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|
//! proc-macro tests
#[macro_use]
mod utils;
use utils::*;
use expect_test::expect;
#[test]
fn test_derive_empty() {
assert_expand("DeriveEmpty", r#"struct S;"#, expect!["SUBTREE $$ 4294967295 4294967295"]);
}
#[test]
fn test_derive_error() {
assert_expand(
"DeriveError",
r#"struct S;"#,
expect![[r##"
SUBTREE $$ 4294967295 4294967295
IDENT compile_error 4294967295
PUNCH ! [alone] 4294967295
SUBTREE () 4294967295 4294967295
LITERAL "#[derive(DeriveError)] struct S ;" 4294967295
PUNCH ; [alone] 4294967295"##]],
);
}
#[test]
fn test_fn_like_macro_noop() {
assert_expand(
"fn_like_noop",
r#"ident, 0, 1, []"#,
expect![[r#"
SUBTREE $$ 4294967295 4294967295
IDENT ident 4294967295
PUNCH , [alone] 4294967295
LITERAL 0 4294967295
PUNCH , [alone] 4294967295
LITERAL 1 4294967295
PUNCH , [alone] 4294967295
SUBTREE [] 4294967295 4294967295"#]],
);
}
#[test]
fn test_fn_like_macro_clone_ident_subtree() {
assert_expand(
"fn_like_clone_tokens",
r#"ident, []"#,
expect![[r#"
SUBTREE $$ 4294967295 4294967295
IDENT ident 4294967295
PUNCH , [alone] 4294967295
SUBTREE [] 4294967295 4294967295"#]],
);
}
#[test]
fn test_fn_like_macro_clone_raw_ident() {
assert_expand(
"fn_like_clone_tokens",
"r#async",
expect![[r#"
SUBTREE $$ 4294967295 4294967295
IDENT r#async 4294967295"#]],
);
}
#[test]
fn test_fn_like_mk_literals() {
assert_expand(
"fn_like_mk_literals",
r#""#,
expect![[r#"
SUBTREE $$ 4294967295 4294967295
LITERAL b"byte_string" 4294967295
LITERAL 'c' 4294967295
LITERAL "string" 4294967295
LITERAL 3.14f64 4294967295
LITERAL 3.14 4294967295
LITERAL 123i64 4294967295
LITERAL 123 4294967295"#]],
);
}
#[test]
fn test_fn_like_mk_idents() {
assert_expand(
"fn_like_mk_idents",
r#""#,
expect![[r#"
SUBTREE $$ 4294967295 4294967295
IDENT standard 4294967295
IDENT r#raw 4294967295"#]],
);
}
#[test]
fn test_fn_like_macro_clone_literals() {
assert_expand(
"fn_like_clone_tokens",
r#"1u16, 2_u32, -4i64, 3.14f32, "hello bridge""#,
expect![[r#"
SUBTREE $$ 4294967295 4294967295
LITERAL 1u16 4294967295
PUNCH , [alone] 4294967295
LITERAL 2_u32 4294967295
PUNCH , [alone] 4294967295
PUNCH - [alone] 4294967295
LITERAL 4i64 4294967295
PUNCH , [alone] 4294967295
LITERAL 3.14f32 4294967295
PUNCH , [alone] 4294967295
LITERAL "hello bridge" 4294967295"#]],
);
}
#[test]
fn test_attr_macro() {
// Corresponds to
// #[proc_macro_test::attr_error(some arguments)]
// mod m {}
assert_expand_attr(
"attr_error",
r#"mod m {}"#,
r#"some arguments"#,
expect![[r##"
SUBTREE $$ 4294967295 4294967295
IDENT compile_error 4294967295
PUNCH ! [alone] 4294967295
SUBTREE () 4294967295 4294967295
LITERAL "#[attr_error(some arguments)] mod m {}" 4294967295
PUNCH ; [alone] 4294967295"##]],
);
}
/// Tests that we find and classify all proc macros correctly.
#[test]
fn list_test_macros() {
let res = list().join("\n");
expect![[r#"
fn_like_noop [FuncLike]
fn_like_panic [FuncLike]
fn_like_error [FuncLike]
fn_like_clone_tokens [FuncLike]
fn_like_mk_literals [FuncLike]
fn_like_mk_idents [FuncLike]
attr_noop [Attr]
attr_panic [Attr]
attr_error [Attr]
DeriveEmpty [CustomDerive]
DerivePanic [CustomDerive]
DeriveError [CustomDerive]"#]]
.assert_eq(&res);
}
|
