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XpathDirectiveTest.java
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XpathDirectiveTest.java
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/*
* Copyright (c) 2013-2022, xembly.org
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met: 1) Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer. 2) Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution. 3) Neither the name of the xembly.org nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.xembly;
import com.jcabi.matchers.XhtmlMatchers;
import java.util.Collections;
import javax.xml.parsers.DocumentBuilderFactory;
import org.apache.commons.lang3.StringUtils;
import org.hamcrest.MatcherAssert;
import org.hamcrest.Matchers;
import org.junit.jupiter.api.Test;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* Test case for {@link XpathDirective}.
*
* @since 0.1
*/
public final class XpathDirectiveTest {
/**
* XpathDirective can find nodes.
* @throws Exception If some problem inside
*/
@Test
public void findsNodesWithXpathExpression() throws Exception {
final Iterable<Directive> dirs = new Directives(
StringUtils.join(
new String[] {
"ADD 'root'; ADD 'foo'; ATTR 'bar', '1'; UP; ADD 'bar';",
"XPATH '//*[@bar=1]'; ADD 'test';",
}
)
);
final Document dom = DocumentBuilderFactory.newInstance()
.newDocumentBuilder().newDocument();
new Xembler(dirs).apply(dom);
MatcherAssert.assertThat(
XhtmlMatchers.xhtml(dom),
XhtmlMatchers.hasXPaths(
"/root/foo[@bar=1]/test",
"/root/bar"
)
);
}
/**
* XpathDirective can ignore empty searches.
* @throws Exception If some problem inside
*/
@Test
public void ignoresEmptySearches() throws Exception {
final Iterable<Directive> dirs = new Directives(
"XPATH '/nothing'; XPATH '/top'; STRICT '1'; ADD 'hey';"
);
final Document dom = DocumentBuilderFactory.newInstance()
.newDocumentBuilder().newDocument();
dom.appendChild(dom.createElement("top"));
new Xembler(dirs).apply(dom);
MatcherAssert.assertThat(
XhtmlMatchers.xhtml(dom),
XhtmlMatchers.hasXPath("/top/hey")
);
}
/**
* XpathDirective can find nodes by XPath.
* @throws Exception If some problem inside
* @since 0.7
*/
@Test
public void findsNodesByXpathDirectly() throws Exception {
final Document dom = DocumentBuilderFactory.newInstance()
.newDocumentBuilder().newDocument();
final Element root = dom.createElement("xxx");
final Element first = dom.createElement("a");
root.appendChild(first);
final Element second = dom.createElement("b");
root.appendChild(second);
dom.appendChild(root);
MatcherAssert.assertThat(
new XpathDirective("/*").exec(
dom,
new DomCursor(Collections.singletonList(first)),
new DomStack()
),
Matchers.hasItem(root)
);
}
/**
* XpathDirective can find nodes in empty DOM.
* @throws Exception If some problem inside
*/
@Test
public void findsNodesInEmptyDom() throws Exception {
final Document dom = DocumentBuilderFactory.newInstance()
.newDocumentBuilder().newDocument();
MatcherAssert.assertThat(
new XpathDirective("/some-root").exec(
dom,
new DomCursor(Collections.emptyList()),
new DomStack()
),
Matchers.emptyIterable()
);
}
/**
* XpathDirective can find root in cloned document.
* @throws Exception If some problem inside
*/
@Test
public void findsRootInClonedNode() throws Exception {
final Iterable<Directive> dirs = new Directives(
"XPATH '/*'; STRICT '1'; ADD 'boom-5';"
);
final Document dom = DocumentBuilderFactory.newInstance()
.newDocumentBuilder().newDocument();
dom.appendChild(dom.createElement("high"));
final Node clone = dom.cloneNode(true);
new Xembler(dirs).apply(clone);
MatcherAssert.assertThat(
XhtmlMatchers.xhtml(clone),
XhtmlMatchers.hasXPath("/high/boom-5")
);
}
}