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all: change optional to result in most of the libraries (#16123)
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@ -358,11 +358,11 @@ fn test_shuffle_partial() {
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mut a := [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
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mut b := a.clone()
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rand.shuffle(mut a, start: 4)?
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rand.shuffle(mut a, start: 4)!
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assert a[..4] == b[..4]
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a = b.clone()
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rand.shuffle(mut a, start: 3, end: 7)?
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rand.shuffle(mut a, start: 3, end: 7)!
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assert a[..3] == b[..3]
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assert a[7..] == b[7..]
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}
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@ -386,7 +386,7 @@ fn test_choose() {
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lengths := [1, 3, 4, 5, 6, 7]
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a := ['one', 'two', 'three', 'four', 'five', 'six', 'seven']
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for length in lengths {
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b := rand.choose(a, length)?
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b := rand.choose(a, length)!
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assert b.len == length
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for element in b {
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assert element in a
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@ -415,7 +415,7 @@ fn test_sample() {
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fn test_element1() {
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a := ['one', 'two', 'four', 'five', 'six', 'seven']
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for _ in 0 .. 30 {
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e := rand.element(a)?
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e := rand.element(a)!
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assert e in a
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assert 'three' != e
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}
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@ -423,7 +423,7 @@ fn test_element1() {
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fn test_element2() {
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for _ in 0 .. 30 {
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e := rand.element([1, 2, 5, 6, 7, 8])?
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e := rand.element([1, 2, 5, 6, 7, 8])!
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assert e in [1, 2, 5, 6, 7, 8]
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assert 3 != e
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assert 4 != e
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