//! The following is a series of tests that check conversions between every combination of sample
//! types available within this crate.
//!
//! We assert that each sample type's minimum, maximum and centre are correctly converted to the
//! min, max and centre of every other available sample type.

/// Expands to an `assert_eq` for each pre-conversion and post-conversion pair.
///
/// Literals that must be wrapped by a custom sample type are wrapped using $T/$U::new_unchecked.
macro_rules! conv_cmp {
    ($fn_name:ident, $pre_conv:expr, $post_conv:expr) => {
        assert_eq!($fn_name($pre_conv), $post_conv);
    };
    ($fn_name:ident: $U:ident, $pre_conv:expr, $post_conv:expr) => {
        assert_eq!($fn_name($pre_conv), $U::new_unchecked($post_conv));
    };
    ($T:ident; $fn_name:ident, $pre_conv:expr, $post_conv:expr) => {
        assert_eq!($fn_name($T::new_unchecked($pre_conv)), $post_conv);
    };
    ($T:ident; $fn_name:ident: $U:ident, $pre_conv:expr, $post_conv:expr) => {
        assert_eq!(
            $fn_name($T::new_unchecked($pre_conv)),
            $U::new_unchecked($post_conv)
        );
    };
}

/// Expands to a list of `assert_eq` statements.
macro_rules! conv_cmps {
    ($fn_name:ident, $pre_conv:expr, $post_conv:expr; $($rest:tt)*) => {
        conv_cmp!($fn_name, $pre_conv, $post_conv);
        conv_cmps!($fn_name, $($rest)*);
    };
    ($fn_name:ident: $U:ident, $pre_conv:expr, $post_conv:expr; $($rest:tt)*) => {
        conv_cmp!($fn_name:$U, $pre_conv, $post_conv);
        conv_cmps!($fn_name:$U, $($rest)*);
    };
    ($T:ident; $fn_name:ident, $pre_conv:expr, $post_conv:expr; $($rest:tt)*) => {
        conv_cmp!($T; $fn_name, $pre_conv, $post_conv);
        conv_cmps!($T; $fn_name, $($rest)*);
    };
    ($T:ident; $fn_name:ident: $U:ident, $pre_conv:expr, $post_conv:expr; $($rest:tt)*) => {
        conv_cmp!($T; $fn_name:$U, $pre_conv, $post_conv);
        conv_cmps!($T; $fn_name:$U, $($rest)*);
    };
    ($fn_name:ident,) => {};
    ($fn_name:ident: $U:ident,) => {};
    ($T:ident; $fn_name:ident,) => {};
    ($T:ident; $fn_name:ident: $U:ident,) => {};
}

/// Expands to a test function for the given test function name.
///
/// We must use one for each as:
/// 1. There is no concat-idents macro for constructing unique names from other identifiers and
/// 2. We need to check for functions that convert to custom sample types (i.e. to_i24 converts to
///    `I24`).
macro_rules! test_fn {

    (to_i8 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i8() {
            conv_cmps!(to_i8, $($conv_cmps)*);
        }
    };

    (to_i16 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i16() {
            conv_cmps!(to_i16, $($conv_cmps)*);
        }
    };

    (to_i24 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i24() {
            conv_cmps!(to_i24: I24, $($conv_cmps)*);
        }
    };

    (to_i32 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i32() {
            conv_cmps!(to_i32, $($conv_cmps)*);
        }
    };

    (to_i48 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i48() {
            conv_cmps!(to_i48: I48, $($conv_cmps)*);
        }
    };

    (to_i64 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i64() {
            conv_cmps!(to_i64, $($conv_cmps)*);
        }
    };

    (to_u8 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u8() {
            conv_cmps!(to_u8, $($conv_cmps)*);
        }
    };

    (to_u16 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u16() {
            conv_cmps!(to_u16, $($conv_cmps)*);
        }
    };

    (to_u24 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u24() {
            conv_cmps!(to_u24: U24, $($conv_cmps)*);
        }
    };

    (to_u32 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u32() {
            conv_cmps!(to_u32, $($conv_cmps)*);
        }
    };

    (to_u48 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u48() {
            conv_cmps!(to_u48: U48, $($conv_cmps)*);
        }
    };

    (to_u64 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u64() {
            conv_cmps!(to_u64, $($conv_cmps)*);
        }
    };

    (to_f32 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_f32() {
            conv_cmps!(to_f32, $($conv_cmps)*);
        }
    };

    (to_f64 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_f64() {
            conv_cmps!(to_f64, $($conv_cmps)*);
        }
    };

    // Test functions for wrapper sample types.

    ($T:ident: to_i8 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i8() {
            conv_cmps!($T; to_i8, $($conv_cmps)*);
        }
    };

    ($T:ident: to_i16 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i16() {
            conv_cmps!($T; to_i16, $($conv_cmps)*);
        }
    };

    ($T:ident: to_i24 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i24() {
            conv_cmps!($T; to_i24: I24, $($conv_cmps)*);
        }
    };

    ($T:ident: to_i32 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i32() {
            conv_cmps!($T; to_i32, $($conv_cmps)*);
        }
    };

    ($T:ident: to_i48 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i48() {
            conv_cmps!($T; to_i48: I48, $($conv_cmps)*);
        }
    };

    ($T:ident: to_i64 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_i64() {
            conv_cmps!($T; to_i64, $($conv_cmps)*);
        }
    };

    ($T:ident: to_u8 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u8() {
            conv_cmps!($T; to_u8, $($conv_cmps)*);
        }
    };

    ($T:ident: to_u16 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u16() {
            conv_cmps!($T; to_u16, $($conv_cmps)*);
        }
    };

    ($T:ident: to_u24 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u24() {
            conv_cmps!($T; to_u24: U24, $($conv_cmps)*);
        }
    };

    ($T:ident: to_u32 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u32() {
            conv_cmps!($T; to_u32, $($conv_cmps)*);
        }
    };

    ($T:ident: to_u48 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u48() {
            conv_cmps!($T; to_u48: U48, $($conv_cmps)*);
        }
    };

    ($T:ident: to_u64 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_u64() {
            conv_cmps!($T; to_u64, $($conv_cmps)*);
        }
    };

    ($T:ident: to_f32 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_f32() {
            conv_cmps!($T; to_f32, $($conv_cmps)*);
        }
    };

    ($T:ident: to_f64 { $($conv_cmps:tt)* }) => {
        #[test]
        fn test_to_f64() {
            conv_cmps!($T; to_f64, $($conv_cmps)*);
        }
    };
}

/// Expands to a list of test functions.
macro_rules! test_fns {
    ($fn_name:tt { $($conv_cmps:tt)* } $($rest:tt)*) => {
        test_fn!($fn_name { $($conv_cmps)* });
        test_fns!($($rest)*);
    };
    ($T:ident: $fn_name:tt { $($conv_cmps:tt)* } $($rest:tt)*) => {
        test_fn!($T: $fn_name { $($conv_cmps)* });
        test_fns!($T: $($rest)*);
    };
    () => {};
    ($T:ident:) => {};
}

/// Expands to a unique test module containing a list of test functions.
macro_rules! tests {
    ($T:ident { $($rest:tt)* }) => {
        pub mod $T {
            use dasp_sample::conv::$T::*;
            use dasp_sample::types::{I24, U24, I48, U48};
            test_fns!($($rest)*);
        }
    };
    ($T:ident: $mod_name:ident { $($rest:tt)* }) => {
        pub mod $mod_name {
            use dasp_sample::conv::$mod_name::*;
            use dasp_sample::types::{I24, U24, I48, U48};
            test_fns!($T: $($rest)*);
        }
    };
}

tests!(i8 {
    to_i16 { -128, -32_768; 0, 0; 127, 32_512; }
    to_i24 { -128, -8_388_608; 0, 0; 127, 8_323_072; }
    to_i32 { -128, -2_147_483_648; 0, 0; 127, 2_130_706_432; }
    to_i48 { -128, -140_737_488_355_328; 0, 0; 127, 139_637_976_727_552; }
    to_i64 { -128, -9_223_372_036_854_775_808; 0, 0; 127, 9_151_314_442_816_847_872; }
    to_u8  { -128, 0; 0, 128; 127, 255; }
    to_u16 { -128, 0; 0, 32_768; 127, 65_280; }
    to_u24 { -128, 0; 0, 8_388_608; 127, 16_711_680; }
    to_u32 { -128, 0; 0, 2_147_483_648; 127, 4_278_190_080; }
    to_u48 { -128, 0; 0, 140_737_488_355_328; 127, 280_375_465_082_880; }
    to_u64 { -128, 0; 0, 9_223_372_036_854_775_808; 127, 18_374_686_479_671_623_680; }
    to_f32 { -128, -1.0; 0, 0.0; }
    to_f64 { -128, -1.0; 0, 0.0; }
});

tests!(i16 {
    to_i8  { -32_768, -128; 0, 0; 32_767, 127; }
    to_i24 { -32_768, -8_388_608; 0, 0; 32_767, 8_388_352; }
    to_i32 { -32_768, -2_147_483_648; 0, 0; 32_767, 2_147_418_112; }
    to_i48 { -32_768, -140_737_488_355_328; 0, 0; 32_767, 140_733_193_388_032; }
    to_i64 { -32_768, -9_223_372_036_854_775_808; 0, 0; 32_767, 9_223_090_561_878_065_152; }
    to_u8  { -32_768, 0; 0, 128; 32_767, 255; }
    to_u16 { -32_768, 0; 0, 32_768; 32_767, 65_535; }
    to_u24 { -32_768, 0; 0, 8_388_608; 32_767, 16_776_960; }
    to_u32 { -32_768, 0; 0, 2_147_483_648; 32_767, 4_294_901_760; }
    to_u48 { -32_768, 0; 0, 140_737_488_355_328; 32_767, 281_470_681_743_360; }
    to_u64 { -32_768, 0; 0, 9_223_372_036_854_775_808; 32_767, 18_446_462_598_732_840_960; }
    to_f32 { -32_768, -1.0; 0, 0.0; }
    to_f64 { -32_768, -1.0; 0, 0.0; }
});

tests!(I24: i24 {
    to_i8  { -8_388_608, -128; 0, 0; 8_388_607, 127; }
    to_i16 { -8_388_608, -32_768; 0, 0; 8_388_607, 32_767; }
    to_i32 { -8_388_608, -2_147_483_648; 0, 0; 8_388_607, 2_147_483_392; }
    to_i48 { -8_388_608, -140_737_488_355_328; 0, 0; 8_388_607, 140_737_471_578_112; }
    to_i64 { -8_388_608, -9_223_372_036_854_775_808; 0, 0; 8_388_607, 9_223_370_937_343_148_032; }
    to_u8  { -8_388_608, 0; 0, 128; 8_388_607, 255; }
    to_u16 { -8_388_608, 0; 0, 32_768; 8_388_607, 65_535; }
    to_u24 { -8_388_608, 0; 0, 8_388_608; 8_388_607, 16_777_215; }
    to_u32 { -8_388_608, 0; 0, 2_147_483_648; 8_388_607, 4_294_967_040; }
    to_u48 { -8_388_608, 0; 0, 140_737_488_355_328; 8_388_607, 281_474_959_933_440; }
    to_u64 { -8_388_608, 0; 0, 9_223_372_036_854_775_808; 8_388_607, 18_446_742_974_197_923_840; }
    to_f32 { -8_388_608, -1.0; 0, 0.0; }
    to_f64 { -8_388_608, -1.0; 0, 0.0; }
});

tests!(i32 {
    to_i8  { -2_147_483_648, -128; 0, 0; 2_147_483_647, 127; }
    to_i16 { -2_147_483_648, -32_768; 0, 0; 2_147_483_647, 32_767; }
    to_i24 { -2_147_483_648, -8_388_608; 0, 0; 2_147_483_647, 8_388_607; }
    to_i48 { -2_147_483_648, -140_737_488_355_328; 0, 0; 2_147_483_647, 140_737_488_289_792; }
    to_i64 { -2_147_483_648, -9_223_372_036_854_775_808; 0, 0; 2_147_483_647, 9_223_372_032_559_808_512; }
    to_u8  { -2_147_483_648, 0; 0, 128; 2_147_483_647, 255; }
    to_u16 { -2_147_483_648, 0; 0, 32_768; 2_147_483_647, 65_535; }
    to_u24 { -2_147_483_648, 0; 0, 8_388_608; 2_147_483_647, 16_777_215; }
    to_u32 { -2_147_483_648, 0; 0, 2_147_483_648; 2_147_483_647, 4_294_967_295; }
    to_u48 { -2_147_483_648, 0; 0, 140_737_488_355_328; 2_147_483_647, 281_474_976_645_120; }
    to_u64 { -2_147_483_648, 0; 0, 9_223_372_036_854_775_808; 2_147_483_647, 18_446_744_069_414_584_320; }
    to_f32 { -2_147_483_648, -1.0; 0, 0.0; }
    to_f64 { -2_147_483_648, -1.0; 0, 0.0; }
});

tests!(I48: i48 {
    to_i8  { -140_737_488_355_328, -128; 0, 0; 140_737_488_355_327, 127; }
    to_i16 { -140_737_488_355_328, -32_768; 0, 0; 140_737_488_355_327, 32_767; }
    to_i24 { -140_737_488_355_328, -8_388_608; 0, 0; 140_737_488_355_327, 8_388_607; }
    to_i32 { -140_737_488_355_328, -2_147_483_648; 0, 0; 140_737_488_355_327, 2_147_483_647; }
    to_i64 { -140_737_488_355_328, -9_223_372_036_854_775_808; 0, 0; 140_737_488_355_327, 9_223_372_036_854_710_272; }
    to_u8  { -140_737_488_355_328, 0; 0, 128; 140_737_488_355_327, 255; }
    to_u16 { -140_737_488_355_328, 0; 0, 32_768; 140_737_488_355_327, 65_535; }
    to_u24 { -140_737_488_355_328, 0; 0, 8_388_608; 140_737_488_355_327, 16_777_215; }
    to_u32 { -140_737_488_355_328, 0; 0, 2_147_483_648; 140_737_488_355_327, 4_294_967_295; }
    to_u48 { -140_737_488_355_328, 0; 0, 140_737_488_355_328; 140_737_488_355_327, 281_474_976_710_655; }
    to_u64 { -140_737_488_355_328, 0; 0, 9_223_372_036_854_775_808; 140_737_488_355_327, 18_446_744_073_709_486_080; }
});

tests!(i64 {
    to_i8  { -9_223_372_036_854_775_808, -128; 0, 0; 9_223_372_036_854_775_807, 127; }
    to_i16 { -9_223_372_036_854_775_808, -32_768; 0, 0; 9_223_372_036_854_775_807, 32_767; }
    to_i24 { -9_223_372_036_854_775_808, -8_388_608; 0, 0; 9_223_372_036_854_775_807, 8_388_607; }
    to_i32 { -9_223_372_036_854_775_808, -2_147_483_648; 0, 0; 9_223_372_036_854_775_807, 2_147_483_647; }
    to_i48 { -9_223_372_036_854_775_808, -140_737_488_355_328; 0, 0; 9_223_372_036_854_775_807, 140_737_488_355_327; }
    to_u8  { -9_223_372_036_854_775_808, 0; 0, 128; 9_223_372_036_854_775_807, 255; }
    to_u16 { -9_223_372_036_854_775_808, 0; 0, 32_768; 9_223_372_036_854_775_807, 65_535; }
    to_u24 { -9_223_372_036_854_775_808, 0; 0, 8_388_608; 9_223_372_036_854_775_807, 16_777_215; }
    to_u32 { -9_223_372_036_854_775_808, 0; 0, 2_147_483_648; 9_223_372_036_854_775_807, 4_294_967_295; }
    to_u48 { -9_223_372_036_854_775_808, 0; 0, 140_737_488_355_328; 9_223_372_036_854_775_807, 281_474_976_710_655; }
    to_u64 { -9_223_372_036_854_775_808, 0; 0, 9_223_372_036_854_775_808; 9_223_372_036_854_775_807, 18_446_744_073_709_551_615; }
    to_f32 { -9_223_372_036_854_775_808, -1.0; 0, 0.0; }
    to_f64 { -9_223_372_036_854_775_808, -1.0; 0, 0.0; }
});

tests!(u8 {
    to_i8  { 0, -128; 128, 0; 255, 127; }
    to_i16 { 0, -32_768; 128, 0; 255, 32_512; }
    to_i24 { 0, -8_388_608; 128, 0; 255, 8_323_072; }
    to_i32 { 0, -2_147_483_648; 128, 0; 255, 2_130_706_432; }
    to_i48 { 0, -140_737_488_355_328; 128, 0; 255, 139_637_976_727_552; }
    to_i64 { 0, -9_223_372_036_854_775_808; 128, 0; 255, 9_151_314_442_816_847_872; }
    to_u16 { 0, 0; 128, 32_768; 255, 65_280; }
    to_u24 { 0, 0; 128, 8_388_608; 255, 16_711_680; }
    to_u32 { 0, 0; 128, 2_147_483_648; 255, 4_278_190_080; }
    to_u48 { 0, 0; 128, 140_737_488_355_328; 255, 280_375_465_082_880; }
    to_u64 { 0, 0; 128, 9_223_372_036_854_775_808; 255, 18_374_686_479_671_623_680; }
    to_f32 { 0, -1.0; 128, 0.0; }
    to_f64 { 0, -1.0; 128, 0.0; }
});

tests!(u16 {
    to_i8  { 0, -128; 32_768, 0; 65_535, 127; }
    to_i16 { 0, -32_768; 32_768, 0; 65_535, 32_767; }
    to_i24 { 0, -8_388_608; 32_768, 0; 65_535, 8_388_352; }
    to_i32 { 0, -2_147_483_648; 32_768, 0; 65_535, 2_147_418_112; }
    to_i48 { 0, -140_737_488_355_328; 32_768, 0; 65_535, 140_733_193_388_032; }
    to_i64 { 0, -9_223_372_036_854_775_808; 32_768, 0; 65_535, 9_223_090_561_878_065_152; }
    to_u8  { 0, 0; 32_768, 128; 65_535, 255; }
    to_u24 { 0, 0; 32_768, 8_388_608; 65_535, 16_776_960; }
    to_u32 { 0, 0; 32_768, 2_147_483_648; 65_535, 4_294_901_760; }
    to_u48 { 0, 0; 32_768, 140_737_488_355_328; 65_535, 281_470_681_743_360; }
    to_u64 { 0, 0; 32_768, 9_223_372_036_854_775_808; 65_535, 18_446_462_598_732_840_960; }
    to_f32 { 0, -1.0; 32_768, 0.0; }
    to_f64 { 0, -1.0; 32_768, 0.0; }
});

tests!(U24: u24 {
    to_i8  { 0, -128; 8_388_608, 0; 16_777_215, 127; }
    to_i16 { 0, -32_768; 8_388_608, 0; 16_777_215, 32_767; }
    to_i24 { 0, -8_388_608; 8_388_608, 0; 16_777_215, 8_388_607; }
    to_i32 { 0, -2_147_483_648; 8_388_608, 0; 16_777_215, 2_147_483_392; }
    to_i48 { 0, -140_737_488_355_328; 8_388_608, 0; 16_777_215, 140_737_471_578_112; }
    to_i64 { 0, -9_223_372_036_854_775_808; 8_388_608, 0; 16_777_215, 9_223_370_937_343_148_032; }
    to_u8  { 0, 0; 8_388_608, 128; 16_777_215, 255; }
    to_u16 { 0, 0; 8_388_608, 32_768; 16_777_215, 65_535; }
    to_u32 { 0, 0; 8_388_608, 2_147_483_648; 16_777_215, 4_294_967_040; }
    to_u48 { 0, 0; 8_388_608, 140_737_488_355_328; 16_777_215, 281_474_959_933_440; }
    to_u64 { 0, 0; 8_388_608, 9_223_372_036_854_775_808; 16_777_215, 18_446_742_974_197_923_840; }
    to_f32 { 0, -1.0; 8_388_608, 0.0; }
    to_f64 { 0, -1.0; 8_388_608, 0.0; }
});

tests!(u32 {
    to_i8  { 0, -128; 2_147_483_648, 0; 4_294_967_295, 127; }
    to_i16 { 0, -32_768; 2_147_483_648, 0; 4_294_967_295, 32_767; }
    to_i24 { 0, -8_388_608; 2_147_483_648, 0; 4_294_967_295, 8_388_607; }
    to_i32 { 0, -2_147_483_648; 2_147_483_648, 0; 4_294_967_295, 2_147_483_647; }
    to_i48 { 0, -140_737_488_355_328; 2_147_483_648, 0; 4_294_967_295, 140_737_488_289_792; }
    to_i64 { 0, -9_223_372_036_854_775_808; 2_147_483_648, 0; 4_294_967_295, 9_223_372_032_559_808_512; }
    to_u8  { 0, 0; 2_147_483_648, 128; 4_294_967_295, 255; }
    to_u16 { 0, 0; 2_147_483_648, 32_768; 4_294_967_295, 65_535; }
    to_u24 { 0, 0; 2_147_483_648, 8_388_608; 4_294_967_295, 16_777_215; }
    to_u48 { 0, 0; 2_147_483_648, 140_737_488_355_328; 4_294_967_295, 281_474_976_645_120; }
    to_u64 { 0, 0; 2_147_483_648, 9_223_372_036_854_775_808; 4_294_967_295, 18_446_744_069_414_584_320; }
    to_f32 { 0, -1.0; 2_147_483_648, 0.0; }
    to_f64 { 0, -1.0; 2_147_483_648, 0.0; }
});

tests!(U48: u48 {
    to_i8  { 0, -128; 140_737_488_355_328, 0; 281_474_976_710_655, 127; }
    to_i16 { 0, -32_768; 140_737_488_355_328, 0; 281_474_976_710_655, 32_767; }
    to_i24 { 0, -8_388_608; 140_737_488_355_328, 0; 281_474_976_710_655, 8_388_607; }
    to_i32 { 0, -2_147_483_648; 140_737_488_355_328, 0; 281_474_976_710_655, 2_147_483_647; }
    to_i48 { 0, -140_737_488_355_328; 140_737_488_355_328, 0; 281_474_976_710_655, 140_737_488_355_327; }
    to_i64 { 0, -9_223_372_036_854_775_808; 140_737_488_355_328, 0; 281_474_976_710_655, 9_223_372_036_854_710_272; }
    to_u8  { 0, 0; 140_737_488_355_328, 128; 281_474_976_710_655, 255; }
    to_u16 { 0, 0; 140_737_488_355_328, 32_768; 281_474_976_710_655, 65_535; }
    to_u24 { 0, 0; 140_737_488_355_328, 8_388_608; 281_474_976_710_655, 16_777_215; }
    to_u32 { 0, 0; 140_737_488_355_328, 2_147_483_648; 281_474_976_710_655, 4_294_967_295; }
    to_u64 { 0, 0; 140_737_488_355_328, 9_223_372_036_854_775_808; 281_474_976_710_655, 18_446_744_073_709_486_080; }
    to_f32 { 0, -1.0; 140_737_488_355_328, 0.0; }
    to_f64 { 0, -1.0; 140_737_488_355_328, 0.0; }
});

tests!(u64 {
    to_i8  { 0, -128; 9_223_372_036_854_775_808, 0; 18_446_744_073_709_551_615, 127; }
    to_i16 { 0, -32_768; 9_223_372_036_854_775_808, 0; 18_446_744_073_709_551_615, 32_767; }
    to_i24 { 0, -8_388_608; 9_223_372_036_854_775_808, 0; 18_446_744_073_709_551_615, 8_388_607; }
    to_i32 { 0, -2_147_483_648; 9_223_372_036_854_775_808, 0; 18_446_744_073_709_551_615, 2_147_483_647; }
    to_i48 { 0, -140_737_488_355_328; 9_223_372_036_854_775_808, 0; 18_446_744_073_709_551_615, 140_737_488_355_327; }
    to_i64 { 0, -9_223_372_036_854_775_808; 9_223_372_036_854_775_808, 0; 18_446_744_073_709_551_615, 9_223_372_036_854_775_807; }
    to_u8  { 0, 0; 9_223_372_036_854_775_808, 128; 18_446_744_073_709_551_615, 255; }
    to_u16 { 0, 0; 9_223_372_036_854_775_808, 32_768; 18_446_744_073_709_551_615, 65_535; }
    to_u24 { 0, 0; 9_223_372_036_854_775_808, 8_388_608; 18_446_744_073_709_551_615, 16_777_215; }
    to_u32 { 0, 0; 9_223_372_036_854_775_808, 2_147_483_648; 18_446_744_073_709_551_615, 4_294_967_295; }
    to_u48 { 0, 0; 9_223_372_036_854_775_808, 140_737_488_355_328; 18_446_744_073_709_551_615, 281_474_976_710_655; }
    to_f32 { 0, -1.0; 9_223_372_036_854_775_808, 0.0; }
    to_f64 { 0, -1.0; 9_223_372_036_854_775_808, 0.0; }
});

tests!(f32 {
    to_i8  { -1.0, -128; 0.0, 0; }
    to_i16 { -1.0, -32_768; 0.0, 0; }
    to_i24 { -1.0, -8_388_608; 0.0, 0; }
    to_i32 { -1.0, -2_147_483_648; 0.0, 0; }
    to_i48 { -1.0, -140_737_488_355_328; 0.0, 0; }
    to_i64 { -1.0, -9_223_372_036_854_775_808; 0.0, 0; }
    to_u8  { -1.0, 0; 0.0, 128; }
    to_u16 { -1.0, 0; 0.0, 32_768; }
    to_u24 { -1.0, 0; 0.0, 8_388_608; }
    to_u32 { -1.0, 0; 0.0, 2_147_483_648; }
    to_u48 { -1.0, 0; 0.0, 140_737_488_355_328; }
    to_u64 { -1.0, 0; 0.0, 9_223_372_036_854_775_808; }
    to_f64 { -1.0, -1.0; 0.0, 0.0; }
});

tests!(f64 {
    to_i8  { -1.0, -128; 0.0, 0; }
    to_i16 { -1.0, -32_768; 0.0, 0; }
    to_i24 { -1.0, -8_388_608; 0.0, 0; }
    to_i32 { -1.0, -2_147_483_648; 0.0, 0; }
    to_i48 { -1.0, -140_737_488_355_328; 0.0, 0; }
    to_i64 { -1.0, -9_223_372_036_854_775_808; 0.0, 0; }
    to_u8  { -1.0, 0; 0.0, 128; }
    to_u16 { -1.0, 0; 0.0, 32_768; }
    to_u24 { -1.0, 0; 0.0, 8_388_608; }
    to_u32 { -1.0, 0; 0.0, 2_147_483_648; }
    to_u48 { -1.0, 0; 0.0, 140_737_488_355_328; }
    to_u64 { -1.0, 0; 0.0, 9_223_372_036_854_775_808; }
    to_f32 { -1.0, -1.0; 0.0, 0.0; }
});