v/compiler/tests/match_test.v

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2019-08-26 23:39:11 +02:00
enum Color{
red, green, blue
}
fn test_match_integers() {
// a := 3
// mut b := 0
// match a {
// 2 => println('two')
// 3 => println('three')
// b = 3
// 4 => println('four')
// else => println('???')
// }
// assert b == 3
assert match 2 {
1 => {2}
2 => {3}
else => {5}
} == 3
assert match 0 {
1 => {2}
2 => {3}
else => 5
} == 5
assert match 1 {
else => {5}
} == 5
mut a := 0
match 2 {
0 => {a = 1}
1 => {a = 2}
else => {
a = 3
println('a is $a')
}
}
assert a == 3
a = 0
match 1 {
0 => {a = 1}
1 => {
a = 2
a = a + 2
a = a + 2
}
}
assert a == 6
a = 0
match 1 {
else => {
a = -2
}
}
assert a == -2
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}
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fn test_match_enums(){
mut b := Color.red
match b{
.red => {
b = .green
}
.green => {b = .blue}
else => {
println('b is ${b.str()}')
b = .red
}
}
assert b == .green
match b{
.red => {
b = .green
}
else => {
println('b is ${b.str()}')
b = .blue
}
}
assert b == .blue
}