tweak tests

Author: duncanpo

test/performance/traceTest.m

@@ -20,25 +20,25 @@ function setupOnce(testCase)
             testdir = fileparts(mfilename("fullpath"));
             addpath(fullfile(testdir, ".."));  % add directory where common setup and teardown code lives
             commonSetupOnce(testCase);
+
+            % create a global tracer provider
+            import opentelemetry.sdk.trace.*
+            tp = TracerProvider(BatchSpanProcessor());
+            setTracerProvider(tp);
         end
     end
 
     methods (TestMethodSetup)
         function setup(testCase)
             commonSetup(testCase);
-
-            % create a global tracer provider
-            import opentelemetry.sdk.trace.*
-            tp = TracerProvider(BatchSpanProcessor());
-            setTracerProvider(tp);
         end
     end
 
     methods (TestMethodTeardown)
         function teardown(testCase)
             % Flush all spans that have not yet been exported
             tp = opentelemetry.trace.Provider.getTracerProvider();
-            opentelemetry.sdk.trace.Cleanup.forceFlush(tp);
+            assert(opentelemetry.sdk.trace.Cleanup.forceFlush(tp));
 
             commonTeardown(testCase);
         end