fix(node): map stdio [0, 1, 2] to "inherit" (#19352)

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Internally, `node-tap` spawns a child process with `stdio: [0, 1, 2]`.
Whilst we don't support passing fd numbers as an argument so far, it
turns out that `[0, 1, 2]` is equivalent to `"inherit"` which we already
support. See: https://nodejs.org/api/child_process.html#optionsstdio

Mapping it to `"inherit"` is fine for us and gets us one step closer in
getting `node-tap` working. I'm now at the stage where already the
coverage table is shown 🎉

1 files changed, 7 insertions, 0 deletions

diff --git a/ext/node/polyfills/internal/child_process.ts b/ext/node/polyfills/internal/child_process.ts
index 365af4add..d4acf1db2 100644
--- a/ext/node/polyfills/internal/child_process.ts
+++ b/ext/node/polyfills/internal/child_process.ts
@@ -469,6 +469,13 @@ function normalizeStdioOption(
   ...Array<Stream | NodeStdio | number>,
 ] {
   if (Array.isArray(stdio)) {
+    // `[0, 1, 2]` is equivalent to `"inherit"`
+    if (
+      stdio.length === 3 && stdio[0] === 0 && stdio[1] === 1 && stdio[2] === 2
+    ) {
+      return ["inherit", "inherit", "inherit"];
+    }
+
     // At least 3 stdio must be created to match node
     while (stdio.length < 3) {
       ArrayPrototypePush(stdio, undefined);