# A note on distributed tracing:
#
# Although Istio proxies are able to automatically send spans, they need some
# hints to tie together the entire trace. Applications need to propagate the
# appropriate HTTP headers so that when the proxies send span information, the
# spans can be correlated correctly into a single trace.
#
# To do this, an application needs to collect and propagate headers from the

 │                          │
 │  <span style="background-color:#272822"><font color="#FF4689">from</font></span><span style="background-color:#272822"><font color="#F8F8F2"> main </font></span><span style="background-color:#272822"><font color="#FF4689">import</font></span><span style="background-color:#272822"><font color="#F8F8F2"> app</font></span><span style="background-color:#272822">  </span>  │
 │                          │

 │                          │
 │  <span style="background-color:#272822"><font color="#FF4689">from</font></span><span style="background-color:#272822"><font color="#F8F8F2"> main </font></span><span style="background-color:#272822"><font color="#FF4689">import</font></span><span style="background-color:#272822"><font color="#F8F8F2"> app</font></span><span style="background-color:#272822">  </span>  │
 │                          │

	assert.NotEmpty(t, runtimeServiceSpans, "syncPod trace should have runtime service spans")

	for _, span := range imageServiceSpans {
		assert.Equal(t, span.Parent.SpanID(), rootSpan.SpanContext.SpanID(), fmt.Sprintf("image service span %s %s should be child of root span", span.Name, span.Parent.SpanID()))
	}

	for _, span := range runtimeServiceSpans {

					Addresses: []string{"1.2.3.4"},
					Hosts:     []string{"a.example.com", "b.example.com"},
					Ports: []*networking.ServicePort{{
						Number: 80,
						Name:   "http",
					}},
					SubjectAltNames: []string{"san1"},
					Resolution:      networking.ServiceEntry_DNS,
				},
			},
			result: []*workloadapi.Service{
				{
					Name:      "name",
					Namespace: "ns",
					Hostname:  "a.example.com",

	}
	output := fakeRecorder.Ended()
	if len(output) != 1 {
		t.Fatalf("got %d; expected len(output) == 1", len(output))
	}
	span := output[0]
	if span.Name() != filterName {
		t.Fatalf("got %s; expected span.Name == my-filter", span.Name())
	}

 * </code></pre>
 */
```

In order to label the coding language used in the multi-line snippet, you can use additional HTML, `<div class="code-block"><span class="label">Groovy</span>...</div>`:

```java
/**
 * <div class="code-block">
 * <span class="label">Groovy</span>
 * <pre><code class="language-groovy">
 * defaultTasks('some-task')
 * reportsDir = file('reports')
 * </code></pre>
 * </div>
 */
```

      # Note: this should probably be changed to use B3 or W3C TRACE_CONTEXT.
      # Lightstep recommends using B3 or TRACE_CONTEXT and most application
      # libraries from lightstep do not support x-ot-span-context.
      'x-ot-span-context',

      # Datadog tracing header. Propagate these headers if you use Datadog
      # tracing.
      'x-datadog-trace-id',
      'x-datadog-parent-id',
      'x-datadog-sampling-priority',

	ctx *testContext
	tc  context2.Context
	ts  traceapi.Span
}

// NewTest returns a new test wrapper for running a single test.
func NewTest(t *testing.T) Test {
	rtMu.Lock()
	defer rtMu.Unlock()

	if rt == nil {
		panic("call to scope without running the test framework")
	}

	ctx, span := tracing.Start(rt.suiteContext().traceContext, t.Name())

	runner := &testImpl{

	}

	// find the containing object
	base, span, _ := findObject(uintptr(e.data), 0, 0)

	if base == 0 {
		if isGoPointerWithoutSpan(e.data) {
			return
		}
		throw("runtime.SetFinalizer: pointer not in allocated block")
	}

	// Move base forward if we've got an allocation header.
	if !span.spanclass.noscan() && !heapBitsInSpan(span.elemsize) && span.spanclass.sizeclass() != 0 {
		base += mallocHeaderSize
	}