| /* |
| * 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 com.google.android.collect.Lists; |
| import com.google.android.collect.Maps; |
| |
| import android.graphics.Paint; |
| import android.test.suitebuilder.annotation.LargeTest; |
| import android.test.suitebuilder.annotation.SmallTest; |
| import android.text.Spannable; |
| import android.text.SpannableString; |
| import android.text.Spanned; |
| import android.text.SpannedString; |
| import android.text.TextPaint; |
| import android.text.TextUtils; |
| import android.text.style.StyleSpan; |
| import android.text.util.Rfc822Validator; |
| import android.test.MoreAsserts; |
| |
| import junit.framework.TestCase; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * TextUtilsTest tests {@link TextUtils}. |
| */ |
| public class TextUtilsTest extends TestCase { |
| |
| @SmallTest |
| public void testBasic() throws Exception { |
| assertEquals("", TextUtils.concat()); |
| assertEquals("foo", TextUtils.concat("foo")); |
| assertEquals("foobar", TextUtils.concat("foo", "bar")); |
| assertEquals("foobarbaz", TextUtils.concat("foo", "bar", "baz")); |
| |
| SpannableString foo = new SpannableString("foo"); |
| foo.setSpan("foo", 1, 2, Spannable.SPAN_EXCLUSIVE_INCLUSIVE); |
| |
| SpannableString bar = new SpannableString("bar"); |
| bar.setSpan("bar", 1, 2, Spannable.SPAN_EXCLUSIVE_INCLUSIVE); |
| |
| SpannableString baz = new SpannableString("baz"); |
| baz.setSpan("baz", 1, 2, Spannable.SPAN_EXCLUSIVE_INCLUSIVE); |
| |
| assertEquals("foo", TextUtils.concat(foo).toString()); |
| assertEquals("foobar", TextUtils.concat(foo, bar).toString()); |
| assertEquals("foobarbaz", TextUtils.concat(foo, bar, baz).toString()); |
| |
| assertEquals(1, ((Spanned) TextUtils.concat(foo)).getSpanStart("foo")); |
| |
| assertEquals(1, ((Spanned) TextUtils.concat(foo, bar)).getSpanStart("foo")); |
| assertEquals(4, ((Spanned) TextUtils.concat(foo, bar)).getSpanStart("bar")); |
| |
| assertEquals(1, ((Spanned) TextUtils.concat(foo, bar, baz)).getSpanStart("foo")); |
| assertEquals(4, ((Spanned) TextUtils.concat(foo, bar, baz)).getSpanStart("bar")); |
| assertEquals(7, ((Spanned) TextUtils.concat(foo, bar, baz)).getSpanStart("baz")); |
| |
| assertTrue(TextUtils.concat("foo", "bar") instanceof String); |
| assertTrue(TextUtils.concat(foo, bar) instanceof SpannedString); |
| } |
| |
| @SmallTest |
| public void testTemplateString() throws Exception { |
| CharSequence result; |
| |
| result = TextUtils.expandTemplate("This is a ^1 of the ^2 broadcast ^3.", |
| "test", "emergency", "system"); |
| assertEquals("This is a test of the emergency broadcast system.", |
| result.toString()); |
| |
| result = TextUtils.expandTemplate("^^^1^^^2^3^a^1^^b^^^c", |
| "one", "two", "three"); |
| assertEquals("^one^twothree^aone^b^^c", |
| result.toString()); |
| |
| result = TextUtils.expandTemplate("^"); |
| assertEquals("^", result.toString()); |
| |
| result = TextUtils.expandTemplate("^^"); |
| assertEquals("^", result.toString()); |
| |
| result = TextUtils.expandTemplate("^^^"); |
| assertEquals("^^", result.toString()); |
| |
| result = TextUtils.expandTemplate("shorter ^1 values ^2.", "a", ""); |
| assertEquals("shorter a values .", result.toString()); |
| |
| try { |
| TextUtils.expandTemplate("Only ^1 value given, but ^2 used.", "foo"); |
| fail(); |
| } catch (IllegalArgumentException e) { |
| } |
| |
| try { |
| TextUtils.expandTemplate("^1 value given, and ^0 used.", "foo"); |
| fail(); |
| } catch (IllegalArgumentException e) { |
| } |
| |
| result = TextUtils.expandTemplate("^1 value given, and ^9 used.", |
| "one", "two", "three", "four", "five", |
| "six", "seven", "eight", "nine"); |
| assertEquals("one value given, and nine used.", result.toString()); |
| |
| try { |
| TextUtils.expandTemplate("^1 value given, and ^10 used.", |
| "one", "two", "three", "four", "five", |
| "six", "seven", "eight", "nine", "ten"); |
| fail(); |
| } catch (IllegalArgumentException e) { |
| } |
| |
| // putting carets in the values: expansion is not recursive. |
| |
| result = TextUtils.expandTemplate("^2", "foo", "^^"); |
| assertEquals("^^", result.toString()); |
| |
| result = TextUtils.expandTemplate("^^2", "foo", "1"); |
| assertEquals("^2", result.toString()); |
| |
| result = TextUtils.expandTemplate("^1", "value with ^2 in it", "foo"); |
| assertEquals("value with ^2 in it", result.toString()); |
| } |
| |
| /** Fail unless text+spans contains a span 'spanName' with the given start and end. */ |
| private void checkContains(Spanned text, String[] spans, String spanName, |
| int start, int end) throws Exception { |
| for (String i: spans) { |
| if (i.equals(spanName)) { |
| assertEquals(start, text.getSpanStart(i)); |
| assertEquals(end, text.getSpanEnd(i)); |
| return; |
| } |
| } |
| fail(); |
| } |
| |
| @SmallTest |
| public void testTemplateSpan() throws Exception { |
| SpannableString template; |
| Spanned result; |
| String[] spans; |
| |
| // ordinary replacement |
| |
| template = new SpannableString("a^1b"); |
| template.setSpan("before", 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); |
| template.setSpan("during", 1, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); |
| template.setSpan("after", 3, 4, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); |
| template.setSpan("during+after", 1, 4, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); |
| |
| result = (Spanned) TextUtils.expandTemplate(template, "foo"); |
| assertEquals(5, result.length()); |
| spans = result.getSpans(0, result.length(), String.class); |
| |
| // value is one character longer, so span endpoints should change. |
| assertEquals(4, spans.length); |
| checkContains(result, spans, "before", 0, 1); |
| checkContains(result, spans, "during", 1, 4); |
| checkContains(result, spans, "after", 4, 5); |
| checkContains(result, spans, "during+after", 1, 5); |
| |
| |
| // replacement with empty string |
| |
| result = (Spanned) TextUtils.expandTemplate(template, ""); |
| assertEquals(2, result.length()); |
| spans = result.getSpans(0, result.length(), String.class); |
| |
| // the "during" span should disappear. |
| assertEquals(3, spans.length); |
| checkContains(result, spans, "before", 0, 1); |
| checkContains(result, spans, "after", 1, 2); |
| checkContains(result, spans, "during+after", 1, 2); |
| } |
| |
| @SmallTest |
| public void testStringSplitterSimple() { |
| stringSplitterTestHelper("a,b,cde", new String[] {"a", "b", "cde"}); |
| } |
| |
| @SmallTest |
| public void testStringSplitterEmpty() { |
| stringSplitterTestHelper("", new String[] {}); |
| } |
| |
| @SmallTest |
| public void testStringSplitterWithLeadingEmptyString() { |
| stringSplitterTestHelper(",a,b,cde", new String[] {"", "a", "b", "cde"}); |
| } |
| |
| @SmallTest |
| public void testStringSplitterWithInternalEmptyString() { |
| stringSplitterTestHelper("a,b,,cde", new String[] {"a", "b", "", "cde"}); |
| } |
| |
| @SmallTest |
| public void testStringSplitterWithTrailingEmptyString() { |
| // A single trailing emtpy string should be ignored. |
| stringSplitterTestHelper("a,b,cde,", new String[] {"a", "b", "cde"}); |
| } |
| |
| private void stringSplitterTestHelper(String string, String[] expectedStrings) { |
| TextUtils.StringSplitter splitter = new TextUtils.SimpleStringSplitter(','); |
| splitter.setString(string); |
| List<String> strings = Lists.newArrayList(); |
| for (String s : splitter) { |
| strings.add(s); |
| } |
| MoreAsserts.assertEquals(expectedStrings, strings.toArray(new String[]{})); |
| } |
| |
| @SmallTest |
| public void testTrim() { |
| String[] strings = { "abc", " abc", " abc", "abc ", "abc ", |
| " abc ", " abc ", "\nabc\n", "\nabc", "abc\n" }; |
| |
| for (String s : strings) { |
| assertEquals(s.trim().length(), TextUtils.getTrimmedLength(s)); |
| } |
| } |
| |
| //============================================================================================== |
| // Email validator |
| //============================================================================================== |
| |
| @SmallTest |
| public void testEmailValidator() { |
| Rfc822Validator validator = new Rfc822Validator("gmail.com"); |
| String[] validEmails = new String[] { |
| "a@b.com", "a@b.fr", "a+b@c.com", "a@b.info", |
| }; |
| |
| for (String email : validEmails) { |
| assertTrue(email + " should be a valid email address", validator.isValid(email)); |
| } |
| |
| String[] invalidEmails = new String[] { |
| "a", "a@b", "a b", "a@b.12" |
| }; |
| |
| for (String email : invalidEmails) { |
| assertFalse(email + " should not be a valid email address", validator.isValid(email)); |
| } |
| |
| Map<String, String> fixes = Maps.newHashMap(); |
| fixes.put("a", "<a@gmail.com>"); |
| fixes.put("a b", "<ab@gmail.com>"); |
| fixes.put("a@b", "<a@b>"); |
| |
| for (Map.Entry<String, String> e : fixes.entrySet()) { |
| assertEquals(e.getValue(), validator.fixText(e.getKey()).toString()); |
| } |
| } |
| |
| @LargeTest |
| public void testEllipsize() { |
| CharSequence s1 = "The quick brown fox jumps over \u00FEhe lazy dog."; |
| CharSequence s2 = new Wrapper(s1); |
| Spannable s3 = new SpannableString(s1); |
| s3.setSpan(new StyleSpan(0), 5, 10, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); |
| TextPaint p = new TextPaint(); |
| |
| for (int i = 0; i < 100; i++) { |
| for (int j = 0; j < 3; j++) { |
| TextUtils.TruncateAt kind = null; |
| |
| switch (j) { |
| case 0: |
| kind = TextUtils.TruncateAt.START; |
| break; |
| |
| case 1: |
| kind = TextUtils.TruncateAt.END; |
| break; |
| |
| case 2: |
| kind = TextUtils.TruncateAt.MIDDLE; |
| break; |
| } |
| |
| String out1 = TextUtils.ellipsize(s1, p, i, kind).toString(); |
| String out2 = TextUtils.ellipsize(s2, p, i, kind).toString(); |
| String out3 = TextUtils.ellipsize(s3, p, i, kind).toString(); |
| |
| String keep1 = TextUtils.ellipsize(s1, p, i, kind, true, null).toString(); |
| String keep2 = TextUtils.ellipsize(s2, p, i, kind, true, null).toString(); |
| String keep3 = TextUtils.ellipsize(s3, p, i, kind, true, null).toString(); |
| |
| String trim1 = keep1.replace("\uFEFF", ""); |
| |
| // Are all normal output strings identical? |
| assertEquals("wid " + i + " pass " + j, out1, out2); |
| assertEquals("wid " + i + " pass " + j, out2, out3); |
| |
| // Are preserved output strings identical? |
| assertEquals("wid " + i + " pass " + j, keep1, keep2); |
| assertEquals("wid " + i + " pass " + j, keep2, keep3); |
| |
| // Does trimming padding from preserved yield normal? |
| assertEquals("wid " + i + " pass " + j, out1, trim1); |
| |
| // Did preserved output strings preserve length? |
| assertEquals("wid " + i + " pass " + j, keep1.length(), s1.length()); |
| |
| // Does the output string actually fit in the space? |
| assertTrue("wid " + i + " pass " + j, p.measureText(out1) <= i); |
| |
| // Is the padded output the same width as trimmed output? |
| assertTrue("wid " + i + " pass " + j, p.measureText(keep1) == p.measureText(out1)); |
| } |
| } |
| } |
| |
| /** |
| * CharSequence wrapper for testing the cases where text is copied into |
| * a char array instead of working from a String or a Spanned. |
| */ |
| private static class Wrapper implements CharSequence { |
| private CharSequence mString; |
| |
| public Wrapper(CharSequence s) { |
| mString = s; |
| } |
| |
| public int length() { |
| return mString.length(); |
| } |
| |
| public char charAt(int off) { |
| return mString.charAt(off); |
| } |
| |
| public String toString() { |
| return mString.toString(); |
| } |
| |
| public CharSequence subSequence(int start, int end) { |
| return new Wrapper(mString.subSequence(start, end)); |
| } |
| } |
| } |