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v/vlib/strings/strings_test.v

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import strings
fn test_repeat() {
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assert strings.repeat(`x`, 10) == 'xxxxxxxxxx'
assert strings.repeat(`a`, 1) == 'a'
assert strings.repeat(`a`, 0) == ''
}
fn test_repeat_string() {
assert strings.repeat_string('abc', 3) == 'abcabcabc'
assert strings.repeat_string('abc', 1) == 'abc'
assert strings.repeat_string('abc', 0) == ''
assert strings.repeat_string('', 200) == ''
}
const test_rune_and_byte = [
'xxx[ok1]xxx',
'xxx[[ok2]okok]',
'xxx[ok3[[[ok]okok]]]',
'yyy[ok4]',
'[]',
']',
'[',
'yyy[ok5][]zzz',
'yyy[xxx',
'xxx[xxx
xxx]',
]
const test_strings = [
'xxx/*ok1*/xxx',
'xxx/*/*ok2*/okok*/',
'xxx/*ok3/*/*/*ok*/okok*/*/*/',
'yyy/*ok4*/',
'/**/',
'*/',
'/*',
'yyy/*ok5*//**/zzz',
'yyy/*xxx',
'xxx/*xxx
xxx*/xxx',
]
const expected_rune_and_byte_outputs = [
'ok1',
'[ok2]okok',
'ok3[[[ok]okok]]',
'ok4',
'',
'',
'',
'ok5',
'',
'xxx
xxx',
]
const expected_string_outputs = [
'ok1',
'/*ok2*/okok',
'ok3/*/*/*ok*/okok*/*/',
'ok4',
'',
'',
'',
'ok5',
'',
'xxx
xxx',
]
fn test_find_between_pair_family() {
assert strings.find_between_pair_rune('xxokyy', ``, ``) == 'ok'
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assert strings.find_between_pair_u8('xx{ok}yy', `{`, `}`) == 'ok'
assert strings.find_between_pair_string('xx/*ok*/yy', '/*', '*/') == 'ok'
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assert strings.find_between_pair_u8('xx{ok}yy', `{`, `}`) == 'ok'
assert strings.find_between_pair_string('xxxxokyyyy', 'xxx', 'yyy') == 'xok'
for i, tstr in test_rune_and_byte {
e1 := strings.find_between_pair_rune(tstr, `[`, `]`)
e2 := expected_rune_and_byte_outputs[i]
assert '$e1' == '$e2'
}
for i, tstr in test_rune_and_byte {
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e1 := strings.find_between_pair_u8(tstr, `[`, `]`)
e2 := expected_rune_and_byte_outputs[i]
assert '$e1' == '$e2'
}
for i, tstr in test_strings {
e1 := strings.find_between_pair_string(tstr, '/*', '*/')
e2 := expected_string_outputs[i]
assert '$e1' == '$e2'
}
}