Index: test/sanitizer_common/TestCases/Posix/popen.cc =================================================================== --- /dev/null +++ test/sanitizer_common/TestCases/Posix/popen.cc @@ -0,0 +1,18 @@ +// RUN: %clangxx -g %s -o %t && %run %t | FileCheck %s +// CHECK: 1 +// CHECK-NEXT: 2 + +#include +#include + +int main(void) { + // use a tool that produces different output than input to verify + // that everything worked correctly + FILE *fp = popen("sort", "w"); + assert(fp); + assert(fputs("2\n", fp) >= 0); + assert(fputs("1\n", fp) >= 0); + assert(pclose(fp) == 0); + + return 0; +}