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

     1  package pow
     2  
     3  import (
     4  	"math"
     5  	"testing"
     6  	"time"
     7  
     8  	"github.com/go-graphite/carbonapi/expr/interfaces"
     9  	"github.com/go-graphite/carbonapi/expr/metadata"
    10  	"github.com/go-graphite/carbonapi/expr/types"
    11  	"github.com/go-graphite/carbonapi/pkg/parser"
    12  	th "github.com/go-graphite/carbonapi/tests"
    13  )
    14  
    15  var (
    16  	md []interfaces.FunctionMetadata = New("")
    17  )
    18  
    19  func init() {
    20  	for _, m := range md {
    21  		metadata.RegisterFunction(m.Name, m.F)
    22  	}
    23  }
    24  
    25  func TestFunction(t *testing.T) {
    26  	now32 := int64(time.Now().Unix())
    27  
    28  	tests := []th.EvalTestItem{
    29  		{
    30  			"pow(metric1,3)",
    31  			map[parser.MetricRequest][]*types.MetricData{
    32  				{Metric: "metric1", From: 0, Until: 1}: {types.MakeMetricData("metric1", []float64{5, 1, math.NaN(), 0, 12, 125, 10.4, 1.1}, 60, now32)},
    33  			},
    34  			[]*types.MetricData{types.MakeMetricData("pow(metric1,3)", []float64{125, 1, math.NaN(), 0, 1728, 1953125, 1124.864, 1.331}, 60, now32).SetTag("pow", "3")},
    35  		},
    36  		{
    37  			"pow(metric1,0)",
    38  			map[parser.MetricRequest][]*types.MetricData{
    39  				{Metric: "metric1", From: 0, Until: 1}: {types.MakeMetricData("metric1", []float64{math.NaN(), math.NaN(), math.NaN(), math.NaN(), math.NaN(), math.NaN(), math.NaN(), math.NaN()}, 60, now32)},
    40  			},
    41  			[]*types.MetricData{types.MakeMetricData("pow(metric1,0)", []float64{math.NaN(), math.NaN(), math.NaN(), math.NaN(), math.NaN(), math.NaN(), math.NaN(), math.NaN()}, 60, now32).SetTag("pow", "0")},
    42  		},
    43  	}
    44  
    45  	for _, tt := range tests {
    46  		testName := tt.Target
    47  		t.Run(testName, func(t *testing.T) {
    48  			eval := th.EvaluatorFromFunc(md[0].F)
    49  			th.TestEvalExpr(t, eval, &tt)
    50  		})
    51  	}
    52  
    53  }