From 1557c58eef9a029d2cb9fa113e457042a8bc1d3c Mon Sep 17 00:00:00 2001
From: greatroar <@>
Date: Mon, 2 Mar 2020 21:33:39 +0100
Subject: [PATCH] Fix and simplify fs.Reader

fakeDir.{Readdir,Readdirnames} weren't handling the case n == 0
correctly. fakeFileInfo.sys is always nil, so omit the field.
---
 internal/fs/fs_reader.go | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/internal/fs/fs_reader.go b/internal/fs/fs_reader.go
index d991951aa..73aca3230 100644
--- a/internal/fs/fs_reader.go
+++ b/internal/fs/fs_reader.go
@@ -275,7 +275,7 @@ type fakeDir struct {
 }
 
 func (d fakeDir) Readdirnames(n int) ([]string, error) {
-	if n >= 0 {
+	if n > 0 {
 		return nil, errors.New("not implemented")
 	}
 	names := make([]string, 0, len(d.entries))
@@ -287,7 +287,7 @@ func (d fakeDir) Readdirnames(n int) ([]string, error) {
 }
 
 func (d fakeDir) Readdir(n int) ([]os.FileInfo, error) {
-	if n >= 0 {
+	if n > 0 {
 		return nil, errors.New("not implemented")
 	}
 	return d.entries, nil
@@ -299,7 +299,6 @@ type fakeFileInfo struct {
 	size    int64
 	mode    os.FileMode
 	modtime time.Time
-	sys     interface{}
 }
 
 func (fi fakeFileInfo) Name() string {
@@ -323,5 +322,5 @@ func (fi fakeFileInfo) IsDir() bool {
 }
 
 func (fi fakeFileInfo) Sys() interface{} {
-	return fi.sys
+	return nil
 }