InMemoryVfs class final

A stateful, byte-backed Vfs.

Scripted results are FIFO and short-circuit the corresponding operation, which supports deterministic fault injection without a mocking framework.

Implemented types

• Vfs

Constructors

InMemoryVfs({Map<String, List<int>> files = const <String, List<int>>{}, Iterable<String> directories = const <String>['/'], DateTime? modifiedAt})

Creates a filesystem fake seeded with files and directories.

Properties

directories → Set<String>

Snapshot of the stored directories.

no setter

files → Map<String, List<int>>

Snapshot of the stored files, deeply unmodifiable.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

modifiedAt → DateTime

Modified instant reported for every entry.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

createDirectory(String path, {bool recursive = false}) → Future<Result<void>>

Creates the directory at path.

override

delete(String path, {bool recursive = false}) → Future<Result<void>>

Deletes the file or directory at path.

override

enqueueCreateDirectoryResult(Result<void> result) → void

Scripts the next createDirectory answer.

enqueueDeleteResult(Result<void> result) → void

Scripts the next delete answer.

enqueueExistsResult(Result<bool> result) → void

Scripts the next exists answer.

enqueueListResult(Result<List<VfsEntry>> result) → void

Scripts the next list answer.

enqueueReadBytesResult(Result<List<int>> result) → void

Scripts the next readBytes answer.

enqueueReadTextResult(Result<String> result) → void

Scripts the next readText answer.

enqueueStatResult(Result<VfsStat> result) → void

Scripts the next stat answer.

enqueueWriteBytesResult(Result<void> result) → void

Scripts the next writeBytes answer.

enqueueWriteTextResult(Result<void> result) → void

Scripts the next writeText answer.

exists(String path) → Future<Result<bool>>

Reports whether path resolves to anything.

override

list(String path, {bool recursive = false}) → Future<Result<List<VfsEntry>>>

Lists the entries directly (or, when recursive, transitively) under path.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

readBytes(String path) → Future<Result<List<int>>>

Reads path as bytes.

override

readText(String path) → Future<Result<String>>

Reads path as UTF-8 text.

override

stat(String path) → Future<Result<VfsStat>>

Describes path without listing its parent.

override

toString() → String

A string representation of this object.

inherited

writeBytes(String path, List<int> bytes, {bool createParents = false}) → Future<Result<void>>

Writes bytes to path, optionally creating missing parents.

override

writeText(String path, String content, {bool createParents = false}) → Future<Result<void>>

Writes content to path as UTF-8, optionally creating missing parents.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

normalizePath(String path) → String

Collapses empty segments and forces a leading slash.