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editor_test.go
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editor_test.go
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package repotools
import (
"os"
"strings"
"testing"
)
func TestGetEditorTool(t *testing.T) {
cases := map[string]struct {
SetupEnv func()
ExpectEditor string
ExpectErr string
}{
"default": {
ExpectEditor: defaultEditor,
},
"allowed visual": {
SetupEnv: func() {
os.Setenv("VISUAL", `vi`)
},
ExpectEditor: `vi`,
},
"allowed editor": {
SetupEnv: func() {
os.Setenv("EDITOR", `emacs`)
},
ExpectEditor: `emacs`,
},
"unknown visual": {
SetupEnv: func() {
os.Setenv("VISUAL", `unknownCmd`)
},
ExpectErr: `unknown editor "unknownCmd"`,
},
"unknown editor": {
SetupEnv: func() {
os.Setenv("EDITOR", `unknownCmd`)
},
ExpectErr: `unknown editor "unknownCmd"`,
},
}
for name, c := range cases {
t.Run(name, func(t *testing.T) {
origEnv := os.Environ()
os.Clearenv()
defer func(env []string) {
for _, kv := range env {
n := strings.SplitN(kv, "=", 2)
os.Setenv(n[0], n[1])
}
}(origEnv)
if c.SetupEnv != nil {
c.SetupEnv()
}
editor, err := GetEditorTool()
if len(c.ExpectErr) != 0 {
if err == nil {
t.Fatalf("expect error, got none")
}
if e, a := c.ExpectErr, err.Error(); !strings.Contains(a, e) {
t.Fatalf("expect error to contain %v, got %v", e, a)
}
return
}
if err != nil {
t.Fatalf("expect no error, got %v", err)
}
if e, a := c.ExpectEditor, editor; e != a {
t.Errorf("expect %v editor, got %v", e, a)
}
})
}
}