func TestJoin(t *testing.T) {
a := []string{"satu", "dua", "tiga", "empat", "lima", "enam", "tujuh", "delapan", "sembilan", "sepuluh"}
b := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
cjoin := crowd.From(&a).Join(&b, func(x, y interface{}) bool {
xi := len(x.(string))
yi := y.(int)
return xi == yi
}, nil).Group(func(x interface{}) interface{} {
return x.(toolkit.M).Get("data2")
}, func(x interface{}) interface{} {
return x.(toolkit.M).Get("data1")
}).Exec()
check(t, cjoin.Error, "")
toolkit.Printfn("Data:\n%s", toolkit.JsonString(cjoin.Result.Data()))
}
func TestWhereSelectGroup(t *testing.T) {
skipIfNil(t)
c1 := *c
cwhere := c1.Where(func(x interface{}) interface{} {
if x.(Obj).I < 200 {
return true
}
return false
}).Exec()
check(t, cwhere.Error, "")
toolkit.Println("First 20 data: ", toolkit.JsonString(cwhere.Result.Data().([]Obj)))
cselect := cwhere.Apply(func(x interface{}) interface{} {
return x.(Obj).F
}).Exec()
check(t, cselect.Error, "")
toolkit.Println("Select : First 20 data: ", toolkit.JsonString(cselect.Result.Data().([]float64)[:20]))
cgroup := cselect.Group(func(x interface{}) interface{} {
return (x.(float64) - math.Mod(x.(float64), float64(100))) / float64(100)
}, nil).Exec()
check(t, cgroup.Error, "")
datas := cgroup.Result.Data().([]crowd.KV)
for _, v := range datas {
toolkit.Printf("Group %2.0f: %d data: %v\n",
v.Key,
len(v.Value.([]float64)),
v.Value.([]float64))
}
cgroupaggr := cselect.Apply(func(x interface{}) interface{} {
kv := x.(crowd.KV)
vs := kv.Value.([]float64)
sum := crowd.From(&vs).Sum(nil).Exec().Result.Sum
return crowd.KV{kv.Key, sum}
}).Exec()
check(t, cgroupaggr.Error, "")
toolkit.Println("GroupAggr: First 20 data: ", toolkit.JsonString(cgroupaggr.Result.Data().([]crowd.KV)))
cgroupaggrmax := cgroupaggr.Max(func(x interface{}) interface{} {
return x.(crowd.KV).Value
}).Exec()
check(t, cgroupaggrmax.Error, "")
toolkit.Println("GroupAggrMax: ", cgroupaggrmax.Result.Max)
//c = crowd.From(&objs)
toolkit.Printfn("Data len: %d", c.Len())
c2 := *c
oneshot := c2.Apply(func(x interface{}) interface{} {
return float64(x.(Obj).I)
}).Group(func(x interface{}) interface{} {
return (x.(float64) - math.Mod(x.(float64), float64(100))) / float64(100)
}, nil).Apply(func(x interface{}) interface{} {
kv := x.(crowd.KV)
vs := kv.Value.([]float64)
sum := crowd.From(&vs).Sum(nil).Exec().Result.Sum
return crowd.KV{kv.Key, sum}
}).Sum(func(x interface{}) interface{} {
return x.(crowd.KV).Value
}).Exec()
check(t, oneshot.Error, "")
toolkit.Println("Oneshot: ", oneshot.Result.Sum)
}