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|
use pretty_assertions::assert_eq as assert_eq_pretty;
macro_rules! assert_eq_display {
($left:expr, $right:expr) => {{
match (&$left, &$right) {
(left_val, right_val) => {
if !(*left_val == *right_val) {
panic!(
r#"assertion failed: `(left == right)`
left: `{}`,
right: `{}`"#,
left_val, right_val
)
}
}
}
}};
}
#[macro_export]
macro_rules! make_spec_test {
($type:ident, $status:ident, $name:ident, $path:expr) => {
#[test]
#[allow(non_snake_case)]
fn $name() {
use crate::tests::*;
// Many tests stack overflow in debug mode
std::thread::Builder::new()
.stack_size(4 * 1024 * 1024)
.spawn(|| {
run_test($path, Feature::$type, Status::$status)
.map_err(|e| println!("{}", e))
.unwrap();
})
.unwrap()
.join()
.unwrap();
}
};
}
use crate::error::{Error, Result};
use crate::expr::Parsed;
use std::path::PathBuf;
#[derive(Copy, Clone)]
pub enum Feature {
Parser,
Normalization,
Typecheck,
TypeInference,
}
#[derive(Copy, Clone)]
pub enum Status {
Success,
Failure,
}
fn parse_file_str<'i>(file_path: &str) -> Result<Parsed> {
Parsed::parse_file(&PathBuf::from(file_path))
}
fn parse_binary_file_str<'i>(file_path: &str) -> Result<Parsed> {
Parsed::parse_binary_file(&PathBuf::from(file_path))
}
pub fn run_test(
base_path: &str,
feature: Feature,
status: Status,
) -> Result<()> {
use self::Feature::*;
use self::Status::*;
let feature_prefix = match feature {
Parser => "parser/",
Normalization => "normalization/",
Typecheck => "typecheck/",
TypeInference => "type-inference/",
};
let status_prefix = match status {
Success => "success/",
Failure => "failure/",
};
let base_path = "../dhall-lang/tests/".to_owned()
+ feature_prefix
+ status_prefix
+ base_path;
match status {
Success => {
let expr_file_path = base_path.clone() + "A.dhall";
let expr = parse_file_str(&expr_file_path)?;
if let Parser = feature {
let expected_file_path = base_path + "B.dhallb";
let expected = parse_binary_file_str(&expected_file_path)?;
assert_eq_pretty!(expr, expected);
// Round-trip pretty-printer
let expr: Parsed = crate::from_str(&expr.to_string(), None)?;
assert_eq!(expr, expected);
return Ok(());
}
let expr = expr.resolve()?;
let expected_file_path = base_path + "B.dhall";
let expected = parse_file_str(&expected_file_path)?
.resolve()?
.skip_typecheck()
.skip_normalize();
match feature {
Parser => unreachable!(),
Typecheck => {
expr.typecheck_with(&expected.into_type())?;
}
TypeInference => {
let expr = expr.typecheck()?;
let ty = expr.get_type().as_normalized()?;
assert_eq_display!(ty, &expected);
}
Normalization => {
let expr = expr.skip_typecheck().normalize();
assert_eq_display!(expr, expected);
}
}
}
Failure => {
let file_path = base_path + ".dhall";
match feature {
Parser => {
let err = parse_file_str(&file_path).unwrap_err();
match err {
Error::Parse(_) => {}
e => panic!("Expected parse error, got: {:?}", e),
}
}
Normalization => unreachable!(),
Typecheck | TypeInference => {
parse_file_str(&file_path)?
.skip_resolve()?
.typecheck()
.unwrap_err();
}
}
}
}
Ok(())
}
|
