}
@Test
public void injectInputVariables_filePath() throws Exception {
String lesson = "meh ${file_path}";
String result = new RbVariableInjector(lesson, OneFailingKoan.class.getDeclaredMethod("koanMethod"))
.injectLessonVariables();
String firstPkgName = "com";
// just inspect anything beyond the root of the project
result = result.substring(result.indexOf(firstPkgName)+firstPkgName.length(), result.length());
assertTrue(result.indexOf(firstPkgName) < result.indexOf("sandwich"));