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/*
This source file is part of the Swift.org open source project
Copyright (c) 2021-2024 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See https://swift.org/LICENSE.txt for license information
See https://swift.org/CONTRIBUTORS.txt for Swift project authors
*/
import XCTest
@testable import SwiftDocCTestUtilities
class TestFileSystemTests: XCTestCase {
func testEmpty() throws {
let fs = try TestFileSystem(folders: [])
XCTAssertEqual(fs.currentDirectoryPath, "/")
XCTAssertFalse(fs.identifier.isEmpty)
XCTAssertTrue(try fs.bundles().isEmpty)
var isDirectory = ObjCBool(false)
XCTAssertTrue(fs.fileExists(atPath: "/", isDirectory: &isDirectory))
XCTAssertEqual(fs.files.keys.sorted(), ["/", "/tmp"], "The root (/) should be the only existing path.")
XCTAssertTrue(isDirectory.boolValue)
XCTAssertFalse(fs.disableWriting)
}
func testInitialContentMultipleFolders() throws {
let folder1 = Folder(name: "main", content: [
Folder(name: "nested", content: [
TextFile(name: "myfile.txt", utf8Content: "text"),
]),
])
let folder2 = Folder(name: "additional", content: [])
let fs = try TestFileSystem(folders: [folder1, folder2])
// Verify correct folders & files
var isDirectory = ObjCBool(false)
XCTAssertTrue(fs.fileExists(atPath: "/additional", isDirectory: &isDirectory))
XCTAssertTrue(isDirectory.boolValue)
XCTAssertTrue(fs.fileExists(atPath: "/main", isDirectory: &isDirectory))
XCTAssertTrue(isDirectory.boolValue)
XCTAssertTrue(fs.fileExists(atPath: "/main/nested/myfile.txt", isDirectory: &isDirectory))
XCTAssertFalse(isDirectory.boolValue)
XCTAssertFalse(fs.fileExists(atPath: "/main/nested/myfile-non-existing.txt", isDirectory: &isDirectory))
XCTAssertFalse(isDirectory.boolValue)
// Verify correct file tree
XCTAssertEqual(fs.dump(), """
/
├─ additional/
├─ main/
│ ╰─ nested/
│ ╰─ myfile.txt
╰─ tmp/
""")
}
private func makeTestFS() throws -> TestFileSystem {
let folder = Folder(name: "main", content: [
Folder(name: "nested", content: [
TextFile(name: "myfile1.txt", utf8Content: "text"),
TextFile(name: "myfile2.txt", utf8Content: "text"),
])
])
let fs = try TestFileSystem(folders: [folder])
XCTAssertEqual(fs.dump(), """
/
├─ main/
│ ╰─ nested/
│ ├─ myfile1.txt
│ ╰─ myfile2.txt
╰─ tmp/
""")
return fs
}
func testDumpSubpath() throws {
let fs = try makeTestFS()
XCTAssertEqual(fs.dump(), """
/
├─ main/
│ ╰─ nested/
│ ├─ myfile1.txt
│ ╰─ myfile2.txt
╰─ tmp/
""")
XCTAssertEqual(fs.dump(subHierarchyFrom: "/main"), """
main/
╰─ nested/
├─ myfile1.txt
╰─ myfile2.txt
""")
XCTAssertEqual(fs.dump(subHierarchyFrom: "/main/nested"), """
nested/
├─ myfile1.txt
╰─ myfile2.txt
""")
}
func testCopyFiles() throws {
let fs = try makeTestFS()
try fs.copyItem(at: URL(string: "/main/nested/myfile1.txt")!, to: URL(string: "/main/myfile1.txt")!)
XCTAssertEqual(fs.dump(), """
/
├─ main/
│ ├─ myfile1.txt
│ ╰─ nested/
│ ├─ myfile1.txt
│ ╰─ myfile2.txt
╰─ tmp/
""")
}
func testCopyFolders() throws {
let fs = try makeTestFS()
try fs.copyItem(at: URL(string: "/main/nested")!, to: URL(string: "/copy")!)
XCTAssertEqual(fs.dump(), """
/
├─ copy/
│ ├─ myfile1.txt
│ ╰─ myfile2.txt
├─ main/
│ ╰─ nested/
│ ├─ myfile1.txt
│ ╰─ myfile2.txt
╰─ tmp/
""")
}
func testMoveFiles() throws {
let fs = try makeTestFS()
try fs.moveItem(at: URL(string: "/main/nested/myfile1.txt")!, to: URL(string: "/main/myfile1.txt")!)
XCTAssertEqual(fs.dump(), """
/
├─ main/
│ ├─ myfile1.txt
│ ╰─ nested/
│ ╰─ myfile2.txt
╰─ tmp/
""")
}
func testMoveFolders() throws {
let fs = try makeTestFS()
try fs.moveItem(at: URL(string: "/main/nested")!, to: URL(string: "/main/new")!)
XCTAssertEqual(fs.dump(), """
/
├─ main/
│ ╰─ new/
│ ├─ myfile1.txt
│ ╰─ myfile2.txt
╰─ tmp/
""")
}
func testRemoveFiles() throws {
let fs = try makeTestFS()
try fs.removeItem(at: URL(string: "/main/nested/myfile1.txt")!)
XCTAssertEqual(fs.dump(), """
/
├─ main/
│ ╰─ nested/
│ ╰─ myfile2.txt
╰─ tmp/
""")
}
func testRemoveFolders() throws {
let fs = try makeTestFS()
try fs.removeItem(at: URL(string: "/main/nested")!)
XCTAssertEqual(fs.dump(), """
/
├─ main/
╰─ tmp/
""")
}
func testCreateFiles() throws {
let fs = try makeTestFS()
// Test creating a non-empty file
XCTAssertNoThrow(try fs.createFile(at: URL(string:"/test.txt")!, contents: "12345".data(using: .utf8)!))
XCTAssertEqual(fs.contents(atPath: "/test.txt")?.count, 5)
}
func testCreateFolders() throws {
let fs = try makeTestFS()
try fs.createDirectory(at: URL(string: "/main/nested/inner")!, withIntermediateDirectories: false)
XCTAssertEqual(fs.dump(), """
/
├─ main/
│ ╰─ nested/
│ ├─ inner/
│ ├─ myfile1.txt
│ ╰─ myfile2.txt
╰─ tmp/
""")
try fs.createDirectory(at: URL(string: "/main/nested/inner2")!, withIntermediateDirectories: true)
XCTAssertEqual(fs.dump(), """
/
├─ main/
│ ╰─ nested/
│ ├─ inner/
│ ├─ inner2/
│ ├─ myfile1.txt
│ ╰─ myfile2.txt
╰─ tmp/
""")
// Test it throws when parent folder is missing
XCTAssertThrowsError(try fs.createDirectory(at: URL(string: "/main/nested/missing/inner4")!, withIntermediateDirectories: false))
// Test it creates missing parent folders
try fs.createDirectory(at: URL(string: "/main/nested/missing/inner4")!, withIntermediateDirectories: true)
XCTAssertEqual(fs.dump(), """
/
├─ main/
│ ╰─ nested/
│ ├─ inner/
│ ├─ inner2/
│ ├─ missing/
│ │ ╰─ inner4/
│ ├─ myfile1.txt
│ ╰─ myfile2.txt
╰─ tmp/
""")
}
func testCreateDeeplyNestedDirectory() throws {
let fs = try TestFileSystem(folders: [])
// Test if creates deeply nested directory structure
try fs.createDirectory(at: URL(string: "/one/two/three/four/five/six")!, withIntermediateDirectories: true)
XCTAssertEqual(fs.dump(), """
/
├─ one/
│ ╰─ two/
│ ╰─ three/
│ ╰─ four/
│ ╰─ five/
│ ╰─ six/
╰─ tmp/
""")
}
func testFileExists() throws {
let fs = try makeTestFS()
XCTAssertTrue(fs.fileExists(atPath: "/"))
XCTAssertTrue(fs.fileExists(atPath: "/main"))
XCTAssertTrue(fs.fileExists(atPath: "/main/nested/myfile1.txt"))
XCTAssertFalse(fs.fileExists(atPath: "/missing"))
XCTAssertFalse(fs.fileExists(atPath: "/main/nested/myfile3.txt"))
}
func testFileContents() throws {
let fs = try makeTestFS()
// Test it fails to write to incorrect paths
XCTAssertThrowsError(try fs.createFile(at: URL(string:"/main/missing/test.txt")!, contents: Data(base64Encoded: "TEST")!))
// Test it returns `nil` for not existing file paths
XCTAssertNil(fs.contents(atPath: "/\\//asdsj//fm--"))
XCTAssertNil(fs.contents(atPath: "/main/missing/test.txt"))
XCTAssertNil(fs.contents(atPath: "/main/missingFile.txt"))
// Test it writes a file and reads it back
XCTAssertNoThrow(try fs.createFile(at: URL(string:"/main/test.txt")!, contents: Data(base64Encoded: "TEST")!))
XCTAssertEqual(fs.contents(atPath: "/main/test.txt"), Data(base64Encoded: "TEST"))
// Copy a file and test the contents are identical with original
try fs.copyItem(at: URL(string: "/main/test.txt")!, to: URL(string: "/main/clone.txt")!)
XCTAssertTrue(fs.contentsEqual(atPath: "/main/test.txt", andPath: "/main/clone.txt"))
_ = try fs.createFile(at: URL(string:"/main/notclone.txt")!, contents: Data(base64Encoded: "TESTTEST")!)
XCTAssertFalse(fs.contentsEqual(atPath: "/main/test.txt", andPath: "/main/notclone.txt"))
XCTAssertFalse(fs.contentsEqual(atPath: "/main/test.txt", andPath: "/main/missing.txt"))
}
func testBundleUsesFileURLs() throws {
let emptySymbolGraphData = try JSONEncoder().encode(makeSymbolGraph(moduleName: "Something"))
// A docc catalog with an article, a resource, an Info.plist file, and a symbol graph file
let folders = Folder(name: "something.docc", content: [
TextFile(name: "article.md", utf8Content: ""),
DataFile(name: "image.png", data: Data()),
InfoPlist(displayName: "unit-test", identifier: "com.example"),
DataFile(name: "Something.symbols.json", data: emptySymbolGraphData)
])
let fs = try TestFileSystem(folders: [folders])
let bundles = try fs.bundles()
XCTAssertEqual(bundles.count, 1)
let bundle = try XCTUnwrap(bundles.first)
XCTAssertFalse(bundle.markupURLs.isEmpty)
XCTAssertFalse(bundle.miscResourceURLs.isEmpty)
XCTAssertFalse(bundle.symbolGraphURLs.isEmpty)
XCTAssert(bundle.markupURLs.allSatisfy(\.isFileURL))
XCTAssert(bundle.miscResourceURLs.allSatisfy(\.isFileURL))
XCTAssert(bundle.symbolGraphURLs.allSatisfy(\.isFileURL))
}
func testBundleDiscovery() throws {
let somethingSymbolGraphData = try JSONEncoder().encode(makeSymbolGraph(moduleName: "Something"))
do {
let fs = try TestFileSystem(folders: [
Folder(name: "CatalogName.docc", content: [
InfoPlist(displayName: "DisplayName", identifier: "com.example"),
DataFile(name: "Something.symbols.json", data: somethingSymbolGraphData),
])
])
let bundle = try XCTUnwrap(fs.bundles().first)
XCTAssertEqual(bundle.displayName, "DisplayName", "Display name is read from Info.plist")
XCTAssertEqual(bundle.identifier, "com.example", "Identifier is read from Info.plist")
}
do {
let fs = try TestFileSystem(folders: [
Folder(name: "CatalogName.docc", content: [
// No Info.plist
DataFile(name: "Something.symbols.json", data: somethingSymbolGraphData),
])
])
let bundle = try XCTUnwrap(fs.bundles().first)
XCTAssertEqual(bundle.displayName, "CatalogName", "Display name is derived from catalog name")
XCTAssertEqual(bundle.displayName, "CatalogName", "Identifier is derived the display name")
}
}
}
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