/usr/share/gocode/src/golang.org/x/text/collate/build/trie_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 | // Copyright 2012 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 build
import (
"bytes"
"fmt"
"testing"
)
// We take the smallest, largest and an arbitrary value for each
// of the UTF-8 sequence lengths.
var testRunes = []rune{
0x01, 0x0C, 0x7F, // 1-byte sequences
0x80, 0x100, 0x7FF, // 2-byte sequences
0x800, 0x999, 0xFFFF, // 3-byte sequences
0x10000, 0x10101, 0x10FFFF, // 4-byte sequences
0x200, 0x201, 0x202, 0x210, 0x215, // five entries in one sparse block
}
func makeTestTrie(t *testing.T) trie {
n := newNode()
for i, r := range testRunes {
n.insert(r, uint32(i))
}
idx := newTrieBuilder()
idx.addTrie(n)
tr, err := idx.generate()
if err != nil {
t.Errorf(err.Error())
}
return *tr
}
func TestGenerateTrie(t *testing.T) {
testdata := makeTestTrie(t)
buf := &bytes.Buffer{}
testdata.printArrays(buf, "test")
fmt.Fprintf(buf, "var testTrie = ")
testdata.printStruct(buf, &trieHandle{19, 0}, "test")
if output != buf.String() {
t.Error("output differs")
}
}
var output = `// testValues: 832 entries, 3328 bytes
// Block 2 is the null block.
var testValues = [832]uint32 {
// Block 0x0, offset 0x0
0x000c:0x00000001,
// Block 0x1, offset 0x40
0x007f:0x00000002,
// Block 0x2, offset 0x80
// Block 0x3, offset 0xc0
0x00c0:0x00000003,
// Block 0x4, offset 0x100
0x0100:0x00000004,
// Block 0x5, offset 0x140
0x0140:0x0000000c, 0x0141:0x0000000d, 0x0142:0x0000000e,
0x0150:0x0000000f,
0x0155:0x00000010,
// Block 0x6, offset 0x180
0x01bf:0x00000005,
// Block 0x7, offset 0x1c0
0x01c0:0x00000006,
// Block 0x8, offset 0x200
0x0219:0x00000007,
// Block 0x9, offset 0x240
0x027f:0x00000008,
// Block 0xa, offset 0x280
0x0280:0x00000009,
// Block 0xb, offset 0x2c0
0x02c1:0x0000000a,
// Block 0xc, offset 0x300
0x033f:0x0000000b,
}
// testLookup: 640 entries, 1280 bytes
// Block 0 is the null block.
var testLookup = [640]uint16 {
// Block 0x0, offset 0x0
// Block 0x1, offset 0x40
// Block 0x2, offset 0x80
// Block 0x3, offset 0xc0
0x0e0:0x05, 0x0e6:0x06,
// Block 0x4, offset 0x100
0x13f:0x07,
// Block 0x5, offset 0x140
0x140:0x08, 0x144:0x09,
// Block 0x6, offset 0x180
0x190:0x03,
// Block 0x7, offset 0x1c0
0x1ff:0x0a,
// Block 0x8, offset 0x200
0x20f:0x05,
// Block 0x9, offset 0x240
0x242:0x01, 0x244:0x02,
0x248:0x03,
0x25f:0x04,
0x260:0x01,
0x26f:0x02,
0x270:0x04, 0x274:0x06,
}
var testTrie = trie{ testLookup[1216:], testValues[0:], testLookup[:], testValues[:]}`
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