| /* |
| * 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 android.text; |
| |
| import com.google.android.collect.Lists; |
| |
| import android.test.MoreAsserts; |
| import android.os.Parcel; |
| import android.test.suitebuilder.annotation.LargeTest; |
| import android.test.suitebuilder.annotation.SmallTest; |
| import android.text.style.StyleSpan; |
| import android.text.util.Rfc822Token; |
| import android.text.util.Rfc822Tokenizer; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import junit.framework.TestCase; |
| |
| /** |
| * 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)); |
| } |
| } |
| |
| @SmallTest |
| public void testRfc822TokenizerFullAddress() { |
| Rfc822Token[] tokens = Rfc822Tokenizer.tokenize("Foo Bar (something) <foo@google.com>"); |
| assertNotNull(tokens); |
| assertEquals(1, tokens.length); |
| assertEquals("foo@google.com", tokens[0].getAddress()); |
| assertEquals("Foo Bar", tokens[0].getName()); |
| assertEquals("something",tokens[0].getComment()); |
| } |
| |
| @SmallTest |
| public void testRfc822TokenizeItemWithError() { |
| Rfc822Token[] tokens = Rfc822Tokenizer.tokenize("\"Foo Bar\\"); |
| assertNotNull(tokens); |
| assertEquals(1, tokens.length); |
| assertEquals("Foo Bar", tokens[0].getAddress()); |
| } |
| |
| @SmallTest |
| public void testRfc822FindToken() { |
| Rfc822Tokenizer tokenizer = new Rfc822Tokenizer(); |
| // 0 1 2 3 4 |
| // 0 1234 56789012345678901234 5678 90123456789012345 |
| String address = "\"Foo\" <foo@google.com>, \"Bar\" <bar@google.com>"; |
| assertEquals(0, tokenizer.findTokenStart(address, 21)); |
| assertEquals(22, tokenizer.findTokenEnd(address, 21)); |
| assertEquals(24, tokenizer.findTokenStart(address, 25)); |
| assertEquals(46, tokenizer.findTokenEnd(address, 25)); |
| } |
| |
| @SmallTest |
| public void testRfc822FindTokenWithError() { |
| assertEquals(9, new Rfc822Tokenizer().findTokenEnd("\"Foo Bar\\", 0)); |
| } |
| |
| @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(); |
| p.setFlags(p.getFlags() & ~p.DEV_KERN_TEXT_FLAG); |
| |
| 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)); |
| } |
| } |
| } |
| |
| @SmallTest |
| public void testDelimitedStringContains() { |
| assertFalse(TextUtils.delimitedStringContains("", ',', null)); |
| assertFalse(TextUtils.delimitedStringContains(null, ',', "")); |
| // Whole match |
| assertTrue(TextUtils.delimitedStringContains("gps", ',', "gps")); |
| // At beginning. |
| assertTrue(TextUtils.delimitedStringContains("gps,gpsx,network,mock", ',', "gps")); |
| assertTrue(TextUtils.delimitedStringContains("gps,network,mock", ',', "gps")); |
| // In middle, both without, before & after a false match. |
| assertTrue(TextUtils.delimitedStringContains("network,gps,mock", ',', "gps")); |
| assertTrue(TextUtils.delimitedStringContains("network,gps,gpsx,mock", ',', "gps")); |
| assertTrue(TextUtils.delimitedStringContains("network,gpsx,gps,mock", ',', "gps")); |
| // At the end. |
| assertTrue(TextUtils.delimitedStringContains("network,mock,gps", ',', "gps")); |
| assertTrue(TextUtils.delimitedStringContains("network,mock,gpsx,gps", ',', "gps")); |
| // Not present (but with a false match) |
| assertFalse(TextUtils.delimitedStringContains("network,mock,gpsx", ',', "gps")); |
| } |
| |
| @SmallTest |
| public void testCharSequenceCreator() { |
| Parcel p = Parcel.obtain(); |
| TextUtils.writeToParcel(null, p, 0); |
| CharSequence text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| assertNull("null CharSequence should generate null from parcel", text); |
| p = Parcel.obtain(); |
| TextUtils.writeToParcel("test", p, 0); |
| text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| assertEquals("conversion to/from parcel failed", "test", text); |
| } |
| |
| @SmallTest |
| public void testCharSequenceCreatorNull() { |
| Parcel p; |
| CharSequence text; |
| p = Parcel.obtain(); |
| TextUtils.writeToParcel(null, p, 0); |
| p.setDataPosition(0); |
| text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| assertNull("null CharSequence should generate null from parcel", text); |
| } |
| |
| @SmallTest |
| public void testCharSequenceCreatorSpannable() { |
| Parcel p; |
| CharSequence text; |
| p = Parcel.obtain(); |
| TextUtils.writeToParcel(new SpannableString("test"), p, 0); |
| p.setDataPosition(0); |
| text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| assertEquals("conversion to/from parcel failed", "test", text.toString()); |
| } |
| |
| @SmallTest |
| public void testCharSequenceCreatorString() { |
| Parcel p; |
| CharSequence text; |
| p = Parcel.obtain(); |
| TextUtils.writeToParcel("test", p, 0); |
| p.setDataPosition(0); |
| text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| assertEquals("conversion to/from parcel failed", "test", text.toString()); |
| } |
| |
| /** |
| * 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); |
| } |
| |
| @Override |
| public String toString() { |
| return mString.toString(); |
| } |
| |
| public CharSequence subSequence(int start, int end) { |
| return new Wrapper(mString.subSequence(start, end)); |
| } |
| } |
| |
| @LargeTest |
| public void testRemoveEmptySpans() { |
| MockSpanned spanned = new MockSpanned(); |
| |
| spanned.test(); |
| spanned.addSpan().test(); |
| spanned.addSpan().test(); |
| spanned.addSpan().test(); |
| spanned.addEmptySpan().test(); |
| spanned.addSpan().test(); |
| spanned.addEmptySpan().test(); |
| spanned.addEmptySpan().test(); |
| spanned.addSpan().test(); |
| |
| spanned.clear(); |
| spanned.addEmptySpan().test(); |
| spanned.addEmptySpan().test(); |
| spanned.addEmptySpan().test(); |
| spanned.addSpan().test(); |
| spanned.addEmptySpan().test(); |
| spanned.addSpan().test(); |
| |
| spanned.clear(); |
| spanned.addSpan().test(); |
| spanned.addEmptySpan().test(); |
| spanned.addSpan().test(); |
| spanned.addEmptySpan().test(); |
| spanned.addSpan().test(); |
| spanned.addSpan().test(); |
| } |
| |
| protected static class MockSpanned implements Spanned { |
| |
| private List<Object> allSpans = new ArrayList<Object>(); |
| private List<Object> nonEmptySpans = new ArrayList<Object>(); |
| |
| public void clear() { |
| allSpans.clear(); |
| nonEmptySpans.clear(); |
| } |
| |
| public MockSpanned addSpan() { |
| Object o = new Object(); |
| allSpans.add(o); |
| nonEmptySpans.add(o); |
| return this; |
| } |
| |
| public MockSpanned addEmptySpan() { |
| Object o = new Object(); |
| allSpans.add(o); |
| return this; |
| } |
| |
| public void test() { |
| Object[] nonEmpty = TextUtils.removeEmptySpans(allSpans.toArray(), this, Object.class); |
| assertEquals("Mismatched array size", nonEmptySpans.size(), nonEmpty.length); |
| for (int i=0; i<nonEmpty.length; i++) { |
| assertEquals("Span differ", nonEmptySpans.get(i), nonEmpty[i]); |
| } |
| } |
| |
| public char charAt(int arg0) { |
| return 0; |
| } |
| |
| public int length() { |
| return 0; |
| } |
| |
| public CharSequence subSequence(int arg0, int arg1) { |
| return null; |
| } |
| |
| @Override |
| public <T> T[] getSpans(int start, int end, Class<T> type) { |
| return null; |
| } |
| |
| @Override |
| public int getSpanStart(Object tag) { |
| return 0; |
| } |
| |
| @Override |
| public int getSpanEnd(Object tag) { |
| return nonEmptySpans.contains(tag) ? 1 : 0; |
| } |
| |
| @Override |
| public int getSpanFlags(Object tag) { |
| return 0; |
| } |
| |
| @Override |
| public int nextSpanTransition(int start, int limit, Class type) { |
| return 0; |
| } |
| } |
| } |