1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
* Copyright 2018 Intel Corporation, Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package helm
import (
"crypto/sha256"
"fmt"
"io/ioutil"
"path/filepath"
"strings"
"testing"
)
func TestProcessValues(t *testing.T) {
chartDir := "../../mock_files/mock_charts/testchart2"
profileDir := "../../mock_files/mock_profiles/profile1"
testCases := []struct {
label string
valueFiles []string
values []string
expectedHash string
expectedError string
}{
{
label: "Process Values with Value Files Override",
valueFiles: []string{
filepath.Join(chartDir, "values.yaml"),
filepath.Join(profileDir, "override_values.yaml"),
},
//Hash of a combined values.yaml file that is expected
expectedHash: "c18a70f426933de3c051c996dc34fd537d0131b2d13a2112a2ecff674db6c2f9",
expectedError: "",
},
{
label: "Process Values with Values Pair Override",
valueFiles: []string{
filepath.Join(chartDir, "values.yaml"),
},
//Use the same convention as specified in helm template --set
values: []string{
"service.externalPort=82",
},
//Hash of a combined values.yaml file that is expected
expectedHash: "028a3521fc9f8777ea7e67a6de0c51f2c875b88ca91734999657f0ca924ddb7a",
expectedError: "",
},
{
label: "Process Values with Both Overrides",
valueFiles: []string{
filepath.Join(chartDir, "values.yaml"),
filepath.Join(profileDir, "override_values.yaml"),
},
//Use the same convention as specified in helm template --set
//Key takes precedence over the value from override_values.yaml
values: []string{
"service.externalPort=82",
},
//Hash of a combined values.yaml file that is expected
expectedHash: "516fab4ab7b76ba2ff35a97c2a79b74302543f532857b945f2fe25e717e755be",
expectedError: "",
},
}
h := sha256.New()
for _, testCase := range testCases {
t.Run(testCase.label, func(t *testing.T) {
tc := NewTemplateClient("1.12.3", "testnamespace", "testreleasename")
out, err := tc.processValues(testCase.valueFiles, testCase.values)
if err != nil {
if testCase.expectedError == "" {
t.Fatalf("Got an error %s", err)
}
if strings.Contains(err.Error(), testCase.expectedError) == false {
t.Fatalf("Got unexpected error message %s", err)
}
} else {
//Compute the hash of returned data and compare
h.Write(out)
gotHash := fmt.Sprintf("%x", h.Sum(nil))
h.Reset()
if gotHash != testCase.expectedHash {
t.Fatalf("Got unexpected values.yaml %s", out)
}
}
})
}
}
func TestGenerateKubernetesArtifacts(t *testing.T) {
chartDir := "../../mock_files/mock_charts/testchart2"
profileDir := "../../mock_files/mock_profiles/profile1"
testCases := []struct {
label string
chartPath string
valueFiles []string
values []string
expectedHashMap map[string]string
expectedError string
}{
{
label: "Generate artifacts without any overrides",
chartPath: chartDir,
valueFiles: []string{},
values: []string{},
//sha256 hash of the evaluated templates in each chart
expectedHashMap: map[string]string{
"testchart2/templates/service.yaml": "fdd6a2b6795486f0dd1d8c44379afb5ffe4072c09f9cf6594738e8ded4dd872d",
"subcharta/templates/service.yaml": "570389588fffdb7193ab265888d781f3d751f3a40362533344f9aa7bb93a8bb0",
"subchartb/templates/service.yaml": "5654e03d922e8ec49649b4bbda9dfc9e643b3b7c9c18b602cc7e26fd36a39c2a",
},
expectedError: "",
},
{
label: "Generate artifacts with overrides",
chartPath: chartDir,
valueFiles: []string{
filepath.Join(profileDir, "override_values.yaml"),
},
values: []string{
"service.externalPort=82",
},
//sha256 hash of the evaluated templates in each chart
expectedHashMap: map[string]string{
"testchart2/templates/service.yaml": "2bb96e791ecb6a3404bc5de3f6c4182aed881630269e2aa6766df38b0f852724",
"subcharta/templates/service.yaml": "570389588fffdb7193ab265888d781f3d751f3a40362533344f9aa7bb93a8bb0",
"subchartb/templates/service.yaml": "5654e03d922e8ec49649b4bbda9dfc9e643b3b7c9c18b602cc7e26fd36a39c2a",
},
expectedError: "",
},
}
h := sha256.New()
for _, testCase := range testCases {
t.Run(testCase.label, func(t *testing.T) {
tc := NewTemplateClient("1.12.3", "testnamespace", "testreleasename")
out, err := tc.GenerateKubernetesArtifacts(testCase.chartPath, testCase.valueFiles,
testCase.values)
if err != nil {
if testCase.expectedError == "" {
t.Fatalf("Got an error %s", err)
}
if strings.Contains(err.Error(), testCase.expectedError) == false {
t.Fatalf("Got unexpected error message %s", err)
}
} else {
//Compute the hash of returned data and compare
for _, v := range out {
f := v.FilePath
data, err := ioutil.ReadFile(f)
if err != nil {
t.Errorf("Unable to read file %s", v)
}
h.Write(data)
gotHash := fmt.Sprintf("%x", h.Sum(nil))
h.Reset()
//Find the right hash from expectedHashMap
expectedHash := ""
for k1, v1 := range testCase.expectedHashMap {
if strings.Contains(f, k1) == true {
expectedHash = v1
break
}
}
if gotHash != expectedHash {
t.Fatalf("Got unexpected hash for %s", f)
}
}
}
})
}
}
|
