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// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package runes
import (
"testing"
"unicode/utf8"
)
func TestNewBuffer_ASCII(t *testing.T) {
data := "hello world!"
rb := NewBuffer(data)
if got, want := rb.Len(), utf8.RuneCountInString(data); got != want {
t.Errorf("length mismatch: got %d, want %d", got, want)
}
if got, want := rb.Slice(0, rb.Len()), data; got != want {
t.Errorf("slice mismatch: got %q, want %q", got, want)
}
if got, want := rb.Get(8), rune('r'); got != want {
t.Errorf("rune mismatch: got %U, want %U", got, want)
}
if _, ok := rb.(*asciiBuffer); !ok {
t.Errorf("type mismatch: got %T, want %T", rb, &asciiBuffer{})
}
}
func TestNewBuffer_Basic(t *testing.T) {
data := "hello w\u04E7rld!"
rb := NewBuffer(data)
if got, want := rb.Len(), utf8.RuneCountInString(data); got != want {
t.Errorf("length mismatch: got %d, want %d", got, want)
}
if got, want := rb.Slice(0, rb.Len()), data; got != want {
t.Errorf("slice mismatch: got %q, want %q", got, want)
}
if got, want := rb.Get(8), rune('r'); got != want {
t.Errorf("rune mismatch: got %U, want %U", got, want)
}
if _, ok := rb.(*basicBuffer); !ok {
t.Errorf("type mismatch: got %T, want %T", rb, &basicBuffer{})
}
}
func TestNewBuffer_Supplemental(t *testing.T) {
data := "hello w\U0001F642rld!"
rb := NewBuffer(data)
if got, want := rb.Len(), utf8.RuneCountInString(data); got != want {
t.Errorf("length mismatch: got %d, want %d", got, want)
}
if got, want := rb.Slice(0, rb.Len()), data; got != want {
t.Errorf("slice mismatch: got %q, want %q", got, want)
}
if got, want := rb.Get(8), rune('r'); got != want {
t.Errorf("rune mismatch: got %U, want %U", got, want)
}
if _, ok := rb.(*supplementalBuffer); !ok {
t.Errorf("type mismatch: got %T, want %T", rb, &supplementalBuffer{})
}
}
func TestNewBuffer_All(t *testing.T) {
data := "hell\u04E7 w\U0001F642rld!"
rb := NewBuffer(data)
if got, want := rb.Len(), utf8.RuneCountInString(data); got != want {
t.Errorf("length mismatch: got %d, want %d", got, want)
}
if got, want := rb.Slice(0, rb.Len()), data; got != want {
t.Errorf("slice mismatch: got %q, want %q", got, want)
}
if got, want := rb.Get(8), rune('r'); got != want {
t.Errorf("rune mismatch: got %U, want %U", got, want)
}
if _, ok := rb.(*supplementalBuffer); !ok {
t.Errorf("type mismatch: got %T, want %T", rb, &supplementalBuffer{})
}
}
func TestNewBuffer_Empty(t *testing.T) {
data := ""
rb := NewBuffer(data)
if got, want := rb.Len(), utf8.RuneCountInString(data); got != want {
t.Errorf("length mismatch: got %d, want %d", got, want)
}
if got, want := rb.Slice(0, rb.Len()), data; got != want {
t.Errorf("slice mismatch: got %q, want %q", got, want)
}
if _, ok := rb.(*emptyBuffer); !ok {
t.Errorf("type mismatch: got %T, want %T", rb, &emptyBuffer{})
}
}
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