/
RegexpHeaderCheckTest.java
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/
RegexpHeaderCheckTest.java
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////////////////////////////////////////////////////////////////////////////////
// checkstyle: Checks Java source code for adherence to a set of rules.
// Copyright (C) 2001-2019 the original author or authors.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
////////////////////////////////////////////////////////////////////////////////
package com.puppycrawl.tools.checkstyle.checks.header;
import static com.puppycrawl.tools.checkstyle.checks.header.RegexpHeaderCheck.MSG_HEADER_MISMATCH;
import static com.puppycrawl.tools.checkstyle.checks.header.RegexpHeaderCheck.MSG_HEADER_MISSING;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.util.List;
import java.util.Locale;
import java.util.regex.Pattern;
import org.junit.Test;
import org.powermock.reflect.Whitebox;
import com.puppycrawl.tools.checkstyle.AbstractModuleTestSupport;
import com.puppycrawl.tools.checkstyle.DefaultConfiguration;
import com.puppycrawl.tools.checkstyle.api.CheckstyleException;
import com.puppycrawl.tools.checkstyle.utils.CommonUtil;
/**
* Unit test for RegexpHeaderCheck.
*/
public class RegexpHeaderCheckTest extends AbstractModuleTestSupport {
@Override
protected String getPackageLocation() {
return "com/puppycrawl/tools/checkstyle/checks/header/regexpheader";
}
/**
* Test of setHeader method, of class RegexpHeaderCheck.
*/
@Test
public void testSetHeaderNull() {
// check null passes
final RegexpHeaderCheck instance = new RegexpHeaderCheck();
// recreate for each test because multiple invocations fail
final String header = null;
instance.setHeader(header);
final List<Pattern> headerRegexps = Whitebox.getInternalState(instance, "headerRegexps");
assertTrue("When header is null regexps should not be set", headerRegexps.isEmpty());
}
/**
* Test of setHeader method, of class RegexpHeaderCheck.
*/
@Test
public void testSetHeaderEmpty() {
// check null passes
final RegexpHeaderCheck instance = new RegexpHeaderCheck();
// check empty string passes
final String header = "";
instance.setHeader(header);
final List<Pattern> headerRegexps = Whitebox.getInternalState(instance, "headerRegexps");
assertTrue("When header is empty regexps should not be set", headerRegexps.isEmpty());
}
/**
* Test of setHeader method, of class RegexpHeaderCheck.
*/
@Test
public void testSetHeaderSimple() {
final RegexpHeaderCheck instance = new RegexpHeaderCheck();
// check valid header passes
final String header = "abc.*";
instance.setHeader(header);
final List<Pattern> headerRegexps = Whitebox.getInternalState(instance, "headerRegexps");
assertEquals("Expected one pattern", 1, headerRegexps.size());
assertEquals("Invalid header regexp", header, headerRegexps.get(0).pattern());
}
/**
* Test of setHeader method, of class RegexpHeaderCheck.
*/
@Test
public void testSetHeader() {
// check invalid header passes
final RegexpHeaderCheck instance = new RegexpHeaderCheck();
try {
final String header = "^/**\\n * Licensed to the Apache Software Foundation (ASF)";
instance.setHeader(header);
fail(String.format(Locale.ROOT, "%s should have been thrown",
IllegalArgumentException.class));
}
catch (IllegalArgumentException ex) {
assertEquals("Invalid exception message", "Unable to parse format: ^/**\\n *"
+ " Licensed to the Apache Software Foundation (ASF)", ex.getMessage());
}
}
@Test
public void testDefaultConfiguration() throws Exception {
final DefaultConfiguration checkConfig = createModuleConfig(RegexpHeaderCheck.class);
createChecker(checkConfig);
final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
verify(checkConfig, getPath("InputRegexpHeaderDefaultConfig.java"), expected);
}
@Test
public void testEmptyFilename() throws Exception {
final DefaultConfiguration checkConfig = createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", "");
try {
createChecker(checkConfig);
fail("Checker creation should not succeed with invalid headerFile");
}
catch (CheckstyleException ex) {
assertEquals("Invalid exception message", "cannot initialize module"
+ " com.puppycrawl.tools.checkstyle.checks.header.RegexpHeaderCheck"
+ " - Cannot set property 'headerFile' to ''",
ex.getMessage());
}
}
@Test
public void testRegexpHeader() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader.header"));
final String[] expected = {
"3: " + getCheckMessage(MSG_HEADER_MISMATCH, "// Created: 2002"),
};
verify(checkConfig, getPath("InputRegexpHeaderIgnore.java"), expected);
}
@Test
public void testRegexpHeaderUrl() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getUriString("InputRegexpHeader.header"));
final String[] expected = {
"3: " + getCheckMessage(MSG_HEADER_MISMATCH, "// Created: 2002"),
};
verify(checkConfig, getPath("InputRegexpHeaderIgnore.java"), expected);
}
@Test
public void testInlineRegexpHeader() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("header", "^/*$\\n// .*\\n// Created: 2002\\n^//.*\\n^//.*");
final String[] expected = {
"3: " + getCheckMessage(MSG_HEADER_MISMATCH, "// Created: 2002"),
};
verify(checkConfig, getPath("InputRegexpHeaderIgnore.java"), expected);
}
@Test
public void testFailureForMultilineRegexp() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("header", "^(.*\\n.*)");
try {
createChecker(checkConfig);
fail("Checker creation should not succeed when regexp spans multiple lines");
}
catch (CheckstyleException ex) {
assertEquals("Invalid exception message", "cannot initialize module"
+ " com.puppycrawl.tools.checkstyle.checks.header.RegexpHeaderCheck"
+ " - Cannot set property 'header' to '^(.*\\n.*)'",
ex.getMessage());
}
}
@Test
public void testInlineRegexpHeaderConsecutiveNewlines() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("header", "^/*$\\n// .*\\n\\n// Created: 2017\\n^//.*");
final String[] expected = {
"3: " + getCheckMessage(MSG_HEADER_MISMATCH, "^$"),
};
verify(checkConfig, getPath("InputRegexpHeaderConsecutiveNewLines.java"), expected);
}
@Test
public void testInlineRegexpHeaderConsecutiveNewlinesThroughConfigFile() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getUriString("InputRegexpHeaderNewLines.header"));
final String[] expected = {
"3: " + getCheckMessage(MSG_HEADER_MISMATCH, "^$"),
};
verify(checkConfig, getPath("InputRegexpHeaderConsecutiveNewLines.java"), expected);
}
@Test
public void testRegexpHeaderIgnore() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader1.header"));
final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
verify(checkConfig, getPath("InputRegexpHeaderIgnore.java"), expected);
}
@Test
public void testRegexpHeaderMulti1() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader2.header"));
checkConfig.addAttribute("multiLines", "3, 6");
final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
verify(checkConfig, getPath("InputRegexpHeaderDefaultConfig.java"), expected);
}
@Test
public void testRegexpHeaderMulti2() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader2.header"));
checkConfig.addAttribute("multiLines", "3, 6");
final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
verify(checkConfig, getPath("InputRegexpHeaderMulti2.java"), expected);
}
@Test
public void testRegexpHeaderMulti3() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader2.header"));
checkConfig.addAttribute("multiLines", "3, 7");
final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
verify(checkConfig, getPath("InputRegexpHeaderDefaultConfig.java"), expected);
}
@Test
public void testRegexpHeaderMulti4() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader2.header"));
checkConfig.addAttribute("multiLines", "3, 5, 6, 7");
final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
verify(checkConfig, getPath("InputRegexpHeaderMulti4.java"), expected);
}
@Test
public void testRegexpHeaderMulti5() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader2.header"));
checkConfig.addAttribute("multiLines", "3");
final String[] expected = {
"1: " + getCheckMessage(MSG_HEADER_MISSING),
};
verify(checkConfig, getPath("InputRegexpHeaderMulti5.java"), expected);
}
@Test
public void testRegexpHeaderMulti6() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader2_4.header"));
checkConfig.addAttribute("multiLines", "8974382");
final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
verify(checkConfig, getPath("InputRegexpHeaderMulti6.java"), expected);
}
@Test
public void testRegexpHeaderSmallHeader() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader2.header"));
checkConfig.addAttribute("multiLines", "3, 6");
final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
verify(checkConfig, getPath("InputRegexpHeaderSmallHeader.java"), expected);
}
@Test
public void testEmptyMultiline()
throws Exception {
final DefaultConfiguration checkConfig = createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader2.header"));
checkConfig.addAttribute("multiLines", "");
final String[] expected = {
"1: " + getCheckMessage(MSG_HEADER_MISSING),
};
verify(checkConfig, getPath("InputRegexpHeaderSmallHeader.java"), expected);
}
@Test
public void testRegexpHeaderMulti52()
throws Exception {
final DefaultConfiguration checkConfig = createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader3.header"));
final String[] expected = {
"1: " + getCheckMessage(MSG_HEADER_MISSING),
};
verify(checkConfig, getPath("InputRegexpHeaderMulti52.java"), expected);
}
@Test
public void testIgnoreLinesSorted() throws Exception {
final DefaultConfiguration checkConfig =
createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader5.header"));
checkConfig.addAttribute("multiLines", "7,5,3");
final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
verify(checkConfig, getPath("InputRegexpHeaderIgnoreLinesSorted.java"), expected);
}
@Test
public void testHeaderWithInvalidRegexp() throws Exception {
final DefaultConfiguration checkConfig = createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader.invalid.header"));
final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
try {
verify(checkConfig, getPath("InputRegexpHeaderMulti52.java"), expected);
fail("IllegalArgumentException is expected");
}
catch (IllegalArgumentException ex) {
assertEquals("Invalid exception message",
"line 1 in header specification is not a regular expression", ex.getMessage());
}
}
@Test
public void testNoWarningIfSingleLinedLeft() throws Exception {
final DefaultConfiguration checkConfig = createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader4.header"));
final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
verify(checkConfig, getPath("InputRegexpHeaderMulti5.java"), expected);
}
@Test
public void testNoHeaderMissingErrorInCaseHeaderSizeEqualToFileSize() throws Exception {
final DefaultConfiguration checkConfig = createModuleConfig(RegexpHeaderCheck.class);
checkConfig.addAttribute("headerFile", getPath("InputRegexpHeader3.header"));
checkConfig.addAttribute("multiLines", "1");
final String[] expected = {
"5: " + getCheckMessage(MSG_HEADER_MISMATCH, "^$"),
};
verify(checkConfig, getPath("InputRegexpHeaderMulti52.java"), expected);
}
}