#[allow(dead_code, unused_imports)]
#[path = "../../optional_scalars_generated.rs"]
mod optional_scalars_generated;
use crate::optional_scalars_generated::optional_scalars::*;

// There are 3 variants of scalars in tables - those specified with default=42,
// optional scalars, and those with nothing specified (implicitly default=0).
// This tests that you can read what you write.
macro_rules! make_test {
    (
        $test_name: ident,
        $just: ident, $default: ident, $maybe: ident,
        $five: expr, $zero: expr, $fortytwo: expr
    ) => {
        #[test]
        fn $test_name() {
            let mut builder = flatbuffers::FlatBufferBuilder::new();
            // Test five makes sense when specified.
            let ss = ScalarStuff::create(
                &mut builder,
                &ScalarStuffArgs {
                    $just: $five,
                    $default: $five,
                    $maybe: Some($five),
                    ..Default::default()
                },
            );
            builder.finish(ss, None);

            let s = flatbuffers::root::<ScalarStuff>(builder.finished_data()).unwrap();
            assert_eq!(s.$just(), $five);
            assert_eq!(s.$default(), $five);
            assert_eq!(s.$maybe(), Some($five));

            // Test defaults are used when not specified.
            let s = flatbuffers::root::<ScalarStuff>(&[0; 8]).unwrap();
            assert_eq!(s.$just(), $zero);
            assert_eq!(s.$default(), $fortytwo);
            assert_eq!(s.$maybe(), None);

            // Same for object API
            let s = flatbuffers::root::<ScalarStuff>(builder.finished_data()).unwrap().unpack();
            assert_eq!(s.$just, $five);
            assert_eq!(s.$default, $five);
            assert_eq!(s.$maybe, Some($five));
            let s = flatbuffers::root::<ScalarStuff>(&[0; 8]).unwrap().unpack();
            assert_eq!(s.$just, $zero);
            assert_eq!(s.$default, $fortytwo);
            assert_eq!(s.$maybe, None);
        }
    };
}

make_test!(optional_i8, just_i8, default_i8, maybe_i8, 5, 0, 42);
make_test!(optional_u8, just_u8, default_u8, maybe_u8, 5, 0, 42);
make_test!(optional_i16, just_i16, default_i16, maybe_i16, 5, 0, 42);
make_test!(optional_u16, just_u16, default_u16, maybe_u16, 5, 0, 42);
make_test!(optional_i32, just_i32, default_i32, maybe_i32, 5, 0, 42);
make_test!(optional_u32, just_u32, default_u32, maybe_u32, 5, 0, 42);
make_test!(optional_i64, just_i64, default_i64, maybe_i64, 5, 0, 42);
make_test!(optional_u64, just_u64, default_u64, maybe_u64, 5, 0, 42);
make_test!(
    optional_f32,
    just_f32,
    default_f32,
    maybe_f32,
    5.0,
    0.0,
    42.0
);
make_test!(
    optional_f64,
    just_f64,
    default_f64,
    maybe_f64,
    5.0,
    0.0,
    42.0
);
make_test!(
    optional_bool,
    just_bool,
    default_bool,
    maybe_bool,
    true,
    false,
    true
);
make_test!(
     optional_enum,
     just_enum,
     default_enum,
     maybe_enum,
     OptionalByte::Two,
     OptionalByte::None,
     OptionalByte::One
);

#[test]
fn object_api_defaults() {
    assert_eq!(
        ScalarStuffT::default(),
        ScalarStuffT {
            just_i8: 0,
            maybe_i8: None,
            default_i8: 42,
            just_u8: 0,
            maybe_u8: None,
            default_u8: 42,

            just_i16: 0,
            maybe_i16: None,
            default_i16: 42,
            just_u16: 0,
            maybe_u16: None,
            default_u16: 42,

            just_i32: 0,
            maybe_i32: None,
            default_i32: 42,
            just_u32: 0,
            maybe_u32: None,
            default_u32: 42,

            just_i64: 0,
            maybe_i64: None,
            default_i64: 42,
            just_u64: 0,
            maybe_u64: None,
            default_u64: 42,

            just_f32: 0.0,
            maybe_f32: None,
            default_f32: 42.0,
            just_f64: 0.0,
            maybe_f64: None,
            default_f64: 42.0,

            just_bool: false,
            maybe_bool: None,
            default_bool: true,

            just_enum: OptionalByte::None,
            maybe_enum: None,
            default_enum: OptionalByte::One,

        }
    );
}
