Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 98 insertions, 0 deletions

diff --git a/third_party/rust/wast/tests/parse-fail.rs b/third_party/rust/wast/tests/parse-fail.rs
new file mode 100644
index 0000000000..3ae1817a4a
--- /dev/null
+++ b/third_party/rust/wast/tests/parse-fail.rs
@@ -0,0 +1,98 @@
+//! A test suite to parse everything in `parse-fail` and assert that it matches
+//! the `*.err` file it generates.
+//!
+//! Use `BLESS=1` in the environment to auto-update `*.err` files. Be sure to
+//! look at the diff!
+
+use rayon::prelude::*;
+use std::env;
+use std::path::{Path, PathBuf};
+
+fn main() {
+    let mut tests = Vec::new();
+    find_tests("tests/parse-fail".as_ref(), &mut tests);
+    let filter = std::env::args().nth(1);
+
+    let bless = env::var("BLESS").is_ok();
+    let tests = tests
+        .iter()
+        .filter(|test| {
+            if let Some(filter) = &filter {
+                if let Some(s) = test.file_name().and_then(|s| s.to_str()) {
+                    if !s.contains(filter) {
+                        return false;
+                    }
+                }
+            }
+            true
+        })
+        .collect::<Vec<_>>();
+
+    println!("running {} tests\n", tests.len());
+
+    let errors = tests
+        .par_iter()
+        .filter_map(|test| run_test(test, bless).err())
+        .collect::<Vec<_>>();
+
+    if !errors.is_empty() {
+        for msg in errors.iter() {
+            eprintln!("{}", msg);
+        }
+
+        panic!("{} tests failed", errors.len())
+    }
+
+    println!("test result: ok. {} passed\n", tests.len());
+}
+
+fn run_test(test: &Path, bless: bool) -> anyhow::Result<()> {
+    let err = match wat::parse_file(test) {
+        Ok(_) => anyhow::bail!("{} parsed successfully", test.display()),
+        Err(e) => e.to_string() + "\n",
+    };
+    let assert = test.with_extension("wat.err");
+    if bless {
+        std::fs::write(assert, err.to_string())?;
+        return Ok(());
+    }
+
+    // Ignore CRLF line ending and force always `\n`
+    let assert = std::fs::read_to_string(assert)
+        .unwrap_or(String::new())
+        .replace("\r\n", "\n");
+
+    // Compare normalize verisons which handles weirdness like path differences
+    if normalize(&assert) == normalize(&err) {
+        return Ok(());
+    }
+
+    anyhow::bail!(
+        "errors did not match:\n\nexpected:\n\t{}\nactual:\n\t{}\n",
+        tab(&assert),
+        tab(&err),
+    );
+
+    fn normalize(s: &str) -> String {
+        s.replace("\\", "/")
+    }
+
+    fn tab(s: &str) -> String {
+        s.replace("\n", "\n\t")
+    }
+}
+
+fn find_tests(path: &Path, tests: &mut Vec<PathBuf>) {
+    for f in path.read_dir().unwrap() {
+        let f = f.unwrap();
+        if f.file_type().unwrap().is_dir() {
+            find_tests(&f.path(), tests);
+            continue;
+        }
+        match f.path().extension().and_then(|s| s.to_str()) {
+            Some("wat") => {}
+            _ => continue,
+        }
+        tests.push(f.path());
+    }
+}