140 lines
3.1 KiB
Go
140 lines
3.1 KiB
Go
package binary
|
|
|
|
import (
|
|
"bytes"
|
|
"strconv"
|
|
"testing"
|
|
|
|
"github.com/tetratelabs/wazero/api"
|
|
"github.com/tetratelabs/wazero/internal/testing/require"
|
|
"github.com/tetratelabs/wazero/internal/wasm"
|
|
)
|
|
|
|
func Test_decodeDataSegment(t *testing.T) {
|
|
tests := []struct {
|
|
in []byte
|
|
exp wasm.DataSegment
|
|
features api.CoreFeatures
|
|
expErr string
|
|
}{
|
|
{
|
|
in: []byte{
|
|
0xf,
|
|
// Const expression.
|
|
wasm.OpcodeI32Const, 0x1, wasm.OpcodeEnd,
|
|
// Two initial data.
|
|
0x2, 0xf, 0xf,
|
|
},
|
|
features: api.CoreFeatureBulkMemoryOperations,
|
|
expErr: "invalid data segment prefix: 0xf",
|
|
},
|
|
{
|
|
in: []byte{
|
|
0x0,
|
|
// Const expression.
|
|
wasm.OpcodeI32Const, 0x1, wasm.OpcodeEnd,
|
|
// Two initial data.
|
|
0x2, 0xf, 0xf,
|
|
},
|
|
exp: wasm.DataSegment{
|
|
OffsetExpression: wasm.ConstantExpression{
|
|
Opcode: wasm.OpcodeI32Const,
|
|
Data: []byte{0x1},
|
|
},
|
|
Init: []byte{0xf, 0xf},
|
|
},
|
|
features: api.CoreFeatureBulkMemoryOperations,
|
|
},
|
|
{
|
|
in: []byte{
|
|
0x0,
|
|
// Const expression.
|
|
wasm.OpcodeI32Const, 0x1,
|
|
0x2, 0xf, 0xf,
|
|
},
|
|
expErr: "read offset expression: constant expression has been not terminated",
|
|
features: api.CoreFeatureBulkMemoryOperations,
|
|
},
|
|
{
|
|
in: []byte{
|
|
0x1, // Passive data segment without memory index and const expr.
|
|
// Two initial data.
|
|
0x2, 0xf, 0xf,
|
|
},
|
|
exp: wasm.DataSegment{
|
|
Passive: true,
|
|
Init: []byte{0xf, 0xf},
|
|
},
|
|
features: api.CoreFeatureBulkMemoryOperations,
|
|
},
|
|
{
|
|
in: []byte{
|
|
0x2,
|
|
0x0, // Memory index.
|
|
// Const expression.
|
|
wasm.OpcodeI32Const, 0x1, wasm.OpcodeEnd,
|
|
// Two initial data.
|
|
0x2, 0xf, 0xf,
|
|
},
|
|
exp: wasm.DataSegment{
|
|
OffsetExpression: wasm.ConstantExpression{
|
|
Opcode: wasm.OpcodeI32Const,
|
|
Data: []byte{0x1},
|
|
},
|
|
Init: []byte{0xf, 0xf},
|
|
},
|
|
features: api.CoreFeatureBulkMemoryOperations,
|
|
},
|
|
{
|
|
in: []byte{
|
|
0x2,
|
|
0x1, // Memory index.
|
|
// Const expression.
|
|
wasm.OpcodeI32Const, 0x1, wasm.OpcodeEnd,
|
|
// Two initial data.
|
|
0x2, 0xf, 0xf,
|
|
},
|
|
expErr: "memory index must be zero but was 1",
|
|
features: api.CoreFeatureBulkMemoryOperations,
|
|
},
|
|
{
|
|
in: []byte{
|
|
0x2,
|
|
0x0, // Memory index.
|
|
// Const expression.
|
|
wasm.OpcodeI32Const, 0x1,
|
|
// Two initial data.
|
|
0x2, 0xf, 0xf,
|
|
},
|
|
expErr: "read offset expression: constant expression has been not terminated",
|
|
features: api.CoreFeatureBulkMemoryOperations,
|
|
},
|
|
{
|
|
in: []byte{
|
|
0x2,
|
|
0x0, // Memory index.
|
|
// Const expression.
|
|
wasm.OpcodeI32Const, 0x1, wasm.OpcodeEnd,
|
|
// Two initial data.
|
|
0x2, 0xf, 0xf,
|
|
},
|
|
features: api.CoreFeatureMutableGlobal,
|
|
expErr: "non-zero prefix for data segment is invalid as feature \"bulk-memory-operations\" is disabled",
|
|
},
|
|
}
|
|
|
|
for i, tt := range tests {
|
|
tc := tt
|
|
t.Run(strconv.Itoa(i), func(t *testing.T) {
|
|
var actual wasm.DataSegment
|
|
err := decodeDataSegment(bytes.NewReader(tc.in), tc.features, &actual)
|
|
if tc.expErr == "" {
|
|
require.NoError(t, err)
|
|
require.Equal(t, tc.exp, actual)
|
|
} else {
|
|
require.EqualError(t, err, tc.expErr)
|
|
}
|
|
})
|
|
}
|
|
}
|