@Test
public void whenDoubleProbeFunctions() {
ProbeRenderer renderer = mock(ProbeRenderer.class);
registerDoubleMetric("foo", 10);
registerDoubleMetric("bar", 20);
metricsRegistry.render(renderer);
verify(renderer).start();
verify(renderer).renderDouble("foo", 10);
verify(renderer).renderDouble("bar", 20);
verify(renderer).finish();
verifyNoMoreInteractions(renderer);
}
@Test
public void whenException() {
ProbeRenderer renderer = mock(ProbeRenderer.class);
final ExpectedRuntimeException ex = new ExpectedRuntimeException();
metricsRegistry.register(
this,
"foo",
ProbeLevel.MANDATORY,
new LongProbeFunction<RenderTest>() {
@Override
public long get(RenderTest source) throws Exception {
throw ex;
}
});
metricsRegistry.render(renderer);
verify(renderer).start();
verify(renderer).renderException("foo", ex);
verify(renderer).finish();
verifyNoMoreInteractions(renderer);
}
@Test(expected = NullPointerException.class)
public void whenCalledWithNullRenderer() {
metricsRegistry.render(null);
}
