1 /* 2 * Copyright (c) 2014, 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 package javax.xml.xpath.ptests; 25 26 import java.io.IOException; 27 import java.io.InputStream; 28 import java.nio.file.Files; 29 import java.nio.file.Path; 30 import java.nio.file.Paths; 31 import java.util.Iterator; 32 import javax.xml.XMLConstants; 33 import javax.xml.namespace.NamespaceContext; 34 import javax.xml.namespace.QName; 35 import javax.xml.parsers.DocumentBuilderFactory; 36 import javax.xml.parsers.ParserConfigurationException; 37 import javax.xml.xpath.XPath; 38 import static javax.xml.xpath.XPathConstants.BOOLEAN; 39 import static javax.xml.xpath.XPathConstants.NODE; 40 import static javax.xml.xpath.XPathConstants.NODESET; 41 import static javax.xml.xpath.XPathConstants.NUMBER; 42 import static javax.xml.xpath.XPathConstants.STRING; 43 import javax.xml.xpath.XPathExpressionException; 44 import javax.xml.xpath.XPathFactory; 45 import static javax.xml.xpath.ptests.XPathTestConst.XML_DIR; 46 import static jaxp.library.JAXPTestUtilities.failUnexpected; 47 import static org.testng.AssertJUnit.assertEquals; 48 import static org.testng.AssertJUnit.assertNotNull; 49 import static org.testng.AssertJUnit.assertNull; 50 import org.testng.annotations.BeforeTest; 51 import org.testng.annotations.Test; 52 import org.w3c.dom.Attr; 53 import org.w3c.dom.Document; 54 import org.w3c.dom.NodeList; 55 import org.xml.sax.InputSource; 56 import org.xml.sax.SAXException; 57 58 /** 59 * Class containing the test cases for XPath API. 60 */ 61 public class XPathTest { 62 /** 63 * Document object for testing XML file. 64 */ 65 private Document document; 66 67 /** 68 * A XPath for evaluation environment and expressions. 69 */ 70 private XPath xpath; 71 72 /** 73 * A QName using default name space. 74 */ 75 private static final QName TEST_QNAME = new QName(XMLConstants.XML_NS_URI, ""); 76 77 /** 78 * XML File Path. 79 */ 80 private static final Path XML_PATH = Paths.get(XML_DIR + "widgets.xml"); 81 82 /** 83 * An expression name which locate at "/widgets/widget[@name='a']/@quantity" 84 */ 85 private static final String EXPRESSION_NAME_A = "/widgets/widget[@name='a']/@quantity"; 86 87 /** 88 * An expression name which locate at "/widgets/widget[@name='b']/@quantity" 89 */ 90 private static final String EXPRESSION_NAME_B = "/widgets/widget[@name='b']/@quantity"; 91 92 /** 93 * Create Document object and XPath object for every time 94 * @throws ParserConfigurationException If the factory class cannot be 95 * loaded, instantiated 96 * @throws SAXException If any parse errors occur. 97 * @throws IOException If operation on xml file failed. 98 */ 99 @BeforeTest 100 public void setup() throws ParserConfigurationException, SAXException, IOException { 101 document = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(XML_PATH.toFile()); 102 xpath = XPathFactory.newInstance().newXPath(); 103 } 104 105 /** 106 * Test for XPath.evaluate(java.lang.String expression, java.lang.Object 107 * item, QName returnType) which return type is String. 108 */ 109 @Test 110 public void testCheckXPath01() { 111 try { 112 assertEquals(xpath.evaluate(EXPRESSION_NAME_A, document, STRING), "6"); 113 } catch (XPathExpressionException ex) { 114 failUnexpected(ex); 115 } 116 } 117 118 119 /** 120 * Test for XPath.compile(java.lang.String expression) and then 121 * evaluate(java.lang.Object item, QName returnType). 122 */ 123 @Test 124 public void testCheckXPath02() { 125 try { 126 assertEquals(xpath.compile(EXPRESSION_NAME_A).evaluate(document, STRING), "6"); 127 } catch (XPathExpressionException ex) { 128 failUnexpected(ex); 129 } 130 } 131 132 /** 133 * Test for XPath.evaluate(java.lang.String expression, java.lang.Object 134 * item) when the third argument is left off of the XPath.evaluate method, 135 * all expressions are evaluated to a String value. 136 */ 137 @Test 138 public void testCheckXPath03() { 139 try { 140 assertEquals(xpath.evaluate(EXPRESSION_NAME_A, document), "6"); 141 } catch (XPathExpressionException ex) { 142 failUnexpected(ex); 143 } 144 } 145 146 /** 147 * Test for XPath.compile(java.lang.String expression). If expression is 148 * null, should throw NPE. 149 */ 150 @Test(expectedExceptions = NullPointerException.class) 151 public void testCheckXPath04() { 152 try { 153 xpath.compile(null); 154 } catch (XPathExpressionException ex) { 155 failUnexpected(ex); 156 } 157 } 158 159 /** 160 * Test for XPath.compile(java.lang.String expression). If expression cannot 161 * be compiled junk characters, should throw XPathExpressionException. 162 * 163 * @throws XPathExpressionException 164 */ 165 @Test(expectedExceptions = XPathExpressionException.class) 166 public void testCheckXPath05() throws XPathExpressionException { 167 xpath.compile("-*&"); 168 } 169 170 /** 171 * Test for XPath.compile(java.lang.String expression). If expression is 172 * blank, should throw XPathExpressionException 173 * 174 * @throws XPathExpressionException 175 */ 176 @Test(expectedExceptions = XPathExpressionException.class) 177 public void testCheckXPath06() throws XPathExpressionException { 178 xpath.compile(" "); 179 } 180 181 /** 182 * Test for XPath.compile(java.lang.String expression). The expression 183 * cannot be evaluated as this does not exist. 184 */ 185 @Test 186 public void testCheckXPath07() { 187 try { 188 assertEquals(xpath.compile(EXPRESSION_NAME_B).evaluate(document, STRING), ""); 189 } catch (XPathExpressionException ex) { 190 failUnexpected(ex); 191 } 192 193 } 194 195 196 /** 197 * Test for XPath.evaluate(java.lang.String expression, java.lang.Object 198 * item, QName returnType). If String expression is null, should throw NPE 199 */ 200 @Test(expectedExceptions = NullPointerException.class) 201 public void testCheckXPath08() { 202 try { 203 xpath.evaluate(null, document, STRING); 204 } catch (XPathExpressionException ex) { 205 failUnexpected(ex); 206 } 207 } 208 209 /** 210 * Test for XPath.evaluate(java.lang.String expression, java.lang.Object 211 * item, QName returnType). If item is null, should throw NPE. 212 */ 213 @Test(expectedExceptions = NullPointerException.class) 214 public void testCheckXPath09() { 215 try { 216 xpath.evaluate(EXPRESSION_NAME_A, null, STRING); 217 } catch (XPathExpressionException ex) { 218 failUnexpected(ex); 219 } 220 } 221 222 /** 223 * Test for XPath.evaluate(java.lang.String expression, java.lang.Object 224 * item, QName returnType). If returnType is null, should throw NPE. 225 */ 226 @Test(expectedExceptions = NullPointerException.class) 227 public void testCheckXPath10() { 228 try { 229 xpath.evaluate(EXPRESSION_NAME_A, document, null); 230 } catch (XPathExpressionException ex) { 231 failUnexpected(ex); 232 } 233 } 234 235 /** 236 * Test for XPath.evaluate(java.lang.String expression, java.lang.Object 237 * item, QName returnType). If a request is made to evaluate the expression 238 * in the absence of a context item, simple expressions, such as "1+1", can 239 * be evaluated. 240 */ 241 @Test 242 public void testCheckXPath11() { 243 try { 244 assertEquals(xpath.evaluate("1+1", document, STRING), "2"); 245 } catch (XPathExpressionException ex) { 246 failUnexpected(ex); 247 } 248 } 249 250 /** 251 * XPath.evaluate(java.lang.String expression, java.lang.Object item, QName 252 * returnType) throws XPathExpressionException if expression is a empty 253 * string "". 254 * . 255 * 256 * @throws XPathExpressionException 257 */ 258 @Test(expectedExceptions = XPathExpressionException.class) 259 public void testCheckXPath12() throws XPathExpressionException { 260 xpath.evaluate("", document, STRING); 261 } 262 263 /** 264 * XPath.evaluate(java.lang.String expression, java.lang.Object item, QName 265 * returnType) throws IllegalArgumentException if returnType is not one of 266 * the types defined in XPathConstants. 267 */ 268 @Test(expectedExceptions = IllegalArgumentException.class) 269 public void testCheckXPath13() { 270 try { 271 xpath.evaluate(EXPRESSION_NAME_A, document, TEST_QNAME); 272 } catch (XPathExpressionException ex) { 273 failUnexpected(ex); 274 } 275 } 276 277 /** 278 * XPath.evaluate(java.lang.String expression, java.lang.Object item, QName 279 * returnType) returns correct boolean value if returnType is Boolean. 280 */ 281 @Test 282 public void testCheckXPath14() { 283 try { 284 assertEquals(xpath.evaluate(EXPRESSION_NAME_A, document, BOOLEAN), true); 285 } catch (XPathExpressionException ex) { 286 failUnexpected(ex); 287 } 288 } 289 290 /** 291 * XPath.evaluate(java.lang.String expression, java.lang.Object item, QName 292 * returnType) returns false as expression is not successful in evaluating 293 * to any result if returnType is Boolean. 294 */ 295 @Test 296 public void testCheckXPath15() { 297 try { 298 assertEquals(xpath.evaluate(EXPRESSION_NAME_B, document, BOOLEAN), false); 299 } catch (XPathExpressionException ex) { 300 failUnexpected(ex); 301 } 302 } 303 304 /** 305 * XPath.evaluate(java.lang.String expression, java.lang.Object item, QName 306 * returnType) returns correct number value if return type is Number. 307 */ 308 @Test 309 public void testCheckXPath16() { 310 try { 311 assertEquals(xpath.evaluate(EXPRESSION_NAME_A, document, NUMBER), 6d); 312 } catch (XPathExpressionException ex) { 313 failUnexpected(ex); 314 } 315 } 316 317 318 /** 319 * XPath.evaluate(java.lang.String expression, java.lang.Object item, QName 320 * returnType) returns correct string value if return type is Node. 321 */ 322 @Test 323 public void testCheckXPath17() { 324 try { 325 assertEquals(((Attr)xpath.evaluate(EXPRESSION_NAME_A, document, NODE)).getValue(), "6"); 326 } catch (XPathExpressionException ex) { 327 failUnexpected(ex); 328 } 329 } 330 331 /** 332 * Test for XPath.evaluate(java.lang.String expression, java.lang.Object 333 * item, QName returnType). If return type is NodeList,the evaluated value 334 * equals to "6" as expected. 335 */ 336 @Test 337 public void testCheckXPath18() { 338 try { 339 NodeList nodeList = (NodeList)xpath.evaluate(EXPRESSION_NAME_A, document, NODESET); 340 assertEquals(((Attr) nodeList.item(0)).getValue(), "6"); 341 } catch (XPathExpressionException ex) { 342 failUnexpected(ex); 343 } 344 } 345 346 /** 347 * Test for XPath.evaluate(java.lang.String expression, java.lang.Object 348 * item). If expression is null, should throw NPE. 349 */ 350 @Test(expectedExceptions = NullPointerException.class) 351 public void testCheckXPath19() { 352 try { 353 xpath.evaluate(null, document); 354 } catch (XPathExpressionException ex) { 355 failUnexpected(ex); 356 } 357 } 358 359 /** 360 * Test for XPath.evaluate(java.lang.String expression, java.lang.Object 361 * item). If a request is made to evaluate the expression in the absence of 362 * a context item, simple expressions, such as "1+1", can be evaluated. 363 */ 364 @Test 365 public void testCheckXPath20() { 366 try { 367 assertEquals(xpath.evaluate("1+1", document), "2"); 368 } catch (XPathExpressionException ex) { 369 failUnexpected(ex); 370 } 371 } 372 373 /** 374 * XPath.evaluate(java.lang.String expression, java.lang.Object item) throws 375 * NPE if InputSource is null. 376 */ 377 @Test(expectedExceptions = NullPointerException.class) 378 public void testCheckXPath21() { 379 try { 380 xpath.evaluate(EXPRESSION_NAME_A, null); 381 } catch (XPathExpressionException ex) { 382 failUnexpected(ex); 383 } 384 } 385 386 /** 387 * XPath.evaluate(java.lang.String expression, InputSource source) return 388 * correct value by looking for Node. 389 */ 390 @Test 391 public void testCheckXPath22() { 392 try (InputStream is = Files.newInputStream(XML_PATH)) { 393 assertEquals(xpath.evaluate(EXPRESSION_NAME_A, new InputSource(is)), "6"); 394 } catch (XPathExpressionException | IOException ex) { 395 failUnexpected(ex); 396 } 397 } 398 399 /** 400 * XPath.evaluate(java.lang.String expression, InputSource source) throws 401 * NPE if InputSource is null. 402 */ 403 @Test(expectedExceptions = NullPointerException.class) 404 public void testCheckXPath23() { 405 try { 406 xpath.evaluate(EXPRESSION_NAME_A, null); 407 } catch (XPathExpressionException ex) { 408 failUnexpected(ex); 409 } 410 } 411 412 /** 413 * XPath.evaluate(java.lang.String expression, InputSource source) throws 414 * NPE if String expression is null. 415 */ 416 @Test(expectedExceptions = NullPointerException.class) 417 public void testCheckXPath24() { 418 try (InputStream is = Files.newInputStream(XML_PATH)) { 419 xpath.evaluate(null, new InputSource(is)); 420 } catch (XPathExpressionException | IOException ex) { 421 failUnexpected(ex); 422 } 423 } 424 425 /** 426 * Test for XPath.evaluate(java.lang.String expression, InputSource source). 427 * If expression is junk characters, expression cannot be evaluated, should 428 * throw XPathExpressionException. 429 * 430 * @throws XPathExpressionException 431 */ 432 @Test(expectedExceptions = XPathExpressionException.class) 433 public void testCheckXPath25() throws XPathExpressionException { 434 try (InputStream is = Files.newInputStream(XML_PATH)) { 435 xpath.evaluate("-*&", new InputSource(is)); 436 } catch (IOException ex) { 437 failUnexpected(ex); 438 } 439 } 440 441 /** 442 * XPath.evaluate(java.lang.String expression, InputSource source) throws 443 * XPathExpressionException if expression is blank " ". 444 * 445 * @throws XPathExpressionException 446 */ 447 @Test(expectedExceptions = XPathExpressionException.class) 448 public void testCheckXPath26() throws XPathExpressionException { 449 try (InputStream is = Files.newInputStream(XML_PATH)) { 450 xpath.evaluate(" ", new InputSource(is)); 451 } catch (IOException ex) { 452 failUnexpected(ex); 453 } 454 } 455 456 /** 457 * XPath.evaluate(java.lang.String expression, InputSource source, QName 458 * returnType) returns correct string value which return type is String. 459 */ 460 @Test 461 public void testCheckXPath27() { 462 try (InputStream is = Files.newInputStream(XML_PATH)) { 463 assertEquals(xpath.evaluate(EXPRESSION_NAME_A, new InputSource(is), STRING), "6"); 464 } catch (XPathExpressionException | IOException ex) { 465 failUnexpected(ex); 466 } 467 } 468 469 /** 470 * XPath.evaluate(java.lang.String expression, InputSource source, QName 471 * returnType) throws NPE if source is null. 472 */ 473 @Test(expectedExceptions = NullPointerException.class) 474 public void testCheckXPath28() { 475 try { 476 xpath.evaluate(EXPRESSION_NAME_A, null, STRING); 477 } catch (XPathExpressionException ex) { 478 failUnexpected(ex); 479 } 480 } 481 482 /** 483 * XPath.evaluate(java.lang.String expression, InputSource source, QName 484 * returnType) throws NPE if expression is null. 485 */ 486 @Test(expectedExceptions = NullPointerException.class) 487 public void testCheckXPath29() { 488 try (InputStream is = Files.newInputStream(XML_PATH)) { 489 xpath.evaluate(null, new InputSource(is), STRING); 490 } catch (XPathExpressionException | IOException ex) { 491 failUnexpected(ex); 492 } 493 } 494 495 /** 496 * XPath.evaluate(java.lang.String expression, InputSource source, 497 * QName returnType) throws NPE if returnType is null . 498 */ 499 @Test(expectedExceptions = NullPointerException.class) 500 public void testCheckXPath30() { 501 try (InputStream is = Files.newInputStream(XML_PATH)) { 502 xpath.evaluate(EXPRESSION_NAME_A, new InputSource(is), null); 503 } catch (XPathExpressionException | IOException ex) { 504 failUnexpected(ex); 505 } 506 } 507 508 /** 509 * XPath.evaluate(java.lang.String expression, InputSource source, QName 510 * returnType) throws XPathExpressionException if expression is junk characters. 511 * 512 * @throws XPathExpressionException 513 */ 514 @Test(expectedExceptions = XPathExpressionException.class) 515 public void testCheckXPath31() throws XPathExpressionException { 516 try (InputStream is = Files.newInputStream(XML_PATH)) { 517 xpath.evaluate("-*&", new InputSource(is), STRING); 518 } catch (IOException ex) { 519 failUnexpected(ex); 520 } 521 } 522 523 /** 524 * XPath.evaluate(java.lang.String expression, InputSource source, QName 525 * returnType) throws XPathExpressionException if expression is blank " ". 526 * 527 * @throws XPathExpressionException 528 */ 529 @Test(expectedExceptions = XPathExpressionException.class) 530 public void testCheckXPath32() throws XPathExpressionException { 531 try (InputStream is = Files.newInputStream(XML_PATH)) { 532 xpath.evaluate(" ", new InputSource(is), STRING); 533 } catch (IOException ex) { 534 failUnexpected(ex); 535 } 536 } 537 538 /** 539 * XPath.evaluate(java.lang.String expression, InputSource source, 540 * QName returnType) throws IllegalArgumentException if returnType is not 541 * one of the types defined in XPathConstants. 542 */ 543 @Test(expectedExceptions = IllegalArgumentException.class) 544 public void testCheckXPath33() { 545 try (InputStream is = Files.newInputStream(XML_PATH)) { 546 xpath.evaluate(EXPRESSION_NAME_A, new InputSource(is), TEST_QNAME); 547 } catch (XPathExpressionException | IOException ex) { 548 failUnexpected(ex); 549 } 550 } 551 552 /** 553 * XPath.evaluate(java.lang.String expression, InputSource source, 554 * QName returnType) return correct boolean value if return type is Boolean. 555 */ 556 @Test 557 public void testCheckXPath34() { 558 try (InputStream is = Files.newInputStream(XML_PATH)) { 559 assertEquals(xpath.evaluate(EXPRESSION_NAME_A, new InputSource(is), 560 BOOLEAN), true); 561 } catch (XPathExpressionException | IOException ex) { 562 failUnexpected(ex); 563 } 564 } 565 566 /** 567 * XPath.evaluate(java.lang.String expression, InputSource source, 568 * QName returnType) return correct boolean value if return type is Boolean. 569 */ 570 @Test 571 public void testCheckXPath35() { 572 try (InputStream is = Files.newInputStream(XML_PATH)) { 573 assertEquals(xpath.evaluate(EXPRESSION_NAME_B, new InputSource(is), 574 BOOLEAN), false); 575 } catch (XPathExpressionException | IOException ex) { 576 failUnexpected(ex); 577 } 578 } 579 580 /** 581 * XPath.evaluate(java.lang.String expression, InputSource source, 582 * QName returnType) return correct number value if return type is Number. 583 */ 584 @Test 585 public void testCheckXPath36() { 586 try (InputStream is = Files.newInputStream(XML_PATH)) { 587 assertEquals(xpath.evaluate(EXPRESSION_NAME_A, new InputSource(is), 588 NUMBER), 6d); 589 } catch (XPathExpressionException | IOException ex) { 590 failUnexpected(ex); 591 } 592 } 593 594 /** 595 * XPath.evaluate(java.lang.String expression, InputSource source, 596 * QName returnType) return correct string value if return type is Node. 597 */ 598 @Test 599 public void testCheckXPath37() { 600 try (InputStream is = Files.newInputStream(XML_PATH)) { 601 assertEquals(((Attr)xpath.evaluate(EXPRESSION_NAME_A, 602 new InputSource(is), NODE)).getValue(), "6"); 603 } catch (XPathExpressionException | IOException ex) { 604 failUnexpected(ex); 605 } 606 } 607 608 /** 609 * Test for XPath.evaluate(java.lang.String expression, InputSource source, 610 * QName returnType) which return type is NodeList. 611 */ 612 @Test 613 public void testCheckXPath38() { 614 try (InputStream is = Files.newInputStream(XML_PATH)) { 615 NodeList nodeList = (NodeList)xpath.evaluate(EXPRESSION_NAME_A, 616 new InputSource(is), NODESET); 617 assertEquals(((Attr) nodeList.item(0)).getValue(), "6"); 618 } catch (XPathExpressionException | IOException ex) { 619 failUnexpected(ex); 620 } 621 } 622 623 /** 624 * Test for XPath.evaluate(java.lang.String expression, InputSource iSource, 625 * QName returnType). If return type is Boolean, should return false as 626 * expression is not successful in evaluating to any result. 627 */ 628 @Test 629 public void testCheckXPath52() { 630 try (InputStream is = Files.newInputStream(XML_PATH)) { 631 assertEquals(xpath.evaluate(EXPRESSION_NAME_B, new InputSource(is), 632 BOOLEAN), false); 633 } catch (XPathExpressionException | IOException ex) { 634 failUnexpected(ex); 635 } 636 } 637 638 /** 639 * XPath.evaluate(java.lang.String expression, InputSource iSource, QName 640 * returnType) returns correct number value which return type is Number. 641 */ 642 @Test 643 public void testCheckXPath53() { 644 try (InputStream is = Files.newInputStream(XML_PATH)) { 645 assertEquals(xpath.evaluate(EXPRESSION_NAME_A, new InputSource(is), 646 NUMBER), 6d); 647 } catch (XPathExpressionException | IOException ex) { 648 failUnexpected(ex); 649 } 650 } 651 652 /** 653 * XPath.evaluate(java.lang.String expression, InputSource iSource, QName 654 * returnType) returns a node value if returnType is Node. 655 */ 656 @Test 657 public void testCheckXPath54() { 658 try (InputStream is = Files.newInputStream(XML_PATH)) { 659 assertEquals(((Attr)xpath.evaluate(EXPRESSION_NAME_A, 660 new InputSource(is), NODE)).getValue(), "6"); 661 } catch (XPathExpressionException | IOException ex) { 662 failUnexpected(ex); 663 } 664 } 665 666 /** 667 * XPath.evaluate(java.lang.String expression, InputSource iSource, QName 668 * returnType) returns a node list if returnType is NodeList. 669 */ 670 @Test 671 public void testCheckXPath55() { 672 try (InputStream is = Files.newInputStream(XML_PATH)) { 673 NodeList nodeList = (NodeList)xpath.evaluate(EXPRESSION_NAME_A, 674 new InputSource(is), NODESET); 675 assertEquals(((Attr) nodeList.item(0)).getValue(), "6"); 676 } catch (XPathExpressionException | IOException ex) { 677 failUnexpected(ex); 678 } 679 } 680 681 /** 682 * Test for XPath.getNamespaceContext() returns the current namespace 683 * context, null is returned if no namespace context is in effect. 684 */ 685 @Test 686 public void testCheckXPath56() { 687 // CR 6376058 says that an impl will be provided, but by 688 // default we still return null here 689 assertNull(xpath.getNamespaceContext()); 690 } 691 692 /** 693 * Test for XPath.setNamespaceContext(NamespaceContext nsContext) Establish 694 * a namespace context. Set a valid nsContext and retrieve it using 695 * getNamespaceContext(), should return the same. 696 */ 697 @Test 698 public void testCheckXPath57() { 699 MyNamespaceContext myNamespaceContext = new MyNamespaceContext(); 700 xpath.setNamespaceContext(myNamespaceContext); 701 assertEquals(xpath.getNamespaceContext(), myNamespaceContext); 702 } 703 704 /** 705 * Test for XPath.setNamespaceContext(NamespaceContext nsContext) Establish 706 * a namespace context. NullPointerException is thrown if nsContext is null. 707 */ 708 @Test(expectedExceptions = NullPointerException.class) 709 public void testCheckXPath58() { 710 xpath.setNamespaceContext(null); 711 } 712 713 /** 714 * Test for XPath.getXPathFunctionResolver() Return the current function 715 * resolver. Null is returned if no function resolver is in effect. 716 */ 717 @Test 718 public void testCheckXPath59() { 719 assertNull(xpath.getXPathFunctionResolver()); 720 } 721 722 /** 723 * Test for XPath.setXPathFunctionResolver(XPathFunctionResolver resolver). 724 * Set a valid resolver and retrieve it using getXPathFunctionResolver(), 725 * should return the same. 726 */ 727 @Test 728 public void testCheckXPath60() { 729 xpath.setXPathFunctionResolver((functionName, arity) -> null); 730 assertNotNull(xpath.getXPathFunctionResolver()); 731 } 732 733 /** 734 * Test for XPath.setXPathFunctionResolver(XPathFunctionResolver resolver). 735 * set resolver as null, should throw NPE. 736 */ 737 @Test(expectedExceptions = NullPointerException.class) 738 public void testCheckXPath61() { 739 xpath.setXPathFunctionResolver(null); 740 } 741 742 /** 743 * Test for XPath.getXPathVariableResolver() Return the current variable 744 * resolver. null is returned if no variable resolver is in effect. 745 */ 746 @Test 747 public void testCheckXPath62() { 748 assertNull(xpath.getXPathVariableResolver()); 749 } 750 751 /** 752 * Test for XPath.setXPathVariableResolver(XPathVariableResolver resolver). 753 * Set a valid resolver and retrieve it using getXPathVariableResolver(), 754 * should return the same. 755 */ 756 @Test 757 public void testCheckXPath63() { 758 xpath.setXPathVariableResolver(qname -> null); 759 assertNotNull(xpath.getXPathVariableResolver()); 760 } 761 762 /** 763 * Test for XPath.setXPathVariableResolver(XPathVariableResolver resolver). 764 * Set resolver as null, should throw NPE. 765 */ 766 @Test(expectedExceptions = NullPointerException.class) 767 public void testCheckXPath64() { 768 xpath.setXPathVariableResolver(null); 769 } 770 771 /** 772 * Customized NamespaceContext used for test 773 */ 774 private class MyNamespaceContext implements NamespaceContext { 775 /** 776 * et Namespace URI bound to a prefix in the current scope. 777 * @param prefix prefix to look up 778 * @return a Namespace URI identical to prefix 779 */ 780 @Override 781 public String getNamespaceURI(String prefix) { 782 return prefix; 783 } 784 785 /** 786 * Get prefix bound to Namespace URI in the current scope. 787 * @param namespaceURI URI of Namespace to lookup 788 * @return prefix identical to URI of Namespace 789 */ 790 @Override 791 public String getPrefix(String namespaceURI) { 792 return namespaceURI; 793 } 794 795 /** 796 * Get all prefixes bound to a Namespace URI in the current scope. 797 * @param namespaceURI URI of Namespace to lookup 798 * @return null 799 */ 800 @Override 801 public Iterator getPrefixes(String namespaceURI) { 802 return null; 803 } 804 } 805 }