119 lines
2.7 KiB
Go
119 lines
2.7 KiB
Go
// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package utf16_test
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import (
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"fmt"
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"reflect"
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"testing"
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"unicode"
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. "utf16"
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)
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type encodeTest struct {
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in []int
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out []uint16
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}
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var encodeTests = []encodeTest{
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{[]int{1, 2, 3, 4}, []uint16{1, 2, 3, 4}},
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{[]int{0xffff, 0x10000, 0x10001, 0x12345, 0x10ffff},
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[]uint16{0xffff, 0xd800, 0xdc00, 0xd800, 0xdc01, 0xd808, 0xdf45, 0xdbff, 0xdfff}},
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{[]int{'a', 'b', 0xd7ff, 0xd800, 0xdfff, 0xe000, 0x110000, -1},
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[]uint16{'a', 'b', 0xd7ff, 0xfffd, 0xfffd, 0xe000, 0xfffd, 0xfffd}},
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}
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func TestEncode(t *testing.T) {
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for _, tt := range encodeTests {
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out := Encode(tt.in)
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if !reflect.DeepEqual(out, tt.out) {
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t.Errorf("Encode(%v) = %v; want %v", hex(tt.in), hex16(out), hex16(tt.out))
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}
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}
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}
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func TestEncodeRune(t *testing.T) {
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for i, tt := range encodeTests {
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j := 0
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for _, r := range tt.in {
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r1, r2 := EncodeRune(r)
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if r < 0x10000 || r > unicode.MaxRune {
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if j >= len(tt.out) {
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t.Errorf("#%d: ran out of tt.out", i)
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break
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}
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if r1 != unicode.ReplacementChar || r2 != unicode.ReplacementChar {
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t.Errorf("EncodeRune(%#x) = %#x, %#x; want 0xfffd, 0xfffd", r, r1, r2)
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}
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j++
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} else {
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if j+1 >= len(tt.out) {
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t.Errorf("#%d: ran out of tt.out", i)
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break
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}
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if r1 != int(tt.out[j]) || r2 != int(tt.out[j+1]) {
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t.Errorf("EncodeRune(%#x) = %#x, %#x; want %#x, %#x", r, r1, r2, tt.out[j], tt.out[j+1])
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}
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j += 2
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dec := DecodeRune(r1, r2)
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if dec != r {
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t.Errorf("DecodeRune(%#x, %#x) = %#x; want %#x", r1, r2, dec, r)
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}
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}
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}
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if j != len(tt.out) {
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t.Errorf("#%d: EncodeRune didn't generate enough output", i)
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}
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}
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}
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type decodeTest struct {
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in []uint16
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out []int
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}
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var decodeTests = []decodeTest{
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{[]uint16{1, 2, 3, 4}, []int{1, 2, 3, 4}},
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{[]uint16{0xffff, 0xd800, 0xdc00, 0xd800, 0xdc01, 0xd808, 0xdf45, 0xdbff, 0xdfff},
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[]int{0xffff, 0x10000, 0x10001, 0x12345, 0x10ffff}},
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{[]uint16{0xd800, 'a'}, []int{0xfffd, 'a'}},
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{[]uint16{0xdfff}, []int{0xfffd}},
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}
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func TestDecode(t *testing.T) {
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for _, tt := range decodeTests {
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out := Decode(tt.in)
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if !reflect.DeepEqual(out, tt.out) {
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t.Errorf("Decode(%v) = %v; want %v", hex16(tt.in), hex(out), hex(tt.out))
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}
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}
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}
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type hex []int
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func (h hex) Format(f fmt.State, c int) {
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fmt.Fprint(f, "[")
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for i, v := range h {
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if i > 0 {
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fmt.Fprint(f, " ")
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}
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fmt.Fprintf(f, "%x", v)
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}
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fmt.Fprint(f, "]")
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}
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type hex16 []uint16
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func (h hex16) Format(f fmt.State, c int) {
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fmt.Fprint(f, "[")
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for i, v := range h {
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if i > 0 {
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fmt.Fprint(f, " ")
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}
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fmt.Fprintf(f, "%x", v)
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}
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fmt.Fprint(f, "]")
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}
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