github.com/m3db/m3@v1.5.0/src/cmd/services/m3comparator/main/parser/parser_test.go (about)

     1  // Copyright (c) 2020 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 abovale 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 parser
    22  
    23  import (
    24  	"encoding/json"
    25  	"math"
    26  	"testing"
    27  
    28  	"github.com/stretchr/testify/assert"
    29  	"github.com/stretchr/testify/require"
    30  )
    31  
    32  func TestElectionStateJSONMarshal(t *testing.T) {
    33  	for _, input := range []struct {
    34  		val Value
    35  		str string
    36  	}{
    37  		{val: 1231243.123123, str: `"1.231243123123e+06"`},
    38  		{val: 0.000000001, str: `"1e-09"`},
    39  		{val: Value(math.NaN()), str: `"NaN"`},
    40  		{val: Value(math.Inf(1)), str: `"+Inf"`},
    41  		{val: Value(math.Inf(-1)), str: `"-Inf"`},
    42  	} {
    43  		b, err := json.Marshal(input.val)
    44  		require.NoError(t, err)
    45  		assert.Equal(t, input.str, string(b))
    46  
    47  		var val Value
    48  		json.Unmarshal([]byte(input.str), &val)
    49  		if math.IsNaN(float64(input.val)) {
    50  			assert.True(t, math.IsNaN(float64(val)))
    51  		} else if math.IsInf(float64(input.val), 1) {
    52  			assert.True(t, math.IsInf(float64(val), 1))
    53  		} else if math.IsInf(float64(input.val), -1) {
    54  			assert.True(t, math.IsInf(float64(val), -1))
    55  		} else {
    56  			assert.Equal(t, input.val, val)
    57  		}
    58  	}
    59  }