package remotecontext // import "github.com/docker/docker/builder/remotecontext" import ( "os" "path/filepath" "testing" "github.com/docker/docker/builder" "github.com/docker/docker/pkg/archive" "github.com/docker/docker/pkg/reexec" "github.com/pkg/errors" "gotest.tools/v3/skip" ) const ( filename = "test" contents = "contents test" ) func init() { reexec.Init() } func TestCloseRootDirectory(t *testing.T) { contextDir, err := os.MkdirTemp("", "builder-tarsum-test") defer os.RemoveAll(contextDir) if err != nil { t.Fatalf("Error with creating temporary directory: %s", err) } src := makeTestArchiveContext(t, contextDir) err = src.Close() if err != nil { t.Fatalf("Error while executing Close: %s", err) } _, err = os.Stat(src.Root()) if !errors.Is(err, os.ErrNotExist) { t.Fatal("Directory should not exist at this point") } } func TestHashFile(t *testing.T) { contextDir, cleanup := createTestTempDir(t, "", "builder-tarsum-test") defer cleanup() createTestTempFile(t, contextDir, filename, contents, 0755) tarSum := makeTestArchiveContext(t, contextDir) sum, err := tarSum.Hash(filename) if err != nil { t.Fatalf("Error when executing Stat: %s", err) } if len(sum) == 0 { t.Fatalf("Hash returned empty sum") } expected := "55dfeb344351ab27f59aa60ebb0ed12025a2f2f4677bf77d26ea7a671274a9ca" if actual := sum; expected != actual { t.Fatalf("invalid checksum. expected %s, got %s", expected, actual) } } func TestHashSubdir(t *testing.T) { contextDir, cleanup := createTestTempDir(t, "", "builder-tarsum-test") defer cleanup() contextSubdir := filepath.Join(contextDir, "builder-tarsum-test-subdir") err := os.Mkdir(contextSubdir, 0755) if err != nil { t.Fatalf("Failed to make directory: %s", contextSubdir) } testFilename := createTestTempFile(t, contextSubdir, filename, contents, 0755) tarSum := makeTestArchiveContext(t, contextDir) relativePath, err := filepath.Rel(contextDir, testFilename) if err != nil { t.Fatalf("Error when getting relative path: %s", err) } sum, err := tarSum.Hash(relativePath) if err != nil { t.Fatalf("Error when executing Stat: %s", err) } if len(sum) == 0 { t.Fatalf("Hash returned empty sum") } expected := "74a3326b8e766ce63a8e5232f22e9dd895be647fb3ca7d337e5e0a9b3da8ef28" if actual := sum; expected != actual { t.Fatalf("invalid checksum. expected %s, got %s", expected, actual) } } func TestRemoveDirectory(t *testing.T) { contextDir, cleanup := createTestTempDir(t, "", "builder-tarsum-test") defer cleanup() contextSubdir := createTestTempSubdir(t, contextDir, "builder-tarsum-test-subdir") relativePath, err := filepath.Rel(contextDir, contextSubdir) if err != nil { t.Fatalf("Error when getting relative path: %s", err) } src := makeTestArchiveContext(t, contextDir) _, err = os.Stat(filepath.Join(src.Root(), relativePath)) if err != nil { t.Fatalf("Statting %s shouldn't fail: %+v", relativePath, err) } tarSum := src.(modifiableContext) err = tarSum.Remove(relativePath) if err != nil { t.Fatalf("Error when executing Remove: %s", err) } _, err = os.Stat(filepath.Join(src.Root(), relativePath)) if !errors.Is(err, os.ErrNotExist) { t.Fatalf("Directory should not exist at this point: %+v ", err) } } func makeTestArchiveContext(t *testing.T, dir string) builder.Source { skip.If(t, os.Getuid() != 0, "skipping test that requires root") tarStream, err := archive.Tar(dir, archive.Uncompressed) if err != nil { t.Fatalf("error: %s", err) } defer tarStream.Close() tarSum, err := FromArchive(tarStream) if err != nil { t.Fatalf("Error when executing FromArchive: %s", err) } return tarSum }