fn test_array_of_floats() {
	// f64 array
	aa := [1.2, 3.4, 5.67]
	assert aa.str() == '[1.2, 3.4, 5.67]'
	assert '$aa' == '[1.2, 3.4, 5.67]'
	// f32 array
	bb := [f32(1.2), 3.4, 5.67]
	assert bb.str() == '[1.2, 3.4, 5.67]'
	assert '$bb' == '[1.2, 3.4, 5.67]'
}

fn test_array_of_bools() {
	aa := [true, false, true]
	assert aa.str() == '[true, false, true]'
	assert '$aa' == '[true, false, true]'
}

fn test_array_of_ints() {
	// int
	a1 := [11, 22, 33]
	assert a1.str() == '[11, 22, 33]'
	assert '$a1' == '[11, 22, 33]'
	// u32
	a2 := [u32(11), 22, 33]
	assert a2.str() == '[11, 22, 33]'
	assert '$a2' == '[11, 22, 33]'
	// i16
	b1 := [i16(11), 22, 33]
	assert b1.str() == '[11, 22, 33]'
	assert '$b1' == '[11, 22, 33]'
	// u16
	b2 := [u16(11), 22, 33]
	assert b2.str() == '[11, 22, 33]'
	assert '$b2' == '[11, 22, 33]'
	// i64
	c1 := [i64(11), 22, 33]
	assert c1.str() == '[11, 22, 33]'
	assert '$c1' == '[11, 22, 33]'
	// u64
	c2 := [u64(11), 22, 33]
	assert c2.str() == '[11, 22, 33]'
	assert '$c2' == '[11, 22, 33]'
}

fn test_array_of_runes() {
	aa := [`a`, `b`, `c`]
	assert aa.str() == '[`a`, `b`, `c`]'
	assert '$aa' == '[`a`, `b`, `c`]'
}

fn test_array_of_strings() {
	aa := ['aa', 'bb', 'cc']
	assert aa.str() == "['aa', 'bb', 'cc']"
	assert '$aa' == "['aa', 'bb', 'cc']"
}

fn test_map_of_ints() {
	aa := {
		'a': 1
		'b': 2
		'c': 3
	}
	assert aa.str() == "{'a': 1, 'b': 2, 'c': 3}"
	assert '$aa' == "{'a': 1, 'b': 2, 'c': 3}"
}

fn test_map_of_strings() {
	aa := {
		'a': '1'
		'b': '2'
		'c': '3'
	}
	assert aa.str() == "{'a': '1', 'b': '2', 'c': '3'}"
	assert '$aa' == "{'a': '1', 'b': '2', 'c': '3'}"
}

fn test_map_of_floats() {
	aa := {
		'a': 1.1
		'b': 2.2
		'c': 3.3
	}
	assert aa.str() == "{'a': 1.1, 'b': 2.2, 'c': 3.3}"
	assert '$aa' == "{'a': 1.1, 'b': 2.2, 'c': 3.3}"
}

fn test_map_of_runes() {
	aa := {
		'a': `a`
		'b': `b`
		'c': `c`
	}
	assert aa.str() == "{'a': `a`, 'b': `b`, 'c': `c`}"
	assert '$aa' == "{'a': `a`, 'b': `b`, 'c': `c`}"
}

fn test_map_of_bools() {
	aa := {
		'a': true
		'b': false
		'c': true
	}
	assert aa.str() == "{'a': true, 'b': false, 'c': true}"
	assert '$aa' == "{'a': true, 'b': false, 'c': true}"
}

fn test_fixed_array_of_floats() {
	// f64 array
	aa := [1.2, 3.4, 5.67]!
	assert aa.str() == '[1.2, 3.4, 5.67]'
	assert '$aa' == '[1.2, 3.4, 5.67]'
	// f32 array
	bb := [f32(1.2), 3.4, 5.67]!
	assert bb.str() == '[1.2, 3.4, 5.67]'
	assert '$bb' == '[1.2, 3.4, 5.67]'
}

fn test_fixed_array_of_bools() {
	aa := [true, false, true]!
	assert aa.str() == '[true, false, true]'
	assert '$aa' == '[true, false, true]'
}

fn test_fixed_array_of_ints() {
	// int
	a1 := [11, 22, 33]!
	assert a1.str() == '[11, 22, 33]'
	assert '$a1' == '[11, 22, 33]'
	// u32
	a2 := [u32(11), 22, 33]!
	assert a2.str() == '[11, 22, 33]'
	assert '$a2' == '[11, 22, 33]'
	// i16
	b1 := [i16(11), 22, 33]!
	assert b1.str() == '[11, 22, 33]'
	assert '$b1' == '[11, 22, 33]'
	// u16
	b2 := [u16(11), 22, 33]!
	assert b2.str() == '[11, 22, 33]'
	assert '$b2' == '[11, 22, 33]'
	// i64
	c1 := [i64(11), 22, 33]!
	assert c1.str() == '[11, 22, 33]'
	assert '$c1' == '[11, 22, 33]'
	// u64
	c2 := [u64(11), 22, 33]!
	assert c2.str() == '[11, 22, 33]'
	assert '$c2' == '[11, 22, 33]'
}

fn test_fixed_array_of_runes() {
	aa := [`a`, `b`, `c`]!
	assert aa.str() == '[`a`, `b`, `c`]'
	assert '$aa' == '[`a`, `b`, `c`]'
}

fn test_fixed_array_of_strings() {
	aa := ['aa', 'bb', 'cc']!
	assert aa.str() == "['aa', 'bb', 'cc']"
	assert '$aa' == "['aa', 'bb', 'cc']"
}

struct Wrapper {
	foo &string
}

fn test_struct_with_string_pointer() {
	s := 'test'
	w := Wrapper{&s}
	assert '$w' == "Wrapper{\n    foo: &'test'\n}"
	assert w.str() == "Wrapper{\n    foo: &'test'\n}"
}

struct Wrapper2 {
	foo &int
}

fn test_struct_with_int_pointer() {
	i := 5
	w := Wrapper2{&i}
	assert '$w' == 'Wrapper2{\n    foo: &5\n}'
	assert w.str() == 'Wrapper2{\n    foo: &5\n}'
}

struct Wrapper3 {
	foo &bool
}

fn test_struct_with_bool_pointer() {
	b := true
	w := Wrapper3{&b}
	assert '$w' == 'Wrapper3{\n    foo: &true\n}'
	assert w.str() == 'Wrapper3{\n    foo: &true\n}'
}

struct Foo {}

struct Wrapper4 {
	foo &Foo
}

fn test_struct_with_struct_pointer() {
	b := Foo{}
	w := Wrapper4{&b}
	assert '$w' == 'Wrapper4{\n    foo: &Foo{}\n}'
	assert w.str() == 'Wrapper4{\n    foo: &Foo{}\n}'
}

fn test_struct_with_nil() {
	w := Wrapper4{0}
	assert '$w' == 'Wrapper4{\n    foo: &nil\n}'
	assert w.str() == 'Wrapper4{\n    foo: &nil\n}'
}

struct Wrapper5 {
	foo &f32
}

fn test_struct_with_f32_pointer() {
	i := f32(5.1)
	w := Wrapper5{&i}
	assert '$w' == 'Wrapper5{\n    foo: &5.1\n}'
	assert w.str() == 'Wrapper5{\n    foo: &5.1\n}'
}

struct TestStruct {
	x int
}

struct ArrayWithStruct {
	foo []TestStruct
}

fn test_array_with_struct() {
	a := ArrayWithStruct{[TestStruct{}]}
	assert a.str() == 'ArrayWithStruct{\n    foo: [TestStruct{\n        x: 0\n    }]\n}'
	assert '$a' == 'ArrayWithStruct{\n    foo: [TestStruct{\n        x: 0\n    }]\n}'
}

struct MapWithStruct {
	foo map[string]TestStruct
}

fn test_map_with_struct() {
	a := MapWithStruct{{
		'test': TestStruct{}
	}}
	assert a.str() == "MapWithStruct{\n    foo: {'test': TestStruct{\n        x: 0\n    }}\n}"
	assert '$a' == "MapWithStruct{\n    foo: {'test': TestStruct{\n        x: 0\n    }}\n}"
}

struct ForGeneric {}

fn generic_fn_interpolation<T>(p T) string {
	return '$p'
}

fn generic_fn_str<T>(p T) string {
	return p.str()
}

fn test_generic_auto_str() {
	s := ForGeneric{}
	assert generic_fn_interpolation(s) == 'ForGeneric{}'
	assert generic_fn_str(s) == 'ForGeneric{}'
}

type Alias1 = int

fn test_alias_in_array() {
	t := [Alias1(1)]
	assert t.str() == '[1]'
	assert '$t' == '[1]'
}

type Alias2 = int

fn test_alias_in_fixed_array() {
	t := [Alias1(1)]!
	assert t.str() == '[1]'
	assert '$t' == '[1]'
}

fn test_alias_int() {
	a := Alias1(1)
	assert a.str() == '1'
	assert '$a' == '1'
}

type Alias3 = string

fn test_alias_string() {
	s := 'test'
	a := Alias3(s)
	assert a.str() == s
	assert '$a' == s
}

type TestAlias = TestStruct

fn test_alias_struct() {
	ts := TestStruct{}
	t := TestAlias(ts)
	assert t.str() == 'TestAlias($ts)'
	assert '$t' == 'TestAlias(TestStruct{\n    x: 0\n})'
}

struct GenericStruct<T> {
	x T
}

fn test_generic_struct() {
	x := GenericStruct<TestStruct>{}
	assert '$x' == 'GenericStruct<TestStruct>{\n    x: TestStruct{\n        x: 0\n    }\n}'
	assert x.str() == 'GenericStruct<TestStruct>{\n    x: TestStruct{\n        x: 0\n    }\n}'
}

struct MultiGenericStruct<T, X> {
	t T
	x X
}

fn test_multi_generic_struct() {
	x := MultiGenericStruct<TestStruct,TestStruct>{}
	assert '$x' == 'MultiGenericStruct<TestStruct, TestStruct>{\n    t: TestStruct{\n        x: 0\n    }\n    x: TestStruct{\n        x: 0\n    }\n}'
	assert x.str() == 'MultiGenericStruct<TestStruct, TestStruct>{\n    t: TestStruct{\n        x: 0\n    }\n    x: TestStruct{\n        x: 0\n    }\n}'
}

fn create_option_err() ?string {
	return error('this is an error')
}

fn test_option_err() {
	assert '$create_option_err()' == 'Option(error: this is an error)'
}

fn create_option_none() ?string {
	return none
}

fn test_option_none() {
	assert '$create_option_none()' == 'Option(error: none)'
}

fn create_option_string() ?string {
	return 'this is a string'
}

fn test_option_string() {
	assert '$create_option_string()' == "Option('this is a string')"
}

fn create_option_int() ?int {
	return 5
}

fn test_option_int() {
	assert '$create_option_int()' == 'Option(5)'
}

fn create_option_array() ?[]int {
	return [1, 2, 3]
}

fn test_option_array() {
	assert '$create_option_array()' == 'Option([1, 2, 3])'
}

fn create_option_struct() ?TestStruct {
	return TestStruct{}
}

fn test_option_struct() {
	assert '$create_option_struct()' == 'Option(TestStruct{\n    x: 0\n})'
}

// struct OptionWrapper {
// 	x ?TestStruct
// }

// fn test_struct_with_option() {
// 	w := OptionWrapper{}
// 	assert '$w' == 'OptionWrapper{\n    x: Option(error: \'\')\n}'
// }

/*
TODO: doesn't work yet
struct OptionWrapperInt {
	x ?int
}

fn test_struct_with_option() {
	w := OptionWrapperInt{}
	assert '$w' == 'OptionWrapperInt{\n    x: Option(error: \'\')\n}'
}
*/

struct One {
	value string = 'one'
}

struct Two {
	value string = 'two'
}

fn mr_int_int() (int, int) {
	return 111, 222
}

fn mr_one_two() (One, Two) {
	one := One{}
	two := Two{}
	return one, two
}

fn mr_fn_fn() (fn (int), fn (int)) {
	a := fn (a int) {}
	b := fn (a int) {}
	return a, b
}

fn test_multi_return() {
	assert '$mr_int_int()' == '(111, 222)'
	assert '$mr_fn_fn()' == '(fn (int), fn (int))'
	assert '$mr_one_two()' == "(One{
    value: 'one'
}, Two{
    value: 'two'
})"
	anon_a := fn () (One, Two) {
		one := One{}
		two := Two{}
		return one, two
	}
	assert '$anon_a()' == "(One{
    value: 'one'
}, Two{
    value: 'two'
})"
}

fn test_fixed_array_of_function() {
	a := [println, println]!
	println(a)
	assert '$a' == '[fn (string), fn (string)]'
}