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// +build go1.12
package tlsconfig
import (
"os"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestEnableTLS13(t *testing.T) {
tests := map[string]struct {
tlsMin string
tlsMax string
enableTLS13 bool
}{
"ask for minimum TLS 1.3": {tlsMin: "tls1.3", tlsMax: "", enableTLS13: true},
"ask for maximim TLS 1.3": {tlsMin: "", tlsMax: "tls1.3", enableTLS13: true},
"do not ask for TLS 1.3": {tlsMin: "tls1.2", tlsMax: "tls1.2", enableTLS13: false},
}
// Store original GODEBUG value
godebug := os.Getenv("GODEBUG")
for name, tc := range tests {
t.Run(name, func(t *testing.T) {
err := ValidateTLSVersions(tc.tlsMin, tc.tlsMax)
require.NoError(t, err)
if tc.enableTLS13 {
assert.Regexp(t, "tls13=1", os.Getenv("GODEBUG"))
} else {
assert.NotRegexp(t, "tls13=1", godebug)
}
})
// Restore original GODEBUG value
os.Setenv("GODEBUG", godebug)
}
}
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