Add tracing test

Signed-off-by: Colin James <contificate@gmail.com>

Author: contificate

tests/misc/test_tracing.py

@@ -0,0 +1,45 @@
+import logging
+import pytest
+import time
+import uuid
+from urllib.parse import urlparse
+import requests
+
+@pytest.fixture
+def tracing_endpoint(request):
+    endpoint = request.config.getoption("--tracing-endpoint")
+    if endpoint is None:
+        pytest.exit("Missing required option: --tracing-endpoint")
+    return endpoint
+
+def locate_span(data, operation, tag):
+    if not data:
+        return None
+
+    for spans in data:
+        for span in spans:
+            if span.get('name') == operation:
+                if span.get('tags', {}).get('test.tag') == tag:
+                    return span
+
+def test_tracing(tracing_endpoint, host):
+    operation = "xe observer-list"
+    url = urlparse(tracing_endpoint)
+    api = f"{url.scheme}://{url.netloc}/api/v2/traces"
+    tag = str(uuid.uuid4())
+    logging.info(f"Peforming operation tagged with: {tag}")
+    o = host.ssh(f'BAGGAGE="test.tag={tag}" {operation}')
+    params = { "spanName": operation }
+
+    logging.info(f"Querying endpoint to locate our root span")
+    root_span = None
+    for i in range(15):
+        response = requests.get(api, params=params)
+        data = response.json()
+        root_span = locate_span(data, operation, tag)
+        if root_span:
+            break
+        time.sleep(5)
+
+    if not root_span:
+        pytest.fail("Could not find our operation's span in time")