private List<String> lines(final int lineCount) {
    List<String> lines = new ArrayList<>();
    for (int i = 0; i < lineCount; i++) {
      lines.add(testName.getMethodName());
    }
    return lines;
  }
Validates number of files under this.dir while ignoring this.dirOfDeletedFiles.
geode-core/src/integrationTest/java/org/apache/geode/internal/statistics/DiskSpaceLimitIntegrationTest.java