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<?php
declare(strict_types=1);
namespace OpenTracing\Tests\Mock;
use OpenTracing\InvalidReferenceArgumentException;
use OpenTracing\UnsupportedFormatException;
use OpenTracing\Mock\MockTracer;
use OpenTracing\NoopSpanContext;
use OpenTracing\Reference;
use OpenTracing\Span;
use OpenTracing\SpanContext;
use PHPUnit\Framework\TestCase;
/**
* @covers MockTracer
*/
final class MockTracerTest extends TestCase
{
private const OPERATION_NAME = 'test_name';
private const FORMAT = 'test_format';
public function testStartActiveSpanSuccess()
{
$tracer = new MockTracer();
$scope = $tracer->startActiveSpan(self::OPERATION_NAME);
$activeSpan = $tracer->getActiveSpan();
$this->assertEquals($scope->getSpan(), $activeSpan);
}
public function testStartSpanSuccess()
{
$tracer = new MockTracer();
$tracer->startSpan(self::OPERATION_NAME);
$activeSpan = $tracer->getActiveSpan();
$this->assertNull($activeSpan);
}
public function testStartSpanWithReference(): void
{
$tracer = new MockTracer();
$tracer->startSpan('parent_name');
/** @var Span $parentSpan */
$parentSpan = $tracer->getSpans()[0];
$tracer->startSpan(
self::OPERATION_NAME,
['references' => [Reference::createForSpan(Reference::CHILD_OF, $parentSpan)]]
);
$activeSpan = $tracer->getActiveSpan();
self::assertNull($activeSpan);
}
public function testStartSpanWithReferenceWithoutExpectedContextType(): void
{
$tracer = new MockTracer();
$notAMockContext = new NoopSpanContext();
$this->expectException(InvalidReferenceArgumentException::class);
$tracer->startSpan(
self::OPERATION_NAME,
['references' => [new Reference(Reference::CHILD_OF, $notAMockContext)]]
);
}
public function testInjectWithNoInjectorsFails()
{
$tracer = new MockTracer();
$span = $tracer->startSpan(self::OPERATION_NAME);
$carrier = [];
$this->expectException(UnsupportedFormatException::class);
$tracer->inject($span->getContext(), self::FORMAT, $carrier);
}
public function testInjectSuccess()
{
$actualSpanContext = null;
$actualCarrier = null;
$injector = function ($spanContext, &$carrier) use (&$actualSpanContext, &$actualCarrier) {
$actualSpanContext = $spanContext;
$actualCarrier = $carrier;
};
$tracer = new MockTracer([self::FORMAT => $injector]);
$span = $tracer->startSpan(self::OPERATION_NAME);
$carrier = [];
$tracer->inject($span->getContext(), self::FORMAT, $carrier);
$this->assertSame($span->getContext(), $actualSpanContext);
$this->assertSame($carrier, $actualCarrier);
}
public function testExtractWithNoExtractorsFails()
{
$tracer = new MockTracer();
$carrier = [];
$this->expectException(UnsupportedFormatException::class);
$tracer->extract(self::FORMAT, $carrier);
}
public function testExtractSuccess()
{
$actualSpanContext = null;
$actualCarrier = null;
$extractor = function ($carrier) use (&$actualCarrier) {
$actualCarrier = $carrier;
return new NoopSpanContext();
};
$tracer = new MockTracer([], [self::FORMAT => $extractor]);
$carrier = [
'TRACE_ID' => 'trace_id'
];
$spanContext = $tracer->extract(self::FORMAT, $carrier);
$this->assertInstanceOf(SpanContext::class, $spanContext);
}
public function testFlushSuccess()
{
$tracer = new MockTracer();
$tracer->startSpan(self::OPERATION_NAME);
$this->assertCount(1, $tracer->getSpans());
$tracer->flush();
$this->assertCount(0, $tracer->getSpans());
}
}
|
