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// Copyright 2019 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package compare
import (
"fmt"
"sort"
"strings"
"testing"
"github.com/stretchr/testify/require"
)
func TestCompare(t *testing.T) {
assert := require.New(t)
for i, test := range []struct {
a string
b string
}{
{"a", "a"},
{"A", "a"},
{"Ab", "Ac"},
{"az", "Za"},
{"C", "D"},
{"B", "a"},
{"C", ""},
{"", ""},
{"αβδC", "ΑΒΔD"},
{"αβδC", "ΑΒΔ"},
{"αβδ", "ΑΒΔD"},
{"αβδ", "ΑΒΔ"},
{"β", "δ"},
{"好", strings.ToLower("好")},
} {
expect := strings.Compare(strings.ToLower(test.a), strings.ToLower(test.b))
got := compareFold(test.a, test.b)
assert.Equal(expect, got, fmt.Sprintf("test %d: %d", i, expect))
}
}
func TestLexicographicSort(t *testing.T) {
assert := require.New(t)
s := []string{"b", "Bz", "ba", "A", "Ba", "ba"}
sort.Slice(s, func(i, j int) bool {
return LessStrings(s[i], s[j])
})
assert.Equal([]string{"A", "b", "Ba", "ba", "ba", "Bz"}, s)
}
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