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generator_test.go
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generator_test.go
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package flake
import (
"reflect"
"sync"
"testing"
)
func TestID_Decimal(t *testing.T) {
tests := []struct {
name string
i ID
want string
}{
{
name: "Basic",
i: ID(1234),
want: "1234",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := tt.i.Decimal(); got != tt.want {
t.Errorf("ID.Decimal() = %v, want %v", got, tt.want)
}
})
}
}
func TestID_String(t *testing.T) {
tests := []struct {
name string
i ID
want string
}{
{
name: "Basic",
i: ID(0x12345555AAAA4321),
want: "048D15556AAA-24-321",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := tt.i.String(); got != tt.want {
t.Errorf("ID.String() = %v, want %v", got, tt.want)
}
})
}
}
func TestGenerate(t *testing.T) {
type args struct {
worker uint64
seq uint64
}
tests := []struct {
name string
args args
wantErr bool
}{
{
name: "basic",
args: args{
worker: 25,
seq: 12,
},
wantErr: false,
},
{
name: "worker zero error",
args: args{
worker: 0,
seq: 12,
},
wantErr: true,
},
{
name: "worker error",
args: args{
worker: 100,
seq: 12,
},
wantErr: true,
},
{
name: "sequence zero error",
args: args{
seq: 0,
worker: 12,
},
wantErr: true,
},
{
name: "sequence error",
args: args{
seq: 5000,
worker: 12,
},
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
_, err := Generate(tt.args.worker, tt.args.seq)
if (err != nil) != tt.wantErr {
t.Errorf("Generate() error = %v, wantErr %v", err, tt.wantErr)
return
}
})
}
}
func Test_generate(t *testing.T) {
type args struct {
epoch uint64
worker uint64
seq uint64
}
tests := []struct {
name string
args args
want ID
}{
{
name: "basic",
args: args{
epoch: uint64(0x00FF00),
worker: uint64(0x0C),
seq: uint64(0x0F0),
},
want: ID(0x3FC00C0F0),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := generate(tt.args.epoch, tt.args.worker, tt.args.seq); got != tt.want {
t.Errorf("generate() = %v, want %v", got, tt.want)
}
})
}
}
func TestNew(t *testing.T) {
type args struct {
worker uint64
}
tests := []struct {
name string
args args
want *Generator
wantErr bool
}{
{
name: "error",
args: args{
worker: 0,
},
wantErr: true,
},
{
name: "error",
args: args{
worker: 64,
},
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := New(tt.args.worker)
if (err != nil) != tt.wantErr {
t.Errorf("New() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("New() = %v, want %v", got, tt.want)
}
})
}
}
func TestGenerator_Generate(t *testing.T) {
type fields struct {
epoch uint64
seq uint64
worker uint64
}
tests := []struct {
name string
fields fields
want ID
wantErr bool
}{
{
name: "basic",
fields: fields{
worker: 0xF,
},
want: ID(0xF001),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
g := &Generator{
epoch: tt.fields.epoch,
seq: tt.fields.seq,
worker: tt.fields.worker,
mutex: sync.Mutex{},
}
got, err := g.Generate()
if (err != nil) != tt.wantErr {
t.Errorf("Generator.Generate() error = %v, wantErr %v", err, tt.wantErr)
return
}
got &= 0xFFFF
if got != tt.want {
t.Errorf("Generator.Generate() = %v, want %v", got, tt.want)
}
})
}
}