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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * under the terms of the GNU General Public License version 2 only, as
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * accompanied this code).
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package openjdk.codetools.jcov.report.view;

import openjdk.codetools.jcov.report.Coverage;
import openjdk.codetools.jcov.report.CoveredLineRange;
import openjdk.codetools.jcov.report.FileCoverage;
import openjdk.codetools.jcov.report.LineRange;
import openjdk.codetools.jcov.report.source.SourceHierarchy;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import java.util.Set;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;

public class CoverageCacheTest {
    static final Set<String> files = Set.of("dir1/file1", "dir1/file2", "dir2/file1", "dir2/file2");
    static FileCoverage coverage;
    static Path reportFile;
    @BeforeClass
    static void init() throws IOException {
        coverage = file -> List.of(
                new CoveredLineRange(1, 1, Coverage.COVERED),
                new CoveredLineRange(3, 4, Coverage.COVERED),
                new CoveredLineRange(6, 8, Coverage.COVERED)
        );
        reportFile = Files.createTempFile("report", "txt");
    }
    @Test
    void everyEven() throws IOException {
        var cache = new CoverageHierarchy(files,
                new SourceHierarchy() {
                    @Override
                    public List<String> readFile(String file) throws IOException {
                        return Files.readAllLines(Path.of(file));
                    }

                    @Override
                    public String toClass(String file) {
                        return file;
                    }
                },
                coverage,
                file -> file.endsWith("file1") ?
                        List.of(
                                new LineRange(0, 0),
                                new LineRange(2, 2),
                                new LineRange(4, 4),
                                new LineRange(6, 6),
                                new LineRange(8, 8)
                        ) :
                        List.of());
        assertTrue(cache.get("").equals(new Coverage(4, 4)));
        assertTrue(cache.get("dir1").equals(new Coverage(2, 2)));
        assertTrue(cache.get("dir1/file1").equals(new Coverage(2, 2)));
    }
    @Test
    void getLineCoverage() throws IOException {
        var cache = new CoverageHierarchy(files,
                new SourceHierarchy() {
                    @Override
                    public List<String> readFile(String file) throws IOException {
                        return Files.readAllLines(Path.of(file));
                    }

                    @Override
                    public String toClass(String file) {
                        return file;
                    }
                },
                coverage,
                file -> file.endsWith("file1") ?
                List.of(
                        new LineRange(0, 0),
                        new LineRange(2, 2),
                        new LineRange(4, 4),
                        new LineRange(6, 6),
                        new LineRange(8, 8)
                ) :
                List.of());

        var lc = cache.getLineRanges("dir1/file1");
        assertEquals(lc.size(), 3);
        assertEquals(lc.get(4).coverage(), Coverage.COVERED);
        assertEquals(lc.get(6).coverage(), Coverage.COVERED);
        assertEquals(lc.get(8).coverage(), Coverage.COVERED);
    }
}
