[test] Cleanup test_files. NFC (#22036)

test/test_core.py

@@ -5423,11 +5423,7 @@ def test_files(self):
 
     create_file('test.file', 'some data')
 
-    def clean(out):
-      return '\n'.join([line for line in out.split('\n') if 'binaryen' not in line and 'wasm' not in line and 'so not running' not in line])
-
-    self.do_runf('files.cpp', ('size: 7\ndata: 100,-56,50,25,10,77,123\nloop: 100 -56 50 25 10 77 123 \ninput:hi there!\ntexto\n$\n5 : 10,30,20,11,88\nother=some data.\nseeked=me da.\nseeked=ata.\nseeked=ta.\nfscanfed: 10 - hello\n5 bytes to dev/null: 5\nok.\ntexte\n', 'size: 7\ndata: 100,-56,50,25,10,77,123\nloop: 100 -56 50 25 10 77 123 \ninput:hi there!\ntexto\ntexte\n$\n5 : 10,30,20,11,88\nother=some data.\nseeked=me da.\nseeked=ata.\nseeked=ta.\nfscanfed: 10 - hello\n5 bytes to dev/null: 5\nok.\n'),
-                 output_nicerizer=clean)
+    self.do_run_in_out_file_test('test_files.c')
 
   def test_files_m(self):
     # Test for Module.stdin etc.

test/files.cpp → test/test_files.c

@@ -11,10 +11,8 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
-int main()
-{
-  // Reading
-
+// Reading
+void test_reading() {
   FILE *file = fopen("somefile.binary", "rb");
   assert(file);
 
@@ -38,28 +36,29 @@ int main()
   free(buffer);
 
   // Do it again, with a loop on feof
-
   printf("loop: ");
   file = fopen("somefile.binary", "rb");
   assert(file);
   while (!feof(file)) {
     char c = fgetc(file);
     if (c != EOF) printf("%d ", c);
   }
-  fclose (file);
+  fclose(file);
   printf("\n");
+}
 
-  // Standard streams
-
+// Standard streams
+void test_stdstreams() {
   char gets_buffer[1024];
-  printf("input:%s\n", gets(gets_buffer));
+  printf("input:%s\n", fgets(gets_buffer, 1024, stdin));
   fwrite("texto\n", 1, 6, stdout);
   fwrite("texte\n", 1, 6, stderr);
   putchar('$');
   putc('\n', stdout);
+}
 
-  // Writing
-
+// Writing
+void test_writing() {
   char data[5] = { 10, 30, 20, 11, 88 };
   FILE *outf = fopen("go.out", "wb");
   fwrite(data, 1, 5, outf);
@@ -73,14 +72,16 @@ int main()
   int num = fread(data2, 1, 10, inf);
   fclose(inf);
   printf("%d : %d,%d,%d,%d,%d\n", num, data2[0], data2[1], data2[2], data2[3], data2[4]);
+}
 
+void test_seeking() {
   // Test reading a file that has not been cached
-  
+
   FILE *other = fopen("test.file", "r");
   assert(other);
 
   char otherData[1000];
-  num = fread(otherData, 1, 9, other);
+  int num = fread(otherData, 1, 9, other);
   otherData[num] = 0;
   printf("other=%s.\n", otherData);
 
@@ -102,21 +103,24 @@ int main()
   printf("seeked=%s.\n", otherData);
 
   fclose(other);
+}
 
-  // fscanf
-
-  outf = fopen("fscan.f", "w");
+// fscanf
+void test_fscanf() {
+  FILE* outf = fopen("fscan.f", "w");
   fprintf(outf, "10 hello");
   fclose(outf);
 
   int number;
   char text[100];
-  inf = fopen("fscan.f", "r");
-  num = fscanf(inf, "%d %s", &number, text);
+  FILE* inf = fopen("fscan.f", "r");
+  int num = fscanf(inf, "%d %s", &number, text);
   fclose(inf);
   printf("fscanfed: %d - %s\n", number, text);
+}
 
-  // temp files
+// temp files
+void test_tempfiles() {
   const char *tname = "file_XXXXXX";
   char tname1[100];
   char tname2[100];
@@ -142,20 +146,28 @@ int main()
     assert(strncmp("/tmp/", str, 5) == 0);
   }
 
+  char data[5] = { 10, 30, 20, 11, 88 };
   FILE *n = fopen("/dev/null", "w");
   printf("5 bytes to dev/null: %zu\n", fwrite(data, 1, 5, n));
   fclose(n);
-  
+
   // Test file creation with O_TRUNC (regression test for #16784)
   const char *file_name = "test.out";
   int fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR);
   assert(fd >= 0);
   int status = write(fd, "blablabla\n", 10);
   assert(status == 10);
   close(fd);
+}
 
+int main() {
+  test_reading();
+  test_stdstreams();
+  test_writing();
+  test_seeking();
+  test_fscanf();
+  test_tempfiles();
   printf("ok.\n");
-
   return 0;
 }
 

test/test_files.out

@@ -0,0 +1,15 @@
+size: 7
+data: 100,-56,50,25,10,77,123
+loop: 100 -56 50 25 10 77 123 
+input:hi there!
+texto
+texte
+$
+5 : 10,30,20,11,88
+other=some data.
+seeked=me da.
+seeked=ata.
+seeked=ta.
+fscanfed: 10 - hello
+5 bytes to dev/null: 5
+ok.