Skip to content

support tagging metadata for eval cases #36

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
realark merged 1 commit into from
Feb 11, 2026
Merged

support tagging metadata for eval cases #36

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions src/main/java/dev/braintrust/eval/Eval.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -99,6 +99,10 @@ private void evalOne(String experimentId, DatasetCase<INPUT, OUTPUT> datasetCase
rootSpan.setAttribute(
AttributeKey.stringArrayKey("braintrust.tags"), datasetCase.tags());
}
if (!datasetCase.metadata().isEmpty()) {
rootSpan.setAttribute(
AttributeKey.stringKey("braintrust.metadata"), toJson(datasetCase.metadata()));
}
try (var rootScope = BraintrustContext.ofExperiment(experimentId, rootSpan).makeCurrent()) {
final TaskResult<INPUT, OUTPUT> taskResult;
{ // run task
Expand Down
29 changes: 29 additions & 0 deletions src/test/java/dev/braintrust/eval/EvalTest.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -204,6 +204,35 @@ public List<Score> score(
assertTrue(
tags.contains("sweet") || tags.contains("savory"),
"tags should contain taste");
var metadata =
span.getAttributes().get(AttributeKey.stringKey("braintrust.metadata"));
assertNotNull(metadata, "root span should have metadata");

// Parse metadata JSON and verify values based on which case this is
@SuppressWarnings("unchecked")
Map<String, Object> metadataMap = fromJson(metadata, Map.class);
assertNotNull(metadataMap, "metadata should parse as a map");
assertTrue(metadataMap.containsKey("calories"), "metadata should contain calories");
assertTrue(metadataMap.containsKey("season"), "metadata should contain season");

if (tags.contains("red")) {
// strawberry case
assertEquals(
32, metadataMap.get("calories"), "strawberry should have 32 calories");
assertEquals(
"summer",
metadataMap.get("season"),
"strawberry should be summer season");
} else {
// asparagus case
assertEquals(
20, metadataMap.get("calories"), "asparagus should have 20 calories");
assertEquals(
"spring",
metadataMap.get("season"),
"asparagus should be spring season");
}

numRootSpans.incrementAndGet();
}
}
Expand Down