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require 'spec_helper'
RSpec.describe Jaeger::SpanContext do
describe '.create_from_parent_context' do
let(:parent) do
described_class.new(
trace_id: trace_id,
parent_id: nil,
span_id: parent_span_id,
flags: parent_flags
)
end
let(:trace_id) { 'trace-id' }
let(:parent_span_id) { 'span-id' }
let(:parent_flags) { described_class::Flags::SAMPLED }
it 'has same trace ID' do
context = described_class.create_from_parent_context(parent)
expect(context.trace_id).to eq(trace_id)
end
it 'has same parent span id as parent id' do
context = described_class.create_from_parent_context(parent)
expect(context.parent_id).to eq(parent_span_id)
end
it 'has same its own span id' do
context = described_class.create_from_parent_context(parent)
expect(context.span_id).not_to eq(parent_span_id)
end
it 'has parent flags' do
context = described_class.create_from_parent_context(parent)
expect(context.flags).to eq(parent_flags)
end
it 'has parent baggage' do
parent.set_baggage_item('foo', 'bar')
context = described_class.create_from_parent_context(parent)
expect(context.baggage).to eq('foo' => 'bar')
# Ensure changing parent baggage doesn't change the child
parent.set_baggage_item('foo', 'bar2')
expect(context.baggage).to eq('foo' => 'bar')
end
end
describe '#to_trace_id' do
it 'returns trace id in hex format' do
span_context = build_span_context(trace_id: 67_667_974_448_284_343)
expect(span_context.to_trace_id).to eq('f067aa0ba902b7')
end
end
describe '#to_span_id' do
it 'returns span id in hex format' do
span_context = build_span_context(span_id: 67_667_974_448_284_343)
expect(span_context.to_span_id).to eq('f067aa0ba902b7')
end
end
def build_span_context(opts)
described_class.new(**{
trace_id: Jaeger::TraceId.generate,
span_id: Jaeger::TraceId.generate,
flags: 0
}.merge(opts))
end
end
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