From 79d144b8b51b984518af3bb37d627646922f2c44 Mon Sep 17 00:00:00 2001
From: David Gardner <dagardner@nvidia.com>
Date: Wed, 2 Aug 2023 11:02:51 -0700
Subject: [PATCH] Test for issue #360

---
 cpp/mrc/tests/test_pipeline.cpp | 50 +++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/cpp/mrc/tests/test_pipeline.cpp b/cpp/mrc/tests/test_pipeline.cpp
index 196ecfbc4..c0db4308f 100644
--- a/cpp/mrc/tests/test_pipeline.cpp
+++ b/cpp/mrc/tests/test_pipeline.cpp
@@ -36,6 +36,7 @@
 #include <map>
 #include <memory>
 #include <ostream>
+#include <stdexcept>
 #include <string>
 #include <utility>
 #include <vector>
@@ -160,6 +161,55 @@ TEST_F(TestPipeline, TwoSegment)
     LOG(INFO) << "Done" << std::endl;
 }
 
+TEST_F(TestPipeline, InconsistentPipeline)
+{
+    // Test to reproduce issue #360
+    auto pipeline = mrc::make_pipeline();
+
+    auto seg_1 =
+        pipeline->make_segment("seg_1", segment::EgressPorts<float>({"float_port"}), [](segment::IBuilder& seg) {
+            auto rx_source = seg.make_source<float>("rx_source", [](rxcpp::subscriber<float> s) {
+                LOG(INFO) << "emit 1";
+                s.on_next(1.0F);
+                LOG(INFO) << "emit 2";
+                s.on_next(2.0F);
+                LOG(INFO) << "emit 3";
+                s.on_next(3.0F);
+                LOG(INFO) << "issuing complete";
+                s.on_completed();
+            });
+
+            auto my_float_egress = seg.get_egress<float>("float_port");
+
+            seg.make_edge(rx_source, my_float_egress);
+        });
+
+    auto seg_2 =
+        pipeline->make_segment("seg_2", segment::IngressPorts<float>({"float_port"}), [&](segment::IBuilder& seg) {
+            auto my_float_ingress = seg.get_ingress<float>("float_port");
+
+            auto rx_sink = seg.make_sink<float>("rx_sink",
+                                                rxcpp::make_observer_dynamic<float>(
+                                                    [&](float x) {
+                                                        DVLOG(1) << x << std::endl;
+                                                    },
+                                                    [&]() {
+                                                        DVLOG(1) << "Completed" << std::endl;
+                                                    }));
+
+            seg.make_edge(my_float_ingress, rx_sink);
+            throw std::runtime_error("Error in initializer");
+        });
+
+    Executor exec(std::move(m_options));
+
+    exec.register_pipeline(std::move(pipeline));
+
+    exec.start();
+
+    EXPECT_THROW(exec.join(), std::runtime_error);
+}
+
 /*
 TEST_F(TestPipeline, TwoSegmentManualTag)
 {