[PATCH] D56152: [sanitizer_common] Add tests for more *putc and *getc variants

[Michał Górny via Phabricator via llvm-commits]

mgorny updated this revision to Diff 179711.
mgorny retitled this revision from "[sanitizer_common] Add tests for remaining *putc and *getc variants" to "[sanitizer_common] Add tests for more *putc and *getc variants".
mgorny edited the summary of this revision.
mgorny added a comment.

Updated description.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56152/new/

https://reviews.llvm.org/D56152

Files:
  test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc
  test/sanitizer_common/TestCases/Posix/getc_unlocked.cc
  test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc


Index: test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc
===================================================================
--- /dev/null
+++ test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc
@@ -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;
+}
Index: test/sanitizer_common/TestCases/Posix/getc_unlocked.cc
===================================================================
--- /dev/null
+++ test/sanitizer_common/TestCases/Posix/getc_unlocked.cc
@@ -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;
+}
Index: test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc
===================================================================
--- /dev/null
+++ test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc
@@ -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;
+}


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