224 lines
11 KiB
Java
224 lines
11 KiB
Java
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.compat;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertNotNull;
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import static org.junit.Assert.assertTrue;
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import android.graphics.Typeface;
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import android.os.Build;
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import android.support.test.filters.SmallTest;
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import android.support.test.runner.AndroidJUnit4;
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import android.text.SpannableString;
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import android.text.Spanned;
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import android.text.style.StyleSpan;
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import java.util.Locale;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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@SmallTest
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@RunWith(AndroidJUnit4.class)
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public class LocaleSpanCompatUtilsTests {
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@Test
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public void testInstantiatable() {
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
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// LocaleSpan isn't yet available.
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return;
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}
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assertTrue(LocaleSpanCompatUtils.isLocaleSpanAvailable());
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final Object japaneseLocaleSpan = LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE);
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assertNotNull(japaneseLocaleSpan);
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assertEquals(Locale.JAPANESE,
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LocaleSpanCompatUtils.getLocaleFromLocaleSpan(japaneseLocaleSpan));
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}
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private static void assertLocaleSpan(final Spanned spanned, final int index,
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final int expectedStart, final int expectedEnd,
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final Locale expectedLocale, final int expectedSpanFlags) {
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final Object span = spanned.getSpans(0, spanned.length(), Object.class)[index];
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assertEquals(expectedLocale, LocaleSpanCompatUtils.getLocaleFromLocaleSpan(span));
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assertEquals(expectedStart, spanned.getSpanStart(span));
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assertEquals(expectedEnd, spanned.getSpanEnd(span));
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assertEquals(expectedSpanFlags, spanned.getSpanFlags(span));
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}
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private static void assertSpanEquals(final Object expectedSpan, final Spanned spanned,
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final int index) {
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final Object[] spans = spanned.getSpans(0, spanned.length(), Object.class);
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assertEquals(expectedSpan, spans[index]);
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}
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private static void assertSpanCount(final int expectedCount, final Spanned spanned) {
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final Object[] spans = spanned.getSpans(0, spanned.length(), Object.class);
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assertEquals(expectedCount, spans.length);
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}
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@Test
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public void testUpdateLocaleSpan() {
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if (!LocaleSpanCompatUtils.isLocaleSpanAvailable()) {
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return;
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}
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// Test if the simplest case works.
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{
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final SpannableString text = new SpannableString("0123456789");
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LocaleSpanCompatUtils.updateLocaleSpan(text, 1, 5, Locale.JAPANESE);
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assertSpanCount(1, text);
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assertLocaleSpan(text, 0, 1, 5, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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// Test if only LocaleSpans are updated.
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{
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final SpannableString text = new SpannableString("0123456789");
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final StyleSpan styleSpan = new StyleSpan(Typeface.BOLD);
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text.setSpan(styleSpan, 0, 7, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 1, 5, Locale.JAPANESE);
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assertSpanCount(2, text);
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assertSpanEquals(styleSpan, text, 0);
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assertLocaleSpan(text, 1, 1, 5, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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// Test if two jointed spans are merged into one span.
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{
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final SpannableString text = new SpannableString("0123456789");
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 3,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 3, 5, Locale.JAPANESE);
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assertSpanCount(1, text);
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assertLocaleSpan(text, 0, 1, 5, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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// Test if two overlapped spans are merged into one span.
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{
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final SpannableString text = new SpannableString("0123456789");
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 4,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 3, 5, Locale.JAPANESE);
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assertSpanCount(1, text);
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assertLocaleSpan(text, 0, 1, 5, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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// Test if three overlapped spans are merged into one span.
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{
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final SpannableString text = new SpannableString("0123456789");
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 4,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 5, 6,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 2, 8, Locale.JAPANESE);
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assertSpanCount(1, text);
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assertLocaleSpan(text, 0, 1, 8, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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// Test if disjoint spans remain disjoint.
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{
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final SpannableString text = new SpannableString("0123456789");
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 3,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 5, 6,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 8, 9, Locale.JAPANESE);
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assertSpanCount(3, text);
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assertLocaleSpan(text, 0, 1, 3, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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assertLocaleSpan(text, 1, 5, 6, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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assertLocaleSpan(text, 2, 8, 9, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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// Test if existing span flags are preserved during merge.
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{
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final SpannableString text = new SpannableString("0123456789");
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 5,
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Spanned.SPAN_INCLUSIVE_INCLUSIVE | Spanned.SPAN_INTERMEDIATE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 3, 4, Locale.JAPANESE);
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assertSpanCount(1, text);
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assertLocaleSpan(text, 0, 1, 5, Locale.JAPANESE,
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Spanned.SPAN_INCLUSIVE_INCLUSIVE | Spanned.SPAN_INTERMEDIATE);
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}
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// Test if existing span flags are preserved even when partially overlapped (leading edge).
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{
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final SpannableString text = new SpannableString("0123456789");
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 5,
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Spanned.SPAN_INCLUSIVE_INCLUSIVE | Spanned.SPAN_INTERMEDIATE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 3, 7, Locale.JAPANESE);
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assertSpanCount(1, text);
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assertLocaleSpan(text, 0, 1, 7, Locale.JAPANESE,
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Spanned.SPAN_INCLUSIVE_EXCLUSIVE | Spanned.SPAN_INTERMEDIATE);
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}
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// Test if existing span flags are preserved even when partially overlapped (trailing edge).
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{
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final SpannableString text = new SpannableString("0123456789");
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 3, 7,
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Spanned.SPAN_INCLUSIVE_INCLUSIVE | Spanned.SPAN_INTERMEDIATE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 1, 5, Locale.JAPANESE);
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assertSpanCount(1, text);
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assertLocaleSpan(text, 0, 1, 7, Locale.JAPANESE,
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Spanned.SPAN_EXCLUSIVE_INCLUSIVE | Spanned.SPAN_INTERMEDIATE);
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}
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// Test if existing locale span will be removed when the locale doesn't match.
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{
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final SpannableString text = new SpannableString("0123456789");
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.ENGLISH), 3, 5,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 1, 7, Locale.JAPANESE);
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assertSpanCount(1, text);
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assertLocaleSpan(text, 0, 1, 7, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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// Test if existing locale span will be removed when the locale doesn't match. (case 2)
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{
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final SpannableString text = new SpannableString("0123456789");
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.ENGLISH), 3, 7,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 5, 6, Locale.JAPANESE);
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assertSpanCount(3, text);
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assertLocaleSpan(text, 0, 3, 5, Locale.ENGLISH, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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assertLocaleSpan(text, 1, 6, 7, Locale.ENGLISH, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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assertLocaleSpan(text, 2, 5, 6, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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// Test if existing locale span will be removed when the locale doesn't match. (case 3)
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{
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final SpannableString text = new SpannableString("0123456789");
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.ENGLISH), 3, 7,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 2, 5, Locale.JAPANESE);
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assertSpanCount(2, text);
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assertLocaleSpan(text, 0, 5, 7, Locale.ENGLISH, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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assertLocaleSpan(text, 1, 2, 5, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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// Test if existing locale span will be removed when the locale doesn't match. (case 3)
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{
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final SpannableString text = new SpannableString("0123456789");
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text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.ENGLISH), 3, 7,
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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LocaleSpanCompatUtils.updateLocaleSpan(text, 5, 8, Locale.JAPANESE);
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assertSpanCount(2, text);
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assertLocaleSpan(text, 0, 3, 5, Locale.ENGLISH, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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assertLocaleSpan(text, 1, 5, 8, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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}
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}
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