From bc74f2b697c59e861f435fb3fb1fc767c9d48f72 Mon Sep 17 00:00:00 2001
From: Daniel Pfeifer <daniel@pfeifer-mail.de>
Date: Mon, 30 Jun 2025 12:27:41 +0200
Subject: [PATCH] Add test that builds public headers

---
 src/CMakeLists.txt                |  1 +
 src/test/CMakeLists.txt           | 18 ++++++++++++++++++
 src/test/secp256k1.c              |  1 +
 src/test/secp256k1_ecdh.c         |  1 +
 src/test/secp256k1_ellswift.c     |  1 +
 src/test/secp256k1_extrakeys.c    |  1 +
 src/test/secp256k1_musig.c        |  1 +
 src/test/secp256k1_preallocated.c |  1 +
 src/test/secp256k1_recovery.c     |  1 +
 src/test/secp256k1_schnorrsig.c   |  1 +
 10 files changed, 27 insertions(+)
 create mode 100644 src/test/CMakeLists.txt
 create mode 100644 src/test/secp256k1.c
 create mode 100644 src/test/secp256k1_ecdh.c
 create mode 100644 src/test/secp256k1_ellswift.c
 create mode 100644 src/test/secp256k1_extrakeys.c
 create mode 100644 src/test/secp256k1_musig.c
 create mode 100644 src/test/secp256k1_preallocated.c
 create mode 100644 src/test/secp256k1_recovery.c
 create mode 100644 src/test/secp256k1_schnorrsig.c

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 8f1d2ee3ba..4028ce008a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -138,6 +138,7 @@ if(SECP256K1_BUILD_TESTS)
     target_link_libraries(tests secp256k1_precomputed secp256k1_asm)
     add_test(NAME secp256k1_tests COMMAND tests)
   endif()
+  add_subdirectory(test)
 endif()
 
 if(SECP256K1_BUILD_EXHAUSTIVE_TESTS)
diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
new file mode 100644
index 0000000000..32facbd580
--- /dev/null
+++ b/src/test/CMakeLists.txt
@@ -0,0 +1,18 @@
+# OBJECT library, because were are not interested in linking this.
+# EXCLUDE_FROM_ALL, because it is explicitly built as a test.
+add_library(secp256k1_build_public_headers OBJECT EXCLUDE_FROM_ALL
+  secp256k1.c
+  secp256k1_ecdh.c
+  secp256k1_ellswift.c
+  secp256k1_extrakeys.c
+  secp256k1_musig.c
+  secp256k1_preallocated.c
+  secp256k1_recovery.c
+  secp256k1_schnorrsig.c
+)
+
+add_test(NAME secp256k1_build_public_headers COMMAND ${CMAKE_COMMAND}
+  --build ${CMAKE_BINARY_DIR}
+  --target secp256k1_build_public_headers
+  --config $<CONFIG>
+)
diff --git a/src/test/secp256k1.c b/src/test/secp256k1.c
new file mode 100644
index 0000000000..f9011bd632
--- /dev/null
+++ b/src/test/secp256k1.c
@@ -0,0 +1 @@
+#include "../../include/secp256k1.h"
diff --git a/src/test/secp256k1_ecdh.c b/src/test/secp256k1_ecdh.c
new file mode 100644
index 0000000000..3a9fbe76a0
--- /dev/null
+++ b/src/test/secp256k1_ecdh.c
@@ -0,0 +1 @@
+#include "../../include/secp256k1_ecdh.h"
diff --git a/src/test/secp256k1_ellswift.c b/src/test/secp256k1_ellswift.c
new file mode 100644
index 0000000000..395a17f353
--- /dev/null
+++ b/src/test/secp256k1_ellswift.c
@@ -0,0 +1 @@
+#include "../../include/secp256k1_ellswift.h"
diff --git a/src/test/secp256k1_extrakeys.c b/src/test/secp256k1_extrakeys.c
new file mode 100644
index 0000000000..32e4b84cb5
--- /dev/null
+++ b/src/test/secp256k1_extrakeys.c
@@ -0,0 +1 @@
+#include "../../include/secp256k1_extrakeys.h"
diff --git a/src/test/secp256k1_musig.c b/src/test/secp256k1_musig.c
new file mode 100644
index 0000000000..71ca8f89f8
--- /dev/null
+++ b/src/test/secp256k1_musig.c
@@ -0,0 +1 @@
+#include "../../include/secp256k1_musig.h"
diff --git a/src/test/secp256k1_preallocated.c b/src/test/secp256k1_preallocated.c
new file mode 100644
index 0000000000..02cb3c2a61
--- /dev/null
+++ b/src/test/secp256k1_preallocated.c
@@ -0,0 +1 @@
+#include "../../include/secp256k1_preallocated.h"
diff --git a/src/test/secp256k1_recovery.c b/src/test/secp256k1_recovery.c
new file mode 100644
index 0000000000..0ffa12f916
--- /dev/null
+++ b/src/test/secp256k1_recovery.c
@@ -0,0 +1 @@
+#include "../../include/secp256k1_recovery.h"
diff --git a/src/test/secp256k1_schnorrsig.c b/src/test/secp256k1_schnorrsig.c
new file mode 100644
index 0000000000..53f25b1169
--- /dev/null
+++ b/src/test/secp256k1_schnorrsig.c
@@ -0,0 +1 @@
+#include "../../include/secp256k1_schnorrsig.h"