From 56e44b0630448d44f7aa7f85b2098007ddbae06f Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Wed, 15 Mar 2023 15:17:11 -0600 Subject: btrfstree: Distinguish between tree-not-found and item-not-found --- lib/btrfs/btrfstree/btree_err_test.go | 64 +++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 lib/btrfs/btrfstree/btree_err_test.go (limited to 'lib/btrfs/btrfstree/btree_err_test.go') diff --git a/lib/btrfs/btrfstree/btree_err_test.go b/lib/btrfs/btrfstree/btree_err_test.go new file mode 100644 index 0000000..381bd56 --- /dev/null +++ b/lib/btrfs/btrfstree/btree_err_test.go @@ -0,0 +1,64 @@ +// Copyright (C) 2023 Luke Shumaker +// +// SPDX-License-Identifier: GPL-2.0-or-later + +package btrfstree_test + +import ( + "errors" + "fmt" + iofs "io/fs" + "testing" + + "github.com/stretchr/testify/assert" + + "git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfstree" +) + +func TestErrs(t *testing.T) { + t.Parallel() + + errItem := fmt.Errorf("my item: %w", btrfstree.ErrNoItem) + errTree := fmt.Errorf("my tree: %w", btrfstree.ErrNoTree) + + // 1. errItem + // 2. errTree + // 3. btrfstree.ErrNoItem + // 4. btrfstree.ErrNoTree + // 5. iofs.ErrNotExist + + // 1 + assert.Equal(t, errors.Is(errItem, errItem), true) + assert.Equal(t, errors.Is(errItem, errTree), false) + assert.Equal(t, errors.Is(errItem, btrfstree.ErrNoItem), true) + assert.Equal(t, errors.Is(errItem, btrfstree.ErrNoTree), false) + assert.Equal(t, errors.Is(errItem, iofs.ErrNotExist), true) + + // 2 + assert.Equal(t, errors.Is(errTree, errItem), false) + assert.Equal(t, errors.Is(errTree, errTree), true) + assert.Equal(t, errors.Is(errTree, btrfstree.ErrNoItem), false) + assert.Equal(t, errors.Is(errTree, btrfstree.ErrNoTree), true) + assert.Equal(t, errors.Is(errTree, iofs.ErrNotExist), true) + + // 3 + assert.Equal(t, errors.Is(btrfstree.ErrNoItem, errItem), false) + assert.Equal(t, errors.Is(btrfstree.ErrNoItem, errTree), false) + assert.Equal(t, errors.Is(btrfstree.ErrNoItem, btrfstree.ErrNoItem), true) + assert.Equal(t, errors.Is(btrfstree.ErrNoItem, btrfstree.ErrNoTree), false) + assert.Equal(t, errors.Is(btrfstree.ErrNoItem, iofs.ErrNotExist), true) + + // 4 + assert.Equal(t, errors.Is(btrfstree.ErrNoTree, errItem), false) + assert.Equal(t, errors.Is(btrfstree.ErrNoTree, errTree), false) + assert.Equal(t, errors.Is(btrfstree.ErrNoTree, btrfstree.ErrNoItem), false) + assert.Equal(t, errors.Is(btrfstree.ErrNoTree, btrfstree.ErrNoTree), true) + assert.Equal(t, errors.Is(btrfstree.ErrNoTree, iofs.ErrNotExist), true) + + // 5 + assert.Equal(t, errors.Is(iofs.ErrNotExist, errItem), false) + assert.Equal(t, errors.Is(iofs.ErrNotExist, errTree), false) + assert.Equal(t, errors.Is(iofs.ErrNotExist, btrfstree.ErrNoItem), false) + assert.Equal(t, errors.Is(iofs.ErrNotExist, btrfstree.ErrNoTree), false) + assert.Equal(t, errors.Is(iofs.ErrNotExist, iofs.ErrNotExist), true) +} -- cgit v1.2.3-2-g168b