v/vlib/builtin/map_test.v

import rand

const (
	strings = unique_strings(20000, 10)
)

fn unique_strings(arr_len int, str_len int) []string {
	mut arr := []string{}
	for arr.len < arr_len {
		str := rand.string(str_len)
		if str !in arr {
			arr << str
		}
	}
	return arr
}

fn test_get_and_set_many() {
	mut m := map[string]int{}
	for i, s in strings {
		m[s] = i
		assert m[s] == i
		assert m.len == i + 1
	}
	for i, s in strings {
		assert m[s] == i
	}
	assert m.len == strings.len
}

fn test_for_in_many() {
	mut m := map[string]int{}
	for i, s in strings {
		m[s] = i
	}
	for k, v in m {
		assert m[k] == v
	}
}

fn test_keys_many() {
	mut m := map[string]int{}
	for i, s in strings {
		m[s] = i
	}
	keys := m.keys()
	assert keys.len == strings.len
	assert keys.len == m.len
	assert keys == strings
}

fn test_deletes_many() {
	mut m := map[string]int{}
	for i, s in strings {
		m[s] = i
	}
	for i, s in strings {
		m.delete(s)
		assert m[s] == 0
		assert m.len == strings.len - (i + 1)
	}
	assert m.len == 0
	assert m.keys().len == 0
}

struct User {
mut:
	name string
}

struct Aaa {
mut:
	m     map[string]int
	users map[string]User
}

fn (mut a Aaa) set(key string, val int) {
	a.m[key] = val
}

fn test_map() {
	mut m := map[string]int{}
	assert m.len == 0
	m['hi'] = 80
	m['hello'] = 101
	assert m['hi'] == 80
	assert m['hello'] == 101
	assert m.len == 2
	assert 'hi' in m
	mut sum := 0
	// Test `for in`
	for _, val in m {
		sum += val
	}
	assert sum == 80 + 101
	// Test `.keys()`
	keys := m.keys()
	assert keys.len == 2
	assert 'hi' in keys
	assert 'hello' in keys
	m.delete('hi')
	assert m.len == 1
	m.delete('aloha')
	assert m.len == 1
	assert m['hi'] == 0
	assert m.keys().len == 1
	assert m.keys()[0] == 'hello'
	// //
	mut users := map[string]User{}
	users['1'] = User{'Peter'}
	peter := users['1']
	assert peter.name == 'Peter'
	mut a := Aaa{
		m: map[string]int{}
		users: map[string]User{}
	}
	a.users['Bob'] = User{'Bob'}
	q := a.users['Bob']
	assert q.name == 'Bob'
	// test struct field change
	a.users['Bob'].name = 'bob'
	q2 := a.users['Bob']
	assert q2.name == 'bob'
	a.m['one'] = 1
	a.set('two', 2)
	assert a.m['one'] == 1
	assert a.m['two'] == 2
}

fn test_map_init() {
	m := {
		'one': 1
		'two': 2
	}
	assert m['one'] == 1
	assert m['two'] == 2
	assert m['three'] == 0
}

fn test_string_map() {
	// m := map[string]Fn
}

fn test_large_map() {
	// ticks := time.ticks()
	mut nums := map[string]int{}
	n := 30 * 1000
	for i in 0 .. n {
		key := i.str()
		nums[key] = i
	}
	assert nums['1'] == 1
	assert nums['999'] == 999
	assert nums['1000000'] == 0
	// println(time.ticks() - ticks)
}

fn test_various_map_value() {
	mut m1 := map[string]int{}
	m1['test'] = 1
	assert m1['test'] == 1
	mut m2 := map[string]string{}
	m2['test'] = 'test'
	assert m2['test'] == 'test'
	mut m3 := map[string]i8{}
	m3['test'] = i8(0)
	assert m3['test'] == i8(0)
	mut m4 := map[string]i16{}
	m4['test'] = i16(0)
	assert m4['test'] == i16(0)
	mut m7 := map[string]u16{}
	m7['test'] = u16(0)
	assert m7['test'] == u16(0)
	mut m8 := map[string]u32{}
	m8['test'] = u32(0)
	assert m8['test'] == u32(0)
	mut m9 := map[string]bool{}
	m9['test'] = true
	assert m9['test'] == true
	mut m10 := map[string]byte{}
	m10['test'] = byte(0)
	assert m10['test'] == byte(0)
	mut m11 := map[string]f32{}
	m11['test'] = f32(0.0)
	assert m11['test'] == f32(0.0)
	mut m12 := map[string]f64{}
	m12['test'] = f64(0.0)
	assert m12['test'] == f64(0.0)
	// mut m13 := map[string]rune
	// m13['test'] = rune(0)
	// assert m13['test'] == rune(0)
	mut m14 := map[string]voidptr{}
	m14['test'] = voidptr(0)
	assert m14['test'] == voidptr(0)
	mut m15 := map[string]byteptr{}
	m15['test'] = byteptr(0)
	assert m15['test'] == byteptr(0)
	mut m16 := map[string]i64{}
	m16['test'] = i64(0)
	assert m16['test'] == i64(0)
	mut m17 := map[string]u64{}
	m17['test'] = u64(0)
	assert m17['test'] == u64(0)
	mut m18 := map[string]&int{}
	m18['test'] = &int(0)
	assert m18['test'] == &int(0)
}

fn test_string_arr() {
	mut m := map[string][]string{}
	m['a'] = ['one', 'two']
	assert m['a'].len == 2
	assert m['a'][0] == 'one'
	assert m['a'][1] == 'two'
}

fn mut_map(mut m 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
}

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
	println('two' in m) // => true, on Linux  and Windows  <-- wrong !
}

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.len == 10)
		println(m.len)
		for i in 0 .. 10 {
			m.delete(arr[i])
		}
	}
}

struct Mstruct1 {
pub mut:
	mymap map[string]int
}

struct Mstruct2 {
pub mut:
	mymap map[string]f64
}

struct Mstruct3 {
pub mut:
	mymap map[string]u16
}

fn test_map_assign() {
	mut a := map[string]f64{}
	mut b := map[string]int{}
	mut c := map[string]u16{}
	a = {
		'x': 12.4
		'y': 3
	}
	b = {
		'u': -13
		'v': 12
	}
	c = {
		's': u16(5)
		't': 3
	}
	_ := Mstruct1{{
		'p': 12
	}}
	_ := Mstruct2{{
		'q': 1.7
	}}
	_ := Mstruct3{{
		'r': u16(6)
		's': 5
	}}
}

fn test_postfix_op_directly() {
	mut a := map[string]int{}
	a['aaa']++
	assert a['aaa'] == 1
	a['aaa']++
	assert a['aaa'] == 2
	a['bbb']--
	assert a['bbb'] == -1
	a['bbb']--
	assert a['bbb'] == -2
}

fn test_map_push_directly() {
	mut a := map[string][]string{}
	a['aaa'] << ['a', 'b', 'c']
	assert a['aaa'].len == 3
	assert a['aaa'] == ['a', 'b', 'c']
}

fn test_assign_directly() {
	mut a := map[string]int{}
	a['aaa'] += 4
	assert a['aaa'] == 4
	a['aaa'] -= 2
	assert a['aaa'] == 2
}

fn test_map_in_directly() {
	for k, v in {
		'aa': 1
	} {
		assert k == 'aa'
		assert v == 1
	}
}

fn test_plus_assign_string() {
	mut m := {
		'one': ''
	}
	m['one'] += '1'
	assert m.len == 1
	assert m['one'] == '1'
}

fn test_map_keys_to_array() {
	m := {
		'a': 'b'
		'c': 'd'
	}
	mut arr := []string{}
	for k, _ in m {
		arr << k
	}
	sarr := arr.str()
	println(sarr)
	assert sarr == "['a', 'c']"
}

fn map_in_mut(mut m map[string]int) {
	if 'one' in m {
		m['one'] = 2
	}
}

fn test_map_in_mut() {
	mut m := {
		'one': 1
	}
	map_in_mut(mut m)
	assert m['one'] == 2
}

fn mut_map_with_relation_op_in_fn(mut m map[string]int) {
	if m['one'] == 1 {
		m['three'] = 3
	}
	if m['two'] != 1 {
		m['four'] = 4
	}
	if m['one'] > 0 {
		m['five'] = 5
	}
	if m['one'] < 2 {
		m['six'] = 6
	}
	if m['two'] >= 2 {
		m['seven'] = 7
	}
	if m['two'] <= 2 {
		m['eight'] = 8
	}
}

fn test_mut_map_with_relation_op_in_fn() {
	mut m := {
		'one': 1
		'two': 2
	}
	mut_map_with_relation_op_in_fn(mut m)
	assert 'three' in m
	assert 'four' in m
	assert 'five' in m
	assert 'six' in m
	assert 'seven' in m
	assert 'eight' in m
}

fn test_map_str_after_delete() {
	mut m := {
		'first': 1
		'second': 2
		'third': 3
	}
	osm := '$m'
	m.delete('second')
	nsm := '$m'
	println('m: $m')
	assert osm == "{'first': 1, 'second': 2, 'third': 3}"
	assert nsm == "{'first': 1, 'third': 3}"
}

fn test_modify_map_value() {
	mut m1 := {
		'foo': 3
		'bar': -7
	}
	m1['foo'] += 5
	m1['bar'] *= -2
	assert m1['foo'] == 8
	assert m1['bar'] == 14
}