Cleanup some core tests. NFC. (#23331)

test/core/emscripten_lazy_load_code.cpp → test/core/emscripten_lazy_load_code.c

@@ -9,8 +9,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-extern "C" {
-
 EM_JS(void, log_started, (), {
   out("foo_start");
 })
@@ -33,8 +31,6 @@ void foo_end(int n) {
   if (n > 30000) foo_end(n - 5);
 }
 
-} // extern "C"
-
 int main(int argc, char** argv) {
   int x = atoi(argv[1]);
   foo_start(x);

test/core/test_assert.cpp → test/core/test_assert.c

@@ -5,8 +5,10 @@
  * found in the LICENSE file.
  */
 
+#include <stdbool.h>
 #include <stdio.h>
 #include <assert.h>
+
 int main() {
   assert(1 == true);   // pass
   assert(1 == false);  // fail

test/core/test_em_asm_2.cpp

@@ -6,8 +6,7 @@
 #include <emscripten.h>
 #include <stdio.h>
 
-int main()
-{
+int main() {
   printf("EM_ASM: Simple expression without trailing semicolon\n");
   EM_ASM(out('1. expression without trailing semicolon'));
   EM_ASM("out('2. expression without trailing semicolon')");

test/core/test_emmalloc_memalign_corruption.c

@@ -0,0 +1,17 @@
+#include <emscripten/emmalloc.h>
+#include <stdio.h>
+#include <string.h>
+
+int main() {
+  void *ptr = malloc(20);
+  void *ptr2 = malloc(30);
+  memset(ptr2, 0xFF, 30);
+  free(ptr2);
+  printf("%d %d\n", ptr != 0, emmalloc_validate_memory_regions());
+  ptr2 = memalign(32, 20);
+  printf("%d %d\n", ptr2 != 0, emmalloc_validate_memory_regions());
+  free(ptr2);
+  printf("%d\n", emmalloc_validate_memory_regions());
+  free(ptr);
+  printf("%d\n", emmalloc_validate_memory_regions());
+}

test/core/test_emmalloc_trim.c

@@ -0,0 +1,46 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <emscripten/emmalloc.h>
+#include <emscripten/heap.h>
+
+size_t round_to_4k(size_t val){
+  return (val + 4095) & ~4095;
+}
+
+void print_stats(int cnt) {
+  printf("dynamic heap %d: %zu\n", cnt, round_to_4k(emmalloc_dynamic_heap_size()));
+  printf("free dynamic memory %d: %zu\n", cnt, round_to_4k(emmalloc_free_dynamic_memory()));
+  printf("unclaimed heap memory %d: %zu\n", cnt, round_to_4k(emmalloc_unclaimed_heap_memory()));
+  printf("sbrk %d: %#zx\n", cnt, round_to_4k((size_t)sbrk(0)));
+}
+
+int main() {
+  printf("heap size: %zu\n", emscripten_get_heap_size());
+  print_stats(0);
+
+  void *ptr = malloc(32*1024*1024);
+  void *ptr2 = malloc(4*1024*1024);
+  printf("%d\n", (int)(ptr && ptr2));
+  print_stats(1);
+
+  int success = emmalloc_trim(0);
+  printf("1st trim: %d\n", success);
+  print_stats(1);
+
+  success = emmalloc_trim(0);
+  printf("2nd trim: %d\n", success);
+  print_stats(2);
+  free(ptr2);
+
+  success = emmalloc_trim(100000);
+  printf("3rd trim: %d\n", success);
+  print_stats(3);
+
+  success = emmalloc_trim(100000);
+  printf("4th trim: %d\n", success);
+  print_stats(4);
+
+  success = emmalloc_trim(0);
+  printf("5th trim: %d\n", success);
+  print_stats(5);
+}

test/core/test_emscripten_api.cpp → test/core/test_emscripten_api.c

@@ -8,9 +8,7 @@
 #include <stdio.h>
 #include "emscripten.h"
 
-extern "C" {
 void save_me_aimee() { printf("mann\n"); }
-}
 
 int main() {
   // EMSCRIPTEN_COMMENT("hello from the source");

test/test_core.py

@@ -825,16 +825,16 @@ def test_emmalloc_trim(self):
     self.set_setting('MALLOC', 'emmalloc')
     self.emcc_args += ['-sINITIAL_MEMORY=128MB', '-sALLOW_MEMORY_GROWTH', '-sMAXIMUM_MEMORY=2147418112']
 
-    self.do_core_test('test_emmalloc_trim.cpp')
+    self.do_core_test('test_emmalloc_trim.c')
 
   # Test case against https://github.com/emscripten-core/emscripten/issues/10363
   def test_emmalloc_memalign_corruption(self, *args):
     self.set_setting('MALLOC', 'emmalloc')
-    self.do_core_test('emmalloc_memalign_corruption.cpp')
+    self.do_core_test('test_emmalloc_memalign_corruption.c')
 
   @also_with_standalone_wasm()
   def test_assert(self):
-    self.do_core_test('test_assert.cpp', assert_returncode=NON_ZERO)
+    self.do_core_test('test_assert.c', assert_returncode=NON_ZERO)
 
   @crossplatform
   @also_with_standalone_wasm(impure=True)
@@ -1719,15 +1719,15 @@ def test_set_align(self):
 
   def test_emscripten_api(self):
     self.set_setting('EXPORTED_FUNCTIONS', ['_main', '_save_me_aimee'])
-    self.do_core_test('test_emscripten_api.cpp')
+    self.do_core_test('test_emscripten_api.c')
 
     # Sanitizers are not compatible with LINKABLE (dynamic linking.
     if not is_sanitizing(self.emcc_args) and not self.is_wasm64():
       # test EXPORT_ALL
       self.clear_setting('EXPORTED_FUNCTIONS')
       self.set_setting('EXPORT_ALL')
       self.set_setting('LINKABLE')
-      self.do_core_test('test_emscripten_api.cpp')
+      self.do_core_test('test_emscripten_api.c')
 
   def test_emscripten_run_script_string_int(self):
     src = r'''
@@ -8267,8 +8267,8 @@ def test_pthread_join_and_asyncify(self):
   @no_asan('asyncify stack operations confuse asan')
   @no_wasm2js('TODO: lazy loading in wasm2js')
   @parameterized({
+    '': (False,),
     'conditional': (True,),
-    'unconditional': (False,),
   })
   def test_emscripten_lazy_load_code(self, conditional):
     if self.get_setting('STACK_OVERFLOW_CHECK'):
@@ -8279,7 +8279,7 @@ def test_emscripten_lazy_load_code(self, conditional):
     self.emcc_args += ['--profiling-funcs'] # so that we can find the functions for the changes below
     if conditional:
       self.emcc_args += ['-DCONDITIONAL']
-    self.do_core_test('emscripten_lazy_load_code.cpp', args=['0'])
+    self.do_core_test('emscripten_lazy_load_code.c', args=['0'])
 
     first_size = os.path.getsize('emscripten_lazy_load_code.wasm')
     second_size = os.path.getsize('emscripten_lazy_load_code.wasm.lazy.wasm')