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bytes_test.go
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bytes_test.go
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package lnk
import (
"testing"
)
var (
b0 = []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07}
b1 = []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A}
b2 = []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D}
b3 = []byte{0xFF, 0xEE, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D}
b4 = []byte{0xCC, 0xDD, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D}
b5 = []byte{0xBB, 0xAA, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D}
)
func Test_uint16Little(t *testing.T) {
type args struct {
b []byte
}
tests := []struct {
name string
args args
want uint16
}{
{"b0", args{b0}, 0x0100},
{"b1", args{b1}, 0x0100},
{"b2", args{b2}, 0x0100},
{"b3", args{b3}, 0xEEFF},
{"b4", args{b4}, 0xDDCC},
{"b5", args{b5}, 0xAABB},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := uint16Little(tt.args.b); got != tt.want {
t.Errorf("uint16Little() = %v, want %v", got, tt.want)
}
})
}
}
func Test_uint32Little(t *testing.T) {
type args struct {
b []byte
}
tests := []struct {
name string
args args
want uint32
}{
{"b0", args{b0}, 0x03020100},
{"b1", args{b1}, 0x03020100},
{"b2", args{b2}, 0x03020100},
{"b3", args{b3}, 0x0302EEFF},
{"b4", args{b4}, 0x0302DDCC},
{"b5", args{b5}, 0x0302AABB},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := uint32Little(tt.args.b); got != tt.want {
t.Errorf("uint32Little() = %v, want %v", got, tt.want)
}
})
}
}
func Test_uint64Little(t *testing.T) {
type args struct {
b []byte
}
tests := []struct {
name string
args args
want uint64
}{
{"b0", args{b0}, 0x0706050403020100},
{"b1", args{b1}, 0x0706050403020100},
{"b2", args{b2}, 0x0706050403020100},
{"b3", args{b3}, 0x070605040302EEFF},
{"b4", args{b4}, 0x070605040302DDCC},
{"b5", args{b5}, 0x070605040302AABB},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := uint64Little(tt.args.b); got != tt.want {
t.Errorf("uint64Little() = %v, want %v", got, tt.want)
}
})
}
}
func Test_byteMaskuint16(t *testing.T) {
type args struct {
b uint16
n int
}
tests := []struct {
name string
args args
want uint16
}{
{"highbyte", args{uint16(0xAABB), 1}, 0xAA},
{"lowbyte", args{uint16(0xAABB), 0}, 0xBB},
{"highbyte-zero", args{uint16(0x00BB), 1}, 0x00},
{"lowbyte-zero", args{uint16(0xAA00), 0}, 0x00},
{"byte-0", args{b: 0xBBAA, n: 0}, 0x00AA},
{"byte-1", args{b: 0xBBAA, n: 1}, 0x00BB},
{"invalid", args{b: 0x0201, n: 0}, 0x0001},
{"byte-1", args{b: 0x0201, n: 1}, 0x0002},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := byteMaskuint16(tt.args.b, tt.args.n); got != tt.want {
t.Errorf("byteMaskuint16() = %v, want %v", got, tt.want)
}
})
}
}
func Test_bitMaskuint32(t *testing.T) {
// 255 is 1111 1111
u255 := uint32(255)
// 0 is 0000 0000
u0 := uint32(0)
type args struct {
b uint32
n int
}
tests := []struct {
name string
args args
want bool
}{
{"bit0-255", args{u255, 0}, true},
{"bit1-255", args{u255, 0}, true},
{"bit2-255", args{u255, 0}, true},
{"bit3-255", args{u255, 0}, true},
{"bit4-255", args{u255, 0}, true},
{"bit5-255", args{u255, 0}, true},
{"bit6-255", args{u255, 0}, true},
{"bit7-255", args{u255, 0}, true},
{"bit0-0", args{u0, 0}, false},
{"bit1-0", args{u0, 0}, false},
{"bit2-0", args{u0, 0}, false},
{"bit3-0", args{u0, 0}, false},
{"bit4-0", args{u0, 0}, false},
{"bit5-0", args{u0, 0}, false},
{"bit6-0", args{u0, 0}, false},
{"bit7-0", args{u0, 0}, false},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := bitMaskuint32(tt.args.b, tt.args.n); got != tt.want {
t.Errorf("bitMaskuint32() = %v, want %v", got, tt.want)
}
})
}
}
func Test_readString(t *testing.T) {
type args struct {
data []byte
}
tests := []struct {
name string
args args
want string
}{
{"normal-0123", args{[]byte{0x30, 0x31, 0x32, 0x33, 0x00, 0x34, 0x35, 0x36}}, "0123"},
{"no-0x00", args{[]byte{0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36}}, "0123456"},
{"start-0x00", args{[]byte{0x00, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36}}, ""},
{"multiple-sequential-0x00", args{[]byte{0x30, 0x31, 0x32, 0x33, 0x00, 0x00, 0x34, 0x35, 0x36}}, "0123"},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := readString(tt.args.data); got != tt.want {
t.Errorf("readString() = %v, want %v", got, tt.want)
}
})
}
}
func Test_readUnicodeString(t *testing.T) {
type args struct {
data []byte
}
tests := []struct {
name string
args args
want string
}{
{"normal-0123", args{[]byte{0x30, 0x00, 0x31, 0x00, 0x32, 0x00, 0x33, 0x00, 0x00, 0x00}}, "0123"},
{"normal-0123-2", args{[]byte{0x30, 0x00, 0x31, 0x00, 0x32, 0x00, 0x33, 0x00, 0x00, 0x00, 0x34, 0x00, 0x35, 0x00, 0x36, 0x00}}, "0123"},
{"no-0x00", args{[]byte{0x30, 0x00, 0x31, 0x00, 0x32, 0x00, 0x33, 0x00, 0x34, 0x00, 0x35, 0x00, 0x36, 0x00}}, "0123456"},
{"start-0x00", args{[]byte{0x00, 0x00, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36}}, ""},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := readUnicodeString(tt.args.data); got != tt.want {
t.Errorf("readUnicodeString() = %v, want %v", got, tt.want)
}
})
}
}