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/*******************************************************************************
* Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.report.internal.html.page;
import static org.junit.Assert.assertEquals;
import java.io.ByteArrayOutputStream;
import java.io.StringReader;
import java.util.Locale;
import org.jacoco.core.analysis.ICoverageNode.ElementType;
import org.jacoco.core.internal.analysis.CounterImpl;
import org.jacoco.core.internal.analysis.SourceNodeImpl;
import org.jacoco.report.internal.html.HTMLElement;
import org.jacoco.report.internal.html.HTMLSupport;
import org.jacoco.report.internal.html.resources.Styles;
import org.junit.Before;
import org.junit.Test;
import org.w3c.dom.Document;
/**
* Unit tests for {@link SourceHighlighter}.
*/
public class SourceHighlighterTest {
private HTMLSupport htmlSupport;
private ByteArrayOutputStream buffer;
private HTMLElement html;
private HTMLElement parent;
private SourceHighlighter sourceHighlighter;
private SourceNodeImpl source;
@Before
public void setup() throws Exception {
htmlSupport = new HTMLSupport();
source = new SourceNodeImpl(ElementType.SOURCEFILE, "Foo.java");
buffer = new ByteArrayOutputStream();
html = new HTMLElement(buffer, "UTF-8");
html.head().title();
parent = html.body();
sourceHighlighter = new SourceHighlighter(Locale.US);
}
@Test
public void testDefaultTabWidth() throws Exception {
final String src = "\tA";
sourceHighlighter.render(parent, source, new StringReader(src));
final Document doc = parseDoc();
// Assert that we no longer replace tabs with spaces
assertEquals("\tA\n", htmlSupport.findStr(doc, "//pre/text()"));
}
@Test
public void testDefaultLanguage() throws Exception {
sourceHighlighter.render(parent, source, new StringReader(""));
final Document doc = parseDoc();
assertEquals("source lang-java linenums",
htmlSupport.findStr(doc, "//pre/@class"));
}
@Test
public void testSetLanguage() throws Exception {
sourceHighlighter.setLanguage("scala");
sourceHighlighter.render(parent, source, new StringReader(""));
final Document doc = parseDoc();
assertEquals("source lang-scala linenums",
htmlSupport.findStr(doc, "//pre/@class"));
}
@Test
public void testHighlighting() throws Exception {
final String src = "A\nB\nC\nD";
source.increment(CounterImpl.COUNTER_1_0, CounterImpl.COUNTER_0_0, 1);
source.increment(CounterImpl.COUNTER_1_0, CounterImpl.COUNTER_0_0, 2);
source.increment(CounterImpl.COUNTER_0_1, CounterImpl.COUNTER_0_0, 2);
source.increment(CounterImpl.COUNTER_0_1, CounterImpl.COUNTER_0_0, 3);
sourceHighlighter.render(parent, source, new StringReader(src));
final Document doc = parseDoc();
assertEquals(Styles.NOT_COVERED,
htmlSupport.findStr(doc, "//pre/span[text() = 'A']/@class"));
assertEquals(Styles.PARTLY_COVERED,
htmlSupport.findStr(doc, "//pre/span[text() = 'B']/@class"));
assertEquals(Styles.FULLY_COVERED,
htmlSupport.findStr(doc, "//pre/span[text() = 'C']/@class"));
assertEquals("",
htmlSupport.findStr(doc, "//pre/span[text() = 'D']/@class"));
}
@Test
public void testHighlightNone() throws Exception {
sourceHighlighter.highlight(parent, source.getLine(1), 1);
final Document doc = parseDoc();
assertEquals("", htmlSupport.findStr(doc, "//pre"));
}
@Test
public void testHighlightBranchesFC() throws Exception {
source.increment(CounterImpl.COUNTER_0_1, CounterImpl.getInstance(0, 5),
1);
sourceHighlighter.highlight(parent.pre(null), source.getLine(1), 1);
final Document doc = parseDoc();
assertEquals("fc bfc", htmlSupport.findStr(doc, "//pre/span/@class"));
assertEquals("All 5 branches covered.",
htmlSupport.findStr(doc, "//pre/span/@title"));
}
@Test
public void testHighlightBranchesPC() throws Exception {
source.increment(CounterImpl.COUNTER_0_1, CounterImpl.getInstance(2, 3),
1);
sourceHighlighter.highlight(parent.pre(null), source.getLine(1), 1);
final Document doc = parseDoc();
assertEquals("pc bpc", htmlSupport.findStr(doc, "//pre/span/@class"));
assertEquals("2 of 5 branches missed.",
htmlSupport.findStr(doc, "//pre/span/@title"));
}
@Test
public void testHighlightBranchesNC() throws Exception {
source.increment(CounterImpl.COUNTER_0_1, CounterImpl.getInstance(5, 0),
1);
sourceHighlighter.highlight(parent.pre(null), source.getLine(1), 1);
final Document doc = parseDoc();
assertEquals("pc bnc", htmlSupport.findStr(doc, "//pre/span/@class"));
assertEquals("All 5 branches missed.",
htmlSupport.findStr(doc, "//pre/span/@title"));
}
private Document parseDoc() throws Exception {
html.close();
return htmlSupport.parse(buffer);
}
}
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