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|
use std::env;
use std::ffi::OsString;
use std::fs::File;
use std::io::Write;
use std::path::Path;
use walkdir::WalkDir;
fn dhall_files_in_dir<'a>(
dir: &'a Path,
take_a_suffix: bool,
) -> impl Iterator<Item = (String, String)> + 'a {
WalkDir::new(dir)
.into_iter()
.filter_map(|e| e.ok())
.filter_map(move |path| {
let path = path.path();
let path = path.strip_prefix(dir).unwrap();
if path.extension() != Some(&OsString::from("dhall")) {
return None;
}
let path = path.to_string_lossy();
let path = &path[..path.len() - 6];
let path = if take_a_suffix {
if &path[path.len() - 1..] != "A" {
return None;
} else {
path[..path.len() - 1].to_owned()
}
} else {
path.to_owned()
};
let name = path.replace("/", "_").replace("-", "_");
Some((name, path))
})
}
fn make_test_module(
w: &mut impl Write, // Where to output the generated code
mod_name: &str, // Name of the module, used in the output of `cargo test`
dir: &Path, // Directory containing the tests files
feature: &str, // Relevant variant of `dhall::tests::Feature`
mut exclude: impl FnMut(&str) -> bool, // Given a file name, whether to exclude it
) -> std::io::Result<()> {
writeln!(w, "mod {} {{", mod_name)?;
for (name, path) in dhall_files_in_dir(&dir.join("success/"), true) {
if exclude(&("success/".to_owned() + &path)) {
continue;
}
writeln!(
w,
r#"make_spec_test!({}, Success, success_{}, "success/{}");"#,
feature, name, path
)?;
}
for (name, path) in dhall_files_in_dir(&dir.join("failure/"), false) {
if exclude(&("failure/".to_owned() + &path)) {
continue;
}
writeln!(
w,
r#"make_spec_test!({}, Failure, failure_{}, "failure/{}");"#,
feature, name, path
)?;
}
writeln!(w, "}}")?;
Ok(())
}
fn main() -> std::io::Result<()> {
// Tries to detect when the submodule gets updated; doesn't really work.
// To force regeneration of the test list, just `touch dhall-lang/.git`
println!("cargo:rerun-if-changed=../dhall-lang/.git");
println!(
"cargo:rerun-if-changed=../.git/modules/dhall-lang/refs/heads/master"
);
let out_dir = env::var("OUT_DIR").unwrap();
let tests_dir = Path::new("../dhall-lang/tests/");
let parser_tests_path = Path::new(&out_dir).join("spec_tests.rs");
let mut file = File::create(parser_tests_path)?;
make_test_module(
&mut file,
"parse",
&tests_dir.join("parser/"),
"Parser",
|path| {
// Too slow in debug mode
path == "success/largeExpression"
// TODO: Inline headers are not implemented
|| path == "success/unit/import/parenthesizeUsing"
|| path == "success/unit/import/inlineUsing"
// TODO: projection by expression
|| path == "success/recordProjectionByExpression"
|| path == "success/unit/recordProjectionByExpression"
|| path == "success/unit/recordProjectionByExpressionEmpty"
},
)?;
make_test_module(
&mut file,
"printer",
&tests_dir.join("parser/"),
"Printer",
|path| {
// Failure tests are only for the parser
path.starts_with("failure/")
// Too slow in debug mode
|| path == "success/largeExpression"
// TODO: Inline headers are not implemented
|| path == "success/unit/import/inlineUsing"
// TODO: projection by expression
|| path == "success/recordProjectionByExpression"
|| path == "success/unit/recordProjectionByExpression"
|| path == "success/unit/recordProjectionByExpressionEmpty"
},
)?;
make_test_module(
&mut file,
"binary_encoding",
&tests_dir.join("parser/"),
"BinaryEncoding",
|path| {
// Failure tests are only for the parser
path.starts_with("failure/")
// Too slow in debug mode
|| path == "success/largeExpression"
// Too much of a pain to implement; shouldn't make a difference
// since lets disappear on normalization.
|| path == "success/multilet"
// See https://github.com/pyfisch/cbor/issues/109
|| path == "success/double"
// TODO: Inline headers are not implemented
|| path == "success/unit/import/inlineUsing"
// TODO: projection by expression
|| path == "success/recordProjectionByExpression"
|| path == "success/unit/recordProjectionByExpression"
|| path == "success/unit/recordProjectionByExpressionEmpty"
},
)?;
make_test_module(
&mut file,
"beta_normalize",
&tests_dir.join("normalization/"),
"Normalization",
|path| {
// We don't support bignums
path == "success/simple/integerToDouble"
// Too slow
|| path == "success/remoteSystems"
// TODO: projection by expression
|| path == "success/unit/RecordProjectionTypeEmpty"
|| path == "success/unit/RecordProjectionTypeNonEmpty"
|| path == "success/unit/RecordProjectionTypeNormalizeProjection"
// TODO: fix Double/show
|| path == "success/prelude/JSON/number/1"
// the test is wrong
|| path == "success/prelude/JSON/Type/0"
},
)?;
make_test_module(
&mut file,
"alpha_normalize",
&tests_dir.join("alpha-normalization/"),
"AlphaNormalization",
|_| false,
)?;
Ok(())
}
|
