diff --git a/build.zig b/build.zig
index c3b4020..86d17b8 100644
--- a/build.zig
+++ b/build.zig
@@ -125,9 +125,6 @@ pub fn build(b: *std.Build) void {
         "test/spawn_exit.cpp",
         "test/tests.cpp",
         "test/timeout_test.cpp",
-        "test/unx_c_api.cpp",
-        "test/tcp_c_api.cpp",
-        "test/socket_c_api.cpp",
     }, .flags = &cppflags });
     tests.linkLibrary(lib);
     tests.linkLibrary(asio_dep.artifact("asio"));
diff --git a/test/socket_c_api.cpp b/test/socket_c_api.cpp
deleted file mode 100644
index ecd9570..0000000
--- a/test/socket_c_api.cpp
+++ /dev/null
@@ -1,19 +0,0 @@
-#include "tests.hpp"
-#include <thespian/c/socket.h>
-
-using namespace thespian;
-
-// simple smoke test of socket C API: create + destroy handles
-
-auto socket_c_api(thespian::context &ctx, bool &result, thespian::env_t env)
-    -> thespian::result {
-  (void)ctx;
-  (void)env;
-
-  // socket requires a valid file descriptor; we can't really test much
-  // without one. Just test that the API is accessible (no linking errors).
-  // actual socket operations would need a real FD from a socket/pipe/etc.
-
-  result = true;
-  return ok();
-}
diff --git a/test/tcp_c_api.cpp b/test/tcp_c_api.cpp
deleted file mode 100644
index ad54910..0000000
--- a/test/tcp_c_api.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-#include "tests.hpp"
-#include <netinet/in.h>
-#include <thespian/c/tcp.h>
-
-using namespace thespian;
-
-// simple smoke test of tcp C API: create + destroy handles and listen on any
-// port
-
-auto tcp_c_api(thespian::context &ctx, bool &result, thespian::env_t env)
-    -> thespian::result {
-  (void)ctx;
-  (void)env;
-
-  struct thespian_tcp_acceptor_handle *a = thespian_tcp_acceptor_create("tag");
-  if (a != nullptr) {
-    uint16_t port = thespian_tcp_acceptor_listen(a, in6addr_any, 0);
-    // port may be zero if something went wrong; ignore for smoke.
-    (void)port;
-    thespian_tcp_acceptor_close(a);
-    thespian_tcp_acceptor_destroy(a);
-  }
-
-  struct thespian_tcp_connector_handle *c =
-      thespian_tcp_connector_create("tag");
-  if (c != nullptr) {
-    // don't attempt to connect, simply exercise create/destroy
-    thespian_tcp_connector_destroy(c);
-  }
-
-  result = true;
-  return ok();
-}
diff --git a/test/tests.cpp b/test/tests.cpp
index 6b93cfc..aba9ea0 100644
--- a/test/tests.cpp
+++ b/test/tests.cpp
@@ -111,9 +111,6 @@ extern "C" auto runtestcase(const char *name) -> int {
   tests["perf_spawn"] = perf_spawn;
   tests["spawn_exit"] = spawn_exit;
   tests["timeout_test"] = timeout_test;
-  tests["unx_c_api"] = unx_c_api;
-  tests["tcp_c_api"] = tcp_c_api;
-  tests["socket_c_api"] = socket_c_api;
 
   env_t env{};
   env_t log_env{};
diff --git a/test/tests.hpp b/test/tests.hpp
index 8e8128d..4cf3e4b 100644
--- a/test/tests.hpp
+++ b/test/tests.hpp
@@ -27,6 +27,3 @@ testcase perf_ring;
 testcase perf_spawn;
 testcase spawn_exit;
 testcase timeout_test;
-testcase unx_c_api;
-testcase tcp_c_api;
-testcase socket_c_api;
diff --git a/test/tests_cpp.zig b/test/tests_cpp.zig
index 8b24081..7c17268 100644
--- a/test/tests_cpp.zig
+++ b/test/tests_cpp.zig
@@ -67,12 +67,3 @@ test "timeout_test" {
     try testcase("timeout_test");
 }
 
-test "unx_c_api" {
-    try testcase("unx_c_api");
-}
-test "tcp_c_api" {
-    try testcase("tcp_c_api");
-}
-test "socket_c_api" {
-    try testcase("socket_c_api");
-}
diff --git a/test/unx_c_api.cpp b/test/unx_c_api.cpp
deleted file mode 100644
index 093ddad..0000000
--- a/test/unx_c_api.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-#include "tests.hpp"
-#include <thespian/c/unx.h>
-
-using namespace thespian;
-
-// Very small smoke test for the new C API.  We don't actually open sockets,
-// just verify that the create/destroy functions work and return non-null.
-
-auto unx_c_api(thespian::context &ctx, bool &result, thespian::env_t env)
-    -> thespian::result {
-  (void)ctx;
-  (void)env;
-
-  struct thespian_unx_acceptor_handle *a = thespian_unx_acceptor_create("tag");
-  if (a != nullptr) {
-    thespian_unx_acceptor_destroy(a);
-  }
-
-  struct thespian_unx_connector_handle *c =
-      thespian_unx_connector_create("tag");
-  if (c != nullptr) {
-    thespian_unx_connector_destroy(c);
-  }
-
-  result = true;
-  return ok();
-}