v/vlib/builtin/map_test.v

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// import time
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struct User {
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name string
}
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struct A {
mut:
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m map[string]int
users map[string]User
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}
fn (a mut A) set(key string, val int) {
a.m[key] = val
}
fn test_map() {
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mut m := map[string]int
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assert m.size == 0
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m['hi'] = 80
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m['hello'] = 101
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assert m['hi'] == 80
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assert m['hello'] == 101
assert m.size == 2
assert 'hi' in m
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mut sum := 0
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// Test `for in`
for _, val in m {
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sum += val
}
assert sum == 80 + 101
// Test `.keys()`
keys := m.keys()
assert keys.len == 2
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assert 'hi' in keys
assert 'hello' in keys
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m.delete('hi')
assert m.size == 1
m.delete('aloha')
assert m.size == 1
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assert m['hi'] == 0
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assert m.keys().len == 1
assert m.keys()[0] == 'hello'
////
mut users := map[string]User
users['1'] = User{'Peter'}
peter := users['1']
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assert peter.name == 'Peter'
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mut a := A{
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m: map[string]int
users: map[string]User
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}
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a.users['Bob'] = User{'Bob'}
q := a.users['Bob']
assert q.name == 'Bob'
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a.m['one'] = 1
a.set('two', 2)
assert a.m['one'] == 1
assert a.m['two'] == 2
}
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fn test_map_init() {
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m := { 'one': 1, 'two': 2 }
assert m['one'] == 1
assert m['two'] == 2
assert m['three'] == 0
}
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fn test_string_map() {
//m := map[string]Fn
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}
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fn test_large_map() {
//ticks := time.ticks()
mut nums := map[string]int
n := 30 * 1000
for i in 0..n {
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key := i.str()
nums[key] = i
}
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assert nums['1'] == 1
assert nums['999'] == 999
assert nums['1000000'] == 0
//println(time.ticks() - ticks)
}
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fn test_various_map_value() {
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mut m1 := map[string]int
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m1['test'] = 1
assert m1['test'] == 1
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mut m2 := map[string]string
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m2['test'] = 'test'
assert m2['test'] == 'test'
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mut m3 := map[string]i8
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m3['test'] = i8(0)
assert m3['test'] == i8(0)
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mut m4 := map[string]i16
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m4['test'] = i16(0)
assert m4['test'] == i16(0)
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mut m7 := map[string]u16
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m7['test'] = u16(0)
assert m7['test'] == u16(0)
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mut m8 := map[string]u32
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m8['test'] = u32(0)
assert m8['test'] == u32(0)
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mut m9 := map[string]bool
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m9['test'] = true
assert m9['test'] == true
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mut m10 := map[string]byte
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m10['test'] = byte(0)
assert m10['test'] == byte(0)
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mut m11 := map[string]f32
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m11['test'] = f32(0.0)
assert m11['test'] == f32(0.0)
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mut m12 := map[string]f64
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m12['test'] = f64(0.0)
assert m12['test'] == f64(0.0)
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mut m13 := map[string]rune
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m13['test'] = rune(0)
assert m13['test'] == rune(0)
mut m14 := map[string]voidptr
m14['test'] = voidptr(0)
assert m14['test'] == voidptr(0)
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mut m15 := map[string]byteptr
m15['test'] = byteptr(0)
assert m15['test'] == byteptr(0)
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mut m16 := map[string]i64
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m16['test'] = i64(0)
assert m16['test'] == i64(0)
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mut m17 := map[string]u64
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m17['test'] = u64(0)
assert m17['test'] == u64(0)
mut m18 := map[string]&int
m18['test'] = &int(0)
assert m18['test'] == &int(0)
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}
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fn test_string_arr() {
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mut m := map[string][]string
m['a'] = ['one', 'two']
assert m['a'].len == 2
assert m['a'][0] == 'one'
assert m['a'][1] == 'two'
}
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fn mut_map(m mut map[string]int) {
m['a'] = 10
}
fn test_mut_arg() {
mut m := map[string]int
mut_map(mut m)
a := m['a']
assert a == 10
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}
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fn test_delete() {
mut m := map[string]int
m['one'] = 1
m['two'] = 2
println(m['two']) // => "2"
m.delete('two')
println(m['two'].str()) // => 0
assert ('two' in m) == false
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println('two' in m) // => true, on Linux and Windows <-- wrong !
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}
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/*
fn test_ref() {
m := { 'one': 1 }
// TODO "cannot take the address of m['one']"
mut one := &m['one']
one++
println(*one)
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}
*/
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fn test_delete_size() {
arr := ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
mut m := map[string]int
for _ in 0..10 {
for i in 0..10 {
m[arr[i]] = i
}
assert(m.size == 10)
println(m.size)
for i in 0..10 {
m.delete(arr[i])
}
}
}