net.sourceforge.pmd.lang.java.ast.CommentTest.java Source code

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Here is the source code for net.sourceforge.pmd.lang.java.ast.CommentTest.java

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/**
 * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
 */

package net.sourceforge.pmd.lang.java.ast;

import org.apache.commons.lang3.StringUtils;
import org.junit.Assert;
import org.junit.Test;

import net.sourceforge.pmd.PMD;

public class CommentTest {
    @Test
    public void testMultiLinesInSingleLine() {
        String comment = "/* single line. */";
        String filtered = filter(comment);
        Assert.assertEquals(1, lineCount(filtered));
        Assert.assertEquals("single line.", filtered);
    }

    @Test
    public void testMultiLinesInSingleLineSimple() {
        String comment = "// single line.";
        String filtered = filter(comment);
        Assert.assertEquals(1, lineCount(filtered));
        Assert.assertEquals("single line.", filtered);
    }

    @Test
    public void testMultiLinesInSingleLineFormal() {
        String comment = "/** single line. */";
        String filtered = filter(comment);
        Assert.assertEquals(1, lineCount(filtered));
        Assert.assertEquals("single line.", filtered);
    }

    @Test
    public void testMultiLinesInMultiLine() {
        String comment = "/*\n" + " * line 1\n" + " * line 2\n" + " */\n";
        String filtered = filter(comment);
        Assert.assertEquals(2, lineCount(filtered));
        Assert.assertEquals("line 1" + PMD.EOL + "line 2", filtered);
    }

    @Test
    public void testMultiLinesInMultiLineCrLf() {
        String comment = "/*\r\n" + " * line 1\r\n" + " * line 2\r\n" + " */\r\n";
        String filtered = filter(comment);
        Assert.assertEquals(2, lineCount(filtered));
        Assert.assertEquals("line 1" + PMD.EOL + "line 2", filtered);
    }

    @Test
    public void testMultiLinesInMultiLineFormal() {
        String comment = "/**\n" + " * line 1\n" + " * line 2\n" + " */\n";
        String filtered = filter(comment);
        Assert.assertEquals(2, lineCount(filtered));
        Assert.assertEquals("line 1" + PMD.EOL + "line 2", filtered);
    }

    @Test
    public void testMultiLinesInMultiLineFormalCrLf() {
        String comment = "/**\r\n" + " * line 1\r\n" + " * line 2\r\n" + " */\r\n";
        String filtered = filter(comment);
        Assert.assertEquals(2, lineCount(filtered));
        Assert.assertEquals("line 1" + PMD.EOL + "line 2", filtered);
    }

    @Test
    public void testMultiLinesInMultiLineNoAsteriskEmpty() {
        String comment = "/**\n" + " * line 1\n" + "line 2\n" + "\n" + " */\n";
        String filtered = filter(comment);
        Assert.assertEquals(2, lineCount(filtered));
        Assert.assertEquals("line 1" + PMD.EOL + "line 2", filtered);
    }

    private String filter(String comment) {
        Token t = new Token();
        t.image = comment;
        Comment node = new Comment(t) {
        };
        return node.getFilteredComment();
    }

    private int lineCount(String filtered) {
        return StringUtils.countMatches(filtered, PMD.EOL) + 1;
    }
}