/*
* Copyright (C) 2008 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.unit_tests;
import android.graphics.Typeface;
import android.os.Parcel;
import android.test.suitebuilder.annotation.SmallTest;
import android.text.*;
import android.text.style.*;
import android.util.Log;
import junit.framework.TestCase;
/**
* SpannedTest tests some features of Spanned
*/
public class SpannedTest extends TestCase {
private int mExpect;
@SmallTest
public void testSpannableString() throws Exception {
checkPriority(new SpannableString("the quick brown fox"));
}
@SmallTest
public void testSpannableStringBuilder() throws Exception {
checkPriority2(new SpannableStringBuilder("the quick brown fox"));
}
@SmallTest
public void testAppend() throws Exception {
Object o = new Object();
SpannableString ss = new SpannableString("Test");
ss.setSpan(o, 0, ss.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
SpannableStringBuilder ssb = new SpannableStringBuilder();
ssb.append(ss);
assertEquals(0, ssb.getSpanStart(o));
assertEquals(4, ssb.getSpanEnd(o));
assertEquals(1, ssb.getSpans(0, 4, Object.class).length);
ssb.insert(0, ss);
assertEquals(4, ssb.getSpanStart(o));
assertEquals(8, ssb.getSpanEnd(o));
assertEquals(0, ssb.getSpans(0, 4, Object.class).length);
assertEquals(1, ssb.getSpans(4, 8, Object.class).length);
}
@SmallTest
public void testWrapParcel() {
SpannableString s = new SpannableString("Hello there world");
CharacterStyle mark = new StyleSpan(Typeface.BOLD);
s.setSpan(mark, 1, 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
s.setSpan(CharacterStyle.wrap(mark), 3, 7,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
s.setSpan(new TextAppearanceSpan("mono", 0, -1, null, null), 7, 8,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
s.setSpan(CharacterStyle.wrap(new TypefaceSpan("mono")), 8, 9,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
Parcel p = Parcel.obtain();
TextUtils.writeToParcel(s, p, 0);
p.setDataPosition(0);
Spanned s2 = (Spanned) TextUtils.CHAR_SEQUENCE_CREATOR.
createFromParcel(p);
StyleSpan[] style;
style = s2.getSpans(1, 2, StyleSpan.class);
assertEquals(1, style.length);
assertEquals(1, s2.getSpanStart(style[0]));
assertEquals(2, s2.getSpanEnd(style[0]));
style = s2.getSpans(3, 7, StyleSpan.class);
assertEquals(1, style.length);
assertEquals(3, s2.getSpanStart(style[0]));
assertEquals(7, s2.getSpanEnd(style[0]));
TextAppearanceSpan[] appearance = s2.getSpans(7, 8,
TextAppearanceSpan.class);
assertEquals(1, appearance.length);
assertEquals(7, s2.getSpanStart(appearance[0]));
assertEquals(8, s2.getSpanEnd(appearance[0]));
TypefaceSpan[] tf = s2.getSpans(8, 9, TypefaceSpan.class);
assertEquals(1, tf.length);
assertEquals(8, s2.getSpanStart(tf[0]));
assertEquals(9, s2.getSpanEnd(tf[0]));
}
private void checkPriority(Spannable s) {
s.setSpan(new Object(), 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE |
(5 << Spannable.SPAN_PRIORITY_SHIFT));
s.setSpan(new Object(), 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE |
(10 << Spannable.SPAN_PRIORITY_SHIFT));
s.setSpan(new Object(), 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE |
(0 << Spannable.SPAN_PRIORITY_SHIFT));
s.setSpan(new Object(), 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE |
(15 << Spannable.SPAN_PRIORITY_SHIFT));
s.setSpan(new Object(), 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE |
(3 << Spannable.SPAN_PRIORITY_SHIFT));
s.setSpan(new Object(), 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE |
(6 << Spannable.SPAN_PRIORITY_SHIFT));
s.setSpan(new Object(), 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE |
(0 << Spannable.SPAN_PRIORITY_SHIFT));
Object[] spans = s.getSpans(0, s.length(), Object.class);
for (int i = 0; i < spans.length - 1; i++) {
assertEquals((s.getSpanFlags(spans[i]) & Spanned.SPAN_PRIORITY) >=
(s.getSpanFlags(spans[i + 1]) & Spanned.SPAN_PRIORITY),
true);
}
mExpect = 0;
s.setSpan(new Watcher(2), 0, s.length(),
Spannable.SPAN_INCLUSIVE_INCLUSIVE |
(2 << Spannable.SPAN_PRIORITY_SHIFT));
s.setSpan(new Watcher(4), 0, s.length(),
Spannable.SPAN_INCLUSIVE_INCLUSIVE |
(4 << Spannable.SPAN_PRIORITY_SHIFT));
s.setSpan(new Watcher(1), 0, s.length(),
Spannable.SPAN_INCLUSIVE_INCLUSIVE |
(1 << Spannable.SPAN_PRIORITY_SHIFT));
s.setSpan(new Watcher(3), 0, s.length(),
Spannable.SPAN_INCLUSIVE_INCLUSIVE |
(3 << Spannable.SPAN_PRIORITY_SHIFT));
mExpect = 4;
s.setSpan(new Object(), 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
assertEquals(mExpect, 0);
}
private void checkPriority2(SpannableStringBuilder ssb) {
checkPriority(ssb);
mExpect = 4;
ssb.insert(3, "something");
assertEquals(mExpect, 0);
}
private class Watcher implements SpanWatcher, TextWatcher {
private int mSequence;
public Watcher(int sequence) {
mSequence = sequence;
}
public void onSpanChanged(Spannable b, Object o, int s, int e,
int st, int en) { }
public void onSpanRemoved(Spannable b, Object o, int s, int e) { }
public void onSpanAdded(Spannable b, Object o, int s, int e) {
if (mExpect != 0) {
assertEquals(mSequence, mExpect);
mExpect = mSequence - 1;
}
}
public void beforeTextChanged(CharSequence s, int start, int count,
int after) { }
public void onTextChanged(CharSequence s, int start, int before,
int count) {
if (mExpect != 0) {
assertEquals(mSequence, mExpect);
mExpect = mSequence - 1;
}
}
public void afterTextChanged(Editable s) { }
}
}