diff options
Diffstat (limited to 'tests/unit/urubu/utf8.go')
| -rw-r--r-- | tests/unit/urubu/utf8.go | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/tests/unit/urubu/utf8.go b/tests/unit/urubu/utf8.go new file mode 100644 index 0000000..2dc8093 --- /dev/null +++ b/tests/unit/urubu/utf8.go @@ -0,0 +1,181 @@ +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") + } + }) + } +} |