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
5package precis
6
7import (
8	"testing"
9	"unicode"
10	"unicode/utf8"
11
12	"golang.org/x/text/runes"
13	"golang.org/x/text/unicode/rangetable"
14)
15
16type tableTest struct {
17	rangeTable *unicode.RangeTable
18	prop       property
19}
20
21var 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.
35func 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(0x30000, 0x30101, 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}
70