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
|
// Copyright © 2019 The Homeport Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package term_test
import (
"bytes"
"io"
"os"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/gonvenience/term"
)
func WithCustomEnvVars(envVars map[string]string, f func()) {
var tmp = make(map[string]string, len(envVars))
for key, value := range envVars {
tmp[key] = os.Getenv(key)
os.Setenv(key, value)
}
defer func() {
for key, value := range tmp {
os.Setenv(key, value)
}
}()
f()
}
func CaptureStdout(f func()) string {
r, w, err := os.Pipe()
Expect(err).ToNot(HaveOccurred())
tmp := os.Stdout
defer func() {
os.Stdout = tmp
}()
os.Stdout = w
f()
w.Close()
var buf bytes.Buffer
_, err = io.Copy(&buf, r)
Expect(err).ToNot(HaveOccurred())
return buf.String()
}
var _ = Describe("term package", func() {
Context("detection functions that base on environment variables", func() {
It("should return that it is a dumb terminal, if the environment is set to dumb", func() {
WithCustomEnvVars(map[string]string{"TERM": "dumb"}, func() {
Expect(IsDumbTerminal()).To(BeTrue())
})
})
It("should detect truecolor support", func() {
WithCustomEnvVars(map[string]string{"COLORTERM": "truecolor"}, func() {
Expect(IsTrueColor()).To(BeTrue())
})
WithCustomEnvVars(map[string]string{"COLORTERM": "24bit"}, func() {
Expect(IsTrueColor()).To(BeTrue())
})
WithCustomEnvVars(map[string]string{"COLORTERM": "foobar"}, func() {
Expect(IsTrueColor()).To(BeFalse())
})
WithCustomEnvVars(map[string]string{"COLORTERM": ""}, func() {
Expect(IsTrueColor()).To(BeFalse())
})
})
})
Context("Concourse/Garden specific checks", func() {
It("should at least not panic when trying to detect the Garden init process", func() {
// Please note: Not sure why, but if one would run this test case
// in Concourse, it would fail. So, please do not.
Expect(IsGardenContainer()).To(BeFalse())
})
})
Context("cursor hide and show convenience", func() {
It("should print the right hide sequence to the Stdout", func() {
Expect(CaptureStdout(HideCursor)).To(Equal("\x1b[?25l"))
})
It("should print the right show sequence to the Stdout", func() {
Expect(CaptureStdout(ShowCursor)).To(Equal("\x1b[?25h"))
})
})
})
|
