The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 The Android Open Source Project |
| 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 | |
Neal Nguyen | 1a44d5d | 2010-01-13 10:42:43 -0800 | [diff] [blame] | 17 | package android.text; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 18 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 19 | import android.graphics.Paint; |
Martin Wallgren | cee2051 | 2011-04-07 14:45:43 +0200 | [diff] [blame] | 20 | import android.os.Parcel; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 21 | import android.test.suitebuilder.annotation.LargeTest; |
| 22 | import android.test.suitebuilder.annotation.SmallTest; |
| 23 | import android.text.Spannable; |
| 24 | import android.text.SpannableString; |
| 25 | import android.text.Spanned; |
| 26 | import android.text.SpannedString; |
| 27 | import android.text.TextPaint; |
| 28 | import android.text.TextUtils; |
| 29 | import android.text.style.StyleSpan; |
The Android Open Source Project | ee7e6a7 | 2010-06-03 09:03:58 -0700 | [diff] [blame] | 30 | import android.text.util.Rfc822Token; |
| 31 | import android.text.util.Rfc822Tokenizer; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 32 | import android.test.MoreAsserts; |
| 33 | |
Paul Westbrook | 7762d93 | 2009-12-11 14:13:48 -0800 | [diff] [blame] | 34 | import com.google.android.collect.Lists; |
| 35 | import com.google.android.collect.Maps; |
| 36 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 37 | import junit.framework.TestCase; |
| 38 | |
| 39 | import java.util.List; |
| 40 | import java.util.Map; |
| 41 | |
| 42 | /** |
| 43 | * TextUtilsTest tests {@link TextUtils}. |
| 44 | */ |
| 45 | public class TextUtilsTest extends TestCase { |
| 46 | |
| 47 | @SmallTest |
| 48 | public void testBasic() throws Exception { |
| 49 | assertEquals("", TextUtils.concat()); |
| 50 | assertEquals("foo", TextUtils.concat("foo")); |
| 51 | assertEquals("foobar", TextUtils.concat("foo", "bar")); |
| 52 | assertEquals("foobarbaz", TextUtils.concat("foo", "bar", "baz")); |
| 53 | |
| 54 | SpannableString foo = new SpannableString("foo"); |
| 55 | foo.setSpan("foo", 1, 2, Spannable.SPAN_EXCLUSIVE_INCLUSIVE); |
| 56 | |
| 57 | SpannableString bar = new SpannableString("bar"); |
| 58 | bar.setSpan("bar", 1, 2, Spannable.SPAN_EXCLUSIVE_INCLUSIVE); |
| 59 | |
| 60 | SpannableString baz = new SpannableString("baz"); |
| 61 | baz.setSpan("baz", 1, 2, Spannable.SPAN_EXCLUSIVE_INCLUSIVE); |
| 62 | |
| 63 | assertEquals("foo", TextUtils.concat(foo).toString()); |
| 64 | assertEquals("foobar", TextUtils.concat(foo, bar).toString()); |
| 65 | assertEquals("foobarbaz", TextUtils.concat(foo, bar, baz).toString()); |
| 66 | |
| 67 | assertEquals(1, ((Spanned) TextUtils.concat(foo)).getSpanStart("foo")); |
| 68 | |
| 69 | assertEquals(1, ((Spanned) TextUtils.concat(foo, bar)).getSpanStart("foo")); |
| 70 | assertEquals(4, ((Spanned) TextUtils.concat(foo, bar)).getSpanStart("bar")); |
| 71 | |
| 72 | assertEquals(1, ((Spanned) TextUtils.concat(foo, bar, baz)).getSpanStart("foo")); |
| 73 | assertEquals(4, ((Spanned) TextUtils.concat(foo, bar, baz)).getSpanStart("bar")); |
| 74 | assertEquals(7, ((Spanned) TextUtils.concat(foo, bar, baz)).getSpanStart("baz")); |
| 75 | |
| 76 | assertTrue(TextUtils.concat("foo", "bar") instanceof String); |
| 77 | assertTrue(TextUtils.concat(foo, bar) instanceof SpannedString); |
| 78 | } |
| 79 | |
| 80 | @SmallTest |
| 81 | public void testTemplateString() throws Exception { |
| 82 | CharSequence result; |
| 83 | |
| 84 | result = TextUtils.expandTemplate("This is a ^1 of the ^2 broadcast ^3.", |
| 85 | "test", "emergency", "system"); |
| 86 | assertEquals("This is a test of the emergency broadcast system.", |
| 87 | result.toString()); |
| 88 | |
| 89 | result = TextUtils.expandTemplate("^^^1^^^2^3^a^1^^b^^^c", |
| 90 | "one", "two", "three"); |
| 91 | assertEquals("^one^twothree^aone^b^^c", |
| 92 | result.toString()); |
| 93 | |
| 94 | result = TextUtils.expandTemplate("^"); |
| 95 | assertEquals("^", result.toString()); |
| 96 | |
| 97 | result = TextUtils.expandTemplate("^^"); |
| 98 | assertEquals("^", result.toString()); |
| 99 | |
| 100 | result = TextUtils.expandTemplate("^^^"); |
| 101 | assertEquals("^^", result.toString()); |
| 102 | |
| 103 | result = TextUtils.expandTemplate("shorter ^1 values ^2.", "a", ""); |
| 104 | assertEquals("shorter a values .", result.toString()); |
| 105 | |
| 106 | try { |
| 107 | TextUtils.expandTemplate("Only ^1 value given, but ^2 used.", "foo"); |
| 108 | fail(); |
| 109 | } catch (IllegalArgumentException e) { |
| 110 | } |
| 111 | |
| 112 | try { |
| 113 | TextUtils.expandTemplate("^1 value given, and ^0 used.", "foo"); |
| 114 | fail(); |
| 115 | } catch (IllegalArgumentException e) { |
| 116 | } |
| 117 | |
| 118 | result = TextUtils.expandTemplate("^1 value given, and ^9 used.", |
| 119 | "one", "two", "three", "four", "five", |
| 120 | "six", "seven", "eight", "nine"); |
| 121 | assertEquals("one value given, and nine used.", result.toString()); |
| 122 | |
| 123 | try { |
| 124 | TextUtils.expandTemplate("^1 value given, and ^10 used.", |
| 125 | "one", "two", "three", "four", "five", |
| 126 | "six", "seven", "eight", "nine", "ten"); |
| 127 | fail(); |
| 128 | } catch (IllegalArgumentException e) { |
| 129 | } |
| 130 | |
| 131 | // putting carets in the values: expansion is not recursive. |
| 132 | |
| 133 | result = TextUtils.expandTemplate("^2", "foo", "^^"); |
| 134 | assertEquals("^^", result.toString()); |
| 135 | |
| 136 | result = TextUtils.expandTemplate("^^2", "foo", "1"); |
| 137 | assertEquals("^2", result.toString()); |
| 138 | |
| 139 | result = TextUtils.expandTemplate("^1", "value with ^2 in it", "foo"); |
| 140 | assertEquals("value with ^2 in it", result.toString()); |
| 141 | } |
| 142 | |
| 143 | /** Fail unless text+spans contains a span 'spanName' with the given start and end. */ |
| 144 | private void checkContains(Spanned text, String[] spans, String spanName, |
| 145 | int start, int end) throws Exception { |
| 146 | for (String i: spans) { |
| 147 | if (i.equals(spanName)) { |
| 148 | assertEquals(start, text.getSpanStart(i)); |
| 149 | assertEquals(end, text.getSpanEnd(i)); |
| 150 | return; |
| 151 | } |
| 152 | } |
| 153 | fail(); |
| 154 | } |
| 155 | |
| 156 | @SmallTest |
| 157 | public void testTemplateSpan() throws Exception { |
| 158 | SpannableString template; |
| 159 | Spanned result; |
| 160 | String[] spans; |
| 161 | |
| 162 | // ordinary replacement |
| 163 | |
| 164 | template = new SpannableString("a^1b"); |
| 165 | template.setSpan("before", 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); |
| 166 | template.setSpan("during", 1, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); |
| 167 | template.setSpan("after", 3, 4, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); |
| 168 | template.setSpan("during+after", 1, 4, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); |
| 169 | |
| 170 | result = (Spanned) TextUtils.expandTemplate(template, "foo"); |
| 171 | assertEquals(5, result.length()); |
| 172 | spans = result.getSpans(0, result.length(), String.class); |
| 173 | |
| 174 | // value is one character longer, so span endpoints should change. |
| 175 | assertEquals(4, spans.length); |
| 176 | checkContains(result, spans, "before", 0, 1); |
| 177 | checkContains(result, spans, "during", 1, 4); |
| 178 | checkContains(result, spans, "after", 4, 5); |
| 179 | checkContains(result, spans, "during+after", 1, 5); |
| 180 | |
| 181 | |
| 182 | // replacement with empty string |
| 183 | |
| 184 | result = (Spanned) TextUtils.expandTemplate(template, ""); |
| 185 | assertEquals(2, result.length()); |
| 186 | spans = result.getSpans(0, result.length(), String.class); |
| 187 | |
| 188 | // the "during" span should disappear. |
| 189 | assertEquals(3, spans.length); |
| 190 | checkContains(result, spans, "before", 0, 1); |
| 191 | checkContains(result, spans, "after", 1, 2); |
| 192 | checkContains(result, spans, "during+after", 1, 2); |
| 193 | } |
| 194 | |
| 195 | @SmallTest |
| 196 | public void testStringSplitterSimple() { |
| 197 | stringSplitterTestHelper("a,b,cde", new String[] {"a", "b", "cde"}); |
| 198 | } |
| 199 | |
| 200 | @SmallTest |
| 201 | public void testStringSplitterEmpty() { |
| 202 | stringSplitterTestHelper("", new String[] {}); |
| 203 | } |
| 204 | |
| 205 | @SmallTest |
| 206 | public void testStringSplitterWithLeadingEmptyString() { |
| 207 | stringSplitterTestHelper(",a,b,cde", new String[] {"", "a", "b", "cde"}); |
| 208 | } |
| 209 | |
| 210 | @SmallTest |
| 211 | public void testStringSplitterWithInternalEmptyString() { |
| 212 | stringSplitterTestHelper("a,b,,cde", new String[] {"a", "b", "", "cde"}); |
| 213 | } |
| 214 | |
| 215 | @SmallTest |
| 216 | public void testStringSplitterWithTrailingEmptyString() { |
| 217 | // A single trailing emtpy string should be ignored. |
| 218 | stringSplitterTestHelper("a,b,cde,", new String[] {"a", "b", "cde"}); |
| 219 | } |
| 220 | |
| 221 | private void stringSplitterTestHelper(String string, String[] expectedStrings) { |
| 222 | TextUtils.StringSplitter splitter = new TextUtils.SimpleStringSplitter(','); |
| 223 | splitter.setString(string); |
| 224 | List<String> strings = Lists.newArrayList(); |
| 225 | for (String s : splitter) { |
| 226 | strings.add(s); |
| 227 | } |
| 228 | MoreAsserts.assertEquals(expectedStrings, strings.toArray(new String[]{})); |
| 229 | } |
| 230 | |
| 231 | @SmallTest |
| 232 | public void testTrim() { |
| 233 | String[] strings = { "abc", " abc", " abc", "abc ", "abc ", |
| 234 | " abc ", " abc ", "\nabc\n", "\nabc", "abc\n" }; |
| 235 | |
| 236 | for (String s : strings) { |
| 237 | assertEquals(s.trim().length(), TextUtils.getTrimmedLength(s)); |
| 238 | } |
| 239 | } |
| 240 | |
The Android Open Source Project | ee7e6a7 | 2010-06-03 09:03:58 -0700 | [diff] [blame] | 241 | @SmallTest |
| 242 | public void testRfc822TokenizerFullAddress() { |
| 243 | Rfc822Token[] tokens = Rfc822Tokenizer.tokenize("Foo Bar (something) <foo@google.com>"); |
| 244 | assertNotNull(tokens); |
| 245 | assertEquals(1, tokens.length); |
| 246 | assertEquals("foo@google.com", tokens[0].getAddress()); |
| 247 | assertEquals("Foo Bar", tokens[0].getName()); |
| 248 | assertEquals("something",tokens[0].getComment()); |
| 249 | } |
| 250 | |
| 251 | @SmallTest |
| 252 | public void testRfc822TokenizeItemWithError() { |
| 253 | Rfc822Token[] tokens = Rfc822Tokenizer.tokenize("\"Foo Bar\\"); |
| 254 | assertNotNull(tokens); |
| 255 | assertEquals(1, tokens.length); |
| 256 | assertEquals("Foo Bar", tokens[0].getAddress()); |
| 257 | } |
| 258 | |
Mattias Niklewski | 114f98a | 2011-01-18 14:27:23 +0100 | [diff] [blame] | 259 | @SmallTest |
| 260 | public void testRfc822FindToken() { |
| 261 | Rfc822Tokenizer tokenizer = new Rfc822Tokenizer(); |
| 262 | // 0 1 2 3 4 |
| 263 | // 0 1234 56789012345678901234 5678 90123456789012345 |
| 264 | String address = "\"Foo\" <foo@google.com>, \"Bar\" <bar@google.com>"; |
| 265 | assertEquals(0, tokenizer.findTokenStart(address, 21)); |
| 266 | assertEquals(22, tokenizer.findTokenEnd(address, 21)); |
| 267 | assertEquals(24, tokenizer.findTokenStart(address, 25)); |
| 268 | assertEquals(46, tokenizer.findTokenEnd(address, 25)); |
| 269 | } |
| 270 | |
| 271 | @SmallTest |
| 272 | public void testRfc822FindTokenWithError() { |
| 273 | assertEquals(9, new Rfc822Tokenizer().findTokenEnd("\"Foo Bar\\", 0)); |
| 274 | } |
| 275 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 276 | @LargeTest |
| 277 | public void testEllipsize() { |
| 278 | CharSequence s1 = "The quick brown fox jumps over \u00FEhe lazy dog."; |
| 279 | CharSequence s2 = new Wrapper(s1); |
| 280 | Spannable s3 = new SpannableString(s1); |
| 281 | s3.setSpan(new StyleSpan(0), 5, 10, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); |
| 282 | TextPaint p = new TextPaint(); |
Eric Fischer | 1f0dac3 | 2009-07-01 18:03:09 -0700 | [diff] [blame] | 283 | p.setFlags(p.getFlags() & ~p.DEV_KERN_TEXT_FLAG); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 284 | |
| 285 | for (int i = 0; i < 100; i++) { |
| 286 | for (int j = 0; j < 3; j++) { |
| 287 | TextUtils.TruncateAt kind = null; |
| 288 | |
| 289 | switch (j) { |
| 290 | case 0: |
| 291 | kind = TextUtils.TruncateAt.START; |
| 292 | break; |
| 293 | |
| 294 | case 1: |
| 295 | kind = TextUtils.TruncateAt.END; |
| 296 | break; |
| 297 | |
| 298 | case 2: |
| 299 | kind = TextUtils.TruncateAt.MIDDLE; |
| 300 | break; |
| 301 | } |
| 302 | |
| 303 | String out1 = TextUtils.ellipsize(s1, p, i, kind).toString(); |
| 304 | String out2 = TextUtils.ellipsize(s2, p, i, kind).toString(); |
| 305 | String out3 = TextUtils.ellipsize(s3, p, i, kind).toString(); |
| 306 | |
| 307 | String keep1 = TextUtils.ellipsize(s1, p, i, kind, true, null).toString(); |
| 308 | String keep2 = TextUtils.ellipsize(s2, p, i, kind, true, null).toString(); |
| 309 | String keep3 = TextUtils.ellipsize(s3, p, i, kind, true, null).toString(); |
| 310 | |
| 311 | String trim1 = keep1.replace("\uFEFF", ""); |
| 312 | |
| 313 | // Are all normal output strings identical? |
| 314 | assertEquals("wid " + i + " pass " + j, out1, out2); |
| 315 | assertEquals("wid " + i + " pass " + j, out2, out3); |
| 316 | |
| 317 | // Are preserved output strings identical? |
| 318 | assertEquals("wid " + i + " pass " + j, keep1, keep2); |
| 319 | assertEquals("wid " + i + " pass " + j, keep2, keep3); |
| 320 | |
| 321 | // Does trimming padding from preserved yield normal? |
| 322 | assertEquals("wid " + i + " pass " + j, out1, trim1); |
| 323 | |
| 324 | // Did preserved output strings preserve length? |
| 325 | assertEquals("wid " + i + " pass " + j, keep1.length(), s1.length()); |
| 326 | |
| 327 | // Does the output string actually fit in the space? |
| 328 | assertTrue("wid " + i + " pass " + j, p.measureText(out1) <= i); |
| 329 | |
| 330 | // Is the padded output the same width as trimmed output? |
| 331 | assertTrue("wid " + i + " pass " + j, p.measureText(keep1) == p.measureText(out1)); |
| 332 | } |
| 333 | } |
| 334 | } |
| 335 | |
Brad Fitzpatrick | 11fe181 | 2010-09-10 16:07:52 -0700 | [diff] [blame] | 336 | @SmallTest |
| 337 | public void testDelimitedStringContains() { |
| 338 | assertFalse(TextUtils.delimitedStringContains("", ',', null)); |
| 339 | assertFalse(TextUtils.delimitedStringContains(null, ',', "")); |
| 340 | // Whole match |
| 341 | assertTrue(TextUtils.delimitedStringContains("gps", ',', "gps")); |
| 342 | // At beginning. |
| 343 | assertTrue(TextUtils.delimitedStringContains("gps,gpsx,network,mock", ',', "gps")); |
| 344 | assertTrue(TextUtils.delimitedStringContains("gps,network,mock", ',', "gps")); |
| 345 | // In middle, both without, before & after a false match. |
| 346 | assertTrue(TextUtils.delimitedStringContains("network,gps,mock", ',', "gps")); |
| 347 | assertTrue(TextUtils.delimitedStringContains("network,gps,gpsx,mock", ',', "gps")); |
| 348 | assertTrue(TextUtils.delimitedStringContains("network,gpsx,gps,mock", ',', "gps")); |
| 349 | // At the end. |
| 350 | assertTrue(TextUtils.delimitedStringContains("network,mock,gps", ',', "gps")); |
| 351 | assertTrue(TextUtils.delimitedStringContains("network,mock,gpsx,gps", ',', "gps")); |
| 352 | // Not present (but with a false match) |
| 353 | assertFalse(TextUtils.delimitedStringContains("network,mock,gpsx", ',', "gps")); |
| 354 | } |
| 355 | |
Martin Wallgren | cee2051 | 2011-04-07 14:45:43 +0200 | [diff] [blame] | 356 | @SmallTest |
| 357 | public void testCharSequenceCreator() { |
| 358 | Parcel p = Parcel.obtain(); |
| 359 | TextUtils.writeToParcel(null, p, 0); |
| 360 | CharSequence text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| 361 | assertNull("null CharSequence should generate null from parcel", text); |
| 362 | p = Parcel.obtain(); |
| 363 | TextUtils.writeToParcel("test", p, 0); |
| 364 | text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| 365 | assertEquals("conversion to/from parcel failed", "test", text); |
| 366 | } |
| 367 | |
| 368 | @SmallTest |
| 369 | public void testCharSequenceCreatorNull() { |
| 370 | Parcel p; |
| 371 | CharSequence text; |
| 372 | p = Parcel.obtain(); |
| 373 | TextUtils.writeToParcel(null, p, 0); |
| 374 | p.setDataPosition(0); |
| 375 | text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| 376 | assertNull("null CharSequence should generate null from parcel", text); |
| 377 | } |
| 378 | |
| 379 | @SmallTest |
| 380 | public void testCharSequenceCreatorSpannable() { |
| 381 | Parcel p; |
| 382 | CharSequence text; |
| 383 | p = Parcel.obtain(); |
| 384 | TextUtils.writeToParcel(new SpannableString("test"), p, 0); |
| 385 | p.setDataPosition(0); |
| 386 | text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| 387 | assertEquals("conversion to/from parcel failed", "test", text.toString()); |
| 388 | } |
| 389 | |
| 390 | @SmallTest |
| 391 | public void testCharSequenceCreatorString() { |
| 392 | Parcel p; |
| 393 | CharSequence text; |
| 394 | p = Parcel.obtain(); |
| 395 | TextUtils.writeToParcel("test", p, 0); |
| 396 | p.setDataPosition(0); |
| 397 | text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(p); |
| 398 | assertEquals("conversion to/from parcel failed", "test", text.toString()); |
| 399 | } |
| 400 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 401 | /** |
| 402 | * CharSequence wrapper for testing the cases where text is copied into |
| 403 | * a char array instead of working from a String or a Spanned. |
| 404 | */ |
| 405 | private static class Wrapper implements CharSequence { |
| 406 | private CharSequence mString; |
| 407 | |
| 408 | public Wrapper(CharSequence s) { |
| 409 | mString = s; |
| 410 | } |
| 411 | |
| 412 | public int length() { |
| 413 | return mString.length(); |
| 414 | } |
| 415 | |
| 416 | public char charAt(int off) { |
| 417 | return mString.charAt(off); |
| 418 | } |
| 419 | |
| 420 | public String toString() { |
| 421 | return mString.toString(); |
| 422 | } |
| 423 | |
| 424 | public CharSequence subSequence(int start, int end) { |
| 425 | return new Wrapper(mString.subSequence(start, end)); |
| 426 | } |
| 427 | } |
| 428 | } |