golang.org/x/text@v0.14.0/secure/precis/tables_test.go (about)

     1  // Copyright 2015 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 precis
     6  
     7  import (
     8  	"testing"
     9  	"unicode"
    10  	"unicode/utf8"
    11  
    12  	"golang.org/x/text/runes"
    13  	"golang.org/x/text/unicode/rangetable"
    14  )
    15  
    16  type tableTest struct {
    17  	rangeTable *unicode.RangeTable
    18  	prop       property
    19  }
    20  
    21  var exceptions = runes.Predicate(func(r rune) bool {
    22  	switch uint32(r) {
    23  	case 0x00DF, 0x03C2, 0x06FD, 0x06FE, 0x0F0B, 0x3007, 0x00B7, 0x0375, 0x05F3,
    24  		0x05F4, 0x30FB, 0x0660, 0x0661, 0x0662, 0x0663, 0x0664, 0x0665, 0x0666,
    25  		0x0667, 0x0668, 0x0669, 0x06F0, 0x06F1, 0x06F2, 0x06F3, 0x06F4, 0x06F5,
    26  		0x06F6, 0x06F7, 0x06F8, 0x06F9, 0x0640, 0x07FA, 0x302E, 0x302F, 0x3031,
    27  		0x3032, 0x3033, 0x3034, 0x3035, 0x303B:
    28  		return true
    29  	default:
    30  		return false
    31  	}
    32  })
    33  
    34  // Ensure that certain properties were generated correctly.
    35  func TestTable(t *testing.T) {
    36  	tests := []tableTest{
    37  		tableTest{
    38  			rangetable.Merge(
    39  				unicode.Lt, unicode.Nl, unicode.No, // Other letter digits
    40  				unicode.Me,             // Modifiers
    41  				unicode.Zs,             // Spaces
    42  				unicode.So,             // Symbols
    43  				unicode.Pi, unicode.Pf, // Punctuation
    44  			),
    45  			idDisOrFreePVal,
    46  		},
    47  		tableTest{
    48  			rangetable.New(0xA0000, 0xA0101, 0xDFFFF),
    49  			unassigned,
    50  		},
    51  	}
    52  
    53  	assigned := rangetable.Assigned(UnicodeVersion)
    54  
    55  	for _, test := range tests {
    56  		rangetable.Visit(test.rangeTable, func(r rune) {
    57  			if !unicode.In(r, assigned) {
    58  				return
    59  			}
    60  			b := make([]byte, 4)
    61  			n := utf8.EncodeRune(b, r)
    62  			trieval, _ := dpTrie.lookup(b[:n])
    63  			p := entry(trieval).property()
    64  			if p != test.prop && !exceptions.Contains(r) {
    65  				t.Errorf("%U: got %+x; want %+x", r, test.prop, p)
    66  			}
    67  		})
    68  	}
    69  }