Starter propagator tests.

Author: pglombardo

tests/test_ot_propagators.py

@@ -0,0 +1,33 @@
+import instana.http_propagator as ihp
+import opentracing as ot
+from instana import tracer, options, util
+from nose.tools import assert_equals
+import inspect
+
+
+def test_basics():
+    inspect.isclass(ihp.HTTPPropagator)
+
+    inject_func = getattr(ihp.HTTPPropagator, "inject", None)
+    assert inject_func
+    assert inspect.ismethod(inject_func)
+
+    extract_func = getattr(ihp.HTTPPropagator, "extract", None)
+    assert extract_func
+    assert inspect.ismethod(extract_func)
+
+
+def test_inject():
+    opts = options.Options()
+    ot.global_tracer = tracer.InstanaTracer(opts)
+
+    carrier = {}
+    span = ot.global_tracer.start_span("nosetests")
+    ot.global_tracer.inject(span.context, ot.Format.HTTP_HEADERS, carrier)
+
+    assert 'X-Instana-T' in carrier
+    assert_equals(carrier['X-Instana-T'], util.id_to_header(span.context.trace_id))
+    assert 'X-Instana-S' in carrier
+    assert_equals(carrier['X-Instana-S'], util.id_to_header(span.context.span_id))
+    assert 'X-Instana-L' in carrier
+    assert_equals(carrier['X-Instana-L'], "1")