github.com/google/cloudprober@v0.11.3/targets/gce/gce_utils_test.go (about)

     1  // Copyright 2017-2019 The Cloudprober Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package gce
    16  
    17  import (
    18  	"testing"
    19  
    20  	"github.com/golang/protobuf/proto"
    21  	rdspb "github.com/google/cloudprober/rds/proto"
    22  )
    23  
    24  func TestParseLabels(t *testing.T) {
    25  	tests := []struct {
    26  		desc       string
    27  		label      string
    28  		shouldFail bool
    29  		want       []*rdspb.Filter
    30  	}{
    31  		{
    32  			"Valid label should succeed",
    33  			"k:v",
    34  			false,
    35  			[]*rdspb.Filter{
    36  				{
    37  					Key:   proto.String("labels.k"),
    38  					Value: proto.String("v"),
    39  				},
    40  			},
    41  		},
    42  		{
    43  			"Multiple separators should fail",
    44  			"k:v:t",
    45  			true,
    46  			nil,
    47  		},
    48  		{
    49  			"No separator should fail",
    50  			"kv",
    51  			true,
    52  			nil,
    53  		},
    54  	}
    55  
    56  	for _, test := range tests {
    57  		t.Run(test.desc, func(t *testing.T) {
    58  			got, err := parseLabels([]string{test.label})
    59  			if test.shouldFail && err == nil {
    60  				t.Errorf("parseLabels() error got:nil, want:error")
    61  			} else if !test.shouldFail && err != nil {
    62  				t.Errorf("parseLabels()  error got:%s, want:nil", err)
    63  			}
    64  
    65  			eq := len(got) == len(test.want)
    66  			for i := 0; i < len(got) && i < len(test.want); i++ {
    67  				eq = eq && proto.Equal(got[i], test.want[i])
    68  			}
    69  			if !eq {
    70  				t.Errorf("parseLabels()  got:%s, want:%s", got, test.want)
    71  			}
    72  		})
    73  	}
    74  }