package promql_test


import "testing"
import "internal/promql"
import "csv"

option now = () => 2030-01-01T00:00:00Z

inData =
    "
#datatype,string,long,dateTime:RFC3339,string,double,string
#group,false,false,false,true,false,true
#default,inData,,,,,
,result,table,_time,_field,_value,_measurement
,,0,2018-12-18T20:52:33Z,metric_name1,1,prometheus
,,0,2018-12-18T20:52:43Z,metric_name1,1,prometheus
,,0,2018-12-18T20:52:53Z,metric_name1,1,prometheus
,,0,2018-12-18T20:53:03Z,metric_name1,1,prometheus
,,0,2018-12-18T20:53:13Z,metric_name1,1,prometheus
,,0,2018-12-18T20:53:23Z,metric_name1,1,prometheus
,,1,2018-12-18T20:52:33Z,metric_name2,1,prometheus
,,1,2018-12-18T20:52:43Z,metric_name2,1,prometheus
,,1,2018-12-18T20:52:53Z,metric_name2,1,prometheus
,,1,2018-12-18T20:53:03Z,metric_name2,2,prometheus
,,1,2018-12-18T20:53:13Z,metric_name2,2,prometheus
,,1,2018-12-18T20:53:23Z,metric_name2,2,prometheus
,,2,2018-12-18T20:52:33Z,metric_name3,1,prometheus
,,2,2018-12-18T20:52:43Z,metric_name3,2,prometheus
,,2,2018-12-18T20:52:53Z,metric_name3,3,prometheus
,,2,2018-12-18T20:53:03Z,metric_name3,1,prometheus
,,2,2018-12-18T20:53:13Z,metric_name3,2,prometheus
,,2,2018-12-18T20:53:23Z,metric_name3,3,prometheus
"
outData =
    "
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,string,double,string
#group,false,false,true,true,true,false,true
#default,outData,,,,,,
,result,table,_start,_stop,_field,_value,_measurement
,,0,2018-12-01T00:00:00Z,2030-01-01T00:00:00Z,metric_name1,0,prometheus
,,1,2018-12-01T00:00:00Z,2030-01-01T00:00:00Z,metric_name2,1,prometheus
,,2,2018-12-01T00:00:00Z,2030-01-01T00:00:00Z,metric_name3,5,prometheus
"

testcase changes {
    got =
        csv.from(csv: inData)
            |> testing.load()
            |> range(start: 2018-12-01T00:00:00Z)
            |> promql.changes()
    want = csv.from(csv: outData)

    testing.diff(got, want)
}
