kubernetes/test/e2e/framework/testfiles/testfiles.go

var filesources …

// AddFileSource registers another provider for files that may be
// needed at runtime. Should be called during initialization of a test
// binary.
func AddFileSource(filesource FileSource) { … }

type FileSource …

// Read tries to retrieve the desired file content from
// one of the registered file sources.
func Read(filePath string) ([]byte, error) { … }

// Exists checks whether a file could be read. Unexpected errors
// are handled by calling the fail function, which then should
// abort the current test.
func Exists(filePath string) (bool, error) { … }

type RootFileSource …

// ReadTestFile looks for the file relative to the configured
// root directory. If the path is already absolute, for example
// in a test that has its own method of determining where
// files are, then the path will be used directly.
func (r RootFileSource) ReadTestFile(filePath string) ([]byte, error) { … }

// DescribeFiles explains that it looks for files inside a certain
// root directory.
func (r RootFileSource) DescribeFiles() string { … }

type EmbeddedFileSource …

// ReadTestFile looks for an embedded file with the given path.
func (e EmbeddedFileSource) ReadTestFile(filepath string) ([]byte, error) { … }

// DescribeFiles explains that it is looking inside an embedded filesystem
func (e EmbeddedFileSource) DescribeFiles() string { … }

func (e *EmbeddedFileSource) populateFileList() { … }