go env_test 源码
golang env_test 代码
文件路径：/src/os/exec/env_test.go
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package exec
import (
"reflect"
"testing"
)
func TestDedupEnv(t *testing.T) {
tests := []struct {
noCase bool
in []string
want []string
}{
{
noCase: true,
in: []string{"k1=v1", "k2=v2", "K1=v3"},
want: []string{"k2=v2", "K1=v3"},
},
{
noCase: false,
in: []string{"k1=v1", "K1=V2", "k1=v3"},
want: []string{"K1=V2", "k1=v3"},
},
{
in: []string{"=a", "=b", "foo", "bar"},
want: []string{"=b", "foo", "bar"},
},
{
// #49886: preserve weird Windows keys with leading "=" signs.
noCase: true,
in: []string{`=C:=C:\golang`, `=D:=D:\tmp`, `=D:=D:\`},
want: []string{`=C:=C:\golang`, `=D:=D:\`},
},
{
// #52436: preserve invalid key-value entries (for now).
// (Maybe filter them out or error out on them at some point.)
in: []string{"dodgy", "entries"},
want: []string{"dodgy", "entries"},
},
}
for _, tt := range tests {
got := dedupEnvCase(tt.noCase, tt.in)
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("Dedup(%v, %q) = %q; want %q", tt.noCase, tt.in, got, tt.want)
}
}
}
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