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

     1  package constantLine
     2  
     3  import (
     4  	"testing"
     5  
     6  	"github.com/go-graphite/carbonapi/expr/interfaces"
     7  	"github.com/go-graphite/carbonapi/expr/metadata"
     8  	"github.com/go-graphite/carbonapi/expr/types"
     9  	"github.com/go-graphite/carbonapi/pkg/parser"
    10  	th "github.com/go-graphite/carbonapi/tests"
    11  )
    12  
    13  var (
    14  	md []interfaces.FunctionMetadata = New("")
    15  )
    16  
    17  func init() {
    18  	for _, m := range md {
    19  		metadata.RegisterFunction(m.Name, m.F)
    20  	}
    21  }
    22  
    23  func TestConstantLine(t *testing.T) {
    24  	tests := []th.EvalTestItem{
    25  		{
    26  			"constantLine(42.42)",
    27  			map[parser.MetricRequest][]*types.MetricData{},
    28  			[]*types.MetricData{types.MakeMetricData("42.42",
    29  				[]float64{42.42, 42.42}, 1, 0)},
    30  		},
    31  		{
    32  			"constantLine('42.42')", // Verify string input can be parsed into int or float
    33  			map[parser.MetricRequest][]*types.MetricData{},
    34  			[]*types.MetricData{types.MakeMetricData("42.42",
    35  				[]float64{42.42, 42.42}, 1, 0)},
    36  		},
    37  	}
    38  
    39  	for _, tt := range tests {
    40  		testName := tt.Target
    41  		t.Run(testName, func(t *testing.T) {
    42  			eval := th.EvaluatorFromFunc(md[0].F)
    43  			th.TestEvalExpr(t, eval, &tt)
    44  		})
    45  	}
    46  
    47  }