Fix test_prepost_run_dep after emscripten-core#24890 (emscripten-core#24898)

- Cleanup the test
- Add and `id` to the `addRunDependency` call.
- Add `.unref` to prevent the dependency watcher from keeping the node
process alive. Prior to emscripten-core#24890 the lack of `id` in used in the test
caused it to skip the dependency watcher.
- Add `--closure=1` to make sure closure doesn't minify the `.unref`
call.
- Add some RUNTIME_DEBUG logging to add/removeRunDependency.

Author: sbc100

src/preamble.js

@@ -251,6 +251,9 @@ function addRunDependency(id) {
 #endif
 
 #if ASSERTIONS
+#if RUNTIME_DEBUG
+  dbg('addRunDependency', id);
+#endif
   assert(id, 'addRunDependency requires an ID')
   assert(!runDependencyTracking[id]);
   runDependencyTracking[id] = 1;
@@ -274,6 +277,11 @@ function addRunDependency(id) {
         err('(end of list)');
       }
     }, 10000);
+#if ENVIRONMENT_MAY_BE_NODE
+    // Prevent this timer from keeping the runtime alive if nothing
+    // else is.
+    runDependencyWatcher.unref?.()
+#endif
   }
 #endif
 }
@@ -286,6 +294,9 @@ function removeRunDependency(id) {
 #endif
 
 #if ASSERTIONS
+#if RUNTIME_DEBUG
+  dbg('removeRunDependency', id);
+#endif
   assert(id, 'removeRunDependency requires an ID');
   assert(runDependencyTracking[id]);
   delete runDependencyTracking[id];

test/code_size/test_codesize_hello_O0.json

@@ -1,10 +1,10 @@
 {
-  "a.out.js": 22449,
-  "a.out.js.gz": 8326,
+  "a.out.js": 22462,
+  "a.out.js.gz": 8336,
   "a.out.nodebug.wasm": 15143,
   "a.out.nodebug.wasm.gz": 7452,
-  "total": 37592,
-  "total_gz": 15778,
+  "total": 37605,
+  "total_gz": 15788,
   "sent": [
     "fd_write"
   ],

test/code_size/test_codesize_minimal_O0.json

@@ -1,10 +1,10 @@
 {
-  "a.out.js": 17710,
-  "a.out.js.gz": 6612,
+  "a.out.js": 17723,
+  "a.out.js.gz": 6621,
   "a.out.nodebug.wasm": 1136,
   "a.out.nodebug.wasm.gz": 659,
-  "total": 18846,
-  "total_gz": 7271,
+  "total": 18859,
+  "total_gz": 7280,
   "sent": [],
   "imports": [],
   "exports": [

test/code_size/test_unoptimized_code_size.json

@@ -1,16 +1,16 @@
 {
-  "hello_world.js": 53804,
-  "hello_world.js.gz": 17065,
+  "hello_world.js": 53923,
+  "hello_world.js.gz": 17123,
   "hello_world.wasm": 15143,
   "hello_world.wasm.gz": 7452,
   "no_asserts.js": 26714,
   "no_asserts.js.gz": 8952,
   "no_asserts.wasm": 12227,
   "no_asserts.wasm.gz": 6008,
-  "strict.js": 51854,
-  "strict.js.gz": 16403,
+  "strict.js": 51973,
+  "strict.js.gz": 16455,
   "strict.wasm": 15143,
   "strict.wasm.gz": 7438,
-  "total": 174885,
-  "total_gz": 63318
+  "total": 175123,
+  "total_gz": 63428
 }

test/other/codesize/test_codesize_minimal_O0.expected.js

@@ -531,6 +531,9 @@ function addRunDependency(id) {
         err('(end of list)');
       }
     }, 10000);
+    // Prevent this timer from keeping the runtime alive if nothing
+    // else is.
+    runDependencyWatcher.unref?.()
   }
 }
 

test/test_other.py

@@ -2850,21 +2850,19 @@ def test_get_proc_address_error_message(self):
   })
   def test_prepost(self, no_initial_run, run_dep):
     create_file('pre.js', '''
-      var Module = {
-        preRun: () => out('pre-run'),
-        postRun: () => out('post-run')
+      Module = {
+        "preRun": () => out('pre-run'),
+        "postRun": () => out('post-run')
       };
       ''')
 
-    self.run_process([EMCC, test_file('hello_world.c'), '--pre-js', 'pre.js', '-sWASM_ASYNC_COMPILATION=0'])
-    self.assertContained('pre-run\nhello, world!\npost-run\n', self.run_js('a.out.js'))
+    self.do_runf('hello_world.c', 'pre-run\nhello, world!\npost-run\n', cflags=['--pre-js', 'pre.js', '-sWASM_ASYNC_COMPILATION=0'])
 
     # addRunDependency during preRun should prevent main, and post-run from
     # running.
     with open('pre.js', 'a') as f:
-      f.write('Module.preRun = () => { out("add-dep"); addRunDependency(); }\n')
-    self.run_process([EMCC, test_file('hello_world.c'), '--pre-js', 'pre.js', '-sWASM_ASYNC_COMPILATION=0'])
-    output = self.run_js('a.out.js')
+      f.write('Module["preRun"] = () => { out("add-dep"); addRunDependency("dep"); }\n')
+    output = self.do_runf('hello_world.c', cflags=['--pre-js', 'pre.js', '-sRUNTIME_DEBUG', '-sWASM_ASYNC_COMPILATION=0', '-O2', '--closure=1'])
     self.assertContained('add-dep\n', output)
     self.assertNotContained('hello, world!\n', output)
     self.assertNotContained('post-run\n', output)
@@ -2874,21 +2872,20 @@ def test_prepost(self, no_initial_run, run_dep):
     if no_initial_run:
       args += ['-sINVOKE_RUN=0']
     if run_dep:
-      create_file('pre.js', 'Module.preRun = () => addRunDependency("test");')
+      create_file('pre.js', 'Module["preRun"] = () => addRunDependency("test");')
       create_file('post.js', 'removeRunDependency("test");')
       args += ['--pre-js', 'pre.js', '--post-js', 'post.js']
 
-    self.run_process([EMCC, test_file('hello_world.c')] + args)
-    output = self.run_js('a.out.js')
+    output = self.do_runf('hello_world.c', cflags=args)
     self.assertContainedIf('hello, world!', output, not no_initial_run)
 
     if no_initial_run:
       # Calling main later should still work, filesystem etc. must be set up.
       print('call main later')
-      src = read_file('a.out.js')
+      src = read_file('hello_world.js')
       src += '\nout("callMain -> " + Module.callMain());\n'
-      create_file('a.out.js', src)
-      self.assertContained('hello, world!\ncallMain -> 0\n', self.run_js('a.out.js'))
+      create_file('hello_world.js', src)
+      self.assertContained('hello, world!\ncallMain -> 0\n', self.run_js('hello_world.js'))
 
   def test_prepost2(self):
     create_file('pre.js', 'Module.preRun = () => out("pre-run");')