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8289949: Improve test coverage for XPath: operators
Backport-of: f6b636015573f9b88133efba2f87bed80f463a96
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test/jaxp/javax/xml/jaxp/unittest/xpath/XPathOperatorExpTest.java
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/* | ||
* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved. | ||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
* | ||
* This code is free software; you can redistribute it and/or modify it | ||
* under the terms of the GNU General Public License version 2 only, as | ||
* published by the Free Software Foundation. | ||
* | ||
* This code is distributed in the hope that it will be useful, but WITHOUT | ||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
* version 2 for more details (a copy is included in the LICENSE file that | ||
* accompanied this code). | ||
* | ||
* You should have received a copy of the GNU General Public License version | ||
* 2 along with this work; if not, write to the Free Software Foundation, | ||
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
* | ||
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
* or visit www.oracle.com if you need additional information or have any | ||
* questions. | ||
*/ | ||
package xpath; | ||
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import org.testng.Assert; | ||
import org.testng.annotations.DataProvider; | ||
import org.testng.annotations.Test; | ||
import org.w3c.dom.Document; | ||
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import javax.xml.xpath.XPathExpressionException; | ||
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/* | ||
* @test | ||
* @bug 8289949 | ||
* @summary Tests the XPath operator expressions | ||
* @library /javax/xml/jaxp/unittest | ||
* | ||
* @run testng xpath.XPathOperatorExpTest | ||
*/ | ||
public class XPathOperatorExpTest extends XPathTestBase { | ||
private static final Document doc = getDocument(); | ||
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/* | ||
* DataProvider for testing the XPath operator expressions. | ||
* Data columns: | ||
* see parameters of the test "testOperatorExp" | ||
*/ | ||
@DataProvider(name = "operatorExpTestCases") | ||
public Object[][] getOperatorExp() { | ||
return new Object[][]{ | ||
// boolean and relational operators: or, and, =, !=, <, <=, >, >= | ||
{"string(//Customer[Age > 0]/Name)", "name2"}, | ||
{"string(//Customer[Age < 0]/Name)", "name3"}, | ||
{"string(//Customer[Age = 0]/Name)", "name1"}, | ||
{"count(//Customer[Age >= 0 and Age <= 0])", 1}, | ||
{"count(//Customer[Age >= 0][Age <= 0])", 1}, | ||
{"count(//Customer[Age > 0 or Age < 0])", 2}, | ||
{"count(//Customer[Age != 0])", 2}, | ||
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// arithmetic operators: +, -, *, div, mod | ||
{"string(//Customer[last() div 2]/Name)", "name1"}, | ||
{"string(//Customer[position() * 2 > last()]/Name)", "name2"}, | ||
{"string(//Customer[position() + 1 < last()]/Name)", "name1"}, | ||
{"string(//Customer[last() - 1]/Name)", "name2"}, | ||
{"string(//Customer[last() mod 2]/Name)", "name1"}, | ||
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// union operator: | | ||
{"count(//Customer[Name='name1'] | //Customer[Name='name2'])", | ||
2}, | ||
{"count(//Customer[Name='name1'] | //Customer[Name='name2'] |" + | ||
" //Customer[Name='name3'])", 3}, | ||
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// operator precedence | ||
{"1 + 2 * 3 + 3", 10.0}, | ||
{"1 + 1 div 2 + 2", 3.5}, | ||
{"1 + 1 mod 2 + 2", 4.0}, | ||
{"1 * 1 mod 2 div 2", 0}, | ||
{"1 * (1 mod 2) div 2", 0.5}, | ||
{"(1 + 2) * (3 + 3)", 18.0}, | ||
{"(1 + 2) div (3 + 3)", 0.5}, | ||
{"1 - 2 < 3 + 3", true}, | ||
{"1 * 2 >= 3 div 3", true}, | ||
{"3 > 2 > 1", false}, | ||
{"3 > (2 > 1)", true}, | ||
{"3 > 2 = 1", true}, | ||
{"1 = 3 > 2", true}, | ||
{"1 = 2 or 1 <= 2 and 2 != 2", false}, | ||
}; | ||
} | ||
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/* | ||
* DataProvider for testing XPathExpressionException being thrown on | ||
* invalid operator usage. | ||
* Data columns: | ||
* see parameters of the test "testExceptionOnEval" | ||
*/ | ||
@DataProvider(name = "exceptionExpTestCases") | ||
public Object[][] getExceptionExp() { | ||
return new Object[][]{ | ||
// invalid operators | ||
{"string(//Customer[last() / 2]/Name)"}, | ||
{"string(//Customer[last() % 2]/Name)"}, | ||
{"count(//Customer[Name='name1'] & //Customer[Name='name2'])"}, | ||
{"count(//Customer[Name='name1'] && //Customer[Name='name2'])"}, | ||
{"count(//Customer[Name='name1'] || //Customer[Name='name2'])"}, | ||
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// union operator only works for node-sets | ||
{"//Customer[Name='name1'] | string(//Customer[Name='name2']))"}, | ||
}; | ||
} | ||
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/** | ||
* Verifies that the result of evaluating XPath operators matches the | ||
* expected result. | ||
* | ||
* @param exp XPath expression | ||
* @param expected expected result | ||
* @throws Exception if test fails | ||
*/ | ||
@Test(dataProvider = "operatorExpTestCases") | ||
void testOperatorExp(String exp, Object expected) throws Exception { | ||
if (expected instanceof Double d) { | ||
testExp(doc, exp, d, Double.class); | ||
} else if (expected instanceof String s) { | ||
testExp(doc, exp, s, String.class); | ||
} else if (expected instanceof Boolean b) { | ||
testExp(doc, exp, b, Boolean.class); | ||
} | ||
} | ||
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/** | ||
* Verifies that XPathExpressionException is thrown on xpath evaluation. | ||
* | ||
* @param exp XPath expression | ||
*/ | ||
@Test(dataProvider = "exceptionExpTestCases") | ||
void testExceptionOnEval(String exp) { | ||
Assert.assertThrows(XPathExpressionException.class, () -> testEval(doc, | ||
exp)); | ||
} | ||
} |
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