github.com/go-graphite/carbonapi@v0.17.0/expr/functions/timeStack/function_test.go (about)

     1  package timeStack
     2  
     3  import (
     4  	"math"
     5  	"testing"
     6  
     7  	"github.com/go-graphite/carbonapi/expr/interfaces"
     8  	"github.com/go-graphite/carbonapi/expr/metadata"
     9  	"github.com/go-graphite/carbonapi/expr/types"
    10  	"github.com/go-graphite/carbonapi/pkg/parser"
    11  	th "github.com/go-graphite/carbonapi/tests"
    12  )
    13  
    14  var (
    15  	md []interfaces.FunctionMetadata = New("")
    16  )
    17  
    18  func init() {
    19  	for _, m := range md {
    20  		metadata.RegisterFunction(m.Name, m.F)
    21  	}
    22  }
    23  
    24  func TestTimeStack(t *testing.T) {
    25  	var startTime int64 = 86400
    26  
    27  	tests := []th.EvalTestItemWithRange{
    28  		// TODO(civil): Do not pass `true` resetEnd parameter in 0.15
    29  		{
    30  			Target: `timeStack(metric1, "10m", 0)`,
    31  			M: map[parser.MetricRequest][]*types.MetricData{
    32  				{Metric: "metric1", From: startTime, Until: startTime + 6}: {types.MakeMetricData("metric1", []float64{math.NaN(), math.NaN(), math.NaN(), 3, math.NaN(), 5, 6, math.NaN(), 7, math.NaN(), math.NaN()}, 60, startTime)},
    33  			},
    34  			Want: []*types.MetricData{types.MakeMetricData("timeShift(metric1,10m,0)",
    35  				[]float64{math.NaN(), math.NaN(), math.NaN(), 3, math.NaN(), 5, 6, math.NaN(), 7, math.NaN(), math.NaN()}, 60, startTime).SetTags(map[string]string{"timeShift": "0", "timeShiftUnit": "10m"}).SetNameTag("metric1")},
    36  			From:  startTime,
    37  			Until: startTime + 6,
    38  		},
    39  	}
    40  
    41  	for _, tt := range tests {
    42  		testName := tt.Target
    43  		t.Run(testName, func(t *testing.T) {
    44  			eval := th.EvaluatorFromFunc(md[0].F)
    45  			th.TestEvalExprWithRange(t, eval, &tt)
    46  		})
    47  	}
    48  }