forked from BigfootDev/flatbuffers
6f3e45eca1
* Implment Rust object API defaults * satisfy return analysis * git clang format Co-authored-by: Casper Neo <cneo@google.com>
150 lines
4.1 KiB
Rust
150 lines
4.1 KiB
Rust
#[allow(dead_code, unused_imports)]
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#[path = "../../optional_scalars_generated.rs"]
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mod optional_scalars_generated;
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use crate::optional_scalars_generated::optional_scalars::*;
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// There are 3 variants of scalars in tables - those specified with default=42,
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// optional scalars, and those with nothing specified (implicitly default=0).
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// This tests that you can read what you write.
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macro_rules! make_test {
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(
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$test_name: ident,
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$just: ident, $default: ident, $maybe: ident,
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$five: expr, $zero: expr, $fortytwo: expr
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) => {
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#[test]
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fn $test_name() {
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let mut builder = flatbuffers::FlatBufferBuilder::new();
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// Test five makes sense when specified.
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let ss = ScalarStuff::create(
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&mut builder,
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&ScalarStuffArgs {
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$just: $five,
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$default: $five,
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$maybe: Some($five),
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..Default::default()
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},
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);
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builder.finish(ss, None);
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let s = flatbuffers::root::<ScalarStuff>(builder.finished_data()).unwrap();
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assert_eq!(s.$just(), $five);
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assert_eq!(s.$default(), $five);
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assert_eq!(s.$maybe(), Some($five));
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// Test defaults are used when not specified.
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let s = flatbuffers::root::<ScalarStuff>(&[0; 8]).unwrap();
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assert_eq!(s.$just(), $zero);
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assert_eq!(s.$default(), $fortytwo);
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assert_eq!(s.$maybe(), None);
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// Same for object API
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let s = flatbuffers::root::<ScalarStuff>(builder.finished_data()).unwrap().unpack();
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assert_eq!(s.$just, $five);
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assert_eq!(s.$default, $five);
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assert_eq!(s.$maybe, Some($five));
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let s = flatbuffers::root::<ScalarStuff>(&[0; 8]).unwrap().unpack();
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assert_eq!(s.$just, $zero);
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assert_eq!(s.$default, $fortytwo);
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assert_eq!(s.$maybe, None);
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}
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};
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}
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make_test!(optional_i8, just_i8, default_i8, maybe_i8, 5, 0, 42);
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make_test!(optional_u8, just_u8, default_u8, maybe_u8, 5, 0, 42);
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make_test!(optional_i16, just_i16, default_i16, maybe_i16, 5, 0, 42);
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make_test!(optional_u16, just_u16, default_u16, maybe_u16, 5, 0, 42);
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make_test!(optional_i32, just_i32, default_i32, maybe_i32, 5, 0, 42);
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make_test!(optional_u32, just_u32, default_u32, maybe_u32, 5, 0, 42);
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make_test!(optional_i64, just_i64, default_i64, maybe_i64, 5, 0, 42);
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make_test!(optional_u64, just_u64, default_u64, maybe_u64, 5, 0, 42);
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make_test!(
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optional_f32,
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just_f32,
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default_f32,
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maybe_f32,
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5.0,
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0.0,
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42.0
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);
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make_test!(
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optional_f64,
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just_f64,
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default_f64,
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maybe_f64,
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5.0,
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0.0,
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42.0
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);
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make_test!(
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optional_bool,
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just_bool,
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default_bool,
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maybe_bool,
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true,
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false,
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true
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);
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make_test!(
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optional_enum,
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just_enum,
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default_enum,
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maybe_enum,
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OptionalByte::Two,
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OptionalByte::None,
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OptionalByte::One
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);
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#[test]
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fn object_api_defaults() {
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assert_eq!(
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ScalarStuffT::default(),
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ScalarStuffT {
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just_i8: 0,
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maybe_i8: None,
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default_i8: 42,
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just_u8: 0,
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maybe_u8: None,
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default_u8: 42,
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just_i16: 0,
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maybe_i16: None,
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default_i16: 42,
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just_u16: 0,
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maybe_u16: None,
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default_u16: 42,
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just_i32: 0,
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maybe_i32: None,
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default_i32: 42,
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just_u32: 0,
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maybe_u32: None,
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default_u32: 42,
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just_i64: 0,
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maybe_i64: None,
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default_i64: 42,
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just_u64: 0,
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maybe_u64: None,
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default_u64: 42,
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just_f32: 0.0,
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maybe_f32: None,
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default_f32: 42.0,
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just_f64: 0.0,
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maybe_f64: None,
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default_f64: 42.0,
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just_bool: false,
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maybe_bool: None,
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default_bool: true,
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just_enum: OptionalByte::None,
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maybe_enum: None,
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default_enum: OptionalByte::One,
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}
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);
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}
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