Examples with TestCounter org.apache.flink.metrics.util.TestCounter used on opensource projects

Example 1 with TestCounter

use of org.apache.flink.metrics.util.TestCounter in project flink by apache.

the class StatsDReporterTest method testStatsDCountersReporting.

/**
 * Tests that counter are properly reported via the StatsD reporter.
 */
@Test
void testStatsDCountersReporting() throws Exception {
    Set<String> expectedLines = new HashSet<>(2);
    expectedLines.add("metric:100|g");
    testMetricAndAssert(new TestCounter(100), "metric", expectedLines);
}

Example 2 with TestCounter

use of org.apache.flink.metrics.util.TestCounter in project flink by apache.

the class FlinkCounterWrapperTest method testWrapperIncDec.

@Test
void testWrapperIncDec() {
    Counter counter = new TestCounter();
    counter.inc();
    FlinkCounterWrapper wrapper = new FlinkCounterWrapper(counter);
    assertThat(wrapper.getCount()).isEqualTo(1L);
    wrapper.dec();
    assertThat(wrapper.getCount()).isEqualTo(0L);
    wrapper.inc(2);
    assertThat(wrapper.getCount()).isEqualTo(2L);
    wrapper.dec(2);
    assertThat(wrapper.getCount()).isEqualTo(0L);
}

Example 3 with TestCounter

use of org.apache.flink.metrics.util.TestCounter in project flink by apache.

the class StatsDReporterTest method testAddingMetrics.

/**
 * Tests that the registered metrics' names don't contain invalid characters.
 */
@Test
void testAddingMetrics() {
    String counterName = "testCounter";
    final String scope = "scope";
    final char delimiter = '_';
    MetricGroup metricGroup = TestMetricGroup.newBuilder().setMetricIdentifierFunction((metricName, characterFilter) -> scope + delimiter + metricName).build();
    TestingStatsDReporter reporter = new TestingStatsDReporter();
    reporter.open(new MetricConfig());
    SimpleCounter myCounter = new SimpleCounter();
    reporter.notifyOfAddedMetric(myCounter, counterName, metricGroup);
    Map<Counter, String> counters = reporter.getCounters();
    assertThat(counters).containsKey(myCounter);
    String expectedCounterName = reporter.filterCharacters(scope) + delimiter + reporter.filterCharacters(counterName);
    assertThat(counters.get(myCounter)).isEqualTo(expectedCounterName);
}

Example 4 with TestCounter

use of org.apache.flink.metrics.util.TestCounter in project flink by apache.

the class StatsDReporterTest method testStatsDCountersReportingOfNegativeValues.

@Test
void testStatsDCountersReportingOfNegativeValues() throws Exception {
    Set<String> expectedLines = new HashSet<>();
    expectedLines.add("metric:0|g");
    expectedLines.add("metric:-51|g");
    testMetricAndAssert(new TestCounter(-51), "metric", expectedLines);
}