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

     1  package nonNegativeDerivative
     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 TestNonNegativeDerivative(t *testing.T) {
    26  	now32 := int64(time.Now().Unix())
    27  
    28  	tests := []th.EvalTestItem{
    29  		{
    30  			"nonNegativeDerivative(metric1)",
    31  			map[parser.MetricRequest][]*types.MetricData{
    32  				{Metric: "metric1", From: 0, Until: 1}: {types.MakeMetricData("metric1", []float64{2, 4, 6, 10, 14, 20}, 1, now32)},
    33  			},
    34  			[]*types.MetricData{types.MakeMetricData("nonNegativeDerivative(metric1)", []float64{math.NaN(), 2, 2, 4, 4, 6}, 1, now32).SetTag("nonNegativeDerivative", "1")},
    35  		},
    36  		{
    37  			"nonNegativeDerivative(metric1)",
    38  			map[parser.MetricRequest][]*types.MetricData{
    39  				{Metric: "metric1", From: 0, Until: 1}: {types.MakeMetricData("metric1", []float64{2, 4, 6, 1, 4, math.NaN(), 8}, 1, now32)},
    40  			},
    41  			[]*types.MetricData{types.MakeMetricData("nonNegativeDerivative(metric1)", []float64{math.NaN(), 2, 2, math.NaN(), 3, math.NaN(), math.NaN()}, 1, now32).SetTag("nonNegativeDerivative", "1")},
    42  		},
    43  		{
    44  			"nonNegativeDerivative(metric1,32)",
    45  			map[parser.MetricRequest][]*types.MetricData{
    46  				{Metric: "metric1", From: 0, Until: 1}: {types.MakeMetricData("metric1", []float64{2, 4, 0, 10, 1, math.NaN(), 8, 40, 37}, 1, now32)},
    47  			},
    48  			[]*types.MetricData{types.MakeMetricData("nonNegativeDerivative(metric1,32)", []float64{math.NaN(), 2, 29, 10, 24, math.NaN(), math.NaN(), 32, math.NaN()}, 1, now32).SetTag("nonNegativeDerivative", "1")},
    49  		},
    50  		{
    51  			"nonNegativeDerivative(metric1,minValue=1)",
    52  			map[parser.MetricRequest][]*types.MetricData{
    53  				{Metric: "metric1", From: 0, Until: 1}: {types.MakeMetricData("metric1", []float64{2, 4, 2, 10, 1, math.NaN(), 8, 40, 37}, 1, now32)},
    54  			},
    55  			[]*types.MetricData{types.MakeMetricData("nonNegativeDerivative(metric1,minValue=1)", []float64{math.NaN(), 2, 1, 8, 0, math.NaN(), math.NaN(), 32, 36}, 1, now32).SetTag("nonNegativeDerivative", "1")},
    56  		},
    57  		{
    58  			"nonNegativeDerivative(metric1)",
    59  			map[parser.MetricRequest][]*types.MetricData{
    60  				{Metric: "metric1", From: 0, Until: 1}: {types.MakeMetricData("metric1", []float64{}, 1, now32)},
    61  			},
    62  			[]*types.MetricData{types.MakeMetricData("nonNegativeDerivative(metric1)", []float64{}, 1, now32).SetTag("nonNegativeDerivative", "1")},
    63  		},
    64  	}
    65  
    66  	for _, tt := range tests {
    67  		testName := tt.Target
    68  		t.Run(testName, func(t *testing.T) {
    69  			eval := th.EvaluatorFromFunc(md[0].F)
    70  			th.TestEvalExpr(t, eval, &tt)
    71  		})
    72  	}
    73  
    74  }