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      1 /**
      2  * Copyright (c) 2014, Google Inc.
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.mail.utils;
     17 
     18 import android.test.AndroidTestCase;
     19 import android.test.suitebuilder.annotation.SmallTest;
     20 import android.text.SpannableString;
     21 import android.text.Spanned;
     22 import android.text.style.TextAppearanceSpan;
     23 
     24 /**
     25  * Tests for {@link Utils}.
     26  */
     27 @SmallTest
     28 public class UtilsTest extends AndroidTestCase {
     29 
     30     public void testInsertStringWithStyle() {
     31         final String entire = "Hello World!";
     32         final String sub = "World";
     33         final int appearance = android.R.style.TextAppearance_Holo_Small;
     34         final Spanned actual = Utils.insertStringWithStyle(
     35                 getContext(), entire, sub, appearance);
     36         final SpannableString expected = new SpannableString(entire);
     37         expected.setSpan(new TextAppearanceSpan(getContext(), appearance), 6, 11, 0);
     38 
     39         assertSpannedEquals(expected, actual);
     40     }
     41 
     42     public void testInsertStringWithStyle_substringNotInEntire() {
     43         final String entire = "Hello World!";
     44         final String sub = "foo";
     45         final int appearance = android.R.style.TextAppearance_Holo_Small;
     46         final Spanned actual = Utils.insertStringWithStyle(
     47                 getContext(), entire, sub, appearance);
     48         final SpannableString expected = new SpannableString(entire);
     49 
     50         assertSpannedEquals(expected, actual);
     51     }
     52 
     53     public static void assertSpannedEquals(Spanned expected, Spanned actual) {
     54         assertEquals(expected.length(), actual.length());
     55         assertEquals(expected.toString(), actual.toString());
     56         if (expected.length() > 0) {
     57             TextAppearanceSpan[] expectedSpans =
     58                     expected.getSpans(0, expected.length(), TextAppearanceSpan.class);
     59             TextAppearanceSpan[] actualSpans =
     60                     actual.getSpans(0, actual.length(), TextAppearanceSpan.class);
     61             assertEquals(expectedSpans.length, actualSpans.length);
     62             for (int i = 0 ; i < expectedSpans.length ; i++) {
     63                 assertTextAppearanceSpanEquals(expectedSpans[i], actualSpans[i]);
     64             }
     65         }
     66     }
     67 
     68     public static void assertTextAppearanceSpanEquals(
     69             TextAppearanceSpan expected, TextAppearanceSpan actual) {
     70         assertEquals(expected.describeContents(), actual.describeContents());
     71         assertEquals(expected.getTextStyle(), actual.getTextStyle());
     72         assertEquals(expected.getTextColor(), actual.getTextColor());
     73         assertEquals(expected.getLinkTextColor(), actual.getLinkTextColor());
     74         assertEquals(expected.getFamily(), actual.getFamily());
     75         assertEquals(expected.getTextSize(), actual.getTextSize());
     76     }
     77 }
     78