Merge "Fix bugs in power HAL VTS test"

#include <cutils/properties.h>

#include <android-base/unique_fd.h>

#include <android/hardware/power/1.0/IPower.h>

#include <gtest/gtest.h>

using ::android::hardware::hidl_vec;

using ::android::hardware::Return;

using ::android::sp;

using ::android::base::unique_fd;

using std::vector;

TEST_F(PowerHidlTest, TryDifferentGovernors) {

  Return<void> ret;

  int fd1 = open(CPU_GOVERNOR_PATH, O_RDWR);

  int fd2 = open(AVAILABLE_GOVERNORS_PATH, O_RDONLY);

  unique_fd fd1(open(CPU_GOVERNOR_PATH, O_RDWR));

  unique_fd fd2(open(AVAILABLE_GOVERNORS_PATH, O_RDONLY));

  if (fd1 < 0 || fd2 < 0) {

    // Files don't exist, so skip the rest of the test case

    SUCCEED();

  ASSERT_LE(0, read(fd1, old_governor, 80));

  char governors[1024];

  ASSERT_LE(0, read(fd2, governors, 1024));

  close(fd2);

  unsigned len = read(fd2, governors, 1024);

  ASSERT_LE(0, len);

  governors[len] = '\0';

  char *saveptr;

  char *name = strtok_r(governors, " ", &saveptr);

  while (name && strlen(name) > 1) {

  char *name = strtok_r(governors, " \n", &saveptr);

  while (name) {

    ASSERT_LE(0, write(fd1, name, strlen(name)));

    ret = power->setInteractive(true);

    ASSERT_TRUE(ret.isOk());

    power->powerHint(PowerHint::LAUNCH, 1);

    power->powerHint(PowerHint::LAUNCH, 0);

    name = strtok_r(NULL, " ", &saveptr);

    name = strtok_r(NULL, " \n", &saveptr);

  }

  ASSERT_LE(0, write(fd1, old_governor, strlen(old_governor)));

  close(fd1);

}

// Sanity check Power::powerHint on good and bad inputs.