package remotecontext // import "github.com/docker/docker/builder/remotecontext" import ( "io/ioutil" "os" "path/filepath" "testing" ) // createTestTempDir creates a temporary directory for testing. // It returns the created path and a cleanup function which is meant to be used as deferred call. // When an error occurs, it terminates the test. func createTestTempDir(t *testing.T, dir, prefix string) (string, func()) { path, err := ioutil.TempDir(dir, prefix) if err != nil { t.Fatalf("Error when creating directory %s with prefix %s: %s", dir, prefix, err) } return path, func() { err = os.RemoveAll(path) if err != nil { t.Fatalf("Error when removing directory %s: %s", path, err) } } } // createTestTempSubdir creates a temporary directory for testing. // It returns the created path but doesn't provide a cleanup function, // so createTestTempSubdir should be used only for creating temporary subdirectories // whose parent directories are properly cleaned up. // When an error occurs, it terminates the test. func createTestTempSubdir(t *testing.T, dir, prefix string) string { path, err := ioutil.TempDir(dir, prefix) if err != nil { t.Fatalf("Error when creating directory %s with prefix %s: %s", dir, prefix, err) } return path } // createTestTempFile creates a temporary file within dir with specific contents and permissions. // When an error occurs, it terminates the test func createTestTempFile(t *testing.T, dir, filename, contents string, perm os.FileMode) string { filePath := filepath.Join(dir, filename) err := ioutil.WriteFile(filePath, []byte(contents), perm) if err != nil { t.Fatalf("Error when creating %s file: %s", filename, err) } return filePath }