Fix deleting [0, Infinity) (#31)

* Add failing test case

* Fix it

* Update basic.js

Co-authored-by: Mathias Buus <[email protected]>

Author: kasperisager

index.js

@@ -153,6 +153,8 @@ module.exports = class RandomAccessFile extends RandomAccessStorage {
   }
 
   _del (req) {
+    if (req.size === Infinity) return this._truncate(req) // TODO: remove this when all callsites use truncate
+
     if (!fsext) return req.callback(null)
 
     fsext.trim(this.fd, req.offset, req.size).then(ontrim, ontrim)

test/basic.js

@@ -322,6 +322,22 @@ test('del, partial and whole', function (t) {
   })
 })
 
+// TODO: remove this test when we deprecate this usage of delete
+test('del, infinity', function (t) {
+  t.plan(4)
+
+  const file = new RAF(gen(), { size: 100 })
+
+  file.del(0, Infinity, function (err) {
+    t.absent(err, 'no error')
+    file.stat(function (err, st) {
+      t.absent(err, 'no error')
+      t.is(st.size, 0)
+      file.destroy(() => t.pass())
+    })
+  })
+})
+
 test('truncate', function (t) {
   t.plan(7)