github.com/m3db/m3@v1.5.1-0.20231129193456-75a402aa583b/src/metrics/transformation/func_test.go (about)

     1  // Copyright (c) 2017 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package transformation
    22  
    23  import (
    24  	"math"
    25  	"testing"
    26  
    27  	"github.com/stretchr/testify/require"
    28  )
    29  
    30  func TestDatapointIsEmpty(t *testing.T) {
    31  	inputs := []struct {
    32  		dp       Datapoint
    33  		expected bool
    34  	}{
    35  		{dp: Datapoint{TimeNanos: 0, Value: math.NaN()}, expected: true},
    36  		{dp: Datapoint{TimeNanos: 1234, Value: math.NaN()}, expected: true},
    37  		{dp: emptyDatapoint, expected: true},
    38  		{dp: Datapoint{TimeNanos: 0, Value: 5678.0}, expected: false},
    39  		{dp: Datapoint{TimeNanos: 1234}, expected: false},
    40  	}
    41  
    42  	for _, input := range inputs {
    43  		require.Equal(t, input.expected, input.dp.IsEmpty())
    44  	}
    45  }