| /* |
| * 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 static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertSame; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import android.os.Parcel; |
| import android.platform.test.annotations.Presubmit; |
| import android.support.test.filters.LargeTest; |
| import android.support.test.filters.SmallTest; |
| import android.support.test.runner.AndroidJUnit4; |
| import android.test.MoreAsserts; |
| import android.text.style.StyleSpan; |
| import android.text.util.Rfc822Token; |
| import android.text.util.Rfc822Tokenizer; |
| import android.view.View; |
| |
| import com.google.android.collect.Lists; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Locale; |
| |
| /** |
| * TextUtilsTest tests {@link TextUtils}. |
| */ |
| @Presubmit |
| @SmallTest |
| @RunWith(AndroidJUnit4.class) |
| public class TextUtilsTest { |
| |
| @Test |
| public void testBasic() { |
| 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); |
| } |
| |
| @Test |
| public void testTemplateString() { |
| 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) { |
| for (String i: spans) { |
| if (i.equals(spanName)) { |
| assertEquals(start, text.getSpanStart(i)); |
| assertEquals(end, text.getSpanEnd(i)); |
| return; |
| } |
| } |
| fail(); |
| } |
| |
| @Test |
| public void testTemplateSpan() { |
| 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); |
| } |
| |
| @Test |
| public void testStringSplitterSimple() { |
| stringSplitterTestHelper("a,b,cde", new String[] {"a", "b", "cde"}); |
| } |
| |
| @Test |
| public void testStringSplitterEmpty() { |
| stringSplitterTestHelper("", new String[] {}); |
| } |
| |
| @Test |
| public void testStringSplitterWithLeadingEmptyString() { |
| stringSplitterTestHelper(",a,b,cde", new String[] {"", "a", "b", "cde"}); |
| } |
| |
| @Test |
| public void testStringSplitterWithInternalEmptyString() { |
| stringSplitterTestHelper("a,b,,cde", new String[] {"a", "b", "", "cde"}); |
| } |
| |
| @Test |
| 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[]{})); |
| } |
| |
| @Test |
| 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)); |
| } |
| } |
| |
| @Test |
| 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()); |
| } |
| |
| @Test |
| public void testRfc822TokenizeItemWithError() { |
| Rfc822Token[] tokens = Rfc822Tokenizer.tokenize("\"Foo Bar\\"); |
| assertNotNull(tokens); |
| assertEquals(1, tokens.length); |
| assertEquals("Foo Bar", tokens[0].getAddress()); |
| } |
| |
| @Test |
| 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)); |
| } |
| |
| @Test |
| public void testRfc822FindTokenWithError() { |
| assertEquals(9, new Rfc822Tokenizer().findTokenEnd("\"Foo Bar\\", 0)); |
| } |
| |
| @LargeTest |
| @Test |
| 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)); |
| } |
| } |
| } |
| |
| @Test |
| public void testEllipsize_multiCodepoint() { |
| final TextPaint paint = new TextPaint(); |
| final float wordWidth = paint.measureText("MMMM"); |
| |
| // Establish the ground rules first, for single-codepoint cases. |
| final String ellipsis = "."; // one full stop character |
| assertEquals( |
| "MM.\uFEFF", |
| TextUtils.ellipsize("MMMM", paint, 0.7f * wordWidth, |
| TextUtils.TruncateAt.END, true /* preserve length */, |
| null /* no callback */, TextDirectionHeuristics.LTR, |
| ellipsis)); |
| assertEquals( |
| "MM.", |
| TextUtils.ellipsize("MMMM", paint, 0.7f * wordWidth, |
| TextUtils.TruncateAt.END, false /* preserve length */, |
| null /* no callback */, TextDirectionHeuristics.LTR, |
| ellipsis)); |
| assertEquals( |
| "M.", |
| TextUtils.ellipsize("MM", paint, 0.45f * wordWidth, |
| TextUtils.TruncateAt.END, true /* preserve length */, |
| null /* no callback */, TextDirectionHeuristics.LTR, |
| ellipsis)); |
| assertEquals( |
| "M.", |
| TextUtils.ellipsize("MM", paint, 0.45f * wordWidth, |
| TextUtils.TruncateAt.END, false /* preserve length */, |
| null /* no callback */, TextDirectionHeuristics.LTR, |
| ellipsis)); |
| |
| // Now check the differences for multi-codepoint ellipsis. |
| final String longEllipsis = ".."; // two full stop characters |
| assertEquals( |
| "MM..", |
| TextUtils.ellipsize("MMMM", paint, 0.7f * wordWidth, |
| TextUtils.TruncateAt.END, true /* preserve length */, |
| null /* no callback */, TextDirectionHeuristics.LTR, |
| longEllipsis)); |
| assertEquals( |
| "MM..", |
| TextUtils.ellipsize("MMMM", paint, 0.7f * wordWidth, |
| TextUtils.TruncateAt.END, false /* preserve length */, |
| null /* no callback */, TextDirectionHeuristics.LTR, |
| longEllipsis)); |
| assertEquals( |
| "M\uFEFF", |
| TextUtils.ellipsize("MM", paint, 0.45f * wordWidth, |
| TextUtils.TruncateAt.END, true /* preserve length */, |
| null /* no callback */, TextDirectionHeuristics.LTR, |
| longEllipsis)); |
| assertEquals( |
| "M..", |
| TextUtils.ellipsize("MM", paint, 0.45f * wordWidth, |
| TextUtils.TruncateAt.END, false /* preserve length */, |
| null /* no callback */, TextDirectionHeuristics.LTR, |
| longEllipsis)); |
| } |
| |
| @Test |
| 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")); |
| } |
| |
| @Test |
| public void testCharSequenceCreator() { |
| Parcel p = Parcel.obtain(); |
| CharSequence text; |
| try { |
| TextUtils.writeToParcel(null, p, 0); |
| text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| assertNull("null CharSequence should generate null from parcel", text); |
| } finally { |
| p.recycle(); |
| } |
| p = Parcel.obtain(); |
| try { |
| TextUtils.writeToParcel("test", p, 0); |
| p.setDataPosition(0); |
| text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| assertEquals("conversion to/from parcel failed", "test", text); |
| } finally { |
| p.recycle(); |
| } |
| } |
| |
| @Test |
| public void testCharSequenceCreatorNull() { |
| Parcel p; |
| CharSequence text; |
| p = Parcel.obtain(); |
| try { |
| TextUtils.writeToParcel(null, p, 0); |
| p.setDataPosition(0); |
| text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| assertNull("null CharSequence should generate null from parcel", text); |
| } finally { |
| p.recycle(); |
| } |
| } |
| |
| @Test |
| public void testCharSequenceCreatorSpannable() { |
| Parcel p; |
| CharSequence text; |
| p = Parcel.obtain(); |
| try { |
| 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()); |
| } finally { |
| p.recycle(); |
| } |
| } |
| |
| @Test |
| public void testCharSequenceCreatorString() { |
| Parcel p; |
| CharSequence text; |
| p = Parcel.obtain(); |
| try { |
| TextUtils.writeToParcel("test", p, 0); |
| p.setDataPosition(0); |
| text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| assertEquals("conversion to/from parcel failed", "test", text.toString()); |
| } finally { |
| p.recycle(); |
| } |
| } |
| |
| /** |
| * 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; |
| } |
| |
| @Override |
| public int length() { |
| return mString.length(); |
| } |
| |
| @Override |
| public char charAt(int off) { |
| return mString.charAt(off); |
| } |
| |
| @Override |
| public String toString() { |
| return mString.toString(); |
| } |
| |
| @Override |
| public CharSequence subSequence(int start, int end) { |
| return new Wrapper(mString.subSequence(start, end)); |
| } |
| } |
| |
| @Test |
| 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]); |
| } |
| } |
| |
| @Override |
| public char charAt(int arg0) { |
| return 0; |
| } |
| |
| @Override |
| public int length() { |
| return 0; |
| } |
| |
| @Override |
| 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; |
| } |
| } |
| |
| @Test |
| public void testGetLayoutDirectionFromLocale() { |
| assertEquals(View.LAYOUT_DIRECTION_LTR, TextUtils.getLayoutDirectionFromLocale(null)); |
| assertEquals(View.LAYOUT_DIRECTION_LTR, |
| TextUtils.getLayoutDirectionFromLocale(Locale.ROOT)); |
| assertEquals(View.LAYOUT_DIRECTION_LTR, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("en"))); |
| assertEquals(View.LAYOUT_DIRECTION_LTR, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("en-US"))); |
| assertEquals(View.LAYOUT_DIRECTION_LTR, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("az"))); |
| assertEquals(View.LAYOUT_DIRECTION_LTR, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("az-AZ"))); |
| assertEquals(View.LAYOUT_DIRECTION_LTR, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("az-Latn"))); |
| assertEquals(View.LAYOUT_DIRECTION_LTR, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("en-EG"))); |
| assertEquals(View.LAYOUT_DIRECTION_LTR, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("ar-Latn"))); |
| |
| assertEquals(View.LAYOUT_DIRECTION_RTL, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("ar"))); |
| assertEquals(View.LAYOUT_DIRECTION_RTL, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("fa"))); |
| assertEquals(View.LAYOUT_DIRECTION_RTL, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("he"))); |
| assertEquals(View.LAYOUT_DIRECTION_RTL, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("iw"))); |
| assertEquals(View.LAYOUT_DIRECTION_RTL, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("ur"))); |
| assertEquals(View.LAYOUT_DIRECTION_RTL, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("dv"))); |
| assertEquals(View.LAYOUT_DIRECTION_RTL, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("az-Arab"))); |
| assertEquals(View.LAYOUT_DIRECTION_RTL, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("az-IR"))); |
| assertEquals(View.LAYOUT_DIRECTION_RTL, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("fa-US"))); |
| assertEquals(View.LAYOUT_DIRECTION_RTL, |
| TextUtils.getLayoutDirectionFromLocale(Locale.forLanguageTag("tr-Arab"))); |
| } |
| |
| @Test |
| public void testToUpperCase() { |
| { |
| final CharSequence result = TextUtils.toUpperCase(null, "abc", false); |
| assertEquals(StringBuilder.class, result.getClass()); |
| assertEquals("ABC", result.toString()); |
| } |
| { |
| final SpannableString str = new SpannableString("abc"); |
| Object span = new Object(); |
| str.setSpan(span, 1, 2, Spanned.SPAN_INCLUSIVE_INCLUSIVE); |
| |
| final CharSequence result = TextUtils.toUpperCase(null, str, true /* copySpans */); |
| assertEquals(SpannableStringBuilder.class, result.getClass()); |
| assertEquals("ABC", result.toString()); |
| final Spanned spanned = (Spanned) result; |
| final Object[] resultSpans = spanned.getSpans(0, result.length(), Object.class); |
| assertEquals(1, resultSpans.length); |
| assertSame(span, resultSpans[0]); |
| assertEquals(1, spanned.getSpanStart(span)); |
| assertEquals(2, spanned.getSpanEnd(span)); |
| assertEquals(Spanned.SPAN_INCLUSIVE_INCLUSIVE, spanned.getSpanFlags(span)); |
| } |
| { |
| final Locale turkish = new Locale("tr", "TR"); |
| final CharSequence result = TextUtils.toUpperCase(turkish, "i", false); |
| assertEquals(StringBuilder.class, result.getClass()); |
| assertEquals("İ", result.toString()); |
| } |
| { |
| final String str = "ABC"; |
| assertSame(str, TextUtils.toUpperCase(null, str, false)); |
| } |
| { |
| final SpannableString str = new SpannableString("ABC"); |
| str.setSpan(new Object(), 1, 2, Spanned.SPAN_INCLUSIVE_INCLUSIVE); |
| assertSame(str, TextUtils.toUpperCase(null, str, true /* copySpans */)); |
| } |
| } |
| |
| // Copied from cts/tests/tests/widget/src/android/widget/cts/TextViewTest.java and modified |
| // for the TextUtils.toUpperCase method. |
| @Test |
| public void testToUpperCase_SpansArePreserved() { |
| final Locale greek = new Locale("el", "GR"); |
| final String lowerString = "ι\u0301ριδα"; // ίριδα with first letter decomposed |
| final String upperString = "ΙΡΙΔΑ"; // uppercased |
| // expected lowercase to uppercase index map |
| final int[] indexMap = {0, 1, 1, 2, 3, 4, 5}; |
| final int flags = Spanned.SPAN_INCLUSIVE_INCLUSIVE; |
| |
| final Spannable source = new SpannableString(lowerString); |
| source.setSpan(new Object(), 0, 1, flags); |
| source.setSpan(new Object(), 1, 2, flags); |
| source.setSpan(new Object(), 2, 3, flags); |
| source.setSpan(new Object(), 3, 4, flags); |
| source.setSpan(new Object(), 4, 5, flags); |
| source.setSpan(new Object(), 5, 6, flags); |
| source.setSpan(new Object(), 0, 2, flags); |
| source.setSpan(new Object(), 1, 3, flags); |
| source.setSpan(new Object(), 2, 4, flags); |
| source.setSpan(new Object(), 0, 6, flags); |
| final Object[] sourceSpans = source.getSpans(0, source.length(), Object.class); |
| |
| final CharSequence uppercase = TextUtils.toUpperCase(greek, source, true /* copySpans */); |
| assertEquals(SpannableStringBuilder.class, uppercase.getClass()); |
| final Spanned result = (Spanned) uppercase; |
| |
| assertEquals(upperString, result.toString()); |
| final Object[] resultSpans = result.getSpans(0, result.length(), Object.class); |
| assertEquals(sourceSpans.length, resultSpans.length); |
| for (int i = 0; i < sourceSpans.length; i++) { |
| assertSame(sourceSpans[i], resultSpans[i]); |
| final Object span = sourceSpans[i]; |
| assertEquals(indexMap[source.getSpanStart(span)], result.getSpanStart(span)); |
| assertEquals(indexMap[source.getSpanEnd(span)], result.getSpanEnd(span)); |
| assertEquals(source.getSpanFlags(span), result.getSpanFlags(span)); |
| } |
| } |
| |
| @Test |
| public void testTrimToSize() { |
| final String testString = "a\uD800\uDC00a"; |
| assertEquals("Should return text as it is if size is longer than length", |
| testString, TextUtils.trimToSize(testString, 5)); |
| assertEquals("Should return text as it is if size is equal to length", |
| testString, TextUtils.trimToSize(testString, 4)); |
| assertEquals("Should trim text", |
| "a\uD800\uDC00", TextUtils.trimToSize(testString, 3)); |
| assertEquals("Should trim surrogate pairs if size is in the middle of a pair", |
| "a", TextUtils.trimToSize(testString, 2)); |
| assertEquals("Should trim text", |
| "a", TextUtils.trimToSize(testString, 1)); |
| assertEquals("Should handle null", |
| null, TextUtils.trimToSize(null, 1)); |
| |
| assertEquals("Should trim high surrogate if invalid surrogate", |
| "a\uD800", TextUtils.trimToSize("a\uD800\uD800", 2)); |
| assertEquals("Should trim low surrogate if invalid surrogate", |
| "a\uDC00", TextUtils.trimToSize("a\uDC00\uDC00", 2)); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testTrimToSizeThrowsExceptionForNegativeSize() { |
| TextUtils.trimToSize("", -1); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testTrimToSizeThrowsExceptionForZeroSize() { |
| TextUtils.trimToSize("abc", 0); |
| } |
| |
| @Test |
| public void length() { |
| assertEquals(0, TextUtils.length(null)); |
| assertEquals(0, TextUtils.length("")); |
| assertEquals(2, TextUtils.length(" ")); |
| assertEquals(6, TextUtils.length("Hello!")); |
| } |
| } |