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map: add map['aa']+='str' test

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yuyi 2020-06-28 19:34:59 +08:00 • committed by GitHub
parent 9814497b91
commit 05de780219
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7
vlib/builtin/map_test.v
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@ -283,3 +283,10 @@ fn test_map_in_directly() {
assert v == 1
}
}
fn test_plus_assign_string() {
mut m := {'one': ''}
m['one'] += '1'
assert m.len == 1
assert m['one'] == '1'
}