golang.org/x/text@v0.14.0/cases/fold_test.go (about)

     1  // Copyright 2016 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package cases
     6  
     7  import (
     8  	"testing"
     9  
    10  	"golang.org/x/text/internal/testtext"
    11  )
    12  
    13  var foldTestCases = []string{
    14  	"βß\u13f8",        // "βssᏰ"
    15  	"ab\u13fc\uab7aꭰ", // abᏴᎪᎠ
    16  	"affifflast",           // affifflast
    17  	"Iİiı\u0345",      // ii̇iıι
    18  	"µµΜΜςσΣΣ",        // μμμμσσσσ
    19  }
    20  
    21  func TestFold(t *testing.T) {
    22  	for _, tc := range foldTestCases {
    23  		testEntry := func(name string, c Caser, m func(r rune) string) {
    24  			want := ""
    25  			for _, r := range tc {
    26  				want += m(r)
    27  			}
    28  			if got := c.String(tc); got != want {
    29  				t.Errorf("%s(%s) = %+q; want %+q", name, tc, got, want)
    30  			}
    31  			dst := make([]byte, 256) // big enough to hold any result
    32  			src := []byte(tc)
    33  			v := testtext.AllocsPerRun(20, func() {
    34  				c.Transform(dst, src, true)
    35  			})
    36  			if v > 0 {
    37  				t.Errorf("%s(%s): number of allocs was %f; want 0", name, tc, v)
    38  			}
    39  		}
    40  		testEntry("FullFold", Fold(), func(r rune) string {
    41  			return runeFoldData(r).full
    42  		})
    43  		// TODO:
    44  		// testEntry("SimpleFold", Fold(Compact), func(r rune) string {
    45  		// 	return runeFoldData(r).simple
    46  		// })
    47  		// testEntry("SpecialFold", Fold(Turkic), func(r rune) string {
    48  		// 	return runeFoldData(r).special
    49  		// })
    50  	}
    51  }