78 lines
1012 B
V
78 lines
1012 B
V
const (
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nums = [1, 2, 3]
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)
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fn test_for_char_in() {
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mut sum := 0
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for ch in nums {
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sum += ch
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}
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assert sum == 6
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}
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fn test_for_char_in_range() {
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mut sum := 0
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for ch in 0 .. nums.len {
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sum += nums[ch]
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}
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assert sum == 6
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}
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fn test_for_blank_in_range() {
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mut sum := 0
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for _ in 1 .. 3 {
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sum++
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}
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assert sum == 2
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}
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fn test_for_char_complex() {
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mut sum := 0
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for ch := 0; ch < nums.len; ch++ {
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sum += nums[ch]
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}
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assert sum == 6
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}
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fn test_for_char_in_string() {
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s := 'abcd'
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mut sum := 0
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for ch in s {
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sum += ch
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}
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assert sum == 394 // ascii codes of `a` + `b` + `c` + `d`
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}
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fn test_for_string_in_map() {
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m := {
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'a': 'b'
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'c': 'd'
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}
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mut acc := ''
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for k, v in m {
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acc += '$k: $v, '
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}
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assert acc == 'a: b, c: d, '
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mut m2 := {
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'a': 3
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'b': 4
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'c': 5
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}
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m2.delete('b')
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acc = ''
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for k, v in m2 {
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acc += '$k: $v, '
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}
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assert acc == 'a: 3, c: 5, '
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}
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fn test_mut_for() {
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mut vals := [1, 2, 3]
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for mut val in vals {
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(*val)++
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}
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assert vals == [2, 3, 4]
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println(vals)
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}
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