From: Martin Tournoij <martin@arp242.net>
Date: Sat, 14 Jan 2023 20:13:13 +0000 (+0100)
Subject: Test Add() on non-existent path (#546)
X-Git-Tag: v1.7.2~15
X-Git-Url: https://go.fuhry.dev/?a=commitdiff_plain;h=2b877381b1522cd6832391295844729e6d57cf00;p=fsnotify.git

Test Add() on non-existent path (#546)

Ref: #144
---

diff --git a/fsnotify_test.go b/fsnotify_test.go
index 61070b3..9a4d986 100644
--- a/fsnotify_test.go
+++ b/fsnotify_test.go
@@ -3,6 +3,7 @@ package fsnotify
 import (
 	"errors"
 	"fmt"
+	"io/fs"
 	"os"
 	"path/filepath"
 	"reflect"
@@ -11,6 +12,7 @@ import (
 	"strings"
 	"sync"
 	"sync/atomic"
+	"syscall"
 	"testing"
 	"time"
 
@@ -1145,6 +1147,33 @@ func TestClose(t *testing.T) {
 }
 
 func TestAdd(t *testing.T) {
+	t.Run("doesn't exist", func(t *testing.T) {
+		t.Parallel()
+		tmp := t.TempDir()
+
+		w := newWatcher(t)
+		err := w.Add(join(tmp, "non-existent"))
+		if err == nil {
+			t.Fatal("err is nil")
+		}
+
+		// Errors for this are inconsistent; should be fixed in v2. See #144
+		switch runtime.GOOS {
+		case "linux":
+			if _, ok := err.(syscall.Errno); !ok {
+				t.Errorf("wrong error type: %[1]T: %#[1]v", err)
+			}
+		case "windows":
+			if _, ok := err.(*os.SyscallError); !ok {
+				t.Errorf("wrong error type: %[1]T: %#[1]v", err)
+			}
+		default:
+			if _, ok := err.(*fs.PathError); !ok {
+				t.Errorf("wrong error type: %[1]T: %#[1]v", err)
+			}
+		}
+	})
+
 	t.Run("permission denied", func(t *testing.T) {
 		if runtime.GOOS == "windows" {
 			t.Skip("chmod doesn't work on Windows") // See if we can make a file unreadable