ExtractedData data = new ExtractedData();
RevisionRange revisionRange = new RevisionRange(11, 101);
data.setRevisionRange(revisionRange);
ChartBuilder chartBuilder = new ChartBuilder(data);
VersionedFile versionedFile = new VersionedFile("test");
versionedFile.setCurrentLoc(new Author("sergio"), 22);
versionedFile.setCurrentLoc(new Author("ivan"), 38);
versionedFile.setCurrentLoc(new Author("dummy"), 40);
File outputFile = new File("chart-test.png");
outputFile.delete();
assertFalse(outputFile.exists());
chartBuilder.renderCurrentLocByAuthor(versionedFile, new File("chart-test.png"));
assertTrue(outputFile.exists());