.CODE_DELETE);
+        assertEquals("gesture then backspace", "", mEditText.getText().toString());
+        gesture("this");
+        if (DecoderSpecificConstants.SHOULD_REMOVE_PREVIOUSLY_REJECTED_SUGGESTION) {
+            assertNotEqual("this", mEditText.getText().toString());
+        } else {
+            assertEquals("this", mEditText.getText().toString());
+        }
+    }
+
+    private void typeOrGestureWordAndPutCursorInside(final boolean gesture, final String word,
+            final int startPos) {
+        final int END_OF_WORD = startPos + word.length();
+        final int NEW_CURSOR_POSITION = startPos + word.length() / 2;
+        if (gesture) {
+            gesture(word);
+        } else {
+            type(word);
+        }
+        sendUpdateForCursorMoveTo(END_OF_WORD);
+        runMessages();
+        sendUpdateForCursorMoveTo(NEW_CURSOR_POSITION);
+        sleep(DELAY_TO_WAIT_FOR_UNDERLINE_MILLIS);
+        runMessages();
+    }
+
+    private void typeWordAndPutCursorInside(final String word, final int startPos) {
+        typeOrGestureWordAndPutCursorInside(false /* gesture */, word, startPos);
+    }
+
+    private void gestureWordAndPutCursorInside(final String word, final int startPos) {
+        typeOrGestureWordAndPutCursorInside(true /* gesture */, word, startPos);
+    }
+
+    private void ensureComposingSpanPos(final String message, final int from, final int to) {
+        assertEquals(message, from, BaseInputConnection.getComposingSpanStart(mEditText.getText()));
+        assertEquals(message, to, BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
+    }
+
+    public void testTypeWithinComposing() {
+        final String WORD_TO_TYPE = "something";
+        final String EXPECTED_RESULT = "some thing";
+        typeWordAndPutCursorInside(WORD_TO_TYPE, 0 /* startPos */);
+        type(" ");
+        ensureComposingSpanPos("space while in the middle of a word cancels composition", -1, -1);
+        assertEquals("space in the middle of a composing word", EXPECTED_RESULT,
+                mEditText.getText().toString());
+        int cursorPos = sendUpdateForCursorMoveToEndOfLine();
+        runMessages();
+        type(" ");
+        assertEquals("mbo", "some thing ", mEditText.getText().toString());
+        typeWordAndPutCursorInside(WORD_TO_TYPE, cursorPos + 1 /* startPos */);
+        type(Constants.CODE_DELETE);
+        ensureComposingSpanPos("delete while in the middle of a word cancels composition", -1, -1);
+    }
+
+    public void testTypeWithinGestureComposing() {
+        final String WORD_TO_TYPE = "something";
+        final String EXPECTED_RESULT = "some thing";
+        gestureWordAndPutCursorInside(WORD_TO_TYPE, 0 /* startPos */);
+        type(" ");
+        ensureComposingSpanPos("space while in the middle of a word cancels composition", -1, -1);
+        assertEquals("space in the middle of a composing word", EXPECTED_RESULT,
+                mEditText.getText().toString());
+        int cursorPos = sendUpdateForCursorMoveToEndOfLine();
+        runMessages();
+        type(" ");
+        typeWordAndPutCursorInside(WORD_TO_TYPE, cursorPos + 1 /* startPos */);
+        type(Constants.CODE_DELETE);
+        sleep(DELAY_TO_WAIT_FOR_UNDERLINE_MILLIS);
+        ensureComposingSpanPos("delete while in the middle of a word cancels composition", -1, -1);
+    }
+
+    public void testManualPickThenSeparatorForFrench() {
+        final String WORD1_TO_TYPE = "test";
+        final String WORD2_TO_TYPE = "!";
+        final String EXPECTED_RESULT = "test !";
+        changeLanguage("fr");
+        type(WORD1_TO_TYPE);
+        pickSuggestionManually(WORD1_TO_TYPE);
+        type(WORD2_TO_TYPE);
+        assertEquals("manual pick then separator for French", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testClusteringPunctuationForFrench() {
+        final String WORD1_TO_TYPE = "test";
+        final String WORD2_TO_TYPE = "!!?!:!";
+        // In English, the expected result would be "test!!?!:!"
+        final String EXPECTED_RESULT = "test !!?! : !";
+        changeLanguage("fr");
+        type(WORD1_TO_TYPE);
+        pickSuggestionManually(WORD1_TO_TYPE);
+        type(WORD2_TO_TYPE);
+        assertEquals("clustering punctuation for French", EXPECTED_RESULT,
+                mEditText.getText().toString());
+    }
+
+    public void testWordThenSpaceThenPunctuationFromStripTwice() {
+        setBooleanPreference(Settings.PREF_BIGRAM_PREDICTIONS, false, true);
+
+        final String WORD_TO_TYPE = "test ";
+        final String PUNCTUATION_FROM_STRIP = "!";
+        final String EXPECTED_RESULT = "test!! ";
+        type(WORD_TO_TYPE);
+        sleep(DELAY_TO_WAIT_FOR_UNDERLINE_MILLIS);
+        runMessages();
+        assertTrue("type word then type space should display punctuation strip",
+                mLatinIME.getSuggestedWordsForTest().isPunctuationSuggestions());
+        pickSuggestionManually(PUNCTUATION_FROM_STRIP);
+        pickSuggestionManually(PUNCTUATION_FROM_STRIP);
+        assertEquals(EXPECTED_RESULT, mEditText.getText().toString());
+    }
+
+    public void testWordThenSpaceDisplaysPredictions() {
+        final String WORD_TO_TYPE = "Barack ";
+        final String EXPECTED_RESULT = "Obama";
+        type(WORD_TO_TYPE);
+        sleep(DELAY_TO_WAIT_FOR_UNDERLINE_MILLIS);
+        runMessages();
+        final SuggestedWords suggestedWords = mLatinIME.getSuggestedWordsForTest();
+        assertEquals("type word then type space yields predictions for French",
+                EXPECTED_RESULT, suggestedWords.size() > 0 ? suggestedWords.getWord(0) : null);
+    }
+}