github.com/m3db/m3@v1.5.0/src/metrics/metric/types_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 metric
    22  
    23  import (
    24  	"testing"
    25  
    26  	"github.com/m3db/m3/src/metrics/generated/proto/metricpb"
    27  
    28  	"github.com/stretchr/testify/require"
    29  	yaml "gopkg.in/yaml.v2"
    30  )
    31  
    32  func TestTypeUnmarshalYAML(t *testing.T) {
    33  	inputs := []struct {
    34  		str      string
    35  		expected Type
    36  	}{
    37  		{str: "counter", expected: CounterType},
    38  		{str: "timer", expected: TimerType},
    39  		{str: "gauge", expected: GaugeType},
    40  	}
    41  	for _, input := range inputs {
    42  		var typ Type
    43  		require.NoError(t, yaml.Unmarshal([]byte(input.str), &typ))
    44  		require.Equal(t, input.expected, typ)
    45  	}
    46  }
    47  
    48  func TestTypeUnmarshalYAMLErrors(t *testing.T) {
    49  	inputs := []string{
    50  		"huh",
    51  		"blah",
    52  	}
    53  	for _, input := range inputs {
    54  		var typ Type
    55  		err := yaml.Unmarshal([]byte(input), &typ)
    56  		require.Error(t, err)
    57  		require.Equal(t, "invalid metric type '"+input+"', valid types are: counter, timer, gauge", err.Error())
    58  	}
    59  }
    60  
    61  func TestMustParseType(t *testing.T) {
    62  	require.Equal(t, CounterType, MustParseType("counter"))
    63  	require.Panics(t, func() { MustParseType("foo") })
    64  }
    65  
    66  func TestTypeToProto(t *testing.T) {
    67  	inputs := []struct {
    68  		metricType Type
    69  		expected   metricpb.MetricType
    70  	}{
    71  		{
    72  			metricType: UnknownType,
    73  			expected:   metricpb.MetricType_UNKNOWN,
    74  		},
    75  		{
    76  			metricType: CounterType,
    77  			expected:   metricpb.MetricType_COUNTER,
    78  		},
    79  		{
    80  			metricType: TimerType,
    81  			expected:   metricpb.MetricType_TIMER,
    82  		},
    83  		{
    84  			metricType: GaugeType,
    85  			expected:   metricpb.MetricType_GAUGE,
    86  		},
    87  	}
    88  
    89  	for _, input := range inputs {
    90  		var mt metricpb.MetricType
    91  		require.NoError(t, input.metricType.ToProto(&mt))
    92  		require.Equal(t, input.expected, mt)
    93  	}
    94  }
    95  
    96  func TestTypeToProtoBadType(t *testing.T) {
    97  	inputs := []Type{
    98  		Type(1000),
    99  	}
   100  
   101  	for _, input := range inputs {
   102  		var mt metricpb.MetricType
   103  		require.Error(t, input.ToProto(&mt))
   104  	}
   105  }
   106  
   107  func TestTypeFromProto(t *testing.T) {
   108  	inputs := []struct {
   109  		metricType metricpb.MetricType
   110  		expected   Type
   111  	}{
   112  		{
   113  			metricType: metricpb.MetricType_UNKNOWN,
   114  			expected:   UnknownType,
   115  		},
   116  		{
   117  			metricType: metricpb.MetricType_COUNTER,
   118  			expected:   CounterType,
   119  		},
   120  		{
   121  			metricType: metricpb.MetricType_TIMER,
   122  			expected:   TimerType,
   123  		},
   124  		{
   125  			metricType: metricpb.MetricType_GAUGE,
   126  			expected:   GaugeType,
   127  		},
   128  	}
   129  
   130  	var mt Type
   131  	for _, input := range inputs {
   132  		require.NoError(t, mt.FromProto(input.metricType))
   133  		require.Equal(t, input.expected, mt)
   134  	}
   135  }
   136  
   137  func TestTypeFromProtoBadTypeProto(t *testing.T) {
   138  	inputs := []metricpb.MetricType{
   139  		metricpb.MetricType(1000),
   140  	}
   141  
   142  	for _, input := range inputs {
   143  		var mt Type
   144  		require.Error(t, mt.FromProto(input))
   145  	}
   146  }