Facilities for overriding various APIs ofdart:io with mockimplementations.

This abstract base class should be extended with overrides for theoperations needed to construct mocks. The implementations in this base classdefault to the actualdart:io implementation. For example:

class MyDirectory implements Directory {  ...  // An implementation of the Directory interface  ...}void main() {  IOOverrides.runZoned(() {    ...    // Operations will use MyDirectory instead of dart:io's Directory    // implementation whenever Directory is used.    ...  }, createDirectory: (String path) => new MyDirectory(path));}

Constructors

IOOverrides()

Properties

hashCode→int

The hash code for this object.

no setterinherited

runtimeType→Type

A representation of the runtime type of the object.

no setterinherited

stderr→Stdout

The standard output stream of errors written by this program.

no setter

stdin→Stdin

The standard input stream of data read by this program.

no setter

stdout→Stdout

The standard output stream of data written by this program.

no setter

Methods

createDirectory(Stringpath)→Directory

Creates a newDirectory object for the givenpath.

createFile(Stringpath)→File

Creates a newFile object for the givenpath.

createLink(Stringpath)→Link

Returns a newLink object for the givenpath.

exit(intcode)→ Never

Exit the Dart VM process immediately with the given exit code.

fseGetType(Stringpath,boolfollowLinks)→Future<FileSystemEntityType>

Asynchronously returns theFileSystemEntityType forpath.

fseGetTypeSync(Stringpath,boolfollowLinks)→FileSystemEntityType

Returns theFileSystemEntityType forpath.

fseIdentical(Stringpath1,Stringpath2)→Future<bool>

Asynchronously returnstrue ifpath1 andpath2 are paths to thesame file system object.

fseIdenticalSync(Stringpath1,Stringpath2)→bool

Returnstrue ifpath1 andpath2 are paths to thesame file system object.

fsWatch(Stringpath,intevents,boolrecursive)→Stream<FileSystemEvent>

Returns aStream ofFileSystemEvents.

fsWatchIsSupported()→bool

Returnstrue whenFileSystemEntity.watch is supported.

getCurrentDirectory()→Directory

Returns the current working directory.

getSystemTempDirectory()→Directory

Returns the system temporary directory.

noSuchMethod(Invocationinvocation)→ dynamic

Invoked when a nonexistent method or property is accessed.

inherited

serverSocketBind(dynamicaddress,intport, {intbacklog =0,boolv6Only =false,boolshared =false})→Future<ServerSocket>

Asynchronously returns aServerSocket that connects to the given addressand port when successful.

setCurrentDirectory(Stringpath)→ void

Sets the current working directory to bepath.

socketConnect(dynamichost,intport, {dynamicsourceAddress,intsourcePort =0,Duration?timeout})→Future<Socket>

Asynchronously returns aSocket connected to the given host and port.

socketStartConnect(dynamichost,intport, {dynamicsourceAddress,intsourcePort =0})→Future<ConnectionTask<Socket>>

Asynchronously returns aConnectionTask that connects to the given hostand port when successful.

stat(Stringpath)→Future<FileStat>

Asynchronously returnsFileStat information forpath.

statSync(Stringpath)→FileStat

ReturnsFileStat information forpath.

toString()→String

A string representation of this object.

inherited

Operators

operator ==(Objectother)→bool

The equality operator.

inherited

Static Properties

current→IOOverrides?

no setter

global←IOOverrides?

TheIOOverrides to use in the rootZone.

no getter

Static Methods

runWithIOOverrides<R>(Rbody(),IOOverridesoverrides)→ R

Runsbody in a freshZone using the overrides found inoverrides.

runZoned<R>(Rbody(), {DirectorycreateDirectory(String)?,DirectorygetCurrentDirectory()?,voidsetCurrentDirectory(String)?,DirectorygetSystemTempDirectory()?,FilecreateFile(String)?,Future<FileStat>stat(String)?,FileStatstatSync(String)?,Future<bool>fseIdentical(String,String)?,boolfseIdenticalSync(String,String)?,Future<FileSystemEntityType>fseGetType(String,bool)?,FileSystemEntityTypefseGetTypeSync(String,bool)?,Stream<FileSystemEvent>fsWatch(String,int,bool)?,boolfsWatchIsSupported()?,LinkcreateLink(String)?,Future<Socket>socketConnect(dynamic,int, {dynamicsourceAddress,intsourcePort,Duration?timeout})?,Future<ConnectionTask<Socket>>socketStartConnect(dynamic,int, {dynamicsourceAddress,intsourcePort})?,Future<ServerSocket>serverSocketBind(dynamic,int, {intbacklog,boolshared,boolv6Only})?,Stdinstdin()?,Stdoutstdout()?,Stdoutstderr()?,Neverexit(int)?})→ R

Runsbody in a freshZone using the provided overrides.