BasicShort.java revision 6073:cea72c2bf071
1/* 2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* Type-specific source code for unit test 25 * 26 * Regenerate the BasicX classes via genBasic.sh whenever this file changes. 27 * We check in the generated source files so that the test tree can be used 28 * independently of the rest of the source tree. 29 */ 30 31// -- This file was mechanically generated: Do not edit! -- // 32 33import java.nio.*; 34import java.lang.reflect.Method; 35 36 37public class BasicShort 38 extends Basic 39{ 40 41 private static final short[] VALUES = { 42 Short.MIN_VALUE, 43 (short) -1, 44 (short) 0, 45 (short) 1, 46 Short.MAX_VALUE, 47 48 49 50 51 52 53 54 55 56 57 58 59 }; 60 61 private static void relGet(ShortBuffer b) { 62 int n = b.capacity(); 63 short v; 64 for (int i = 0; i < n; i++) 65 ck(b, (long)b.get(), (long)((short)ic(i))); 66 b.rewind(); 67 } 68 69 private static void relGet(ShortBuffer b, int start) { 70 int n = b.remaining(); 71 short v; 72 for (int i = start; i < n; i++) 73 ck(b, (long)b.get(), (long)((short)ic(i))); 74 b.rewind(); 75 } 76 77 private static void absGet(ShortBuffer b) { 78 int n = b.capacity(); 79 short v; 80 for (int i = 0; i < n; i++) 81 ck(b, (long)b.get(), (long)((short)ic(i))); 82 b.rewind(); 83 } 84 85 private static void bulkGet(ShortBuffer b) { 86 int n = b.capacity(); 87 short[] a = new short[n + 7]; 88 b.get(a, 7, n); 89 for (int i = 0; i < n; i++) 90 ck(b, (long)a[i + 7], (long)((short)ic(i))); 91 } 92 93 private static void relPut(ShortBuffer b) { 94 int n = b.capacity(); 95 b.clear(); 96 for (int i = 0; i < n; i++) 97 b.put((short)ic(i)); 98 b.flip(); 99 } 100 101 private static void absPut(ShortBuffer b) { 102 int n = b.capacity(); 103 b.clear(); 104 for (int i = 0; i < n; i++) 105 b.put(i, (short)ic(i)); 106 b.limit(n); 107 b.position(0); 108 } 109 110 private static void bulkPutArray(ShortBuffer b) { 111 int n = b.capacity(); 112 b.clear(); 113 short[] a = new short[n + 7]; 114 for (int i = 0; i < n; i++) 115 a[i + 7] = (short)ic(i); 116 b.put(a, 7, n); 117 b.flip(); 118 } 119 120 private static void bulkPutBuffer(ShortBuffer b) { 121 int n = b.capacity(); 122 b.clear(); 123 ShortBuffer c = ShortBuffer.allocate(n + 7); 124 c.position(7); 125 for (int i = 0; i < n; i++) 126 c.put((short)ic(i)); 127 c.flip(); 128 c.position(7); 129 b.put(c); 130 b.flip(); 131 } 132 133 //6231529 134 private static void callReset(ShortBuffer b) { 135 b.position(0); 136 b.mark(); 137 138 b.duplicate().reset(); 139 b.asReadOnlyBuffer().reset(); 140 } 141 142 143 144 // 6221101-6234263 145 146 private static void putBuffer() { 147 final int cap = 10; 148 149 ShortBuffer direct1 = ByteBuffer.allocateDirect(cap).asShortBuffer(); 150 ShortBuffer nondirect1 = ByteBuffer.allocate(cap).asShortBuffer(); 151 direct1.put(nondirect1); 152 153 ShortBuffer direct2 = ByteBuffer.allocateDirect(cap).asShortBuffer(); 154 ShortBuffer nondirect2 = ByteBuffer.allocate(cap).asShortBuffer(); 155 nondirect2.put(direct2); 156 157 ShortBuffer direct3 = ByteBuffer.allocateDirect(cap).asShortBuffer(); 158 ShortBuffer direct4 = ByteBuffer.allocateDirect(cap).asShortBuffer(); 159 direct3.put(direct4); 160 161 ShortBuffer nondirect3 = ByteBuffer.allocate(cap).asShortBuffer(); 162 ShortBuffer nondirect4 = ByteBuffer.allocate(cap).asShortBuffer(); 163 nondirect3.put(nondirect4); 164 } 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 private static void checkSlice(ShortBuffer b, ShortBuffer slice) { 183 ck(slice, 0, slice.position()); 184 ck(slice, b.remaining(), slice.limit()); 185 ck(slice, b.remaining(), slice.capacity()); 186 if (b.isDirect() != slice.isDirect()) 187 fail("Lost direction", slice); 188 if (b.isReadOnly() != slice.isReadOnly()) 189 fail("Lost read-only", slice); 190 } 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 private static void fail(String problem, 333 ShortBuffer xb, ShortBuffer yb, 334 short x, short y) { 335 fail(problem + String.format(": x=%s y=%s", x, y), xb, yb); 336 } 337 338 private static void tryCatch(Buffer b, Class<?> ex, Runnable thunk) { 339 boolean caught = false; 340 try { 341 thunk.run(); 342 } catch (Throwable x) { 343 if (ex.isAssignableFrom(x.getClass())) { 344 caught = true; 345 } else { 346 fail(x.getMessage() + " not expected"); 347 } 348 } 349 if (!caught) 350 fail(ex.getName() + " not thrown", b); 351 } 352 353 private static void tryCatch(short [] t, Class<?> ex, Runnable thunk) { 354 tryCatch(ShortBuffer.wrap(t), ex, thunk); 355 } 356 357 public static void test(int level, final ShortBuffer b, boolean direct) { 358 359 show(level, b); 360 361 if (direct != b.isDirect()) 362 fail("Wrong direction", b); 363 364 // Gets and puts 365 366 relPut(b); 367 relGet(b); 368 absGet(b); 369 bulkGet(b); 370 371 absPut(b); 372 relGet(b); 373 absGet(b); 374 bulkGet(b); 375 376 bulkPutArray(b); 377 relGet(b); 378 379 bulkPutBuffer(b); 380 relGet(b); 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 // Compact 421 422 relPut(b); 423 b.position(13); 424 b.compact(); 425 b.flip(); 426 relGet(b, 13); 427 428 // Exceptions 429 430 relPut(b); 431 b.limit(b.capacity() / 2); 432 b.position(b.limit()); 433 434 tryCatch(b, BufferUnderflowException.class, new Runnable() { 435 public void run() { 436 b.get(); 437 }}); 438 439 tryCatch(b, BufferOverflowException.class, new Runnable() { 440 public void run() { 441 b.put((short)42); 442 }}); 443 444 // The index must be non-negative and lesss than the buffer's limit. 445 tryCatch(b, IndexOutOfBoundsException.class, new Runnable() { 446 public void run() { 447 b.get(b.limit()); 448 }}); 449 tryCatch(b, IndexOutOfBoundsException.class, new Runnable() { 450 public void run() { 451 b.get(-1); 452 }}); 453 454 tryCatch(b, IndexOutOfBoundsException.class, new Runnable() { 455 public void run() { 456 b.put(b.limit(), (short)42); 457 }}); 458 459 tryCatch(b, InvalidMarkException.class, new Runnable() { 460 public void run() { 461 b.position(0); 462 b.mark(); 463 b.compact(); 464 b.reset(); 465 }}); 466 467 // Values 468 469 b.clear(); 470 b.put((short)0); 471 b.put((short)-1); 472 b.put((short)1); 473 b.put(Short.MAX_VALUE); 474 b.put(Short.MIN_VALUE); 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 short v; 493 b.flip(); 494 ck(b, b.get(), 0); 495 ck(b, b.get(), (short)-1); 496 ck(b, b.get(), 1); 497 ck(b, b.get(), Short.MAX_VALUE); 498 ck(b, b.get(), Short.MIN_VALUE); 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 // Comparison 522 b.rewind(); 523 ShortBuffer b2 = ShortBuffer.allocate(b.capacity()); 524 b2.put(b); 525 b2.flip(); 526 b.position(2); 527 b2.position(2); 528 if (!b.equals(b2)) { 529 for (int i = 2; i < b.limit(); i++) { 530 short x = b.get(i); 531 short y = b2.get(i); 532 if (x != y 533 534 535 536 537 538 539 ) 540 out.println("[" + i + "] " + x + " != " + y); 541 } 542 fail("Identical buffers not equal", b, b2); 543 } 544 if (b.compareTo(b2) != 0) 545 fail("Comparison to identical buffer != 0", b, b2); 546 547 b.limit(b.limit() + 1); 548 b.position(b.limit() - 1); 549 b.put((short)99); 550 b.rewind(); 551 b2.rewind(); 552 if (b.equals(b2)) 553 fail("Non-identical buffers equal", b, b2); 554 if (b.compareTo(b2) <= 0) 555 fail("Comparison to shorter buffer <= 0", b, b2); 556 b.limit(b.limit() - 1); 557 558 b.put(2, (short)42); 559 if (b.equals(b2)) 560 fail("Non-identical buffers equal", b, b2); 561 if (b.compareTo(b2) <= 0) 562 fail("Comparison to lesser buffer <= 0", b, b2); 563 564 // Check equals and compareTo with interesting values 565 for (short x : VALUES) { 566 ShortBuffer xb = ShortBuffer.wrap(new short[] { x }); 567 if (xb.compareTo(xb) != 0) { 568 fail("compareTo not reflexive", xb, xb, x, x); 569 } 570 if (! xb.equals(xb)) { 571 fail("equals not reflexive", xb, xb, x, x); 572 } 573 for (short y : VALUES) { 574 ShortBuffer yb = ShortBuffer.wrap(new short[] { y }); 575 if (xb.compareTo(yb) != - yb.compareTo(xb)) { 576 fail("compareTo not anti-symmetric", 577 xb, yb, x, y); 578 } 579 if ((xb.compareTo(yb) == 0) != xb.equals(yb)) { 580 fail("compareTo inconsistent with equals", 581 xb, yb, x, y); 582 } 583 if (xb.compareTo(yb) != Short.compare(x, y)) { 584 585 586 587 588 589 590 fail("Incorrect results for ShortBuffer.compareTo", 591 xb, yb, x, y); 592 } 593 if (xb.equals(yb) != ((x == y) || ((x != x) && (y != y)))) { 594 fail("Incorrect results for ShortBuffer.equals", 595 xb, yb, x, y); 596 } 597 } 598 } 599 600 // Sub, dup 601 602 relPut(b); 603 relGet(b.duplicate()); 604 b.position(13); 605 relGet(b.duplicate(), 13); 606 relGet(b.duplicate().slice(), 13); 607 relGet(b.slice(), 13); 608 relGet(b.slice().duplicate(), 13); 609 610 // Slice 611 612 b.position(5); 613 ShortBuffer sb = b.slice(); 614 checkSlice(b, sb); 615 b.position(0); 616 ShortBuffer sb2 = sb.slice(); 617 checkSlice(sb, sb2); 618 619 if (!sb.equals(sb2)) 620 fail("Sliced slices do not match", sb, sb2); 621 if ((sb.hasArray()) && (sb.arrayOffset() != sb2.arrayOffset())) 622 fail("Array offsets do not match: " 623 + sb.arrayOffset() + " != " + sb2.arrayOffset(), sb, sb2); 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 // Read-only views 657 658 b.rewind(); 659 final ShortBuffer rb = b.asReadOnlyBuffer(); 660 if (!b.equals(rb)) 661 fail("Buffer not equal to read-only view", b, rb); 662 show(level + 1, rb); 663 664 tryCatch(b, ReadOnlyBufferException.class, new Runnable() { 665 public void run() { 666 relPut(rb); 667 }}); 668 669 tryCatch(b, ReadOnlyBufferException.class, new Runnable() { 670 public void run() { 671 absPut(rb); 672 }}); 673 674 tryCatch(b, ReadOnlyBufferException.class, new Runnable() { 675 public void run() { 676 bulkPutArray(rb); 677 }}); 678 679 tryCatch(b, ReadOnlyBufferException.class, new Runnable() { 680 public void run() { 681 bulkPutBuffer(rb); 682 }}); 683 684 // put(ShortBuffer) should not change source position 685 final ShortBuffer src = ShortBuffer.allocate(1); 686 tryCatch(b, ReadOnlyBufferException.class, new Runnable() { 687 public void run() { 688 rb.put(src); 689 }}); 690 ck(src, src.position(), 0); 691 692 tryCatch(b, ReadOnlyBufferException.class, new Runnable() { 693 public void run() { 694 rb.compact(); 695 }}); 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 if (rb.getClass().getName().startsWith("java.nio.Heap")) { 772 773 tryCatch(b, ReadOnlyBufferException.class, new Runnable() { 774 public void run() { 775 rb.array(); 776 }}); 777 778 tryCatch(b, ReadOnlyBufferException.class, new Runnable() { 779 public void run() { 780 rb.arrayOffset(); 781 }}); 782 783 if (rb.hasArray()) 784 fail("Read-only heap buffer's backing array is accessible", 785 rb); 786 787 } 788 789 // Bulk puts from read-only buffers 790 791 b.clear(); 792 rb.rewind(); 793 b.put(rb); 794 795 796 797 798 799 800 801 802 803 804 805 relPut(b); // Required by testViews 806 807 } 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 public static void test(final short [] ba) { 894 int offset = 47; 895 int length = 900; 896 final ShortBuffer b = ShortBuffer.wrap(ba, offset, length); 897 show(0, b); 898 ck(b, b.capacity(), ba.length); 899 ck(b, b.position(), offset); 900 ck(b, b.limit(), offset + length); 901 902 // The offset must be non-negative and no larger than <array.length>. 903 tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() { 904 public void run() { 905 ShortBuffer.wrap(ba, -1, ba.length); 906 }}); 907 tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() { 908 public void run() { 909 ShortBuffer.wrap(ba, ba.length + 1, ba.length); 910 }}); 911 tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() { 912 public void run() { 913 ShortBuffer.wrap(ba, 0, -1); 914 }}); 915 tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() { 916 public void run() { 917 ShortBuffer.wrap(ba, 0, ba.length + 1); 918 }}); 919 920 // A NullPointerException will be thrown if the array is null. 921 tryCatch(ba, NullPointerException.class, new Runnable() { 922 public void run() { 923 ShortBuffer.wrap((short []) null, 0, 5); 924 }}); 925 tryCatch(ba, NullPointerException.class, new Runnable() { 926 public void run() { 927 ShortBuffer.wrap((short []) null); 928 }}); 929 } 930 931 private static void testAllocate() { 932 // An IllegalArgumentException will be thrown for negative capacities. 933 tryCatch((Buffer) null, IllegalArgumentException.class, new Runnable() { 934 public void run() { 935 ShortBuffer.allocate(-1); 936 }}); 937 938 939 940 941 942 943 } 944 945 public static void test() { 946 testAllocate(); 947 test(0, ShortBuffer.allocate(7 * 1024), false); 948 test(0, ShortBuffer.wrap(new short[7 * 1024], 0, 7 * 1024), false); 949 test(new short[1024]); 950 951 952 953 954 955 956 957 958 959 960 callReset(ShortBuffer.allocate(10)); 961 962 963 964 putBuffer(); 965 966 } 967 968} 969