v/vlib/builtin/string_test.v

662 lines
13 KiB
V
Raw Blame History

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

// Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
fn test_add() {
mut a := 'a'
a += 'b'
assert a==('ab')
a = 'a'
for i := 1; i < 1000; i++ {
a += 'b'
}
assert a.len == 1000
assert a.ends_with('bbbbb')
a += '123'
assert a.ends_with('3')
mut foo := Foo{0, 'hi'}
foo.str += '!'
assert foo.str == 'hi!'
}
fn test_ends_with() {
a := 'browser.v'
assert a.ends_with('.v')
}
fn test_between() {
s := 'hello [man] how you doing'
assert s.find_between('[', ']') == 'man'
}
fn test_compare() {
a := 'Music'
b := 'src'
assert b>=(a)
}
fn test_lt() {
a := ''
b := 'a'
c := 'a'
d := 'b'
e := 'aa'
f := 'ab'
assert a < (b)
assert !(b < c)
assert c < (d)
assert !(d < e)
assert c < (e)
assert e < (f)
}
fn test_ge() {
a := 'aa'
b := 'aa'
c := 'ab'
d := 'abc'
e := 'aaa'
assert b >= (a)
assert c >= (b)
assert d >= (c)
assert !(c >= d)
assert e >= (a)
}
fn test_compare_strings() {
a := 'aa'
b := 'aa'
c := 'ab'
d := 'abc'
e := 'aaa'
assert compare_strings(a, b) == 0
assert compare_strings(b, c) == -1
assert compare_strings(c, d) == -1
assert compare_strings(d, e) == 1
assert compare_strings(a, e) == -1
assert compare_strings(e, a) == 1
}
fn test_sort() {
mut vals := [
'arr', 'an', 'a', 'any'
]
len := vals.len
vals.sort()
assert len == vals.len
assert vals[0] == 'a'
assert vals[1] == 'an'
assert vals[2] == 'any'
assert vals[3] == 'arr'
}
fn test_split_nth() {
a := "1,2,3"
assert (a.split(',').len == 3)
assert (a.split_nth(',', -1).len == 3)
assert (a.split_nth(',', 0).len == 3)
assert (a.split_nth(',', 1).len == 1)
assert (a.split_nth(',', 2).len == 2)
assert (a.split_nth(',', 10).len == 3)
b := "1::2::3"
assert (b.split('::').len == 3)
assert (b.split_nth('::', -1).len == 3)
assert (b.split_nth('::', 0).len == 3)
assert (b.split_nth('::', 1).len == 1)
assert (b.split_nth('::', 2).len == 2)
assert (b.split_nth('::', 10).len == 3)
c := "ABCDEF"
assert (c.split('').len == 6)
assert (c.split_nth('', 3).len == 3)
assert (c.split_nth('BC', -1).len == 2)
d := ","
assert (d.split(',').len == 2)
assert (d.split_nth('', 3).len == 1)
assert (d.split_nth(',', -1).len == 2)
assert (d.split_nth(',', 3).len == 2)
e := ",,,0,,,,,a,,b,"
// assert (e.split(',,').len == 5)
// assert (e.split_nth(',,', 3).len == 2)
assert (e.split_nth(',', -1).len == 12)
assert (e.split_nth(',', 3).len == 3)
}
fn test_split_nth_values() {
line := 'CMD=eprintln(phase=1)'
a0 := line.split_nth('=', 0)
assert a0.len == 3
assert a0[0] == 'CMD'
assert a0[1] == 'eprintln(phase'
assert a0[2] == '1)'
a1 := line.split_nth('=', 1)
assert a1.len == 1
assert a1[0] == 'CMD=eprintln(phase=1)'
a2 := line.split_nth('=', 2)
assert a2.len == 2
assert a2[0] == 'CMD'
assert a2[1] == 'eprintln(phase=1)'
a3 := line.split_nth('=', 3)
assert a3.len == 3
assert a3[0] == 'CMD'
assert a3[1] == 'eprintln(phase'
assert a3[2] == '1)'
a4 := line.split_nth('=', 4)
assert a4.len == 3
assert a4[0] == 'CMD'
assert a4[1] == 'eprintln(phase'
assert a4[2] == '1)'
}
fn test_split() {
mut s := 'volt/twitch.v:34'
mut vals := s.split(':')
assert vals.len == 2
assert vals[0] == 'volt/twitch.v'
assert vals[1] == '34'
// /////////
s = '2018-01-01z13:01:02'
vals = s.split('z')
assert vals.len == 2
assert vals[0] =='2018-01-01'
assert vals[1] == '13:01:02'
// //////////
s = '4627a862c3dec29fb3182a06b8965e0025759e18___1530207969___blue'
vals = s.split('___')
assert vals.len == 3
assert vals[0]== '4627a862c3dec29fb3182a06b8965e0025759e18'
assert vals[1]=='1530207969'
assert vals[2]== 'blue'
// /////////
s = 'lalala'
vals = s.split('a')
assert vals.len == 4
assert vals[0] == 'l'
assert vals[1] == 'l'
assert vals[2] == 'l'
assert vals[3] == ''
// /////////
s = 'awesome'
a := s.split('')
assert a.len == 7
assert a[0] == 'a'
assert a[1] == 'w'
assert a[2] == 'e'
assert a[3] == 's'
assert a[4] == 'o'
assert a[5] == 'm'
assert a[6] == 'e'
}
fn test_trim_space() {
a := ' a '
assert a.trim_space() == 'a'
code := '
fn main() {
println(2)
}
'
code_clean := 'fn main() {
println(2)
}'
assert code.trim_space() == code_clean
}
fn test_join() {
mut strings := [ 'a', 'b', 'c' ]
mut s := strings.join(' ')
assert s == 'a b c'
strings = ['one
two ',
'three!
four!']
s = strings.join(' ')
assert s.contains('one') && s.contains('two ') && s.contains('four')
}
fn test_clone() {
mut a := 'a'
a += 'a'
a += 'a'
b := a
c := a.clone()
assert c == a
assert c == 'aaa'
assert b == 'aaa'
}
fn test_replace() {
a := 'hello man!'
mut b := a.replace('man', 'world')
assert b==('hello world!')
b = b.replace('!', '')
assert b==('hello world')
b = b.replace('h', 'H')
assert b==('Hello world')
b = b.replace('foo', 'bar')
assert b==('Hello world')
s := 'hey man how are you'
assert s.replace('man ', '') == 'hey how are you'
lol := 'lol lol lol'
assert lol.replace('lol', 'LOL') == 'LOL LOL LOL'
b = 'oneBtwoBBthree'
assert b.replace('B', '') == 'onetwothree'
b = '*charptr'
assert b.replace('charptr', 'byteptr') == '*byteptr'
c :='abc'
assert c.replace('','-') == c
v :='a b c d'
assert v.replace(' ',' ') == 'a b c d'
}
fn test_replace_each() {
s := 'hello man man :)'
q := s.replace_each([
'man', 'dude',
'hello', 'hey'
])
assert q == 'hey dude dude :)'
bb := '[b]bold[/b] [code]code[/code]'
assert bb.replace_each([
'[b]', '<b>',
'[/b]', '</b>',
'[code]', '<code>',
'[/code]', '</code>'
]) == '<b>bold</b> <code>code</code>'
bb2 := '[b]cool[/b]'
assert bb2.replace_each([
'[b]', '<b>',
'[/b]', '</b>',
]) == '<b>cool</b>'
}
fn test_itoa() {
num := 777
assert num.str() == '777'
big := 7779998
assert big.str() == '7779998'
a := 3
assert a.str() == '3'
b := 5555
assert b.str() == '5555'
zero := 0
assert zero.str() == '0'
neg := -7
assert neg.str() == '-7'
}
fn test_reassign() {
a := 'hi'
mut b := a
b += '!'
assert a == 'hi'
assert b == 'hi!'
}
fn test_runes() {
s := 'привет'
assert s.len == 12
s2 := 'privet'
assert s2.len == 6
u := s.ustring()
assert u.len == 6
assert s2.substr(1, 4).len == 3
assert s2.substr(1, 4) == 'riv'
assert s2[1..4].len == 3
assert s2[1..4] == 'riv'
assert s2[..4].len == 4
assert s2[..4] == 'priv'
assert s2[2..].len == 4
assert s2[2..] == 'ivet'
assert u.substr(1, 4).len == 6
assert u.substr(1, 4) == 'рив'
assert s2.substr(1, 2) == 'r'
assert u.substr(1, 2) == 'р'
assert s2.ustring().at(1) == 'r'
assert u.at(1) == 'р'
first := u.at(0)
last := u.at(u.len - 1)
assert first.len == 2
assert last.len == 2
}
fn test_lower() {
mut s := 'A'
assert s.to_lower() == 'a'
assert s.to_lower().len == 1
s = 'HELLO'
assert s.to_lower() == 'hello'
assert s.to_lower().len == 5
s = 'Aloha'
assert s.to_lower() == 'aloha'
s = 'Have A nice Day!'
assert s.to_lower() == 'have a nice day!'
s = 'hi'
assert s.to_lower() == 'hi'
}
fn test_upper() {
mut s := 'a'
assert s.to_upper() == 'A'
assert s.to_upper().len == 1
s = 'hello'
assert s.to_upper() == 'HELLO'
assert s.to_upper().len == 5
s = 'Aloha'
assert s.to_upper() == 'ALOHA'
s = 'have a nice day!'
assert s.to_upper() == 'HAVE A NICE DAY!'
s = 'hi'
assert s.to_upper() == 'HI'
}
fn test_left_right() {
s := 'ALOHA'
assert s.left(3) == 'ALO'
assert s[3..] == 'HA'
u := s.ustring()
assert u.left(3) == 'ALO'
assert u.right(3) == 'HA'
}
fn test_contains() {
s := 'view.v'
assert s.contains('vi')
assert !s.contains('random')
}
fn test_arr_contains() {
a := ['a', 'b', 'c']
assert a.contains('b')
ints := [1, 2, 3]
assert ints.contains(2)
}
fn test_to_num() {
s := '7'
assert s.int() == 7
assert s.u64() == 7
f := '71.5 hasdf'
assert f.f32() == 71.5
b := 1.52345
mut a := '${b:.03f}'
assert a == '1.523'
num := 7
a = '${num:03d}'
vals := ['9']
assert vals[0].int() == 9
big := '93993993939322'
assert big.u64() == 93993993939322
assert big.i64() == 93993993939322
}
fn test_hash() {
s := '10000'
assert s.hash() == 46730161
s2 := '24640'
assert s2.hash() == 47778736
s3 := 'Content-Type'
assert s3.hash() == 949037134
s4 := 'bad_key'
assert s4.hash() == -346636507
s5 := '24640'
// From a map collision test
assert s5.hash() % ((1 << 20) -1) == s.hash() % ((1 << 20) -1)
assert s5.hash() % ((1 << 20) -1) == 592861
}
fn test_trim() {
assert 'banana'.trim('bna') == ''
assert 'abc'.trim('ac') == 'b'
assert 'aaabccc'.trim('ac') == 'b'
}
fn test_trim_left() {
mut s := 'module main'
assert s.trim_left(' ') == 'module main'
s = ' module main'
assert s.trim_left(' ') == 'module main'
// test cutset
s = 'banana'
assert s.trim_left('ba') == 'nana'
}
fn test_trim_right() {
mut s := 'module main'
assert s.trim_right(' ') == 'module main'
s = 'module main '
assert s.trim_right(' ') == 'module main'
// test cutset
s = 'banana'
assert s.trim_right('na') == 'b'
}
fn test_all_after() {
s := 'fn hello'
q := s.all_after('fn ')
assert q == 'hello'
}
fn test_reverse() {
s := 'hello'
assert s.reverse() == 'olleh'
t := ''
assert t.reverse() == t
}
struct Foo {
bar int
mut:
str string
}
fn (f Foo) baz() string {
return 'baz'
}
fn test_interpolation() {
num := 7
mut s := 'number=$num'
assert s == 'number=7'
foo := Foo{}
s = 'baz=${foo.baz()}'
assert s == 'baz=baz'
}
fn test_bytes_to_string() {
mut buf := calloc(10)
buf[0] = `h`
buf[1] = `e`
buf[2] = `l`
buf[3] = `l`
buf[4] = `o`
assert string(buf) == 'hello'
assert string(buf, 2) == 'he'
bytes := [`h`, `e`, `l`, `l`, `o`]
assert string(bytes, 5) == 'hello'
}
fn test_count() {
assert ''.count('') == 0
assert ''.count('a') == 0
assert 'a'.count('') == 0
assert 'aa'.count('a') == 2
assert 'aa'.count('aa') == 1
assert 'aabbaa'.count('aa') == 2
assert 'bbaabb'.count('aa') == 1
}
fn test_capitalize() {
mut s := 'hello'
assert s.capitalize() == 'Hello'
s = 'test'
assert s.capitalize() == 'Test'
s = 'i am ray'
assert s.capitalize() == 'I am ray'
}
fn test_title() {
s := 'hello world'
assert s.title() == 'Hello World'
s.to_upper()
assert s.title() == 'Hello World'
s.to_lower()
assert s.title() == 'Hello World'
}
fn test_for_loop() {
mut i := 0
s := 'abcd'
for c in s {
assert c == s[i]
i++
}
}
fn test_for_loop_two() {
s := 'abcd'
for i, c in s {
assert c == s[i]
}
}
fn test_quote() {
a := `'`
println("testing double quotes")
b := "hi"
assert b == 'hi'
assert a.str() == '\''
}
fn test_ustring_comparisons() {
assert ('hllô !'.ustring() == 'hllô !'.ustring()) == true
assert ('hllô !'.ustring() == 'hllô'.ustring()) == false
assert ('hllô !'.ustring() == 'hllo !'.ustring()) == false
assert ('hllô !'.ustring() != 'hllô !'.ustring()) == false
assert ('hllô !'.ustring() != 'hllô'.ustring()) == true
assert ('hllô'.ustring() < 'hllô!'.ustring()) == true
assert ('hllô'.ustring() < 'hllo'.ustring()) == false
assert ('hllo'.ustring() < 'hllô'.ustring()) == true
assert ('hllô'.ustring() <= 'hllô!'.ustring()) == true
assert ('hllô'.ustring() <= 'hllô'.ustring()) == true
assert ('hllô!'.ustring() <= 'hllô'.ustring()) == false
assert ('hllô!'.ustring() > 'hllô'.ustring()) == true
assert ('hllô'.ustring() > 'hllô'.ustring()) == false
assert ('hllô!'.ustring() >= 'hllô'.ustring()) == true
assert ('hllô'.ustring() >= 'hllô'.ustring()) == true
assert ('hllô'.ustring() >= 'hllô!'.ustring()) == false
}
fn test_ustring_count() {
a := 'hllô hllô '.ustring()
assert (a.count('l'.ustring())) == 4
assert (a.count(''.ustring())) == 2
assert (a.count('hllô'.ustring())) == 2
assert (a.count(''.ustring())) == 2
assert (a.count('a'.ustring())) == 0
}
fn test_repeat() {
s := 'V! '
assert s.repeat(5) == 'V! V! V! V! V! '
}
fn test_raw() {
raw := r'raw\nstring'
lines := raw.split('\n')
assert lines.len == 1
println('raw string: "$raw"')
}
fn test_raw_with_quotes() {
raw := r"some'" + r'"thing' // " should be escaped in the generated C code
assert raw[0] == `s`
assert raw[5] == `"`
assert raw[6] == `t`
}
fn test_escape() {
// TODO
//a := 10
//println("\"$a")
}
fn test_atoi() {
assert '234232'.int() == 234232
assert '-9009'.int() == -9009
assert '0'.int() == 0
for n in -10000 .. 100000 {
s := n.str()
assert s.int() == n
}
}
fn test_raw_inter() {
world := 'world'
println(world)
s := r'hello\n$world'
assert s == r'hello\n$world'
assert s.contains('$')
}
fn test_c_r() {
// This used to break because of r'' and c''
c := 42
println('$c')
r := 50
println('$r')
}
fn test_inter_before_comp_if() {
s := '123'
// This used to break ('123 $....')
$if linux {
println(s)
}
assert s == '123'
}
fn test_double_quote_inter() {
a := 1
b := 2
println("${a} ${b}")
assert "${a} ${b}" == "1 2"
assert '${a} ${b}' == "1 2"
}
fn test_split_into_lines() {
line_content := 'Line'
text_crlf := '${line_content}\r\n${line_content}\r\n${line_content}'
lines_crlf := text_crlf.split_into_lines()
assert lines_crlf.len == 3
for line in lines_crlf {
assert line == line_content
}
text_lf := '${line_content}\n${line_content}\n${line_content}'
lines_lf := text_lf.split_into_lines()
assert lines_lf.len == 3
for line in lines_lf {
assert line == line_content
}
}