libc/test/src/termios/termios_test.cpp

   1 //===-- Unittests for a bunch of functions in termios.h -------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "src/errno/libc_errno.h"
  10 #include "src/fcntl/open.h"
  11 #include "src/termios/cfgetispeed.h"
  12 #include "src/termios/cfgetospeed.h"
  13 #include "src/termios/cfsetispeed.h"
  14 #include "src/termios/cfsetospeed.h"
  15 #include "src/termios/tcgetattr.h"
  16 #include "src/termios/tcgetsid.h"
  17 #include "src/termios/tcsetattr.h"
  18 #include "src/unistd/close.h"
  19 #include "test/UnitTest/ErrnoSetterMatcher.h"
  20 #include "test/UnitTest/Test.h"
  21
  22 #include <termios.h>
  23
  24 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
  25 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
  26
  27 // We just list a bunch of smoke tests here as it is not possible to
  28 // test functionality at the least because we want to run the tests
  29 // from ninja/make which change the terminal behavior.
  30
  31 TEST(LlvmLibcTermiosTest, SpeedSmokeTest) {
  32   struct termios t;
  33   LIBC_NAMESPACE::libc_errno = 0;
  34   ASSERT_THAT(LIBC_NAMESPACE::cfsetispeed(&t, B50), Succeeds(0));
  35   ASSERT_EQ(LIBC_NAMESPACE::cfgetispeed(&t), speed_t(B50));
  36   ASSERT_THAT(LIBC_NAMESPACE::cfsetospeed(&t, B75), Succeeds(0));
  37   ASSERT_EQ(LIBC_NAMESPACE::cfgetospeed(&t), speed_t(B75));
  38
  39   LIBC_NAMESPACE::libc_errno = 0;
  40   ASSERT_THAT(LIBC_NAMESPACE::cfsetispeed(&t, ~CBAUD), Fails(EINVAL));
  41   LIBC_NAMESPACE::libc_errno = 0;
  42   ASSERT_THAT(LIBC_NAMESPACE::cfsetospeed(&t, ~CBAUD), Fails(EINVAL));
  43 }
  44
  45 TEST(LlvmLibcTermiosTest, GetAttrSmokeTest) {
  46   struct termios t;
  47   LIBC_NAMESPACE::libc_errno = 0;
  48   int fd = LIBC_NAMESPACE::open("/dev/tty", O_RDONLY);
  49   if (fd < 0)
  50     return; // When /dev/tty is not available, no point continuing.
  51   ASSERT_ERRNO_SUCCESS();
  52   ASSERT_THAT(LIBC_NAMESPACE::tcgetattr(fd, &t), Succeeds(0));
  53   ASSERT_EQ(LIBC_NAMESPACE::close(fd), 0);
  54 }
  55
  56 TEST(LlvmLibcTermiosTest, TcGetSidSmokeTest) {
  57   LIBC_NAMESPACE::libc_errno = 0;
  58   int fd = LIBC_NAMESPACE::open("/dev/tty", O_RDONLY);
  59   if (fd < 0)
  60     return; // When /dev/tty is not available, no point continuing.
  61   ASSERT_ERRNO_SUCCESS();
  62   ASSERT_GT(LIBC_NAMESPACE::tcgetsid(fd), pid_t(0));
  63   ASSERT_EQ(LIBC_NAMESPACE::close(fd), 0);
  64 }