testutil

Documentation

Overview

Package testutil provides utilities for reading testdata from children directories.

Index

• func ChangeToBazelDir(curDir string)
• func CheckErrorCases(err error, expErrSubstr string) error
• type FakeFileReaderWriter
  • func NewEmptyReaderWriter() *FakeFileReaderWriter
  • func (f *FakeFileReaderWriter) AddReadFile(fp *FilePair)
  • func (f *FakeFileReaderWriter) ReadFile(_ context.Context, path string) ([]byte, error)
  • func (f *FakeFileReaderWriter) ReadFileObj(ctx context.Context, file bundle.File) ([]byte, error)
  • func (f *FakeFileReaderWriter) WriteFile(_ context.Context, path string, contents []byte, permissions os.FileMode) error
• type FilePair
  • func (f *FilePair) String() string

Functions

func ChangeToBazelDir

func ChangeToBazelDir(curDir string)

ChangeToBazelDir changes the CWD to a bazel directory if necessary. pathToDir specifies the path from the root bazel-directory to the relevant directory. If changing the directory fails, the method panics.

func CheckErrorCases

func CheckErrorCases(err error, expErrSubstr string) error

CheckErrorCases checks error cases for tests

Types

type FakeFileReaderWriter

type FakeFileReaderWriter struct {
	// ReadFiles contains mapping of path-to-file for files to-read. If
	// AlwaysRead is empty and the a path is supplied to read that is not in the
	// ReadFiles, an error will be returned.
	ReadFiles map[string]string

	// If AlwaysRead is present, always return the always read object.
	AlwaysRead string

	// ReadErr forces an error to occur during read.
	ReadErr error

	// WriteFiles records what files have been written
	WriteFiles map[string]string

	// WriteErr forces an error to occur during write.
	WriteErr error
}

FakeFileReaderWriter is a fake implementation of FileReaderWriter for unit tests.

func NewEmptyReaderWriter

func NewEmptyReaderWriter() *FakeFileReaderWriter

NewEmptyReaderWriter creates an empty FakeFileReaderWriter. It will return an error on all paths returned from reads and succeed on all writes.

func (*FakeFileReaderWriter) AddReadFile

func (f *FakeFileReaderWriter) AddReadFile(fp *FilePair)

AddReadFile adds a file to the ReadFiles map.

func (*FakeFileReaderWriter) ReadFile

func (f *FakeFileReaderWriter) ReadFile(_ context.Context, path string) ([]byte, error)

ReadFile reads a file from the map

func (*FakeFileReaderWriter) ReadFileObj

func (f *FakeFileReaderWriter) ReadFileObj(ctx context.Context, file bundle.File) ([]byte, error)

ReadFileObj reads a File object by deferring to the internal map.

func (*FakeFileReaderWriter) WriteFile

func (f *FakeFileReaderWriter) WriteFile(_ context.Context, path string, contents []byte, permissions os.FileMode) error

WriteFile checks write conditions based on path contents.

type FilePair

type FilePair struct {
	// Path is some fake file path
	Path string

	// Contents is some expected contents
	Contents string
}

FilePair is a helper for constructing a fake file reader

func (*FilePair) String

func (f *FilePair) String() string