import time struct User { name string } struct A { m map[string]int users map[string]User } fn (a mut A) set(key string, val int) { a.m[key] = val } fn test_map() { mut m := map[string]int assert m.size == 0 m['hi'] = 80 m['hello'] = 101 assert m['hi'] == 80 assert m['hello'] == 101 assert m.size == 2 assert 'hi' in m mut sum := 0 mut key_sum := '' // Test `for in` for key, val in m { sum += val key_sum += key } assert sum == 80 + 101 assert key_sum == 'hihello' // Test `.keys()` keys := m.keys() assert keys.len == 2 assert keys[0] == 'hi' assert keys[1] == 'hello' m.delete('hi') assert m.size == 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 := A{ m: map[string]int users: map[string]User } a.users['Bob'] = User{'Bob'} q := a.users['Bob'] assert q.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 := 0; i < N; i++ { 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 m5 := map[string]i32 m5['test'] = i32(0) assert m5['test'] == i32(0) mut m6 := map[string]u8 m6['test'] = u8(0) assert m6['test'] == u8(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) } 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' }