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|
package utf8
import (
"fmt"
"testing"
)
func TestGenCharBlocks_WellFormed(t *testing.T) {
cBlk := func(from []byte, to []byte) *CharBlock {
return &CharBlock{
From: from,
To: to,
}
}
seq := func(b ...byte) []byte {
return b
}
tests := []struct {
from rune
to rune
blocks []*CharBlock
}{
{
from: '\u0000',
to: '\u007f',
blocks: []*CharBlock{
cBlk(seq(0x00), seq(0x7f)),
},
},
{
from: '\u0080',
to: '\u07ff',
blocks: []*CharBlock{
cBlk(seq(0xc2, 0x80), seq(0xdf, 0xbf)),
},
},
{
from: '\u0800',
to: '\u0fff',
blocks: []*CharBlock{
cBlk(seq(0xe0, 0xa0, 0x80), seq(0xe0, 0xbf, 0xbf)),
},
},
{
from: '\u1000',
to: '\ucfff',
blocks: []*CharBlock{
cBlk(seq(0xe1, 0x80, 0x80), seq(0xec, 0xbf, 0xbf)),
},
},
{
from: '\ud000',
to: '\ud7ff',
blocks: []*CharBlock{
cBlk(seq(0xed, 0x80, 0x80), seq(0xed, 0x9f, 0xbf)),
},
},
{
from: '\ue000',
to: '\uffff',
blocks: []*CharBlock{
cBlk(seq(0xee, 0x80, 0x80), seq(0xef, 0xbf, 0xbf)),
},
},
{
from: '\U00010000',
to: '\U0003ffff',
blocks: []*CharBlock{
cBlk(seq(0xf0, 0x90, 0x80, 0x80), seq(0xf0, 0xbf, 0xbf, 0xbf)),
},
},
{
from: '\U00040000',
to: '\U000fffff',
blocks: []*CharBlock{
cBlk(seq(0xf1, 0x80, 0x80, 0x80), seq(0xf3, 0xbf, 0xbf, 0xbf)),
},
},
{
from: '\U00100000',
to: '\U0010ffff',
blocks: []*CharBlock{
cBlk(seq(0xf4, 0x80, 0x80, 0x80), seq(0xf4, 0x8f, 0xbf, 0xbf)),
},
},
{
from: '\u0000',
to: '\U0010ffff',
blocks: []*CharBlock{
cBlk(seq(0x00), seq(0x7f)),
cBlk(seq(0xc2, 0x80), seq(0xdf, 0xbf)),
cBlk(seq(0xe0, 0xa0, 0x80), seq(0xe0, 0xbf, 0xbf)),
cBlk(seq(0xe1, 0x80, 0x80), seq(0xec, 0xbf, 0xbf)),
cBlk(seq(0xed, 0x80, 0x80), seq(0xed, 0x9f, 0xbf)),
cBlk(seq(0xee, 0x80, 0x80), seq(0xef, 0xbf, 0xbf)),
cBlk(seq(0xf0, 0x90, 0x80, 0x80), seq(0xf0, 0xbf, 0xbf, 0xbf)),
cBlk(seq(0xf1, 0x80, 0x80, 0x80), seq(0xf3, 0xbf, 0xbf, 0xbf)),
cBlk(seq(0xf4, 0x80, 0x80, 0x80), seq(0xf4, 0x8f, 0xbf, 0xbf)),
},
},
}
for _, tt := range tests {
t.Run(fmt.Sprintf("%v..%v", tt.from, tt.to), func(t *testing.T) {
blks, err := GenCharBlocks(tt.from, tt.to)
if err != nil {
t.Fatal(err)
}
if len(blks) != len(tt.blocks) {
t.Fatalf("unexpected character block: want: %+v, got: %+v", tt.blocks, blks)
}
for i, blk := range blks {
if len(blk.From) != len(tt.blocks[i].From) || len(blk.To) != len(tt.blocks[i].To) {
t.Fatalf("unexpected character block: want: %+v, got: %+v", tt.blocks, blks)
}
for j := 0; j < len(blk.From); j++ {
if blk.From[j] != tt.blocks[i].From[j] || blk.To[j] != tt.blocks[i].To[j] {
t.Fatalf("unexpected character block: want: %+v, got: %+v", tt.blocks, blks)
}
}
}
})
}
}
func TestGenCharBlocks_IllFormed(t *testing.T) {
tests := []struct {
from rune
to rune
}{
{
// from > to
from: '\u0001',
to: '\u0000',
},
{
from: -1, // <U+0000
to: '\u0000',
},
{
from: '\u0000',
to: -1, // <U+0000
},
{
from: 0x110000, // >U+10FFFF
to: '\u0000',
},
{
from: '\u0000',
to: 0x110000, // >U+10FFFF
},
{
from: 0xd800, // U+D800 (surrogate code point)
to: '\ue000',
},
{
from: 0xdfff, // U+DFFF (surrogate code point)
to: '\ue000',
},
{
from: '\ucfff',
to: 0xd800, // U+D800 (surrogate code point)
},
{
from: '\ucfff',
to: 0xdfff, // U+DFFF (surrogate code point)
},
}
for _, tt := range tests {
t.Run(fmt.Sprintf("%v..%v", tt.from, tt.to), func(t *testing.T) {
blks, err := GenCharBlocks(tt.from, tt.to)
if err == nil {
t.Fatal("expected error didn't occur")
}
if blks != nil {
t.Fatal("character blocks must be nil")
}
})
}
}
|
