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#![allow(unused)]
macro_rules! tests {
($kind: literal in mod $module: ident $($unwrap: ident)?) => {
mod $module {
macro_rules! suite {
(mod $inner_mod: ident => $iter: ident) => {
mod $inner_mod {
use bauer::Builder;
fn field_collector(iter: impl $iter<Item = u32>) -> u32 {
iter.sum()
}
#[derive(Builder)]
#[builder(kind = $kind)]
struct Foo {
#[builder(repeat = u32, collector = field_collector)]
field: u32,
}
#[test]
fn sum() {
let foo: Foo = Foo::builder().field(1).field(2).field(3).build();
assert_eq!(foo.field, 1 + 2 + 3);
}
fn field_counter(iter: impl $iter<Item = u32>) -> usize {
iter.count()
}
#[derive(Builder)]
#[builder(kind = $kind)]
struct Count {
#[builder(repeat = u32, collector = field_counter)]
field: usize,
}
#[test]
fn count() {
let foo: Count = Count::builder().field(1).field(2).field(3).build();
assert_eq!(foo.field, 3);
}
#[derive(Builder)]
#[builder(kind = $kind)]
struct UpperBound {
#[builder(repeat = u32, repeat_n = ..5, collector = field_counter)]
field: usize,
}
#[test]
fn count_upper_bound() {
let foo: UpperBound = UpperBound::builder()
.field(1)
.field(2)
.field(3)
.build()
$(.$unwrap())?;
assert_eq!(foo.field, 3);
}
#[derive(Builder)]
#[builder(kind = $kind)]
struct Exact {
#[builder(repeat = u32, repeat_n = 5, collector = field_counter)]
field: usize,
}
#[test]
fn count_exact() {
let foo: Exact = Exact::builder()
.field(1)
.field(2)
.field(3)
.field(4)
.field(5)
.build()
$(.$unwrap())?;
assert_eq!(foo.field, 5);
}
#[derive(Builder)]
#[builder(kind = $kind)]
struct LowerBound {
#[builder(repeat = u32, repeat_n = 2.., collector = field_counter)]
field: usize,
}
#[test]
fn count_lower_bound() {
let foo: LowerBound = LowerBound::builder()
.field(1)
.field(2)
.field(3)
.build()
$(.$unwrap())?;
assert_eq!(foo.field, 3);
}
#[derive(Builder)]
#[builder(kind = $kind)]
struct ClosedRange {
#[builder(repeat = u32, repeat_n = 2..5, collector = field_counter)]
field: usize,
}
#[test]
fn count_closed_range() {
let foo: ClosedRange = ClosedRange::builder()
.field(1)
.field(2)
.field(3)
.build()
$(.$unwrap())?;
assert_eq!(foo.field, 3);
}
mod generic {
mod unbounded {
use bauer::Builder;
fn generic_collector<T>(iter: impl ExactSizeIterator<Item = T>) -> usize {
iter.len()
}
#[derive(Builder)]
#[builder(kind = $kind)]
struct U32Collector {
#[builder(repeat = u32, repeat_n = 2..5, collector = generic_collector)]
field: usize,
}
#[test]
fn unbounded_u32() {
let foo: U32Collector = U32Collector::builder()
.field(1)
.field(2)
.field(3)
.build()
$(.$unwrap())?;
assert_eq!(foo.field, 3);
}
#[derive(Builder)]
#[builder(kind = $kind)]
struct StrCollector {
#[builder(repeat = String, into, repeat_n = 2..5, collector = generic_collector)]
field: usize,
}
#[test]
fn unbounded_str() {
let foo: StrCollector = StrCollector::builder()
.field("h")
.field("h")
.field("h")
.build()
$(.$unwrap())?;
assert_eq!(foo.field, 3);
}
}
mod bounded {
use bauer::Builder;
fn to_string_collector<T: ToString>(iter: impl ExactSizeIterator<Item = T>) -> String {
iter.map(|x| x.to_string()).collect()
}
#[derive(Builder)]
#[builder(kind = $kind)]
struct U32Collector {
#[builder(repeat = u32, repeat_n = 2..5, collector = to_string_collector)]
field: String,
}
#[test]
fn u32() {
let foo: U32Collector = U32Collector::builder()
.field(1)
.field(2)
.field(3)
.build()
$(.$unwrap())?;
assert_eq!(foo.field, "123");
}
#[derive(Builder)]
#[builder(kind = $kind)]
struct StrCollector {
#[builder(repeat = String, into, repeat_n = 2..5, collector = to_string_collector)]
field: String,
}
#[test]
fn str() {
let foo: StrCollector = StrCollector::builder()
.field("h")
.field("i")
.field("j")
.build()
$(.$unwrap())?;
assert_eq!(foo.field, "hij");
}
}
}
}
};
}
suite!(mod iterator => Iterator);
suite!(mod exact_size_iterator => ExactSizeIterator);
}
};
}
tests!("borrowed" in mod borrowed unwrap);
tests!("owned" in mod owned unwrap);
tests!("type-state" in mod type_state);