github.com/rafaeltorres324/go/src@v0.0.0-20210519164414-9fdf653a9838/syscall/syscall_windows_test.go (about)

     1  // Copyright 2012 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package syscall_test
     6  
     7  import (
     8  	"os"
     9  	"path/filepath"
    10  	"syscall"
    11  	"testing"
    12  )
    13  
    14  func TestWin32finddata(t *testing.T) {
    15  	dir, err := os.MkdirTemp("", "go-build")
    16  	if err != nil {
    17  		t.Fatalf("failed to create temp directory: %v", err)
    18  	}
    19  	defer os.RemoveAll(dir)
    20  
    21  	path := filepath.Join(dir, "long_name.and_extension")
    22  	f, err := os.Create(path)
    23  	if err != nil {
    24  		t.Fatalf("failed to create %v: %v", path, err)
    25  	}
    26  	f.Close()
    27  
    28  	type X struct {
    29  		fd  syscall.Win32finddata
    30  		got byte
    31  		pad [10]byte // to protect ourselves
    32  
    33  	}
    34  	var want byte = 2 // it is unlikely to have this character in the filename
    35  	x := X{got: want}
    36  
    37  	pathp, _ := syscall.UTF16PtrFromString(path)
    38  	h, err := syscall.FindFirstFile(pathp, &(x.fd))
    39  	if err != nil {
    40  		t.Fatalf("FindFirstFile failed: %v", err)
    41  	}
    42  	err = syscall.FindClose(h)
    43  	if err != nil {
    44  		t.Fatalf("FindClose failed: %v", err)
    45  	}
    46  
    47  	if x.got != want {
    48  		t.Fatalf("memory corruption: want=%d got=%d", want, x.got)
    49  	}
    50  }
    51  
    52  func abort(funcname string, err error) {
    53  	panic(funcname + " failed: " + err.Error())
    54  }
    55  
    56  func ExampleLoadLibrary() {
    57  	h, err := syscall.LoadLibrary("kernel32.dll")
    58  	if err != nil {
    59  		abort("LoadLibrary", err)
    60  	}
    61  	defer syscall.FreeLibrary(h)
    62  	proc, err := syscall.GetProcAddress(h, "GetVersion")
    63  	if err != nil {
    64  		abort("GetProcAddress", err)
    65  	}
    66  	r, _, _ := syscall.Syscall(uintptr(proc), 0, 0, 0, 0)
    67  	major := byte(r)
    68  	minor := uint8(r >> 8)
    69  	build := uint16(r >> 16)
    70  	print("windows version ", major, ".", minor, " (Build ", build, ")\n")
    71  }
    72  
    73  func TestTOKEN_ALL_ACCESS(t *testing.T) {
    74  	if syscall.TOKEN_ALL_ACCESS != 0xF01FF {
    75  		t.Errorf("TOKEN_ALL_ACCESS = %x, want 0xF01FF", syscall.TOKEN_ALL_ACCESS)
    76  	}
    77  }