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JaegerPropagatorTest.java
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JaegerPropagatorTest.java
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/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.extension.trace.propagation;
import static io.opentelemetry.api.baggage.Baggage.fromContext;
import static io.opentelemetry.extension.trace.propagation.JaegerPropagator.BAGGAGE_HEADER;
import static io.opentelemetry.extension.trace.propagation.JaegerPropagator.BAGGAGE_PREFIX;
import static io.opentelemetry.extension.trace.propagation.JaegerPropagator.DEPRECATED_PARENT_SPAN;
import static io.opentelemetry.extension.trace.propagation.JaegerPropagator.PROPAGATION_HEADER;
import static io.opentelemetry.extension.trace.propagation.JaegerPropagator.PROPAGATION_HEADER_DELIMITER;
import static org.assertj.core.api.Assertions.assertThat;
import com.google.common.collect.ImmutableMap;
import io.jaegertracing.internal.JaegerSpanContext;
import io.jaegertracing.internal.propagation.TextMapCodec;
import io.opentelemetry.api.baggage.Baggage;
import io.opentelemetry.api.baggage.BaggageEntryMetadata;
import io.opentelemetry.api.trace.Span;
import io.opentelemetry.api.trace.SpanContext;
import io.opentelemetry.api.trace.SpanId;
import io.opentelemetry.api.trace.TraceFlags;
import io.opentelemetry.api.trace.TraceId;
import io.opentelemetry.api.trace.TraceState;
import io.opentelemetry.context.Context;
import io.opentelemetry.context.propagation.TextMapGetter;
import io.opentelemetry.context.propagation.TextMapSetter;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import javax.annotation.Nullable;
import org.junit.jupiter.api.Test;
/** Unit tests for {@link io.opentelemetry.extension.trace.propagation.JaegerPropagator}. */
class JaegerPropagatorTest {
private static final long TRACE_ID_HI = 77L;
private static final long TRACE_ID_LOW = 22L;
private static final String TRACE_ID = "000000000000004d0000000000000016";
private static final long SHORT_TRACE_ID_HI = 0L;
private static final long SHORT_TRACE_ID_LOW = 2322222L;
private static final String SHORT_TRACE_ID = "00000000000000000000000000236f2e";
private static final String SPAN_ID = "0000000000017c29";
private static final long SPAN_ID_LONG = 97321L;
private static final long DEPRECATED_PARENT_SPAN_LONG = 0L;
private static final TextMapSetter<Map<String, String>> setter = Map::put;
private static final TextMapGetter<Map<String, String>> getter =
new TextMapGetter<Map<String, String>>() {
@Override
public Iterable<String> keys(Map<String, String> carrier) {
return carrier.keySet();
}
@Nullable
@Override
public String get(Map<String, String> carrier, String key) {
return carrier.get(key);
}
};
private final JaegerPropagator jaegerPropagator = JaegerPropagator.getInstance();
private static SpanContext getSpanContext(Context context) {
return Span.fromContext(context).getSpanContext();
}
private static Context withSpanContext(SpanContext spanContext, Context context) {
return context.with(Span.wrap(spanContext));
}
@Test
void inject_invalidContext() {
Map<String, String> carrier = new LinkedHashMap<>();
jaegerPropagator.inject(
withSpanContext(
SpanContext.create(
TraceId.getInvalid(),
SpanId.getInvalid(),
TraceFlags.getSampled(),
TraceState.builder().put("foo", "bar").build()),
Context.current()),
carrier,
setter);
assertThat(carrier).hasSize(0);
}
@Test
void inject_SampledContext() {
Map<String, String> carrier = new LinkedHashMap<>();
jaegerPropagator.inject(
withSpanContext(
SpanContext.create(TRACE_ID, SPAN_ID, TraceFlags.getSampled(), TraceState.getDefault()),
Context.current()),
carrier,
setter);
assertThat(carrier)
.containsEntry(
PROPAGATION_HEADER,
generateTraceIdHeaderValue(TRACE_ID, SPAN_ID, DEPRECATED_PARENT_SPAN, "1"));
}
@Test
void inject_SampledContext_nullCarrierUsage() {
Map<String, String> carrier = new LinkedHashMap<>();
jaegerPropagator.inject(
withSpanContext(
SpanContext.create(TRACE_ID, SPAN_ID, TraceFlags.getSampled(), TraceState.getDefault()),
Context.current()),
null,
(TextMapSetter<Map<String, String>>) (ignored, key, value) -> carrier.put(key, value));
assertThat(carrier)
.containsEntry(
PROPAGATION_HEADER,
generateTraceIdHeaderValue(TRACE_ID, SPAN_ID, DEPRECATED_PARENT_SPAN, "1"));
}
@Test
void inject_NotSampledContext() {
Map<String, String> carrier = new LinkedHashMap<>();
jaegerPropagator.inject(
withSpanContext(
SpanContext.create(TRACE_ID, SPAN_ID, TraceFlags.getDefault(), TraceState.getDefault()),
Context.current()),
carrier,
setter);
assertThat(carrier)
.containsEntry(
PROPAGATION_HEADER,
generateTraceIdHeaderValue(TRACE_ID, SPAN_ID, DEPRECATED_PARENT_SPAN, "0"));
}
@Test
void inject_SampledContext_withBaggage() {
Map<String, String> carrier = new LinkedHashMap<>();
Context context =
Context.current()
.with(
Span.wrap(
SpanContext.create(
TRACE_ID, SPAN_ID, TraceFlags.getSampled(), TraceState.getDefault())))
.with(Baggage.builder().put("foo", "bar").build());
jaegerPropagator.inject(context, carrier, setter);
assertThat(carrier)
.containsEntry(
PROPAGATION_HEADER,
generateTraceIdHeaderValue(TRACE_ID, SPAN_ID, DEPRECATED_PARENT_SPAN, "1"));
assertThat(carrier).containsEntry(BAGGAGE_PREFIX + "foo", "bar");
}
@Test
void inject_baggageOnly() {
// Metadata won't be propagated, but it MUST NOT cause ay problem.
Baggage baggage =
Baggage.builder()
.put("nometa", "nometa-value")
.put("meta", "meta-value", BaggageEntryMetadata.create("somemetadata; someother=foo"))
.build();
Map<String, String> carrier = new LinkedHashMap<>();
jaegerPropagator.inject(Context.root().with(baggage), carrier, Map::put);
assertThat(carrier)
.containsExactlyInAnyOrderEntriesOf(
ImmutableMap.of(
BAGGAGE_PREFIX + "nometa", "nometa-value",
BAGGAGE_PREFIX + "meta", "meta-value"));
}
@Test
void inject_nullContext() {
Map<String, String> carrier = new LinkedHashMap<>();
jaegerPropagator.inject(null, carrier, setter);
assertThat(carrier).isEmpty();
}
@Test
void inject_nullSetter() {
Map<String, String> carrier = new LinkedHashMap<>();
Context context =
withSpanContext(
SpanContext.create(TRACE_ID, SPAN_ID, TraceFlags.getDefault(), TraceState.getDefault()),
Context.current());
jaegerPropagator.inject(context, carrier, null);
assertThat(carrier).isEmpty();
}
@Test
void extract_Nothing() {
// Context remains untouched.
assertThat(
jaegerPropagator.extract(
Context.current(), Collections.<String, String>emptyMap(), getter))
.isSameAs(Context.current());
}
@Test
void extract_EmptyHeaderValue() {
Map<String, String> invalidHeaders = new LinkedHashMap<>();
invalidHeaders.put(PROPAGATION_HEADER, "");
assertThat(getSpanContext(jaegerPropagator.extract(Context.current(), invalidHeaders, getter)))
.isSameAs(SpanContext.getInvalid());
}
@Test
void extract_NotEnoughParts() {
Map<String, String> invalidHeaders = new LinkedHashMap<>();
invalidHeaders.put(PROPAGATION_HEADER, "aa:bb:cc");
verifyInvalidBehavior(invalidHeaders);
}
private void verifyInvalidBehavior(Map<String, String> invalidHeaders) {
Context input = Context.current();
Context result = jaegerPropagator.extract(input, invalidHeaders, getter);
assertThat(result).isSameAs(input);
assertThat(getSpanContext(result)).isSameAs(SpanContext.getInvalid());
}
@Test
void extract_TooManyParts() {
Map<String, String> invalidHeaders = new LinkedHashMap<>();
invalidHeaders.put(PROPAGATION_HEADER, "aa:bb:cc:dd:ee");
verifyInvalidBehavior(invalidHeaders);
}
@Test
void extract_InvalidTraceId() {
Map<String, String> invalidHeaders = new LinkedHashMap<>();
invalidHeaders.put(
PROPAGATION_HEADER,
generateTraceIdHeaderValue(
"abcdefghijklmnopabcdefghijklmnop", SPAN_ID, DEPRECATED_PARENT_SPAN, "0"));
verifyInvalidBehavior(invalidHeaders);
}
@Test
void extract_InvalidTraceId_Size() {
Map<String, String> invalidHeaders = new LinkedHashMap<>();
invalidHeaders.put(
PROPAGATION_HEADER,
generateTraceIdHeaderValue(TRACE_ID + "00", SPAN_ID, DEPRECATED_PARENT_SPAN, "0"));
verifyInvalidBehavior(invalidHeaders);
}
@Test
void extract_InvalidSpanId() {
Map<String, String> invalidHeaders = new LinkedHashMap<>();
invalidHeaders.put(
PROPAGATION_HEADER,
generateTraceIdHeaderValue(TRACE_ID, "abcdefghijklmnop", DEPRECATED_PARENT_SPAN, "0"));
verifyInvalidBehavior(invalidHeaders);
}
@Test
void extract_InvalidSpanId_Size() {
Map<String, String> invalidHeaders = new LinkedHashMap<>();
invalidHeaders.put(
PROPAGATION_HEADER,
generateTraceIdHeaderValue(TRACE_ID, SPAN_ID + "00", DEPRECATED_PARENT_SPAN, "0"));
verifyInvalidBehavior(invalidHeaders);
}
@Test
void extract_InvalidFlags() {
Map<String, String> invalidHeaders = new LinkedHashMap<>();
invalidHeaders.put(
PROPAGATION_HEADER,
generateTraceIdHeaderValue(TRACE_ID, SPAN_ID, DEPRECATED_PARENT_SPAN, ""));
verifyInvalidBehavior(invalidHeaders);
}
@Test
void extract_InvalidFlags_Size() {
Map<String, String> invalidHeaders = new LinkedHashMap<>();
invalidHeaders.put(
PROPAGATION_HEADER,
generateTraceIdHeaderValue(TRACE_ID, SPAN_ID, DEPRECATED_PARENT_SPAN, "10220"));
verifyInvalidBehavior(invalidHeaders);
}
@Test
void extract_InvalidFlags_NonNumeric() {
Map<String, String> invalidHeaders = new LinkedHashMap<>();
invalidHeaders.put(
PROPAGATION_HEADER,
generateTraceIdHeaderValue(TRACE_ID, SPAN_ID, DEPRECATED_PARENT_SPAN, "abcdefr"));
verifyInvalidBehavior(invalidHeaders);
}
@Test
void extract_SampledContext() {
Map<String, String> carrier = new LinkedHashMap<>();
JaegerSpanContext context =
new JaegerSpanContext(
TRACE_ID_HI, TRACE_ID_LOW, SPAN_ID_LONG, DEPRECATED_PARENT_SPAN_LONG, (byte) 5);
carrier.put(PROPAGATION_HEADER, TextMapCodec.contextAsString(context));
assertThat(getSpanContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(
SpanContext.createFromRemoteParent(
TRACE_ID, SPAN_ID, TraceFlags.getSampled(), TraceState.getDefault()));
}
@Test
void extract_NotSampledContext() {
Map<String, String> carrier = new LinkedHashMap<>();
JaegerSpanContext context =
new JaegerSpanContext(
TRACE_ID_HI, TRACE_ID_LOW, SPAN_ID_LONG, DEPRECATED_PARENT_SPAN_LONG, (byte) 0);
carrier.put(PROPAGATION_HEADER, TextMapCodec.contextAsString(context));
assertThat(getSpanContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(
SpanContext.createFromRemoteParent(
TRACE_ID, SPAN_ID, TraceFlags.getDefault(), TraceState.getDefault()));
}
@Test
void extract_SampledContext_Short_TraceId() {
Map<String, String> carrier = new LinkedHashMap<>();
JaegerSpanContext context =
new JaegerSpanContext(
SHORT_TRACE_ID_HI,
SHORT_TRACE_ID_LOW,
SPAN_ID_LONG,
DEPRECATED_PARENT_SPAN_LONG,
(byte) 1);
carrier.put(PROPAGATION_HEADER, TextMapCodec.contextAsString(context));
assertThat(getSpanContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(
SpanContext.createFromRemoteParent(
SHORT_TRACE_ID, SPAN_ID, TraceFlags.getSampled(), TraceState.getDefault()));
}
@Test
void extract_UrlEncodedContext() throws UnsupportedEncodingException {
Map<String, String> carrier = new LinkedHashMap<>();
JaegerSpanContext context =
new JaegerSpanContext(
TRACE_ID_HI, TRACE_ID_LOW, SPAN_ID_LONG, DEPRECATED_PARENT_SPAN_LONG, (byte) 5);
carrier.put(
PROPAGATION_HEADER, URLEncoder.encode(TextMapCodec.contextAsString(context), "UTF-8"));
assertThat(getSpanContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(
SpanContext.createFromRemoteParent(
TRACE_ID, SPAN_ID, TraceFlags.getSampled(), TraceState.getDefault()));
}
@Test
void extract_SampledContext_withBaggage() {
Map<String, String> carrier = new LinkedHashMap<>();
JaegerSpanContext context =
new JaegerSpanContext(
TRACE_ID_HI, TRACE_ID_LOW, SPAN_ID_LONG, DEPRECATED_PARENT_SPAN_LONG, (byte) 5);
carrier.put(PROPAGATION_HEADER, TextMapCodec.contextAsString(context));
carrier.put(BAGGAGE_PREFIX + "foo", "bar");
assertThat(getSpanContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(
SpanContext.createFromRemoteParent(
TRACE_ID, SPAN_ID, TraceFlags.getSampled(), TraceState.getDefault()));
assertThat(fromContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(Baggage.builder().put("foo", "bar").build());
}
@Test
void extract_baggageOnly_withPrefix() {
Map<String, String> carrier = new LinkedHashMap<>();
carrier.put(BAGGAGE_PREFIX + "nometa", "nometa-value");
carrier.put(BAGGAGE_PREFIX + "meta", "meta-value");
carrier.put("another", "value");
assertThat(fromContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(
Baggage.builder().put("nometa", "nometa-value").put("meta", "meta-value").build());
}
@Test
void extract_baggageOnly_withPrefix_emptyKey() {
Map<String, String> carrier = new LinkedHashMap<>();
carrier.put(BAGGAGE_PREFIX, "value"); // Not really a valid key.
assertThat(fromContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(Baggage.empty());
}
@Test
void extract_baggageOnly_withHeader() {
Map<String, String> carrier = new LinkedHashMap<>();
carrier.put(BAGGAGE_HEADER, "nometa=nometa-value,meta=meta-value");
assertThat(fromContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(
Baggage.builder().put("nometa", "nometa-value").put("meta", "meta-value").build());
}
@Test
void extract_baggageOnly_withHeader_andSpaces() {
Map<String, String> carrier = new LinkedHashMap<>();
carrier.put(BAGGAGE_HEADER, "nometa = nometa-value , meta = meta-value");
assertThat(fromContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(
Baggage.builder().put("nometa", "nometa-value").put("meta", "meta-value").build());
}
@Test
void extract_baggageOnly_withHeader_invalid() {
Map<String, String> carrier = new LinkedHashMap<>();
carrier.put(BAGGAGE_HEADER, "nometa+novalue");
assertThat(fromContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(Baggage.empty());
}
@Test
void extract_baggageOnly_withHeader_andPrefix() {
Map<String, String> carrier = new LinkedHashMap<>();
carrier.put(BAGGAGE_HEADER, "nometa=nometa-value,meta=meta-value");
carrier.put(BAGGAGE_PREFIX + "foo", "bar");
assertThat(fromContext(jaegerPropagator.extract(Context.current(), carrier, getter)))
.isEqualTo(
Baggage.builder()
.put("nometa", "nometa-value")
.put("meta", "meta-value")
.put("foo", "bar")
.build());
}
@Test
void extract_nullContext() {
assertThat(jaegerPropagator.extract(null, Collections.emptyMap(), getter))
.isSameAs(Context.root());
}
@Test
void extract_nullGetter() {
Context context =
withSpanContext(
SpanContext.create(TRACE_ID, SPAN_ID, TraceFlags.getDefault(), TraceState.getDefault()),
Context.current());
assertThat(jaegerPropagator.extract(context, Collections.emptyMap(), null)).isSameAs(context);
}
@Test
void toString_Valid() {
assertThat(jaegerPropagator.toString()).isEqualTo("JaegerPropagator");
}
private static String generateTraceIdHeaderValue(
String traceId, String spanId, char parentSpan, String sampled) {
return traceId
+ PROPAGATION_HEADER_DELIMITER
+ spanId
+ PROPAGATION_HEADER_DELIMITER
+ parentSpan
+ PROPAGATION_HEADER_DELIMITER
+ sampled;
}
}