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v/vlib/strconv/atoi_test.v

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import strconv
fn test_atoi() {
assert strconv.atoi('16')! == 16
assert strconv.atoi('+16')! == 16
assert strconv.atoi('-16')! == -16
// invalid strings
if x := strconv.atoi('str') {
println(x)
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assert false
} else {
assert true
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}
if x := strconv.atoi('string_longer_than_10_chars') {
println(x)
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assert false
} else {
assert true
}
if x := strconv.atoi('') {
println(x)
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assert false
} else {
assert true
}
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}
fn test_parse_int() {
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// Different bases
assert strconv.parse_int('16', 16, 0)! == 0x16
assert strconv.parse_int('16', 8, 0)! == 0o16
assert strconv.parse_int('11', 2, 0)! == 3
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// Different bit sizes
assert strconv.parse_int('127', 10, 8)! == 127
assert strconv.parse_int('128', 10, 8)! == 127
assert strconv.parse_int('32767', 10, 16)! == 32767
assert strconv.parse_int('32768', 10, 16)! == 32767
assert strconv.parse_int('2147483647', 10, 32)! == 2147483647
assert strconv.parse_int('2147483648', 10, 32)! == 2147483647
assert strconv.parse_int('9223372036854775807', 10, 64)! == 9223372036854775807
assert strconv.parse_int('9223372036854775808', 10, 64)! == 9223372036854775807
assert strconv.parse_int('baobab', 36, 64)? == 683058467
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// Invalid bit sizes
if x := strconv.parse_int('123', 10, -1) {
println(x)
assert false
} else {
assert true
}
if x := strconv.parse_int('123', 10, 65) {
println(x)
assert false
} else {
assert true
}
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}
fn test_common_parse_uint2() {
mut result, mut error := strconv.common_parse_uint2('1', 10, 8)
assert result == 1
assert error == 0
result, error = strconv.common_parse_uint2('123', 10, 8)
assert result == 123
assert error == 0
result, error = strconv.common_parse_uint2('123', 10, 65)
assert result == 0
assert error == -2
result, error = strconv.common_parse_uint2('123', 10, -1)
assert result == 0
assert error == -2
result, error = strconv.common_parse_uint2('', 10, 8)
assert result == 0
assert error == 1
result, error = strconv.common_parse_uint2('1a', 10, 8)
assert result == 1
assert error == 2
result, error = strconv.common_parse_uint2('12a', 10, 8)
assert result == 12
assert error == 3
result, error = strconv.common_parse_uint2('123a', 10, 8)
assert result == 123
assert error == 4
}
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fn test_common_parse_uint2_compatibility() {
test_list := [
'1234,1234',
'1_234,1234',
'1_2_34,1234',
'_12__34,1',
'12__34,1',
'_1234,1',
'1234_,1',
'0x1234,4660',
'0x_1234,4660',
'0x1_234,4660',
'0x1_2_3_4,4660',
'0_x1234,1',
'0x1234_,1',
'0o1234,668',
'0o_1234,668',
'0o1_234,668',
'0o1_2_3_4,668',
'0_o1234,1',
'0o1234_,1',
'0b111,7',
'0b_111,7',
'0b1_11,7',
'0b1_1_1,7',
'0_b111,1',
'0b111_,1',
'0xa,10',
'0xA,10',
'0xf,15',
'0xf,15',
'0_xf,1',
'0x_0_0_f_,1',
'0x_0_0__f,1',
'0x_0_0_f,15',
]
for tst in test_list {
query := tst.split(',')
mut a0 := strconv.common_parse_uint(query[0], 0, 32, true, true) or { 1 }
// println("${a0} => ${query[1]}")
assert a0.str() == query[1]
}
}