wa-lang.org/wazero@v1.0.2/imports/proxywasm/internal/_hostcall_utils_test.go (about)

     1  // Copyright 2021 Tetrate
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package internal
    16  
    17  import (
    18  	"reflect"
    19  	"testing"
    20  	"unsafe"
    21  
    22  	"github.com/stretchr/testify/require"
    23  )
    24  
    25  func Test_StringBytePtr(t *testing.T) {
    26  	exp := "abcd"
    27  	ptr := StringBytePtr(exp)
    28  
    29  	//nolint
    30  	actual := *(*string)(unsafe.Pointer(&reflect.SliceHeader{
    31  		Data: uintptr(unsafe.Pointer(ptr)),
    32  		Len:  len(exp),
    33  		Cap:  len(exp),
    34  	}))
    35  	require.Equal(t, exp, actual)
    36  }