config_test.go

Documentation: k8s.io/kubernetes/plugin/pkg/admission/imagepolicy

     1  /*
     2  Copyright 2016 The Kubernetes 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 agreed to 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 imagepolicy
    18  
    19  import (
    20  	"reflect"
    21  	"testing"
    22  	"time"
    23  )
    24  
    25  func TestConfigNormalization(t *testing.T) {
    26  	tests := []struct {
    27  		test             string
    28  		config           imagePolicyWebhookConfig
    29  		normalizedConfig imagePolicyWebhookConfig
    30  		wantErr          bool
    31  	}{
    32  		{
    33  			test: "config within normal ranges",
    34  			config: imagePolicyWebhookConfig{
    35  				AllowTTL:     ((minAllowTTL + maxAllowTTL) / 2) / time.Second,
    36  				DenyTTL:      ((minDenyTTL + maxDenyTTL) / 2) / time.Second,
    37  				RetryBackoff: ((minRetryBackoff + maxRetryBackoff) / 2) / time.Millisecond,
    38  			},
    39  			normalizedConfig: imagePolicyWebhookConfig{
    40  				AllowTTL:     ((minAllowTTL + maxAllowTTL) / 2) / time.Second * time.Second,
    41  				DenyTTL:      ((minDenyTTL + maxDenyTTL) / 2) / time.Second * time.Second,
    42  				RetryBackoff: (minRetryBackoff + maxRetryBackoff) / 2,
    43  			},
    44  			wantErr: false,
    45  		},
    46  		{
    47  			test: "config below normal ranges, error",
    48  			config: imagePolicyWebhookConfig{
    49  				AllowTTL:     minAllowTTL - time.Duration(1),
    50  				DenyTTL:      minDenyTTL - time.Duration(1),
    51  				RetryBackoff: minRetryBackoff - time.Duration(1),
    52  			},
    53  			wantErr: true,
    54  		},
    55  		{
    56  			test: "config above normal ranges, error",
    57  			config: imagePolicyWebhookConfig{
    58  				AllowTTL:     time.Duration(1) + maxAllowTTL,
    59  				DenyTTL:      time.Duration(1) + maxDenyTTL,
    60  				RetryBackoff: time.Duration(1) + maxRetryBackoff,
    61  			},
    62  			wantErr: true,
    63  		},
    64  		{
    65  			test: "config wants default values",
    66  			config: imagePolicyWebhookConfig{
    67  				AllowTTL:     useDefault,
    68  				DenyTTL:      useDefault,
    69  				RetryBackoff: useDefault,
    70  			},
    71  			normalizedConfig: imagePolicyWebhookConfig{
    72  				AllowTTL:     defaultAllowTTL,
    73  				DenyTTL:      defaultDenyTTL,
    74  				RetryBackoff: defaultRetryBackoff,
    75  			},
    76  			wantErr: false,
    77  		},
    78  		{
    79  			test: "config wants disabled values",
    80  			config: imagePolicyWebhookConfig{
    81  				AllowTTL:     disableTTL,
    82  				DenyTTL:      disableTTL,
    83  				RetryBackoff: disableTTL,
    84  			},
    85  			normalizedConfig: imagePolicyWebhookConfig{
    86  				AllowTTL:     time.Duration(0),
    87  				DenyTTL:      time.Duration(0),
    88  				RetryBackoff: time.Duration(0),
    89  			},
    90  			wantErr: false,
    91  		},
    92  		{
    93  			test: "config within normal ranges for min values",
    94  			config: imagePolicyWebhookConfig{
    95  				AllowTTL:     minAllowTTL / time.Second,
    96  				DenyTTL:      minDenyTTL / time.Second,
    97  				RetryBackoff: minRetryBackoff,
    98  			},
    99  			normalizedConfig: imagePolicyWebhookConfig{
   100  				AllowTTL:     minAllowTTL,
   101  				DenyTTL:      minDenyTTL,
   102  				RetryBackoff: minRetryBackoff * time.Millisecond,
   103  			},
   104  			wantErr: false,
   105  		},
   106  		{
   107  			test: "config within normal ranges for max values",
   108  			config: imagePolicyWebhookConfig{
   109  				AllowTTL:     maxAllowTTL / time.Second,
   110  				DenyTTL:      maxDenyTTL / time.Second,
   111  				RetryBackoff: maxRetryBackoff / time.Millisecond,
   112  			},
   113  			normalizedConfig: imagePolicyWebhookConfig{
   114  				AllowTTL:     maxAllowTTL,
   115  				DenyTTL:      maxDenyTTL,
   116  				RetryBackoff: maxRetryBackoff,
   117  			},
   118  			wantErr: false,
   119  		},
   120  	}
   121  	for _, tt := range tests {
   122  		err := normalizeWebhookConfig(&tt.config)
   123  		if err == nil && tt.wantErr {
   124  			t.Errorf("%s: expected error from normalization and didn't have one", tt.test)
   125  		}
   126  		if err != nil && !tt.wantErr {
   127  			t.Errorf("%s: unexpected error from normalization: %v", tt.test, err)
   128  		}
   129  		if err == nil && !reflect.DeepEqual(tt.config, tt.normalizedConfig) {
   130  			t.Errorf("%s: expected config to be normalized. got: %v expected: %v", tt.test, tt.config, tt.normalizedConfig)
   131  		}
   132  	}
   133  }
   134
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