vitess.io/vitess@v0.16.2/go/vt/topo/k8stopo/file_test.go (about)

     1  /*
     2  Copyright 2020 The Vitess Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreedto in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package k8stopo
    18  
    19  import (
    20  	"reflect"
    21  	"testing"
    22  )
    23  
    24  func Test_packValue(t *testing.T) {
    25  	tests := []struct {
    26  		name    string
    27  		value   []byte
    28  		want    []byte
    29  		wantErr bool
    30  	}{
    31  		{
    32  			// a gzip with an empty payload still has header bytes to identify the stream
    33  			"empty",
    34  			[]byte{},
    35  			[]byte{72, 52, 115, 73, 65, 65, 65, 65, 65, 65, 65, 65, 47, 119, 69, 65, 65, 80, 47, 47, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 61},
    36  			false,
    37  		},
    38  		{
    39  			"valid payload",
    40  			[]byte("test payload"),
    41  			[]byte{72, 52, 115, 73, 65, 65, 65, 65, 65, 65, 65, 65, 47, 121, 112, 74, 76, 83, 53, 82, 75, 69, 105, 115, 122, 77, 108, 80, 84, 65, 69, 69, 65, 65, 68, 47, 47, 43, 69, 57, 72, 101, 115, 77, 65, 65, 65, 65},
    42  			false,
    43  		},
    44  	}
    45  	for _, tt := range tests {
    46  		t.Run(tt.name, func(t *testing.T) {
    47  			got, err := packValue(tt.value)
    48  			if (err != nil) != tt.wantErr {
    49  				t.Errorf("packValue() error = %v, wantErr %v", err, tt.wantErr)
    50  				return
    51  			}
    52  			if !reflect.DeepEqual(got, tt.want) {
    53  				t.Errorf("packValue() = %v, want %v", got, tt.want)
    54  			}
    55  		})
    56  	}
    57  }
    58  
    59  func Test_unpackValue(t *testing.T) {
    60  	tests := []struct {
    61  		name    string
    62  		value   []byte
    63  		want    []byte
    64  		wantErr bool
    65  	}{
    66  		{
    67  			// a gzip with an empty payload still has header bytes to identify the stream
    68  			"empty",
    69  			[]byte{72, 52, 115, 73, 65, 65, 65, 65, 65, 65, 65, 65, 47, 119, 69, 65, 65, 80, 47, 47, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 61},
    70  			[]byte{},
    71  			false,
    72  		},
    73  		{
    74  			"valid payload",
    75  			[]byte{72, 52, 115, 73, 65, 65, 65, 65, 65, 65, 65, 65, 47, 121, 112, 74, 76, 83, 53, 82, 75, 69, 105, 115, 122, 77, 108, 80, 84, 65, 69, 69, 65, 65, 68, 47, 47, 43, 69, 57, 72, 101, 115, 77, 65, 65, 65, 65},
    76  			[]byte("test payload"),
    77  			false,
    78  		},
    79  	}
    80  	for _, tt := range tests {
    81  		t.Run(tt.name, func(t *testing.T) {
    82  			got, err := unpackValue(tt.value)
    83  			if (err != nil) != tt.wantErr {
    84  				t.Errorf("unpackValue() error = %v, wantErr %v", err, tt.wantErr)
    85  				return
    86  			}
    87  			if !reflect.DeepEqual(got, tt.want) {
    88  				t.Errorf("unpackValue() = %v, want %v", got, tt.want)
    89  			}
    90  		})
    91  	}
    92  }
    93  
    94  func Test_packUnpackRoundTrip(t *testing.T) {
    95  	tests := []struct {
    96  		name    string
    97  		value   []byte
    98  		wantErr bool
    99  	}{
   100  		{
   101  			"empty",
   102  			[]byte{},
   103  			false,
   104  		},
   105  		{
   106  			"valid payload",
   107  			[]byte("test payload"),
   108  			false,
   109  		},
   110  	}
   111  	for _, tt := range tests {
   112  		t.Run(tt.name, func(t *testing.T) {
   113  			packed, err := packValue(tt.value)
   114  			if (err != nil) != tt.wantErr {
   115  				t.Errorf("packValue() error = %v, wantErr %v", err, tt.wantErr)
   116  				return
   117  			}
   118  
   119  			unpacked, err := unpackValue(packed)
   120  			if (err != nil) != tt.wantErr {
   121  				t.Errorf("packValue() error = %v, wantErr %v", err, tt.wantErr)
   122  				return
   123  			}
   124  
   125  			if !reflect.DeepEqual(unpacked, tt.value) {
   126  				t.Errorf("unpacked value != original value original = %v, unpacked %v", tt.value, unpacked)
   127  				return
   128  			}
   129  		})
   130  	}
   131  }