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112 lines
3.3 KiB
112 lines
3.3 KiB
// Copyright (c) 2020 Proton Technologies AG |
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// |
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// This file is part of ProtonMail Bridge. |
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// |
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// ProtonMail Bridge is free software: you can redistribute it and/or modify |
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// it under the terms of the GNU General Public License as published by |
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// the Free Software Foundation, either version 3 of the License, or |
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// (at your option) any later version. |
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// |
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// ProtonMail Bridge is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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// GNU General Public License for more details. |
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// |
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// You should have received a copy of the GNU General Public License |
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// along with ProtonMail Bridge. If not, see <https://www.gnu.org/licenses/>. |
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package sum |
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import ( |
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"io/ioutil" |
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"os" |
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"path/filepath" |
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"testing" |
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"github.com/stretchr/testify/require" |
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) |
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func TestRecursiveSum(t *testing.T) { |
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tempDir, err := ioutil.TempDir("", "verify-test") |
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require.NoError(t, err) |
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createFiles(t, tempDir, |
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filepath.Join("a", "1"), |
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filepath.Join("a", "2"), |
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filepath.Join("b", "3"), |
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filepath.Join("b", "4"), |
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filepath.Join("b", "c", "5"), |
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filepath.Join("b", "c", "6"), |
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) |
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sumOriginal := sum(t, tempDir) |
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// Renaming files should produce a different checksum. |
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require.NoError(t, os.Rename(filepath.Join(tempDir, "a", "1"), filepath.Join(tempDir, "a", "11"))) |
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sumRenamed := sum(t, tempDir) |
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require.NotEqual(t, sumOriginal, sumRenamed) |
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// Reverting to the original name should produce the same checksum again. |
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require.NoError(t, os.Rename(filepath.Join(tempDir, "a", "11"), filepath.Join(tempDir, "a", "1"))) |
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require.Equal(t, sumOriginal, sum(t, tempDir)) |
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// Moving files should produce a different checksum. |
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require.NoError(t, os.Rename(filepath.Join(tempDir, "a", "1"), filepath.Join(tempDir, "1"))) |
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sumMoved := sum(t, tempDir) |
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require.NotEqual(t, sumOriginal, sumMoved) |
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// Moving files back to their original location should produce the same checksum again. |
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require.NoError(t, os.Rename(filepath.Join(tempDir, "1"), filepath.Join(tempDir, "a", "1"))) |
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require.Equal(t, sumOriginal, sum(t, tempDir)) |
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// Changing file data should produce a different checksum. |
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originalData := modifyFile(t, filepath.Join(tempDir, "a", "1"), []byte("something")) |
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require.NotEqual(t, sumOriginal, sum(t, tempDir)) |
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// Reverting file data should produce the original checksum. |
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modifyFile(t, filepath.Join(tempDir, "a", "1"), originalData) |
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require.Equal(t, sumOriginal, sum(t, tempDir)) |
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} |
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func createFiles(t *testing.T, root string, paths ...string) { |
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for _, path := range paths { |
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makeFile(t, filepath.Join(root, path)) |
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} |
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} |
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func makeFile(t *testing.T, path string) { |
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require.NoError(t, os.MkdirAll(filepath.Dir(path), 0700)) |
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f, err := os.Create(path) |
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require.NoError(t, err) |
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_, err = f.WriteString(path) |
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require.NoError(t, err) |
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require.NoError(t, f.Close()) |
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} |
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func sum(t *testing.T, path string) []byte { |
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sum, err := RecursiveSum(path, "") |
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require.NoError(t, err) |
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return sum |
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} |
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func modifyFile(t *testing.T, path string, data []byte) []byte { |
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r, err := os.Open(path) |
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require.NoError(t, err) |
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b, err := ioutil.ReadAll(r) |
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require.NoError(t, err) |
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require.NoError(t, r.Close()) |
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f, err := os.Create(path) |
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require.NoError(t, err) |
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_, err = f.Write(data) |
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require.NoError(t, err) |
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require.NoError(t, f.Close()) |
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return b |
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}
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