47 lines
1.8 KiB
Java
47 lines
1.8 KiB
Java
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package com.baiyue.common.web;
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import org.junit.jupiter.api.Test;
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import static org.assertj.core.api.Assertions.assertThat;
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class TraceParentTest {
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@Test
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void parsesCanonicalVersion00AndCreatesLocalChild() {
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TraceParent remote = TraceParent.parse(
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"00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01").orElseThrow();
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TraceParent local = TraceParent.childOf(remote);
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assertThat(local.traceId()).isEqualTo(remote.traceId());
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assertThat(local.parentId()).matches("[0-9a-f]{16}")
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.isNotEqualTo(remote.parentId())
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.isNotEqualTo("0000000000000000");
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assertThat(local.traceFlags()).isEqualTo("01");
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assertThat(local.value()).hasSize(TraceParent.HEADER_LENGTH);
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}
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@Test
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void rejectsNonCanonicalUnsupportedAndZeroIdentifiers() {
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assertThat(TraceParent.parse(
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"00-4BF92F3577B34DA6A3CE929D0E0E4736-00f067aa0ba902b7-01")).isEmpty();
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assertThat(TraceParent.parse(
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"01-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01")).isEmpty();
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assertThat(TraceParent.parse(
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"00-00000000000000000000000000000000-00f067aa0ba902b7-01")).isEmpty();
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assertThat(TraceParent.parse(
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"00-4bf92f3577b34da6a3ce929d0e0e4736-0000000000000000-01")).isEmpty();
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assertThat(TraceParent.parse("x".repeat(10_000))).isEmpty();
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}
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@Test
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void createsCanonicalNonZeroRootAndNormalizesLegacyHex() {
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TraceParent root = TraceParent.newRoot("ABCDEF0123456789ABCDEF0123456789");
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assertThat(root.traceId()).isEqualTo("abcdef0123456789abcdef0123456789");
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assertThat(root.parentId()).matches("[0-9a-f]{16}").isNotEqualTo("0000000000000000");
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assertThat(root.value()).matches(
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"00-abcdef0123456789abcdef0123456789-[0-9a-f]{16}-00");
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}
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}
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