test(otlp): added correctness test for new config option

Author: lucastemb

test/correctness/cases/otlp-metrics-summary-mode/config.yaml

@@ -0,0 +1,21 @@
+type: correctness
+runtime: docker
+analysis_mode: metrics
+baseline:
+  image: saluki-images/datadog-agent:testing-release
+  files:
+    - datadog.yaml:/etc/datadog-agent/datadog.yaml
+  additional_env_vars:
+    - DD_API_KEY=correctness-test
+comparison:
+  image: saluki-images/datadog-agent:testing-release
+  files:
+    - datadog.yaml:/etc/datadog-agent/datadog.yaml
+  additional_env_vars:
+    - DD_API_KEY=correctness-test
+    - DD_DATA_PLANE_ENABLED=true
+    - DD_DATA_PLANE_STANDALONE_MODE=false
+    - DD_DATA_PLANE_OTLP_ENABLED=true
+    - ADP_DD_DATA_PLANE_OTLP_RECEIVER_PROTOCOLS_GRPC_ENDPOINT=0.0.0.0:54317
+    - ADP_DD_DATA_PLANE_OTLP_RECEIVER_PROTOCOLS_HTTP_ENDPOINT=0.0.0.0:54318
+    - DD_AGGREGATE_CONTEXT_LIMIT=500000

test/correctness/cases/otlp-metrics-summary-mode/datadog.yaml

@@ -0,0 +1,15 @@
+# OTLP correctness test configuration for summary quantile reporting.
+hostname: "correctness-testing"
+api_key: dummy-api-key-correctness-testing
+health_port: 5555
+dd_url: "http://datadog-intake:2049"
+
+otlp_config:
+  metrics:
+    summaries:
+      mode: noquantiles
+  receiver:
+    protocols:
+      grpc:
+        endpoint: "0.0.0.0:54317"
+        max_recv_msg_size_mib: 4

test/correctness/cases/otlp-metrics-summary-mode/millstone.yaml

@@ -0,0 +1,9 @@
+seed: [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131]
+target: "grpc://$GROUP:54317/opentelemetry.proto.collector.metrics.v1.MetricsService/Export"
+aggregation_bucket_width_secs: 10
+volume: 1
+corpus:
+  size: 1
+  payload:
+    # ExportMetricsServiceRequest with one SummaryDataPoint and two quantiles.
+    static_base64: "CmMSYRJfChZvdGxwLnN1bW1hcnkucXVhbnRpbGVzWkUKQxkAACo2/pyXFyEKAAAAAAAAACkAAAAAAABZQDISCQAAAAAAAOA/EQAAAAAAAClAMhIJrkfhehSu7z8RAAAAAAAAOUA="