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Copy pathline_array_test.go
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61 lines (46 loc) · 1.83 KB
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package buffer
import (
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
var unicode_txt = `An preost wes on leoden, Laȝamon was ihoten
He wes Leovenaðes sone -- liðe him be Drihten.
He wonede at Ernleȝe at æðelen are chirechen,
Uppen Sevarne staþe, sel þar him þuhte,
Onfest Radestone, þer he bock radde.`
var la *LineArray
func init() {
reader := strings.NewReader(unicode_txt)
la = NewLineArray(uint64(len(unicode_txt)), FFAuto, reader)
}
func TestSplit(t *testing.T) {
la.insert(Loc{17, 1}, []byte{'\n'})
assert.Equal(t, len(la.lines), 6)
sub1 := la.Substr(Loc{0, 1}, Loc{17, 1})
sub2 := la.Substr(Loc{0, 2}, Loc{30, 2})
assert.Equal(t, []byte("He wes Leovenaðes"), sub1)
assert.Equal(t, []byte(" sone -- liðe him be Drihten."), sub2)
}
func TestJoin(t *testing.T) {
la.remove(Loc{47, 1}, Loc{0, 2})
assert.Equal(t, len(la.lines), 5)
sub := la.Substr(Loc{0, 1}, Loc{47, 1})
bytes := la.Bytes()
assert.Equal(t, []byte("He wes Leovenaðes sone -- liðe him be Drihten."), sub)
assert.Equal(t, unicode_txt, string(bytes))
}
func TestInsert(t *testing.T) {
la.insert(Loc{20, 3}, []byte(" foobar"))
sub1 := la.Substr(Loc{0, 3}, Loc{50, 3})
assert.Equal(t, []byte("Uppen Sevarne staþe, foobar sel þar him þuhte,"), sub1)
la.insert(Loc{25, 2}, []byte("H̼̥̯͇͙̕͘͞e̸̦̞̠̣̰͙̼̥̦̼̖̬͕͕̰̯̫͇̕ĺ̜̠̩̯̯͙̼̭̠͕̮̞͜l̶͓̫̞̮͈͞ͅo̸͔͙̳̠͈̮̼̳͙̥̲͜͠"))
sub2 := la.Substr(Loc{0, 2}, Loc{60, 2})
assert.Equal(t, []byte("He wonede at Ernleȝe at æH̼̥̯͇͙̕͘͞e̸̦̞̠̣̰͙̼̥̦̼̖̬͕͕̰̯̫͇̕ĺ̜̠̩̯̯͙̼̭̠͕̮̞͜l̶͓̫̞̮͈͞ͅo̸͔͙̳̠͈̮̼̳͙̥̲͜͠ðelen are chirechen,"), sub2)
}
func TestRemove(t *testing.T) {
la.remove(Loc{20, 3}, Loc{27, 3})
la.remove(Loc{25, 2}, Loc{30, 2})
bytes := la.Bytes()
assert.Equal(t, unicode_txt, string(bytes))
}