ObservingOptionsTest.java

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package org.apache.hc.client5.http.observation;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.util.EnumSet;
import java.util.concurrent.atomic.AtomicBoolean;

import io.micrometer.observation.ObservationPredicate;
import org.junit.jupiter.api.Test;

class ObservingOptionsTest {

    @Test
    void builderWiresFields() {
        final AtomicBoolean predCalled = new AtomicBoolean(false);
        final ObservationPredicate micrometerFilter = (name, ctx) -> {
            predCalled.set(true);
            return true;
        };

        final ObservingOptions opts = ObservingOptions.builder()
                .metrics(ObservingOptions.allMetricSets())
                .tagLevel(ObservingOptions.TagLevel.EXTENDED)
                .micrometerFilter(micrometerFilter)
                .spanSampling(uri -> uri != null && uri.contains("httpbin"))
                .build();

        assertTrue(opts.metricSets.containsAll(EnumSet.allOf(ObservingOptions.MetricSet.class)));
        assertEquals(ObservingOptions.TagLevel.EXTENDED, opts.tagLevel);
        assertTrue(opts.micrometerFilter.test("x", new io.micrometer.observation.Observation.Context()));
        assertTrue(predCalled.get());
        assertTrue(opts.spanSampling.test("https://httpbin.org/get"));
        assertFalse(opts.spanSampling.test("https://example.org/"));
    }

    @Test
    void defaultIsBasicLow() {
        final ObservingOptions d = ObservingOptions.DEFAULT;
        assertTrue(d.metricSets.contains(ObservingOptions.MetricSet.BASIC));
        assertEquals(ObservingOptions.TagLevel.LOW, d.tagLevel);
    }
}