int iters = scaledRandomIntBetween(20, 100);
final Index index = new Index("test");
final String name = "ngr";
for (int i = 0; i < iters; i++) {
Version v = randomVersion(random());
if (v.onOrAfter(Version.V_0_90_2)) {
Builder builder = newAnalysisSettingsBuilder().put("min_gram", 2).put("max_gram", 3).put("token_chars", "letter,digit");
boolean compatVersion = false;
if ((compatVersion = random().nextBoolean())) {
builder.put("version", "4." + random().nextInt(3));
builder.put("side", "back");