65 lines
1.1 KiB
V
65 lines
1.1 KiB
V
import strings
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fn test_sb() {
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mut sb := strings.Builder{}
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sb.write('hi')
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sb.write('!')
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sb.write('hello')
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assert sb.len == 8
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sb_end := sb.str()
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assert sb_end == 'hi!hello'
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assert sb.len == 0
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///
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sb = strings.new_builder(10)
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sb.write('a')
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sb.write('b')
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assert sb.len == 2
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assert sb.str() == 'ab'
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///
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$if !windows {
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// TODO msvc bug
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sb = strings.new_builder(10)
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sb.write('123456')
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last_2 := sb.cut_last(2)
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assert last_2 == '56'
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final_sb := sb.str()
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assert final_sb == '1234'
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}
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}
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const (
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maxn = 100000
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)
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fn test_big_sb() {
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mut sb := strings.new_builder(100)
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mut sb2 := strings.new_builder(10000)
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for i in 0..maxn {
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sb.writeln(i.str())
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sb2.write('+')
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}
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s := sb.str()
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lines := s.split_into_lines()
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assert lines.len == maxn
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assert lines[0] == '0'
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assert lines[1] == '1'
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assert lines[777] == '777'
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assert lines[98765] == '98765'
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println(sb2.len)
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assert sb2.len == maxn
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}
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fn test_byte_write() {
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mut sb := strings.new_builder(100)
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temp_str := "byte testing"
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mut count := 0
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for word in temp_str {
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sb.write_b(word)
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count++
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assert count == sb.len
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}
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sb_final := sb.str()
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assert sb_final == temp_str
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}
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