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Improve test times for tests using RandomObjects::addFields #31556

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merged 2 commits into from
Jun 26, 2018
Merged

Improve test times for tests using RandomObjects::addFields #31556

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c2b4f08
improve Randomobjects::addfield logic
sohaibiftikhar Jun 25, 2018
81c1645
simplified addFields
sohaibiftikhar Jun 25, 2018
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2 changes: 1 addition & 1 deletion server/src/test/java/org/elasticsearch/action/ingest/SimulateDocumentVerboseResultTests.java
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Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@
public class SimulateDocumentVerboseResultTests extends AbstractXContentTestCase<SimulateDocumentVerboseResult> {

static SimulateDocumentVerboseResult createTestInstance(boolean withFailures) {
int numDocs = randomIntBetween(0, 10);
int numDocs = randomIntBetween(0, 5);
List<SimulateProcessorResult> results = new ArrayList<>();
for (int i = 0; i<numDocs; i++) {
boolean isSuccessful = !(withFailures && randomBoolean());
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2 changes: 1 addition & 1 deletion server/src/test/java/org/elasticsearch/action/ingest/SimulatePipelineResponseTests.java
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Expand Up @@ -94,7 +94,7 @@ public void testSerialization() throws IOException {
}

static SimulatePipelineResponse createInstance(String pipelineId, boolean isVerbose, boolean withFailure) {
int numResults = randomIntBetween(1, 10);
int numResults = randomIntBetween(1, 5);
List<SimulateDocumentResult> results = new ArrayList<>(numResults);
for (int i = 0; i < numResults; i++) {
if (isVerbose) {
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23 changes: 16 additions & 7 deletions test/framework/src/main/java/org/elasticsearch/test/RandomObjects.java
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Expand Up @@ -175,7 +175,7 @@ public static BytesReference randomSource(Random random, XContentType xContentTy
public static BytesReference randomSource(Random random, XContentType xContentType, int minNumFields) {
try (XContentBuilder builder = XContentFactory.contentBuilder(xContentType)) {
builder.startObject();
addFields(random, builder, minNumFields, 0);
addFields(random, builder, minNumFields, 0, 0);
builder.endObject();
return BytesReference.bytes(builder);
} catch(IOException e) {
Expand All @@ -185,14 +185,21 @@ public static BytesReference randomSource(Random random, XContentType xContentTy

/**
* Randomly adds fields, objects, or arrays to the provided builder. The maximum depth is 5.
* @return Returns the number of fields in the document
*/
private static void addFields(Random random, XContentBuilder builder, int minNumFields, int currentDepth) throws IOException {
int numFields = randomIntBetween(random, minNumFields, 10);
private static int addFields(Random random, XContentBuilder builder, int minNumFields, int currentDepth,
int currentFields) throws IOException {
int maxTotalFields = 200;
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I'm not sure what value is good for this. From my results, 200 seemed to give decently big documents without going beyond 100KB.

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I don't think that we need such big docs, 100kb seems a lot still even if it's the upper bound.

int maxFields = Math.max(minNumFields, 10 - (currentFields * 10)/maxTotalFields); // Map to range 0-10
int numFields = randomIntBetween(random, minNumFields, maxFields);
int maxDepth = 5 - (currentFields * 5)/maxTotalFields; // Map to range 0-5
currentFields += numFields;
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with the goal of trying to keep things simple, I wonder if decreasing the max number of fields e.g. to 5 would be enough. What do you think?

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Could be. Will need to test this for the average case. The potentially maximum number of fields would still be more than 3000.

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maybe we should also decrease the chance that we add another child object compared to leaf fields.

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I didn't quite understand. We, already have a check on the depth which takes care of this? Or do you mean something else?

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yes we have a check, but I think we end up adding more objects and arrays than we need.

if (currentDepth < 5 && random.nextBoolean()) {

the above if (taken from addFields method) means that we add a new object or array if maxDepth allows, one out of two times. Maybe we want to lower that probability?

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@sohaibiftikhar sohaibiftikhar Jun 25, 2018 •
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Ah okay. I will try to lower the probability based on current depth. What did you mean by leaf fields? The neighbours?

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you can also do something similar to what LuceneTestCase#rarely does. we can do it regardless depth to keep things simple?

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Yes. Okay.

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@javanna I simplified it now. So that max fields is 5 and the probability is 30%. It seems to give similar results in terms of timing.

for (int i = 0; i < numFields; i++) {
if (currentDepth < 5 && random.nextBoolean()) {
if (currentDepth < maxDepth && random.nextBoolean()) {
if (random.nextBoolean()) {
builder.startObject(RandomStrings.randomAsciiOfLengthBetween(random, 6, 10));
addFields(random, builder, minNumFields, currentDepth + 1);
currentFields =
addFields(random, builder, minNumFields, currentDepth + 1, currentFields);
builder.endObject();
} else {
builder.startArray(RandomStrings.randomAsciiOfLengthBetween(random, 6, 10));
Expand All @@ -205,7 +212,8 @@ private static void addFields(Random random, XContentBuilder builder, int minNum
for (int j = 0; j < numElements; j++) {
if (object) {
builder.startObject();
addFields(random, builder, minNumFields, 5);
currentFields =
addFields(random, builder, minNumFields, 5, currentFields);
builder.endObject();
} else {
builder.value(randomFieldValue(random, dataType));
Expand All @@ -215,9 +223,10 @@ private static void addFields(Random random, XContentBuilder builder, int minNum
}
} else {
builder.field(RandomStrings.randomAsciiOfLengthBetween(random, 6, 10),
randomFieldValue(random, randomDataType(random)));
randomFieldValue(random, randomDataType(random)));
}
}
return currentFields;
}

private static int randomDataType(Random random) {
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