J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* @test |
| 25 | * @bug 5067405 |
| 26 | * @summary Basic test for classes which implement Appendable. |
| 27 | */ |
| 28 | |
| 29 | import java.io.BufferedReader; |
| 30 | import java.io.BufferedWriter; |
| 31 | import java.io.ByteArrayOutputStream; |
| 32 | import java.io.CharArrayWriter; |
| 33 | import java.io.File; |
| 34 | import java.io.FileReader; |
| 35 | import java.io.FileWriter; |
| 36 | import java.io.IOException; |
| 37 | import java.io.OutputStreamWriter; |
| 38 | import java.io.PrintStream; |
| 39 | import java.io.PrintWriter; |
| 40 | import java.io.StringWriter; |
| 41 | import java.io.Writer; |
| 42 | import java.nio.ByteBuffer; |
| 43 | import java.nio.CharBuffer; |
| 44 | |
| 45 | interface BasicRunnable extends Runnable { |
| 46 | void init(Appendable a, String csq, String exp); |
| 47 | Appendable reset(Appendable csq); |
| 48 | } |
| 49 | |
| 50 | public class Basic { |
| 51 | |
| 52 | private static final String s = "Beware the Jabberwock, my son!"; |
| 53 | private static CharArrayWriter gw = new CharArrayWriter(); |
| 54 | private static ByteArrayOutputStream gos = new ByteArrayOutputStream(); |
| 55 | |
| 56 | private static File newFile() { |
| 57 | File f = null; |
| 58 | try { |
| 59 | f = File.createTempFile("append", ".txt"); |
| 60 | f.deleteOnExit(); |
| 61 | } catch (IOException x) { |
| 62 | fail(x); |
| 63 | } |
| 64 | return f; |
| 65 | } |
| 66 | private static File gf = newFile(); |
| 67 | |
| 68 | private static int fail = 0; |
| 69 | private static int pass = 0; |
| 70 | |
| 71 | private static Throwable first; |
| 72 | |
| 73 | static void pass() { |
| 74 | pass++; |
| 75 | } |
| 76 | |
| 77 | static void fail(Throwable ex) { |
| 78 | if (first == null) |
| 79 | first = ex; |
| 80 | System.err.println("FAILED: unexpected exception"); |
| 81 | fail++; |
| 82 | } |
| 83 | |
| 84 | static void fail(String fs, Throwable ex) { |
| 85 | String s = "'" + fs + "': " + ex.getClass().getName() + " not thrown"; |
| 86 | if (first == null) |
| 87 | first = ex; |
| 88 | System.err.println("FAILED: " + s); |
| 89 | fail++; |
| 90 | } |
| 91 | |
| 92 | static void fail(String fs, String exp, String got) { |
| 93 | String s = "'" + fs + "': Expected '" + exp + "', got '" + got + "'"; |
| 94 | if (first == null) |
| 95 | first = new RuntimeException(s); |
| 96 | System.err.println("FAILED: " + s); |
| 97 | fail++; |
| 98 | } |
| 99 | |
| 100 | static void ck(String s, String exp, String got) { |
| 101 | if (!exp.equals(got)) |
| 102 | fail(s, exp, got); |
| 103 | else |
| 104 | pass(); |
| 105 | } |
| 106 | |
| 107 | private static BasicRunnable testBufferedWriter = |
| 108 | new BasicRunnable() { |
| 109 | private String csn, exp; |
| 110 | public void init(Appendable bw, String csn, String exp) { |
| 111 | try { |
| 112 | ((BufferedWriter)bw).flush(); |
| 113 | } catch (IOException x) { |
| 114 | fail(x); |
| 115 | } |
| 116 | this.csn = csn; |
| 117 | this.exp = exp; |
| 118 | } |
| 119 | public void run() { |
| 120 | ck("BufferedWriter.append(" + csn + ")", exp, gw.toString()); |
| 121 | } |
| 122 | public Appendable reset(Appendable bw) { |
| 123 | gw.reset(); |
| 124 | return bw; |
| 125 | }}; |
| 126 | |
| 127 | private static BasicRunnable testCharArrayWriter = |
| 128 | new BasicRunnable() { |
| 129 | private String csn, exp; |
| 130 | private CharArrayWriter cw; |
| 131 | public void init(Appendable cw, String csn, String exp) { |
| 132 | this.cw = (CharArrayWriter)cw; |
| 133 | this.csn = csn; |
| 134 | this.exp = exp; |
| 135 | } |
| 136 | public void run() { |
| 137 | ck("CharArrayWriter.append(" + csn + ")", exp, cw.toString()); |
| 138 | } |
| 139 | public Appendable reset(Appendable cw) { |
| 140 | ((CharArrayWriter)cw).reset(); |
| 141 | return cw; |
| 142 | }}; |
| 143 | |
| 144 | private static BasicRunnable testFileWriter = |
| 145 | new BasicRunnable() { |
| 146 | private String csn, exp; |
| 147 | public void init(Appendable fw, String csn, String exp) { |
| 148 | try { |
| 149 | ((FileWriter)fw).flush(); |
| 150 | } catch (IOException x) { |
| 151 | fail(x); |
| 152 | } |
| 153 | this.csn = csn; |
| 154 | this.exp = exp; |
| 155 | } |
| 156 | public void run() { |
| 157 | StringBuilder sb = new StringBuilder(); |
| 158 | try { |
| 159 | BufferedReader in = new BufferedReader(new FileReader(gf)); |
| 160 | String line; |
| 161 | while (true) { |
| 162 | if ((line = in.readLine()) == null) |
| 163 | break; |
| 164 | sb.append(line); |
| 165 | } |
| 166 | } catch (IOException x) { |
| 167 | fail(x); |
| 168 | } |
| 169 | ck("FileWriter.append(" + csn + ")", exp, sb.toString()); |
| 170 | } |
| 171 | public Appendable reset(Appendable fw) { |
| 172 | try { |
| 173 | fw = new FileWriter(gf); |
| 174 | } catch (IOException x) { |
| 175 | fail(x); |
| 176 | } |
| 177 | return fw; |
| 178 | }}; |
| 179 | |
| 180 | private static BasicRunnable testOutputStreamWriter = |
| 181 | new BasicRunnable() { |
| 182 | private String csn, exp; |
| 183 | public void init(Appendable osw, String csn, String exp) { |
| 184 | try { |
| 185 | ((OutputStreamWriter)osw).flush(); |
| 186 | } catch (IOException x) { |
| 187 | fail(x); |
| 188 | } |
| 189 | this.csn = csn; |
| 190 | this.exp = exp; |
| 191 | } |
| 192 | public void run() { |
| 193 | ck("OutputStreamWriter.append(" + csn + ")", exp, gos.toString()); |
| 194 | } |
| 195 | public Appendable reset(Appendable osw) { |
| 196 | gos.reset(); |
| 197 | return osw; |
| 198 | }}; |
| 199 | |
| 200 | private static BasicRunnable testPrintWriter = |
| 201 | new BasicRunnable() { |
| 202 | private String csn, exp; |
| 203 | public void init(Appendable pw, String csn, String exp) { |
| 204 | ((PrintWriter)pw).flush(); |
| 205 | this.csn = csn; |
| 206 | this.exp = exp; |
| 207 | } |
| 208 | public void run() { |
| 209 | ck("PrintWriter.append(" + csn + ")", exp, gw.toString()); |
| 210 | } |
| 211 | public Appendable reset(Appendable pw) { |
| 212 | gw.reset(); |
| 213 | return pw; |
| 214 | }}; |
| 215 | |
| 216 | private static BasicRunnable testStringWriter = |
| 217 | new BasicRunnable() { |
| 218 | private String csn, exp; |
| 219 | private StringWriter sw; |
| 220 | public void init(Appendable sw, String csn, String exp) { |
| 221 | this.sw = (StringWriter)sw; |
| 222 | this.csn = csn; |
| 223 | this.exp = exp; |
| 224 | } |
| 225 | public void run() { |
| 226 | ck("StringWriter.append(" + csn + ")", exp, sw.toString()); |
| 227 | } |
| 228 | public Appendable reset(Appendable sw) { |
| 229 | return new StringWriter(); |
| 230 | }}; |
| 231 | |
| 232 | private static BasicRunnable testPrintStream = |
| 233 | new BasicRunnable() { |
| 234 | private String csn, exp; |
| 235 | public void init(Appendable ps, String csn, String exp) { |
| 236 | ((PrintStream)ps).flush(); |
| 237 | this.csn = csn; |
| 238 | this.exp = exp; |
| 239 | } |
| 240 | public void run() { |
| 241 | ck("PrintStream.append(" + csn + ")", exp, gos.toString()); |
| 242 | } |
| 243 | public Appendable reset(Appendable ps) { |
| 244 | gos.reset(); |
| 245 | return ps; |
| 246 | }}; |
| 247 | |
| 248 | private static BasicRunnable testCharBuffer = |
| 249 | new BasicRunnable() { |
| 250 | private String csn, exp; |
| 251 | private CharBuffer cb; |
| 252 | public void init(Appendable cb, String csn, String exp) { |
| 253 | this.cb = (CharBuffer)cb; |
| 254 | this.csn = csn; |
| 255 | this.exp = exp; |
| 256 | } |
| 257 | public void run() { |
| 258 | cb.limit(cb.position()).rewind(); |
| 259 | ck("CharBuffer.append(" + csn + ")", exp, cb.toString()); |
| 260 | } |
| 261 | public Appendable reset(Appendable cb) { |
| 262 | ((CharBuffer)cb).clear(); |
| 263 | return cb; |
| 264 | }}; |
| 265 | |
| 266 | private static BasicRunnable testStringBuffer = |
| 267 | new BasicRunnable() { |
| 268 | private String csn, exp; |
| 269 | private StringBuffer sb; |
| 270 | public void init(Appendable sb, String csn, String exp) { |
| 271 | this.sb = (StringBuffer)sb; |
| 272 | this.csn = csn; |
| 273 | this.exp = exp; |
| 274 | } |
| 275 | public void run() { |
| 276 | ck("StringBuffer.append(" + csn + ")", exp, sb.toString()); |
| 277 | } |
| 278 | public Appendable reset(Appendable sb) { |
| 279 | return new StringBuffer(); |
| 280 | }}; |
| 281 | |
| 282 | private static BasicRunnable testStringBuilder = |
| 283 | new BasicRunnable() { |
| 284 | private String csn, exp; |
| 285 | private StringBuilder sb; |
| 286 | public void init(Appendable sb, String csn, String exp) { |
| 287 | this.sb = (StringBuilder)sb; |
| 288 | this.csn = csn; |
| 289 | this.exp = exp; |
| 290 | } |
| 291 | public void run() { |
| 292 | ck("StringBuilder.append(" + csn + ")", exp, sb.toString()); |
| 293 | } |
| 294 | public Appendable reset(Appendable sb) { |
| 295 | return new StringBuilder(); |
| 296 | }}; |
| 297 | |
| 298 | private static void test(Appendable a, CharSequence csq, BasicRunnable thunk) { |
| 299 | // appends that should always work |
| 300 | int [][] sp = { { 0, 0 }, { 11, 11 }, { 11, 21 }, { 0, 7 }, |
| 301 | { 0, s.length() }, { s.length(), s.length() }, |
| 302 | }; |
| 303 | for (int j = 0; j < sp.length; j++) { |
| 304 | int start = sp[j][0]; |
| 305 | int end = sp[j][1]; |
| 306 | try { |
| 307 | thunk.init(a.append(csq, start, end), |
| 308 | csq.getClass().getName(), |
| 309 | s.subSequence(start, end).toString()); |
| 310 | thunk.run(); |
| 311 | a = thunk.reset(a); |
| 312 | } catch (IOException x) { |
| 313 | fail(x); |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | // appends that should always throw IndexOutOfBoundsException |
| 318 | int [][] sf = { { -1, 0 }, { 0, -1 }, { 11, 10 }, |
| 319 | { 0, s.length() + 1}, |
| 320 | }; |
| 321 | for (int j = 0; j < sf.length; j++) { |
| 322 | int start = sf[j][0]; |
| 323 | int end = sf[j][1]; |
| 324 | try { |
| 325 | a.append(csq, start, end); |
| 326 | fail("start = " + start + ", end = " + end, |
| 327 | new IndexOutOfBoundsException()); |
| 328 | a = thunk.reset(a); |
| 329 | } catch (IndexOutOfBoundsException x) { |
| 330 | pass(); |
| 331 | } catch (IOException x) { |
| 332 | fail(x); |
| 333 | } |
| 334 | } |
| 335 | |
| 336 | // appends of null |
| 337 | int start = 1; |
| 338 | int end = 2; |
| 339 | try { |
| 340 | thunk.init(a.append(null, start, end), "null", |
| 341 | "null".subSequence(start, end).toString()); |
| 342 | thunk.run(); |
| 343 | a = thunk.reset(a); |
| 344 | } catch (IOException x) { |
| 345 | fail(x); |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | public static void main(String [] args) throws Exception { |
| 350 | // CharSequences |
| 351 | CharBuffer cb = CharBuffer.allocate(128).put(s); |
| 352 | cb.limit(s.length()).rewind(); |
| 353 | CharBuffer dcb = ByteBuffer.allocateDirect(128).asCharBuffer().put(s); |
| 354 | dcb.limit(s.length()).rewind(); |
| 355 | CharSequence [] ca = { s, |
| 356 | new StringBuffer(s), |
| 357 | new StringBuilder(s), |
| 358 | cb, |
| 359 | dcb, |
| 360 | }; |
| 361 | |
| 362 | // Appendables/Writers |
| 363 | Object [][] wa = { { new CharArrayWriter(), testCharArrayWriter }, |
| 364 | { new BufferedWriter(gw), testBufferedWriter }, |
| 365 | // abstract, no implementing classes in jdk |
| 366 | // { new FilterWriter(), testFilterWriter }, |
| 367 | { new FileWriter(gf), testFileWriter }, |
| 368 | { new OutputStreamWriter(gos), testOutputStreamWriter }, |
| 369 | // covered by previous two test cases |
| 370 | // { new PipedWriter(gw), testPipedWriter }, |
| 371 | { new PrintWriter(gw), testPrintWriter }, |
| 372 | { new StringWriter(), testStringWriter }, |
| 373 | }; |
| 374 | |
| 375 | for (int i = 0; i < ca.length; i++) { |
| 376 | CharSequence a = ca[i]; |
| 377 | for (int j = 0; j < wa.length; j++) |
| 378 | test((Writer)wa[j][0], a, (BasicRunnable)wa[j][1]); |
| 379 | |
| 380 | // other Appendables |
| 381 | test(new PrintStream(gos), a, testPrintStream); |
| 382 | test(CharBuffer.allocate(128), a, testCharBuffer); |
| 383 | test(ByteBuffer.allocateDirect(128).asCharBuffer(), a, testCharBuffer); |
| 384 | test(new StringBuffer(), a, testStringBuffer); |
| 385 | test(new StringBuilder(), a, testStringBuilder); |
| 386 | } |
| 387 | |
| 388 | if (fail != 0) |
| 389 | throw new RuntimeException((fail + pass) + " tests: " |
| 390 | + fail + " failure(s), first", first); |
| 391 | else |
| 392 | System.out.println("all " + (fail + pass) + " tests passed"); |
| 393 | } |
| 394 | } |