Ad-hoc test for reproducing bug 671969, commented out.

native/src/test/test_api.cpp

@@ -2785,6 +2785,57 @@ test_bat_sd_zfp()
   do_testbat<float, 64, true>(cad.name());
 }
 
+#if 0 // Only for ad-hoc debugging
+
+namespace {
+SeismicStoreIOContext getContext()
+{
+  using InternalZGY::Environment;
+  return SeismicStoreIOContext()
+    .sdurl(Environment::getStringEnv("OPENZGY_SDURL"))
+    .sdapikey(Environment::getStringEnv("OPENZGY_SDAPIKEY"))
+    .sdtoken(Environment::getStringEnv("OPENZGY_TOKEN") != "" ?
+             Environment::getStringEnv("OPENZGY_TOKEN") :
+             "FILE:carbon.slbapp.com", "");
+}
+}
+
+/**
+ * Not usable as an automated test.
+ * Partly because it takes two hours to run, waiting for the access
+ * token to expire, and partly because somebody needs to check by hand
+ * that garbage data was not output to the console.
+ */
+static void test_bug_671969()
+{
+  auto ctxt = getContext();
+  std::shared_ptr<OpenZGY::IZgyReader> reader =
+    OpenZGY::IZgyReader::open("sd://sntc/testdata/Synt2.zgy", &ctxt);
+  const std::array<std::int64_t,3> orig{0,0,0};
+  const std::array<std::int64_t,3> more{64,192,64};
+  const std::array<std::int64_t,3> size{64,64,64};
+  std::unique_ptr<float[]>buf(new float[64*64*64]);
+  try {
+    std::cerr << "1st read" << std::endl;
+    reader->read(orig, size, buf.get(), 0);
+    for (int ii=10; ii>0; --ii) {
+      std::cerr << ii << "... " << std::flush;
+      std::this_thread::sleep_for (std::chrono::minutes(12));
+    }
+    std::cerr << "0!" << std::endl;
+    std::cerr << "2nd read" << std::endl;
+    reader->read(more, size, buf.get(), 0);
+    std::cerr << "close" << std::endl;
+    reader->close();
+    std::cerr << "done" << std::endl;
+  }
+  catch(const std::exception& ex) {
+    std::cerr << "Exception: " << ex.what() << std::endl;
+  }
+}
+
+#endif // Ad-hoc debugging
+
 #endif
 
 class Register
@@ -2863,6 +2914,9 @@ public:
     register_sd_test("api.bat_sd_2",            test_bat_sd_2);
     register_sd_test("api.bat_sd_4",            test_bat_sd_4);
     register_sd_test("api.bat_sd_zfp",          test_bat_sd_zfp);
+#if 0 // Not usable as an automated test
+    register_sd_test("bug.671969",              test_bug_671969);
+#endif
 #endif
   }
 } dummy;