"""Tests for OpenTelemetry tracing (graceful fallback)."""

from fusionagi.api.otel import NoOpSpan, NoOpTracer, get_tracer, trace_span


def test_noop_span():
    """NoOpSpan operations should be safe no-ops."""
    span = NoOpSpan()
    span.set_attribute("key", "value")
    span.set_status(None)
    span.record_exception(Exception("test"))
    span.end()


def test_noop_tracer():
    """NoOpTracer should return NoOpSpan."""
    tracer = NoOpTracer()
    span = tracer.start_span("test")
    assert isinstance(span, NoOpSpan)


def test_noop_context_manager():
    """NoOpTracer context manager should work."""
    tracer = NoOpTracer()
    with tracer.start_as_current_span("test") as span:
        assert isinstance(span, NoOpSpan)
        span.set_attribute("key", "value")


def test_get_tracer_returns_tracer():
    """get_tracer should return a tracer (NoOp when otel not installed)."""
    tracer = get_tracer()
    assert tracer is not None


def test_trace_span_context_manager():
    """trace_span should work as a context manager."""
    with trace_span("test_span", attributes={"key": "value"}) as span:
        assert span is not None