[compiler-rt] r350229 - [sanitizer_common] Add tests for more *putc and *getc variants

[Michal Gorny via llvm-commits]

Author: mgorny
Date: Wed Jan  2 09:36:55 2019
New Revision: 350229

URL: http://llvm.org/viewvc/llvm-project?rev=350229&view=rev
Log:
[sanitizer_common] Add tests for more *putc and *getc variants

Add tests for the more character-oriented functions, that is:
- fputc(), putc() and putchar()
- getc_unlocked()
- putc_unlocked() and putchar_unlocked()

Differential Revision: https://reviews.llvm.org/D56152

Added:
    compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc
    compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/getc_unlocked.cc
    compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc

Added: compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc?rev=350229&view=auto
==============================================================================
--- compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc (added)
+++ compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc Wed Jan  2 09:36:55 2019
@@ -0,0 +1,13 @@
+// RUN: %clangxx -g %s -o %t && %run %t | FileCheck %s
+// CHECK: abc
+
+#include <assert.h>
+#include <stdio.h>
+
+int main(void) {
+  assert(fputc('a', stdout) != EOF);
+  assert(putc('b', stdout) != EOF);
+  assert(putchar('c') != EOF);
+
+  return 0;
+}

Added: compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/getc_unlocked.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/getc_unlocked.cc?rev=350229&view=auto
==============================================================================
--- compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/getc_unlocked.cc (added)
+++ compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/getc_unlocked.cc Wed Jan  2 09:36:55 2019
@@ -0,0 +1,20 @@
+// RUN: %clangxx -g %s -o %t && %run %t
+
+#include <assert.h>
+#include <stdio.h>
+
+int main(int argc, char **argv) {
+  FILE *fp = fopen(argv[0], "r");
+  assert(fp);
+
+  // the file should be at least one character long, always
+  assert(getc_unlocked(fp) != EOF);
+  // POSIX guarantees being able to ungetc() at least one character
+  // NB: ungetc_unlocked is apparently not present
+  assert(ungetc('X', fp) != EOF);
+  // check whether ungetc() works with getc_unlocked()
+  assert(getc_unlocked(fp) == 'X');
+
+  assert(!fclose(fp));
+  return 0;
+}

Added: compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc?rev=350229&view=auto
==============================================================================
--- compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc (added)
+++ compiler-rt/trunk/test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc Wed Jan  2 09:36:55 2019
@@ -0,0 +1,12 @@
+// RUN: %clangxx -g %s -o %t && %run %t | FileCheck %s
+// CHECK: bc
+
+#include <assert.h>
+#include <stdio.h>
+
+int main(void) {
+  assert(putc_unlocked('b', stdout) != EOF);
+  assert(putchar_unlocked('c') != EOF);
+
+  return 0;
+}