2 files changed, 65 insertions, 17 deletions

diff --git a/dom/webgpu/tests/cts/vendor/src/fs.rs b/dom/webgpu/tests/cts/vendor/src/fs.rs
index 31697f9758..3062f27cdb 100644
--- a/dom/webgpu/tests/cts/vendor/src/fs.rs
+++ b/dom/webgpu/tests/cts/vendor/src/fs.rs
@@ -245,15 +245,6 @@ impl Display for Child<'_> {
     }
 }
 
-pub(crate) fn existing_file<P>(path: P) -> P
-where
-    P: AsRef<Path>,
-{
-    let p = path.as_ref();
-    assert!(p.is_file(), "{p:?} does not exist as a file");
-    path
-}
-
 pub(crate) fn copy_dir<P, Q>(source: P, dest: Q) -> miette::Result<()>
 where
     P: Display + AsRef<Path>,
@@ -297,6 +288,30 @@ where
     })
 }
 
+pub(crate) fn rename<P1, P2>(from: P1, to: P2) -> miette::Result<()>
+where
+    P1: AsRef<Path>,
+    P2: AsRef<Path>,
+{
+    fs::rename(&from, &to).into_diagnostic().wrap_err_with(|| {
+        format!(
+            "failed to rename {} to {}",
+            from.as_ref().display(),
+            to.as_ref().display()
+        )
+    })
+}
+
+pub(crate) fn try_exists<P>(path: P) -> miette::Result<bool>
+where
+    P: AsRef<Path>,
+{
+    let path = path.as_ref();
+    path.try_exists()
+        .into_diagnostic()
+        .wrap_err_with(|| format!("failed to check if path exists: {}", path.display()))
+}
+
 pub(crate) fn create_dir_all<P>(path: P) -> miette::Result<()>
 where
     P: AsRef<Path>,
diff --git a/dom/webgpu/tests/cts/vendor/src/main.rs b/dom/webgpu/tests/cts/vendor/src/main.rs
index 750b65c62e..1171c90b3a 100644
--- a/dom/webgpu/tests/cts/vendor/src/main.rs
+++ b/dom/webgpu/tests/cts/vendor/src/main.rs
@@ -6,12 +6,13 @@ use std::{
 };
 
 use clap::Parser;
+use itertools::Itertools;
 use lets_find_up::{find_up_with, FindUpKind, FindUpOptions};
 use miette::{bail, ensure, miette, Context, Diagnostic, IntoDiagnostic, Report, SourceSpan};
 use regex::Regex;
 
 use crate::{
-    fs::{copy_dir, create_dir_all, existing_file, remove_file, FileRoot},
+    fs::{copy_dir, create_dir_all, remove_file, FileRoot},
     path::join_path,
     process::{which, EasyCommand},
 };
@@ -277,13 +278,6 @@ fn run(args: CliArgs) -> miette::Result<()> {
     })?;
 
     let cts_https_html_path = out_wpt_dir.child("cts.https.html");
-    log::info!("refining the output of {cts_https_html_path} with `npm run gen_wpt_cts_html …`…");
-    EasyCommand::new(&npm_bin, |cmd| {
-        cmd.args(["run", "gen_wpt_cts_html"]).arg(existing_file(
-            &cts_ckt.child("tools/gen_wpt_cfg_unchunked.json"),
-        ))
-    })
-    .spawn()?;
 
     {
         let extra_cts_https_html_path = out_wpt_dir.child("cts-chunked2sec.https.html");
@@ -551,6 +545,45 @@ fn run(args: CliArgs) -> miette::Result<()> {
         log::info!("  …removing {cts_https_html_path}, now that it's been divided up…");
         remove_file(&cts_https_html_path)?;
 
+        log::info!("moving ready-to-go WPT test files into `cts`…");
+
+        let webgpu_dir = out_wpt_dir.child("webgpu");
+        let ready_to_go_tests = wax::Glob::new("**/*.{html,{any,sub,worker}.js}")
+            .unwrap()
+            .walk(&webgpu_dir)
+            .map_ok(|entry| webgpu_dir.child(entry.into_path()))
+            .collect::<Result<Vec<_>, _>>()
+            .map_err(Report::msg)
+            .wrap_err_with(|| {
+                format!("failed to walk {webgpu_dir} for ready-to-go WPT test files")
+            })?;
+
+        log::trace!("  …will move the following: {ready_to_go_tests:#?}");
+
+        for file in ready_to_go_tests {
+            let path_relative_to_webgpu_dir = file.strip_prefix(&webgpu_dir).unwrap();
+            let dst_path = cts_tests_dir.child(path_relative_to_webgpu_dir);
+            log::trace!("…moving {file} to {dst_path}…");
+            ensure!(
+                !fs::try_exists(&dst_path)?,
+                "internal error: duplicate path found while moving ready-to-go test {} to {}",
+                file,
+                dst_path,
+            );
+            fs::create_dir_all(dst_path.parent().unwrap()).wrap_err_with(|| {
+                format!(
+                    concat!(
+                        "failed to create destination parent dirs. ",
+                        "while recursively moving from {} to {}",
+                    ),
+                    file, dst_path,
+                )
+            })?;
+            fs::rename(&file, &dst_path)
+                .wrap_err_with(|| format!("failed to move {file} to {dst_path}"))?;
+        }
+        log::debug!("  …finished moving ready-to-go WPT test files");
+
         Ok(())
     })?;