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Add tests

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This commit is contained in:
Edwin Cheng 2020-04-10 01:43:47 +08:00
parent e5698faf4c
commit 460ddde176
6 changed files with 305 additions and 0 deletions
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1
Cargo.lock generated
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@ -1113,6 +1113,7 @@ dependencies = [
"ra_proc_macro",
"ra_tt",
"serde_derive",
"test_utils",
]
[[package]]

1
crates/ra_proc_macro_srv/Cargo.toml
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@ -14,6 +14,7 @@ ra_mbe = { path = "../ra_mbe" }
ra_proc_macro = { path = "../ra_proc_macro" }
goblin = "0.2.1"
libloading = "0.6.0"
test_utils = { path = "../test_utils" }
[dev-dependencies]
cargo_metadata = "0.9.1"

3
crates/ra_proc_macro_srv/src/lib.rs
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@ -52,3 +52,6 @@ pub fn list_macros(task: &ListMacrosTask) -> Result<ListMacrosResult, String> {
}
}
}
#[cfg(test)]
mod tests;

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crates/ra_proc_macro_srv/src/tests/fixtures/test_serialize_proc_macro.txt vendored Normal file
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@ -0,0 +1,188 @@
SUBTREE $
PUNCH # [alone] 4294967295
SUBTREE [] 4294967295
IDENT allow 4294967295
SUBTREE () 4294967295
IDENT non_upper_case_globals 4294967295
PUNCH , [alone] 4294967295
IDENT unused_attributes 4294967295
PUNCH , [alone] 4294967295
IDENT unused_qualifications 4294967295
IDENT const 4294967295
IDENT _IMPL_SERIALIZE_FOR_Foo 4294967295
PUNCH : [alone] 4294967295
SUBTREE () 4294967295
PUNCH = [alone] 4294967295
SUBTREE {} 4294967295
PUNCH # [alone] 4294967295
SUBTREE [] 4294967295
IDENT allow 4294967295
SUBTREE () 4294967295
IDENT unknown_lints 4294967295
PUNCH # [alone] 4294967295
SUBTREE [] 4294967295
IDENT cfg_attr 4294967295
SUBTREE () 4294967295
IDENT feature 4294967295
PUNCH = [alone] 4294967295
SUBTREE $
LITERAL "cargo-clippy" 0
PUNCH , [alone] 4294967295
IDENT allow 4294967295
SUBTREE () 4294967295
IDENT useless_attribute 4294967295
PUNCH # [alone] 4294967295
SUBTREE [] 4294967295
IDENT allow 4294967295
SUBTREE () 4294967295
IDENT rust_2018_idioms 4294967295
IDENT extern 4294967295
IDENT crate 4294967295
IDENT serde 4294967295
IDENT as 4294967295
IDENT _serde 4294967295
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SUBTREE [] 4294967295
IDENT allow 4294967295
SUBTREE () 4294967295
IDENT unused_macros 4294967295
IDENT macro_rules 4294967295
PUNCH ! [alone] 4294967295
IDENT try 4294967295
SUBTREE {} 4294967295
SUBTREE () 4294967295
PUNCH $ [alone] 4294967295
IDENT __expr 4294967295
PUNCH : [alone] 4294967295
IDENT expr 4294967295
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PUNCH > [alone] 4294967295
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PUNCH : [joint] 4294967295
PUNCH : [alone] 4294967295
IDENT export 4294967295
PUNCH : [joint] 4294967295
PUNCH : [alone] 4294967295
IDENT Ok 4294967295
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IDENT __val 4294967295
PUNCH = [joint] 4294967295
PUNCH > [alone] 4294967295
IDENT __val 4294967295
PUNCH , [alone] 4294967295
IDENT _serde 4294967295
PUNCH : [joint] 4294967295
PUNCH : [alone] 4294967295
IDENT export 4294967295
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IDENT Err 4294967295
SUBTREE () 4294967295
IDENT __err 4294967295
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IDENT for 4294967295
IDENT Foo 1
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IDENT serialize 4294967295
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IDENT __serializer 4294967295
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IDENT __S 4294967295
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IDENT Serializer 4294967295
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IDENT serialize_struct 4294967295
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IDENT __serializer 4294967295
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crates/ra_proc_macro_srv/src/tests/mod.rs Normal file
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@ -0,0 +1,47 @@
//! proc-macro tests
#[macro_use]
mod utils;
use test_utils::assert_eq_text;
use utils::*;
#[test]
fn test_derive_serialize_proc_macro() {
assert_expand(
"serde_derive",
"Serialize",
"1.0.104",
r##"struct Foo {}"##,
include_str!("fixtures/test_serialize_proc_macro.txt"),
);
}
#[test]
fn test_derive_serialize_proc_macro_failed() {
assert_expand(
"serde_derive",
"Serialize",
"1.0.104",
r##"
struct {}
"##,
r##"
SUBTREE $
IDENT compile_error 4294967295
PUNCH ! [alone] 4294967295
SUBTREE {} 4294967295
LITERAL "expected identifier" 4294967295
"##,
);
}
#[test]
fn test_derive_proc_macro_list() {
let res = list("serde_derive", "1.0.104").join("\n");
assert_eq_text!(
&res,
r#"Serialize [CustomDerive]
Deserialize [CustomDerive]"#
);
}

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crates/ra_proc_macro_srv/src/tests/utils.rs Normal file
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@ -0,0 +1,65 @@
//! utils used in proc-macro tests
use crate::dylib;
use crate::list_macros;
pub use difference::Changeset as __Changeset;
use ra_proc_macro::ListMacrosTask;
use std::str::FromStr;
use test_utils::assert_eq_text;
mod fixtures {
use cargo_metadata::{parse_messages, Message};
use std::process::Command;
// Use current project metadata to get the proc-macro dylib path
pub fn dylib_path(crate_name: &str, version: &str) -> std::path::PathBuf {
let command = Command::new("cargo")
.args(&["check", "--message-format", "json"])
.output()
.unwrap()
.stdout;
for message in parse_messages(command.as_slice()) {
match message.unwrap() {
Message::CompilerArtifact(artifact) => {
if artifact.target.kind.contains(&"proc-macro".to_string()) {
let repr = format!("{} {}", crate_name, version);
if artifact.package_id.repr.starts_with(&repr) {
return artifact.filenames[0].clone();
}
}
}
_ => (), // Unknown message
}
}
panic!("No proc-macro dylib for {} found!", crate_name);
}
}
fn parse_string(code: &str) -> Option<crate::rustc_server::TokenStream> {
Some(crate::rustc_server::TokenStream::from_str(code).unwrap())
}
pub fn assert_expand(
crate_name: &str,
macro_name: &str,
version: &str,
fixture: &str,
expect: &str,
) {
let path = fixtures::dylib_path(crate_name, version);
let expander = dylib::Expander::new(&path).unwrap();
let fixture = parse_string(fixture).unwrap();
let res = expander.expand(macro_name, &fixture.subtree, None).unwrap();
assert_eq_text!(&format!("{:?}", res), &expect.trim());
}
pub fn list(crate_name: &str, version: &str) -> Vec<String> {
let path = fixtures::dylib_path(crate_name, version);
let task = ListMacrosTask { lib: path };
let res = list_macros(&task).unwrap();
res.macros.into_iter().map(|(name, kind)| format!("{} [{:?}]", name, kind)).collect()
}