Fixing wasm issues in CI

Author: FrancescAlted

cmake/RunWasmTest.cmake

@@ -0,0 +1,70 @@
+# CTest driver for tests/wasm/*.c.
+# Mirrors tests/wasm/Makefile:
+#   - compile with wasm32-tcc
+#   - run with Node via run-wasm.mjs
+#   - compare stdout with *.expect
+
+cmake_minimum_required(VERSION 3.20)
+
+foreach(_req TEST_NAME WASM_TCC NODE_EXECUTABLE SOURCE_DIR BINARY_DIR)
+  if(NOT DEFINED ${_req} OR "${${_req}}" STREQUAL "")
+    message(FATAL_ERROR "RunWasmTest.cmake: missing required -D${_req}=...")
+  endif()
+endforeach()
+
+set(_wasm_src "${SOURCE_DIR}/tests/wasm/${TEST_NAME}.c")
+set(_expect_file "${SOURCE_DIR}/tests/wasm/${TEST_NAME}.expect")
+set(_runner "${SOURCE_DIR}/tests/wasm/run-wasm.mjs")
+set(_out_dir "${BINARY_DIR}/tests/wasm/out")
+set(_out_wasm "${_out_dir}/${TEST_NAME}.wasm")
+set(_out_txt "${_out_dir}/${TEST_NAME}.out")
+
+foreach(_path _wasm_src _expect_file _runner)
+  if(NOT EXISTS "${${_path}}")
+    message(FATAL_ERROR "RunWasmTest.cmake: missing input file: ${${_path}}")
+  endif()
+endforeach()
+
+file(MAKE_DIRECTORY "${_out_dir}")
+
+execute_process(
+  COMMAND "${WASM_TCC}" -nostdlib "-B${BINARY_DIR}" "-I${SOURCE_DIR}/include" "${_wasm_src}" -o "${_out_wasm}"
+  RESULT_VARIABLE _cc_rv
+  OUTPUT_VARIABLE _cc_stdout
+  ERROR_VARIABLE _cc_stderr
+)
+if(NOT _cc_rv EQUAL 0)
+  message(FATAL_ERROR
+    "Wasm compile failed for ${TEST_NAME}\n"
+    "compiler: ${WASM_TCC}\n"
+    "stdout:\n${_cc_stdout}\n"
+    "stderr:\n${_cc_stderr}")
+endif()
+
+execute_process(
+  COMMAND "${NODE_EXECUTABLE}" "${_runner}" "${_out_wasm}"
+  RESULT_VARIABLE _node_rv
+  OUTPUT_VARIABLE _node_stdout
+  ERROR_VARIABLE _node_stderr
+)
+if(NOT _node_rv EQUAL 0)
+  message(FATAL_ERROR
+    "Wasm run failed for ${TEST_NAME}\n"
+    "node: ${NODE_EXECUTABLE}\n"
+    "stdout:\n${_node_stdout}\n"
+    "stderr:\n${_node_stderr}")
+endif()
+
+file(WRITE "${_out_txt}" "${_node_stdout}")
+execute_process(
+  COMMAND "${CMAKE_COMMAND}" -E compare_files "${_expect_file}" "${_out_txt}"
+  RESULT_VARIABLE _cmp_rv
+)
+if(NOT _cmp_rv EQUAL 0)
+  file(READ "${_expect_file}" _expect_contents)
+  file(READ "${_out_txt}" _actual_contents)
+  message(FATAL_ERROR
+    "Unexpected wasm test output for ${TEST_NAME}\n"
+    "expected:\n${_expect_contents}\n"
+    "actual:\n${_actual_contents}")
+endif()