Edit attachment permission (#36227) (#36723)

Automatic Merge

server/channels/api4/post_utils_test.go

@@ -0,0 +1,94 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package api4
+
+import (
+	"testing"
+
+	"github.com/mattermost/mattermost/server/v8/channels/utils"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSameFileIDs(t *testing.T) {
+	tests := []struct {
+		name     string
+		a        []string
+		b        []string
+		expected bool
+	}{
+		{
+			name:     "both empty",
+			a:        []string{},
+			b:        []string{},
+			expected: true,
+		},
+		{
+			name:     "both nil",
+			a:        nil,
+			b:        nil,
+			expected: true,
+		},
+		{
+			name:     "same files same order",
+			a:        []string{"file1", "file2", "file3"},
+			b:        []string{"file1", "file2", "file3"},
+			expected: true,
+		},
+		{
+			name:     "same files different order",
+			a:        []string{"file3", "file1", "file2"},
+			b:        []string{"file1", "file2", "file3"},
+			expected: true,
+		},
+		{
+			name:     "one file added",
+			a:        []string{"file1", "file2", "file3"},
+			b:        []string{"file1", "file2"},
+			expected: false,
+		},
+		{
+			name:     "one file removed",
+			a:        []string{"file1"},
+			b:        []string{"file1", "file2"},
+			expected: false,
+		},
+		{
+			name:     "different files same length",
+			a:        []string{"file1", "file2"},
+			b:        []string{"file1", "file3"},
+			expected: false,
+		},
+		{
+			name:     "duplicate IDs in a",
+			a:        []string{"file1", "file1"},
+			b:        []string{"file1", "file2"},
+			expected: false,
+		},
+		{
+			name:     "duplicate IDs same in both",
+			a:        []string{"file1", "file1"},
+			b:        []string{"file1", "file1"},
+			expected: true,
+		},
+		{
+			name:     "empty vs non-empty",
+			a:        []string{},
+			b:        []string{"file1"},
+			expected: false,
+		},
+		{
+			name:     "nil vs non-empty",
+			a:        nil,
+			b:        []string{"file1"},
+			expected: false,
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			result := utils.SliceEqualUnordered(tc.a, tc.b)
+			assert.Equal(t, tc.expected, result)
+		})
+	}
+}