try make log test more robust

Author: scottgerring

opentelemetry-otlp/tests/integration_test/README.md

@@ -6,9 +6,5 @@ The tests connect directly to the collector on `localhost:4317` and `localhost:4
 has popped back out into the files output by the collector.
 
 For this to work, you need a couple of things:
-
 * Docker, for the test container
-* TCP/4317 and TCP/4318 free on your local machine. If you are running another collector, you'll need to stop it for the tests to run 
-
-
-
+* TCP/4317 and TCP/4318 free on your local machine. If you are running another collector, you'll need to stop it for the tests to run

opentelemetry-otlp/tests/integration_test/otel-collector-config.yaml

@@ -11,6 +11,7 @@ exporters:
     path: /testresults/traces.json
   file/logs:
     path: /testresults/logs.json
+    rotation:
   file/metrics:
     path: /testresults/metrics.json
 

opentelemetry-otlp/tests/integration_test/tests/logs.rs

@@ -50,7 +50,7 @@ pub async fn test_logs() -> Result<()> {
     info!(target: "my-target", "hello from {}. My price is {}.", "banana", 2.99);
     let _ = logger_provider.shutdown();
 
-    tokio::time::sleep(Duration::from_secs(5)).await;
+    tokio::time::sleep(Duration::from_secs(10)).await;
 
     assert_logs_results(test_utils::LOGS_FILE, "expected/logs.json");