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sourcekit-lsp/Tests/SourceKitLSPTests/ExecuteCommandTests.swift

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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2019 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 the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import LSPTestSupport
import LanguageServerProtocol
import SKCore
import SKTestSupport
@_spi(Testing) import SourceKitLSP
import SwiftExtensions
import XCTest
final class ExecuteCommandTests: XCTestCase {
func testLocationSemanticRefactoring() async throws {
let testClient = try await TestSourceKitLSPClient()
let uri = DocumentURI(for: .swift)
let positions = testClient.openDocument(
"""
func foo() {
1"hello2"3
}
""",
uri: uri
)
let args = SemanticRefactorCommand(
title: "Localize String",
actionString: "source.refactoring.kind.localize.string",
positionRange: Range(positions["2"]),
textDocument: TextDocumentIdentifier(uri)
)
let metadata = SourceKitLSPCommandMetadata(textDocument: TextDocumentIdentifier(uri))
var command = args.asCommand()
command.arguments?.append(metadata.encodeToLSPAny())
let request = ExecuteCommandRequest(command: command.command, arguments: command.arguments)
let expectation = self.expectation(description: "Handle ApplyEditRequest")
let applyEditTitle = ThreadSafeBox<String?>(initialValue: nil)
let applyEditWorkspaceEdit = ThreadSafeBox<WorkspaceEdit?>(initialValue: nil)
testClient.handleSingleRequest { (req: ApplyEditRequest) -> ApplyEditResponse in
applyEditTitle.value = req.label
applyEditWorkspaceEdit.value = req.edit
expectation.fulfill()
return ApplyEditResponse(applied: true, failureReason: nil)
}
try await testClient.send(request)
try await fulfillmentOfOrThrow([expectation])
let label = try XCTUnwrap(applyEditTitle.value)
let edit = try XCTUnwrap(applyEditWorkspaceEdit.value)
XCTAssertEqual(label, "Localize String")
XCTAssertEqual(
edit,
WorkspaceEdit(changes: [
uri: [
TextEdit(
range: Range(positions["1"]),
newText: "NSLocalizedString("
),
TextEdit(
range: Range(positions["3"]),
newText: ", comment: \"\")"
),
]
])
)
}
func testRangeSemanticRefactoring() async throws {
let testClient = try await TestSourceKitLSPClient()
let uri = DocumentURI(for: .swift)
let positions = testClient.openDocument(
"""
func foo() -> String {
1⃣var a = "hello"
return a2
}
""",
uri: uri
)
let args = SemanticRefactorCommand(
title: "Extract Method",
actionString: "source.refactoring.kind.extract.function",
positionRange: positions["1"]..<positions["2"],
textDocument: TextDocumentIdentifier(uri)
)
let metadata = SourceKitLSPCommandMetadata(textDocument: TextDocumentIdentifier(uri))
var command = args.asCommand()
command.arguments?.append(metadata.encodeToLSPAny())
let request = ExecuteCommandRequest(command: command.command, arguments: command.arguments)
let expectation = self.expectation(description: "Handle ApplyEditRequest")
let applyEditTitle = ThreadSafeBox<String?>(initialValue: nil)
let applyEditWorkspaceEdit = ThreadSafeBox<WorkspaceEdit?>(initialValue: nil)
testClient.handleSingleRequest { (req: ApplyEditRequest) -> ApplyEditResponse in
applyEditTitle.value = req.label
applyEditWorkspaceEdit.value = req.edit
expectation.fulfill()
return ApplyEditResponse(applied: true, failureReason: nil)
}
try await testClient.send(request)
try await fulfillmentOfOrThrow([expectation])
let label = try XCTUnwrap(applyEditTitle.value)
let edit = try XCTUnwrap(applyEditWorkspaceEdit.value)
XCTAssertEqual(label, "Extract Method")
XCTAssertEqual(
edit,
WorkspaceEdit(changes: [
uri: [
TextEdit(
range: Range(Position(line: 0, utf16index: 0)),
newText:
"""
fileprivate func extractedFunc() -> String {
var a = "hello"
return a
}
"""
),
TextEdit(
range: positions["1"]..<positions["2"],
newText: "return extractedFunc()"
),
]
])
)
}
func testFreestandingMacroExpansion() async throws {
try await SkipUnless.canBuildMacroUsingSwiftSyntaxFromSourceKitLSPBuild()
try await SkipUnless.swiftPMSupportsExperimentalPrepareForIndexing()
let files: [RelativeFileLocation: String] = [
"MyMacros/MyMacros.swift": #"""
import SwiftCompilerPlugin
import SwiftSyntax
import SwiftSyntaxBuilder
import SwiftSyntaxMacros
public struct StringifyMacro: ExpressionMacro {
public static func expansion(
of node: some FreestandingMacroExpansionSyntax,
in context: some MacroExpansionContext
) -> ExprSyntax {
guard let argument = node.argumentList.first?.expression else {
fatalError("compiler bug: the macro does not have any arguments")
}
return "(\(argument), \(literal: argument.description))"
}
}
@main
struct MyMacroPlugin: CompilerPlugin {
let providingMacros: [Macro.Type] = [
StringifyMacro.self,
]
}
"""#,
"MyMacroClient/MyMacroClient.swift": """
@freestanding(expression)
public macro stringify<T>(_ value: T) -> (T, String) = #externalMacro(module: "MyMacros", type: "StringifyMacro")
func test() {
1⃣#2⃣stringify3⃣(1 + 2)
}
""",
]
let options = SourceKitLSPOptions.testDefault(experimentalFeatures: [.showMacroExpansions])
for peekDocuments in [false, true] {
let project = try await SwiftPMTestProject(
files: files,
manifest: SwiftPMTestProject.macroPackageManifest,
capabilities: ClientCapabilities(experimental: ["workspace/peekDocuments": .bool(peekDocuments)]),
options: options,
enableBackgroundIndexing: true
)
let (uri, positions) = try project.openDocument("MyMacroClient.swift")
let positionMarkersToBeTested = [
(start: "1", end: "1"),
(start: "2", end: "2"),
(start: "1", end: "3"),
(start: "2", end: "3"),
]
for positionMarker in positionMarkersToBeTested {
let args = ExpandMacroCommand(
positionRange: positions[positionMarker.start]..<positions[positionMarker.end],
textDocument: TextDocumentIdentifier(uri)
)
let metadata = SourceKitLSPCommandMetadata(textDocument: TextDocumentIdentifier(uri))
var command = args.asCommand()
command.arguments?.append(metadata.encodeToLSPAny())
let request = ExecuteCommandRequest(command: command.command, arguments: command.arguments)
if peekDocuments {
let expectation = self.expectation(description: "Handle Peek Documents Request")
let peekDocumentsRequestURIs = ThreadSafeBox<[DocumentURI]?>(initialValue: nil)
project.testClient.handleSingleRequest { (req: PeekDocumentsRequest) in
peekDocumentsRequestURIs.value = req.locations
expectation.fulfill()
return PeekDocumentsResponse(success: true)
}
_ = try await project.testClient.send(request)
try await fulfillmentOfOrThrow([expectation])
let urls = try XCTUnwrap(
peekDocumentsRequestURIs.value?.map {
return try XCTUnwrap(
$0.fileURL,
"Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
},
"Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
let filesContents = try urls.map { try String(contentsOf: $0, encoding: .utf8) }
XCTAssertEqual(
filesContents.only,
"(1 + 2, \"1 + 2\")",
"File doesn't contain macro expansion. Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
XCTAssertEqual(
urls.only?.lastPathComponent,
"MyMacroClient_L5C3-L5C20.swift",
"Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
} else {
let expectation = self.expectation(description: "Handle Show Document Request")
let showDocumentRequestURI = ThreadSafeBox<DocumentURI?>(initialValue: nil)
project.testClient.handleSingleRequest { (req: ShowDocumentRequest) in
showDocumentRequestURI.value = req.uri
expectation.fulfill()
return ShowDocumentResponse(success: true)
}
_ = try await project.testClient.send(request)
try await fulfillmentOfOrThrow([expectation])
let url = try XCTUnwrap(
showDocumentRequestURI.value?.fileURL,
"Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
let fileContents = try String(contentsOf: url, encoding: .utf8)
XCTAssertEqual(
fileContents,
"""
// MyMacroClient.swift @ 5:3 - 5:20
(1 + 2, \"1 + 2\")
""",
"File doesn't contain macro expansion. Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
XCTAssertEqual(
url.lastPathComponent,
"MyMacroClient.swift",
"Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
}
}
}
}
func testAttachedMacroExpansion() async throws {
try await SkipUnless.canBuildMacroUsingSwiftSyntaxFromSourceKitLSPBuild()
try await SkipUnless.swiftPMSupportsExperimentalPrepareForIndexing()
let files: [RelativeFileLocation: String] = [
"MyMacros/MyMacros.swift": #"""
import SwiftCompilerPlugin
import SwiftSyntax
import SwiftSyntaxBuilder
import SwiftSyntaxMacros
public struct DictionaryStorageMacro {}
extension DictionaryStorageMacro: MemberMacro {
public static func expansion(
of node: AttributeSyntax,
providingMembersOf declaration: some DeclGroupSyntax,
in context: some MacroExpansionContext
) throws -> [DeclSyntax] {
return ["\n var _storage: [String: Any] = [:]"]
}
}
extension DictionaryStorageMacro: MemberAttributeMacro {
public static func expansion(
of node: AttributeSyntax,
attachedTo declaration: some DeclGroupSyntax,
providingAttributesFor member: some DeclSyntaxProtocol,
in context: some MacroExpansionContext
) throws -> [AttributeSyntax] {
return [
AttributeSyntax(
leadingTrivia: [.newlines(1), .spaces(2)],
attributeName: IdentifierTypeSyntax(
name: .identifier("DictionaryStorageProperty")
)
)
]
}
}
@main
struct MyMacroPlugin: CompilerPlugin {
let providingMacros: [Macro.Type] = [
DictionaryStorageMacro.self
]
}
"""#,
"MyMacroClient/MyMacroClient.swift": #"""
@attached(memberAttribute)
@attached(member, names: named(_storage))
public macro DictionaryStorage() = #externalMacro(module: "MyMacros", type: "DictionaryStorageMacro")
1⃣@2⃣DictionaryStorage3
struct Point {
var x: Int = 1
var y: Int = 2
}
"""#,
]
let options = SourceKitLSPOptions.testDefault(experimentalFeatures: [.showMacroExpansions])
for peekDocuments in [false, true] {
let project = try await SwiftPMTestProject(
files: files,
manifest: SwiftPMTestProject.macroPackageManifest,
capabilities: ClientCapabilities(experimental: ["workspace/peekDocuments": .bool(peekDocuments)]),
options: options,
enableBackgroundIndexing: true
)
let (uri, positions) = try project.openDocument("MyMacroClient.swift")
let positionMarkersToBeTested = [
(start: "1", end: "1"),
(start: "2", end: "2"),
(start: "1", end: "3"),
(start: "2", end: "3"),
]
for positionMarker in positionMarkersToBeTested {
let args = ExpandMacroCommand(
positionRange: positions[positionMarker.start]..<positions[positionMarker.end],
textDocument: TextDocumentIdentifier(uri)
)
let metadata = SourceKitLSPCommandMetadata(textDocument: TextDocumentIdentifier(uri))
var command = args.asCommand()
command.arguments?.append(metadata.encodeToLSPAny())
let request = ExecuteCommandRequest(command: command.command, arguments: command.arguments)
if peekDocuments {
let expectation = self.expectation(description: "Handle Peek Documents Request")
let peekDocumentsRequestURIs = ThreadSafeBox<[DocumentURI]?>(initialValue: nil)
project.testClient.handleSingleRequest { (req: PeekDocumentsRequest) in
peekDocumentsRequestURIs.value = req.locations
expectation.fulfill()
return PeekDocumentsResponse(success: true)
}
_ = try await project.testClient.send(request)
try await fulfillmentOfOrThrow([expectation])
let urls = try XCTUnwrap(
peekDocumentsRequestURIs.value?.map {
return try XCTUnwrap(
$0.fileURL,
"Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
},
"Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
let filesContents = try urls.map { try String(contentsOf: $0, encoding: .utf8) }
XCTAssertEqual(
filesContents,
[
"@DictionaryStorageProperty",
"@DictionaryStorageProperty",
"var _storage: [String: Any] = [:]",
],
"Files doesn't contain correct macro expansion. Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
XCTAssertEqual(
urls.map { $0.lastPathComponent },
[
"MyMacroClient_L7C3-L7C3.swift",
"MyMacroClient_L8C3-L8C3.swift",
"MyMacroClient_L9C1-L9C1.swift",
],
"Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
} else {
let expectation = self.expectation(description: "Handle Show Document Request")
let showDocumentRequestURI = ThreadSafeBox<DocumentURI?>(initialValue: nil)
project.testClient.handleSingleRequest { (req: ShowDocumentRequest) in
showDocumentRequestURI.value = req.uri
expectation.fulfill()
return ShowDocumentResponse(success: true)
}
_ = try await project.testClient.send(request)
try await fulfillmentOfOrThrow([expectation])
let url = try XCTUnwrap(
showDocumentRequestURI.value?.fileURL,
"Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
let fileContents = try String(contentsOf: url, encoding: .utf8)
XCTAssertEqual(
fileContents,
"""
// MyMacroClient.swift @ 7:3 - 7:3
@DictionaryStorageProperty
// MyMacroClient.swift @ 8:3 - 8:3
@DictionaryStorageProperty
// MyMacroClient.swift @ 9:1 - 9:1
var _storage: [String: Any] = [:]
""",
"File doesn't contain macro expansion. Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
XCTAssertEqual(
url.lastPathComponent,
"MyMacroClient.swift",
"Failed for position range between \(positionMarker.start) and \(positionMarker.end)"
)
}
}
}
}
func testLSPCommandMetadataRetrieval() {
var req = ExecuteCommandRequest(command: "", arguments: nil)
XCTAssertNil(req.metadata)
req.arguments = [1, 2, ""]
XCTAssertNil(req.metadata)
let url = URL(fileURLWithPath: "/a.swift")
let textDocument = TextDocumentIdentifier(url)
let metadata = SourceKitLSPCommandMetadata(textDocument: textDocument)
req.arguments = [metadata.encodeToLSPAny(), 1, 2, ""]
XCTAssertNil(req.metadata)
req.arguments = [1, 2, "", [metadata.encodeToLSPAny()]]
XCTAssertNil(req.metadata)
req.arguments = [1, 2, "", metadata.encodeToLSPAny()]
XCTAssertEqual(req.metadata, metadata)
req.arguments = [metadata.encodeToLSPAny()]
XCTAssertEqual(req.metadata, metadata)
}
func testLSPCommandMetadataRemoval() {
var req = ExecuteCommandRequest(command: "", arguments: nil)
XCTAssertNil(req.argumentsWithoutSourceKitMetadata)
req.arguments = [1, 2, ""]
XCTAssertEqual(req.arguments, req.argumentsWithoutSourceKitMetadata)
let url = URL(fileURLWithPath: "/a.swift")
let textDocument = TextDocumentIdentifier(url)
let metadata = SourceKitLSPCommandMetadata(textDocument: textDocument)
req.arguments = [metadata.encodeToLSPAny(), 1, 2, ""]
XCTAssertEqual(req.arguments, req.argumentsWithoutSourceKitMetadata)
req.arguments = [1, 2, "", [metadata.encodeToLSPAny()]]
XCTAssertEqual(req.arguments, req.argumentsWithoutSourceKitMetadata)
req.arguments = [1, 2, "", metadata.encodeToLSPAny()]
XCTAssertEqual([1, 2, ""], req.argumentsWithoutSourceKitMetadata)
}
}