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chore(coderd): improve tests for tar<->zip conversion #12477
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51dd5a0
chore(coderd): improve tests for tar<->zip conversion
johnstcn 16b96a4
fixup! chore(coderd): improve tests for tar<->zip conversion
johnstcn 0094b96
fixup! fixup! chore(coderd): improve tests for tar<->zip conversion
johnstcn ad47dc9
fix(coderd): set mode and modtime correctly when converting from zip …
johnstcn 28f8e52
Merge remote-tracking branch 'origin/main' into cj/fileszip-tests
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,213 @@ | ||
| package coderd_test | ||
|
|
||
| import ( | ||
| "archive/tar" | ||
| "archive/zip" | ||
| "bytes" | ||
| "io" | ||
| "io/fs" | ||
| "os" | ||
| "os/exec" | ||
| "path/filepath" | ||
| "runtime" | ||
| "strings" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| "golang.org/x/xerrors" | ||
|
|
||
| "github.com/coder/coder/v2/coderd" | ||
| "github.com/coder/coder/v2/testutil" | ||
| ) | ||
|
|
||
| func TestCreateTarFromZip(t *testing.T) { | ||
| t.Parallel() | ||
| if runtime.GOOS != "linux" { | ||
| t.Skip("skipping this test on non-Linux platform") | ||
| } | ||
|
|
||
| // Read a zip file we prepared earlier | ||
| ctx := testutil.Context(t, testutil.WaitShort) | ||
| zipBytes, err := os.ReadFile(filepath.Join("testdata", "test.zip")) | ||
| require.NoError(t, err, "failed to read sample zip file") | ||
| // Assert invariant | ||
| assertSampleZipFile(t, zipBytes) | ||
|
|
||
| zr, err := zip.NewReader(bytes.NewReader(zipBytes), int64(len(zipBytes))) | ||
| require.NoError(t, err, "failed to parse sample zip file") | ||
|
|
||
| tarBytes, err := coderd.CreateTarFromZip(zr) | ||
| require.NoError(t, err, "failed to convert zip to tar") | ||
|
|
||
| assertSampleTarFile(t, tarBytes) | ||
|
|
||
| tempDir := t.TempDir() | ||
| tempFilePath := filepath.Join(tempDir, "test.tar") | ||
| err = os.WriteFile(tempFilePath, tarBytes, 0o600) | ||
| require.NoError(t, err, "failed to write converted tar file") | ||
|
|
||
| cmd := exec.CommandContext(ctx, "tar", "--extract", "--verbose", "--file", tempFilePath, "--directory", tempDir) | ||
| require.NoError(t, cmd.Run(), "failed to extract converted tar file") | ||
| assertExtractedFiles(t, tempDir, true) | ||
| } | ||
|
|
||
| func TestCreateZipFromTar(t *testing.T) { | ||
| t.Parallel() | ||
| if runtime.GOOS != "linux" { | ||
| t.Skip("skipping this test on non-Linux platform") | ||
| } | ||
|
|
||
| tarBytes, err := os.ReadFile(filepath.Join("testdata", "test.tar")) | ||
| require.NoError(t, err, "failed to read sample tar file") | ||
|
|
||
| tr := tar.NewReader(bytes.NewReader(tarBytes)) | ||
| zipBytes, err := coderd.CreateZipFromTar(tr) | ||
| require.NoError(t, err) | ||
|
|
||
| assertSampleZipFile(t, zipBytes) | ||
|
|
||
| tempDir := t.TempDir() | ||
| tempFilePath := filepath.Join(tempDir, "test.zip") | ||
| err = os.WriteFile(tempFilePath, zipBytes, 0o600) | ||
| require.NoError(t, err, "failed to write converted zip file") | ||
|
|
||
| ctx := testutil.Context(t, testutil.WaitShort) | ||
| cmd := exec.CommandContext(ctx, "unzip", tempFilePath, "-d", tempDir) | ||
| require.NoError(t, cmd.Run(), "failed to extract converted zip file") | ||
|
|
||
| assertExtractedFiles(t, tempDir, false) | ||
| } | ||
|
|
||
| // nolint:revive // this is a control flag but it's in a unit test | ||
| func assertExtractedFiles(t *testing.T, dir string, checkModePerm bool) { | ||
| t.Helper() | ||
|
|
||
| _ = filepath.Walk(dir, func(path string, info fs.FileInfo, err error) error { | ||
| relPath := strings.TrimPrefix(path, dir) | ||
| switch relPath { | ||
| case "", "/test.zip", "/test.tar": // ignore | ||
| case "/test": | ||
| stat, err := os.Stat(path) | ||
| assert.NoError(t, err, "failed to stat path %q", path) | ||
| assert.True(t, stat.IsDir(), "expected path %q to be a directory") | ||
| if checkModePerm { | ||
| assert.Equal(t, fs.ModePerm&0o755, stat.Mode().Perm(), "expected mode 0755 on directory") | ||
| } | ||
| assert.Equal(t, archiveRefTime(t).UTC(), stat.ModTime().UTC(), "unexpected modtime of %q", path) | ||
| case "/test/hello.txt": | ||
| stat, err := os.Stat(path) | ||
| assert.NoError(t, err, "failed to stat path %q", path) | ||
| assert.False(t, stat.IsDir(), "expected path %q to be a file") | ||
| if checkModePerm { | ||
| assert.Equal(t, fs.ModePerm&0o644, stat.Mode().Perm(), "expected mode 0644 on file") | ||
| } | ||
| bs, err := os.ReadFile(path) | ||
| assert.NoError(t, err, "failed to read file %q", path) | ||
| assert.Equal(t, "hello", string(bs), "unexpected content in file %q", path) | ||
| case "/test/dir": | ||
| stat, err := os.Stat(path) | ||
| assert.NoError(t, err, "failed to stat path %q", path) | ||
| assert.True(t, stat.IsDir(), "expected path %q to be a directory") | ||
| if checkModePerm { | ||
| assert.Equal(t, fs.ModePerm&0o755, stat.Mode().Perm(), "expected mode 0755 on directory") | ||
| } | ||
| case "/test/dir/world.txt": | ||
| stat, err := os.Stat(path) | ||
| assert.NoError(t, err, "failed to stat path %q", path) | ||
| assert.False(t, stat.IsDir(), "expected path %q to be a file") | ||
| if checkModePerm { | ||
| assert.Equal(t, fs.ModePerm&0o644, stat.Mode().Perm(), "expected mode 0644 on file") | ||
| } | ||
| bs, err := os.ReadFile(path) | ||
| assert.NoError(t, err, "failed to read file %q", path) | ||
| assert.Equal(t, "world", string(bs), "unexpected content in file %q", path) | ||
| default: | ||
| assert.Fail(t, "unexpected path", relPath) | ||
| } | ||
|
|
||
| return nil | ||
| }) | ||
| } | ||
|
|
||
| func assertSampleTarFile(t *testing.T, tarBytes []byte) { | ||
| t.Helper() | ||
|
|
||
| tr := tar.NewReader(bytes.NewReader(tarBytes)) | ||
| for { | ||
| hdr, err := tr.Next() | ||
| if err != nil { | ||
| if err == io.EOF { | ||
| return | ||
| } | ||
| require.NoError(t, err) | ||
| } | ||
|
|
||
| // Note: ignoring timezones here. | ||
| require.Equal(t, archiveRefTime(t).UTC(), hdr.ModTime.UTC()) | ||
|
|
||
| switch hdr.Name { | ||
| case "test/": | ||
| require.Equal(t, hdr.Typeflag, byte(tar.TypeDir)) | ||
| case "test/hello.txt": | ||
| require.Equal(t, hdr.Typeflag, byte(tar.TypeReg)) | ||
| bs, err := io.ReadAll(tr) | ||
| if err != nil && !xerrors.Is(err, io.EOF) { | ||
| require.NoError(t, err) | ||
| } | ||
| require.Equal(t, "hello", string(bs)) | ||
| case "test/dir/": | ||
| require.Equal(t, hdr.Typeflag, byte(tar.TypeDir)) | ||
| case "test/dir/world.txt": | ||
| require.Equal(t, hdr.Typeflag, byte(tar.TypeReg)) | ||
| bs, err := io.ReadAll(tr) | ||
| if err != nil && !xerrors.Is(err, io.EOF) { | ||
| require.NoError(t, err) | ||
| } | ||
| require.Equal(t, "world", string(bs)) | ||
| default: | ||
| require.Failf(t, "unexpected file in tar", hdr.Name) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func assertSampleZipFile(t *testing.T, zipBytes []byte) { | ||
| t.Helper() | ||
|
|
||
| zr, err := zip.NewReader(bytes.NewReader(zipBytes), int64(len(zipBytes))) | ||
| require.NoError(t, err) | ||
|
|
||
| for _, f := range zr.File { | ||
| // Note: ignoring timezones here. | ||
| require.Equal(t, archiveRefTime(t).UTC(), f.Modified.UTC()) | ||
| switch f.Name { | ||
| case "test/", "test/dir/": | ||
| // directory | ||
| case "test/hello.txt": | ||
| rc, err := f.Open() | ||
| require.NoError(t, err) | ||
| bs, err := io.ReadAll(rc) | ||
| _ = rc.Close() | ||
| require.NoError(t, err) | ||
| require.Equal(t, "hello", string(bs)) | ||
| case "test/dir/world.txt": | ||
| rc, err := f.Open() | ||
| require.NoError(t, err) | ||
| bs, err := io.ReadAll(rc) | ||
| _ = rc.Close() | ||
| require.NoError(t, err) | ||
| require.Equal(t, "world", string(bs)) | ||
| default: | ||
| require.Failf(t, "unexpected file in zip", f.Name) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // archiveRefTime is the Go reference time. The contents of the sample tar and zip files | ||
| // in testdata/ all have their modtimes set to the below in some timezone. | ||
| func archiveRefTime(t *testing.T) time.Time { | ||
| locMST, err := time.LoadLocation("MST") | ||
| require.NoError(t, err, "failed to load MST timezone") | ||
| return time.Date(2006, 1, 2, 3, 4, 5, 0, locMST) | ||
| } | ||
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Windows is no bueno?
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Generally yes, but I'm not going to assume the presence of
tarandunzipon Windows for this test :-)