tailscale/words/words_test.go

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// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package words
import (
"strings"
"testing"
)
func TestWords(t *testing.T) {
test := func(t *testing.T, words []string) {
t.Helper()
if len(words) == 0 {
t.Error("no words")
}
seen := map[string]bool{}
for _, w := range words {
if seen[w] {
t.Errorf("dup word %q", w)
}
seen[w] = true
if w == "" || strings.IndexFunc(w, nonASCIILower) != -1 {
t.Errorf("malformed word %q", w)
}
}
}
t.Run("tails", func(t *testing.T) { test(t, Tails()) })
t.Run("scales", func(t *testing.T) { test(t, Scales()) })
t.Logf("%v tails * %v scales = %v beautiful combinations", len(Tails()), len(Scales()), len(Tails())*len(Scales()))
}
func nonASCIILower(r rune) bool {
if 'a' <= r && r <= 'z' {
return false
}
return true
}