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