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Mock calls to system functions to facilitate unit testing

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This commit is contained in:
Solomon Hykes
2013-11-20 20:05:10 +00:00
parent 2382a0f920
commit 92f94f06ae
4 changed files with 25 additions and 10 deletions
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graphdriver/devmapper/devmapper_wrapper.go
+4 -4
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@@ -241,19 +241,19 @@ func dmTaskAddTargetFct(task *CDmTask,
func dmGetLoopbackBackingFile(fd uintptr) (uint64, uint64, syscall.Errno) {
var lo64 C.struct_loop_info64
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, C.LOOP_GET_STATUS64,
_, _, err := SyscallSyscall(syscall.SYS_IOCTL, fd, C.LOOP_GET_STATUS64,
uintptr(unsafe.Pointer(&lo64)))
return uint64(lo64.lo_device), uint64(lo64.lo_inode), err
}
func dmLoopbackSetCapacity(fd uintptr) syscall.Errno {
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, C.LOOP_SET_CAPACITY, 0)
_, _, err := SyscallSyscall(syscall.SYS_IOCTL, fd, C.LOOP_SET_CAPACITY, 0)
return err
}
func dmGetBlockSizeFct(fd uintptr) (int64, syscall.Errno) {
var size int64
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, C.BLKGETSIZE64,
_, _, err := SyscallSyscall(syscall.SYS_IOCTL, fd, C.BLKGETSIZE64,
uintptr(unsafe.Pointer(&size)))
return size, err
}
@@ -308,7 +308,7 @@ func dmAttachLoopDeviceFct(filename string, fd *int) string {
}
func getBlockSizeFct(fd uintptr, size *uint64) syscall.Errno {
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, C.BLKGETSIZE64,
_, _, err := SyscallSyscall(syscall.SYS_IOCTL, fd, C.BLKGETSIZE64,
uintptr(unsafe.Pointer(&size)))
return err
}