/usr/share/gocode/src/golang.org/x/text/internal/colltab/numeric_test.go is in golang-golang-x-text-dev 0.0~git20170627.0.6353ef0-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 | // Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package colltab
import (
"reflect"
"strings"
"testing"
"golang.org/x/text/internal/testtext"
)
const (
digSec = defaultSecondary
digTert = defaultTertiary
)
var tPlus3 = e(0, 50, digTert+3)
// numWeighter is a testWeighter used for testing numericWeighter.
var numWeighter = testWeighter{
"0": p(100),
"0": []Elem{e(100, digSec, digTert+1)}, // U+FF10 FULLWIDTH DIGIT ZERO
"₀": []Elem{e(100, digSec, digTert+5)}, // U+2080 SUBSCRIPT ZERO
"1": p(101),
// Allow non-primary collation elements to be inserted.
"١": append(p(101), tPlus3), // U+0661 ARABIC-INDIC DIGIT ONE
// Allow varying tertiary weight if the number is Nd.
"1": []Elem{e(101, digSec, digTert+1)}, // U+FF11 FULLWIDTH DIGIT ONE
"2": p(102),
// Allow non-primary collation elements to be inserted.
"٢": append(p(102), tPlus3), // U+0662 ARABIC-INDIC DIGIT TWO
// Varying tertiary weights should be ignored.
"2": []Elem{e(102, digSec, digTert+3)}, // U+FF12 FULLWIDTH DIGIT TWO
"3": p(103),
"4": p(104),
"5": p(105),
"6": p(106),
"7": p(107),
// Weights must be strictly monotonically increasing, but do not need to be
// consecutive.
"8": p(118),
"9": p(119),
// Allow non-primary collation elements to be inserted.
"٩": append(p(119), tPlus3), // U+0669 ARABIC-INDIC DIGIT NINE
// Varying tertiary weights should be ignored.
"9": []Elem{e(119, digSec, digTert+1)}, // U+FF19 FULLWIDTH DIGIT NINE
"₉": []Elem{e(119, digSec, digTert+5)}, // U+2089 SUBSCRIPT NINE
"a": p(5),
"b": p(6),
"c": p(8, 2),
"klm": p(99),
"nop": p(121),
"x": p(200),
"y": p(201),
}
func p(w ...int) (elems []Elem) {
for _, x := range w {
e, _ := MakeElem(x, digSec, digTert, 0)
elems = append(elems, e)
}
return elems
}
func TestNumericAppendNext(t *testing.T) {
for _, tt := range []struct {
in string
w []Elem
}{
{"a", p(5)},
{"klm", p(99)},
{"aa", p(5, 5)},
{"1", p(120, 1, 101)},
{"0", p(120, 0)},
{"01", p(120, 1, 101)},
{"0001", p(120, 1, 101)},
{"10", p(120, 2, 101, 100)},
{"99", p(120, 2, 119, 119)},
{"9999", p(120, 4, 119, 119, 119, 119)},
{"1a", p(120, 1, 101, 5)},
{"0b", p(120, 0, 6)},
{"01c", p(120, 1, 101, 8, 2)},
{"10x", p(120, 2, 101, 100, 200)},
{"99y", p(120, 2, 119, 119, 201)},
{"9999nop", p(120, 4, 119, 119, 119, 119, 121)},
// Allow follow-up collation elements if they have a zero non-primary.
{"١٢٩", []Elem{e(120), e(3), e(101), tPlus3, e(102), tPlus3, e(119), tPlus3}},
{
"129",
[]Elem{
e(120), e(3),
e(101, digSec, digTert+1),
e(102, digSec, digTert+3),
e(119, digSec, digTert+1),
},
},
// Ensure AppendNext* adds to the given buffer.
{"a10", p(5, 120, 2, 101, 100)},
} {
nw := NewNumericWeighter(numWeighter)
b := []byte(tt.in)
got := []Elem(nil)
for n, sz := 0, 0; n < len(b); {
got, sz = nw.AppendNext(got, b[n:])
n += sz
}
if !reflect.DeepEqual(got, tt.w) {
t.Errorf("AppendNext(%q) =\n%v; want\n%v", tt.in, got, tt.w)
}
got = nil
for n, sz := 0, 0; n < len(tt.in); {
got, sz = nw.AppendNextString(got, tt.in[n:])
n += sz
}
if !reflect.DeepEqual(got, tt.w) {
t.Errorf("AppendNextString(%q) =\n%v; want\n%v", tt.in, got, tt.w)
}
}
}
func TestNumericOverflow(t *testing.T) {
manyDigits := strings.Repeat("9", maxDigits+1) + "a"
nw := NewNumericWeighter(numWeighter)
got, n := nw.AppendNextString(nil, manyDigits)
if n != maxDigits {
t.Errorf("n: got %d; want %d", n, maxDigits)
}
if got[1].Primary() != maxDigits {
t.Errorf("primary(e[1]): got %d; want %d", n, maxDigits)
}
}
func TestNumericWeighterAlloc(t *testing.T) {
buf := make([]Elem, 100)
w := NewNumericWeighter(numWeighter)
s := "1234567890a"
nNormal := testtext.AllocsPerRun(3, func() { numWeighter.AppendNextString(buf, s) })
nNumeric := testtext.AllocsPerRun(3, func() { w.AppendNextString(buf, s) })
if n := nNumeric - nNormal; n > 0 {
t.Errorf("got %f; want 0", n)
}
}
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