feat: allow setting rdev on node (#1085)

This adds it to stat too, so rdev will propagate.

src/Stats.ts

@@ -25,7 +25,7 @@ export class Stats<T = TStatNumber> {
     stats.uid = getStatNumber(uid);
     stats.gid = getStatNumber(gid);
 
-    stats.rdev = getStatNumber(0);
+    stats.rdev = getStatNumber(node.rdev);
     stats.blksize = getStatNumber(4096);
     stats.ino = getStatNumber(node.ino);
     stats.size = getStatNumber(node.getSize());

src/__tests__/volume/statSync.test.ts

@@ -12,6 +12,14 @@ describe('.statSync(...)', () => {
     expect(stats.size).toBe(11);
   });
 
+  it('returns rdev', () => {
+    const vol = create({});
+    const fd = vol.openSync('/null', 'w');
+    vol.fds[fd].node.rdev = 1;
+    const stats = vol.statSync('/null');
+    expect(stats.rdev).toBe(1);
+  });
+
   it('returns undefined for non-existent targets with the throwIfNoEntry option set to false', () => {
     const vol = create({});
 

src/node.ts

@@ -28,6 +28,7 @@ export class Node extends EventEmitter {
 
   // data: string = '';
   buf: Buffer;
+  rdev: number = 0;
 
   mode: number; // S_IFDIR, S_IFREG, etc..