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value_test.go
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/
value_test.go
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package dataparse
import (
"encoding/binary"
"fmt"
"math"
"net"
"testing"
fuzz "github.com/google/gofuzz"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// Fuzz implements the interface exepcted by gofuzz to fuzz itself.
//
// Using testing-native fuzzing only allows base types to be fuzzed and
// can only be used by either writing or generating the relevant tests
// with explicit types.
//
// fuzz on the other hand doesn't handle any/interface types and panics
// when asked to fuzz them.
//
// By implementing the gofuzz self-fuzzing interface tests can be run
// multiple types.
func (v *Value) Fuzz(c fuzz.Continue) {
switch c.Intn(18) {
case 0:
v.Data = fmt.Sprintf("%d", c.Int())
case 1:
v.Data = int8(c.Intn(math.MaxInt8))
case 2:
v.Data = int8(-c.Intn(math.MaxInt8))
case 3:
v.Data = int16(c.Intn(math.MaxInt16))
case 4:
v.Data = int16(-c.Intn(math.MaxInt16))
case 5:
v.Data = int32(c.Intn(math.MaxInt32))
case 6:
v.Data = int32(-c.Intn(math.MaxInt32))
case 7:
v.Data = int64(c.Intn(math.MaxInt64))
case 8:
v.Data = int64(-c.Intn(math.MaxInt64))
case 9:
v.Data = uint8(c.Intn(math.MaxUint8))
case 10:
v.Data = uint16(c.Intn(math.MaxUint16))
case 11:
v.Data = c.Uint32()
case 12:
v.Data = c.Uint64()
case 13:
v.Data = byte(c.Intn(math.MaxInt8))
case 14:
bs := make([]byte, 8)
binary.LittleEndian.PutUint64(bs, uint64(c.Int()))
v.Data = bs
case 15:
bs := make([]byte, 8)
binary.LittleEndian.PutUint64(bs, c.Uint64())
v.Data = bs
case 16:
v.Data = c.RandBool()
case 17:
v.Data = c.Float32()
case 18:
v.Data = c.Float64()
}
}
type testValueToConst int
const (
testValueToConst1 testValueToConst = iota
testValueToConst2
testValueToConst3
testValueToConst4
testValueToConst5
)
func (c *testValueToConst) From(v Value) error {
i, err := v.Int()
if err != nil {
return err
}
*c = testValueToConst(i)
return nil
}
func TestValue_To(t *testing.T) {
// test passing pointer
v := NewValue("test")
s := ""
require.Nil(t, v.To(&s))
assert.Equal(t, "test", s)
// test passing pointer of pointer
var s2 *string
require.Nil(t, v.To(&s2))
assert.Equal(t, "test", *s2)
// test some random types
v = NewValue(5)
var i int = 0
require.Nil(t, v.To(&i))
assert.Equal(t, 5, i)
v = NewValue("5")
i = 0
require.Nil(t, v.To(&i))
assert.Equal(t, 5, i)
v = NewValue(uint(math.MaxInt64) + 5)
var u uint = 0
require.Nil(t, v.To(&u))
assert.Equal(t, uint(math.MaxInt64)+5, u)
v = NewValue("192.168.1.1")
var ip net.IP
require.Nil(t, v.To(&ip))
assert.Equal(t, net.ParseIP("192.168.1.1"), ip)
v = NewValue(2)
var c testValueToConst
require.Nil(t, v.To(&c))
assert.Equal(t, testValueToConst3, c)
}
func TestValue_To_Slice(t *testing.T) {
v := NewValue([]int{1, 2, 3})
target1 := []int{}
require.Nil(t, v.To(&target1))
require.Equal(t, 3, len(target1))
assert.Equal(t, 2, target1[1])
v = NewValue("a single string")
target2 := []string{}
require.Nil(t, v.To(&target2))
require.Equal(t, 1, len(target2))
assert.Equal(t, "a single string", target2[0])
}
func TestValue_To_PtrSlice(t *testing.T) {
v := NewValue([]int{1, 2, 3})
target1 := []int{}
target1Ptr := &target1
require.Nil(t, v.To(&target1Ptr))
require.Equal(t, 3, len(target1))
assert.Equal(t, 2, target1[1])
v = NewValue("a single string")
target2 := []string{}
target2Ptr := &target2
require.Nil(t, v.To(&target2Ptr))
require.Equal(t, 1, len(target2))
assert.Equal(t, "a single string", target2[0])
}
func TestValue_List(t *testing.T) {
cfg := newFromConfig()
v, err := NewValue([]int{1, 2, 3}).List()
assert.Nil(t, err)
assert.Equal(t,
[]Value{
Value{Data: 1, cfg: cfg},
Value{Data: 2, cfg: cfg},
Value{Data: 3, cfg: cfg},
},
v,
)
v, err = NewValue([]any{1, "test", 3.56}).List()
assert.Nil(t, err)
assert.Equal(t,
[]Value{
Value{Data: 1, cfg: cfg},
Value{Data: "test", cfg: cfg},
Value{Data: 3.56, cfg: cfg},
},
v,
)
v, err = NewValue("1,2,3").List()
assert.Nil(t, err)
assert.Equal(t,
[]Value{
Value{Data: "1", cfg: cfg},
Value{Data: "2", cfg: cfg},
Value{Data: "3", cfg: cfg},
},
v,
)
assert.Equal(t, 1, v[0].MustInt())
assert.Equal(t, 2, v[1].MustInt())
assert.Equal(t, 3, v[2].MustInt())
v, err = NewValue("one,two,three").List()
assert.Nil(t, err)
assert.Equal(t,
[]Value{
Value{Data: "one", cfg: cfg},
Value{Data: "two", cfg: cfg},
Value{Data: "three", cfg: cfg},
},
v,
)
v, err = NewValue("one\ntwo\nthree").List()
assert.Nil(t, err)
assert.Equal(t,
[]Value{
Value{Data: "one", cfg: cfg},
Value{Data: "two", cfg: cfg},
Value{Data: "three", cfg: cfg},
},
v,
)
}