@Test
  public void timersNotRegisteredIfFunctionDeployedButNotExecuted() {
    startServerWithStatsEnabled();

    deployFunction(FunctionToTimeWithResult.class);

    assertThat(getExecutionsTimerValuesFor(FunctionToTimeWithResult.ID))
        .as("Function executions timers on server")
        .isEmpty();
  }
Acceptance tests for function executions timer on a loner server with no locator
geode-assembly/src/acceptanceTest/java/org/apache/geode/metrics/function/executions/FunctionExecutionsTimerLonerTest.java