test(publish-metrics): add tests for otel tracing #2718
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Description
Implementing tests for
publish-metrics
tracing.FileSpanExporter
is created for testing purposes and is enabled through theexporter
and__outputPath
setting in the OTel reporter configuration:Both the
ConsoleSpanExporter
andInMemorySpanExporter
were considered for testing purposes but creating a custom file exporter ended up being the most straightforward option with the least possible change to the logic of the OTel reporter.An extensive test for the
HTTP
engine tracing basic functionality support has been added including a test for theparallel
scenario configuration and test runs with errors.Pre-merge checklist