github.com/huandu/go@v0.0.0-20151114150818-04e615e41150/misc/cgo/test/helpers.go (about)

     1  // Copyright 2011 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 cgotest
     6  
     7  // const char *greeting = "hello, world";
     8  import "C"
     9  
    10  import (
    11  	"reflect"
    12  	"testing"
    13  	"unsafe"
    14  )
    15  
    16  const greeting = "hello, world"
    17  
    18  type testPair struct {
    19  	Name      string
    20  	Got, Want interface{}
    21  }
    22  
    23  var testPairs = []testPair{
    24  	{"GoString", C.GoString(C.greeting), greeting},
    25  	{"GoStringN", C.GoStringN(C.greeting, 5), greeting[:5]},
    26  	{"GoBytes", C.GoBytes(unsafe.Pointer(C.greeting), 5), []byte(greeting[:5])},
    27  }
    28  
    29  func testHelpers(t *testing.T) {
    30  	for _, pair := range testPairs {
    31  		if !reflect.DeepEqual(pair.Got, pair.Want) {
    32  			t.Errorf("%s: got %#v, want %#v", pair.Name, pair.Got, pair.Want)
    33  		}
    34  	}
    35  }