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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2018 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 LanguageServerProtocol
import LanguageServerProtocolExtensions
import SKOptions
import SKTestSupport
import XCTest
/// Tests that test the overall state of the SourceKit-LSP server, that's not really specific to any language
final class LifecycleTests: XCTestCase {
func testInitLocal() async throws {
let testClient = try await TestSourceKitLSPClient(initialize: false)
let initResult = try await testClient.send(
InitializeRequest(
processId: nil,
rootPath: nil,
rootURI: nil,
initializationOptions: nil,
capabilities: ClientCapabilities(workspace: nil, textDocument: nil),
trace: .off,
workspaceFolders: nil
)
)
guard case .options(let syncOptions) = initResult.capabilities.textDocumentSync else {
XCTFail("Unexpected textDocumentSync property")
return
}
XCTAssertEqual(syncOptions.openClose, true)
XCTAssertNotNil(initResult.capabilities.completionProvider)
}
func testEmptySourceKitLSPOptionsCanBeDecoded() {
// Check that none of the keys in `SourceKitLSPOptions` are required.
XCTAssertEqual(
try JSONDecoder().decode(SourceKitLSPOptions.self, from: XCTUnwrap("{}".data(using: .utf8))),
SourceKitLSPOptions(swiftPM: nil, fallbackBuildSystem: nil, compilationDatabase: nil, index: nil, logging: nil)
)
}
func testCancellation() async throws {
let testClient = try await TestSourceKitLSPClient()
let uri = DocumentURI(for: .swift)
let positions = testClient.openDocument(
"""
struct A: ExpressibleByIntegerLiteral { init(integerLiteral value: Int) {} }
struct B: ExpressibleByIntegerLiteral { init(integerLiteral value: Int) {} }
struct C: ExpressibleByIntegerLiteral { init(integerLiteral value: Int) {} }
func + (lhs: A, rhs: B) -> A { fatalError() }
func + (lhs: B, rhs: C) -> A { fatalError() }
func + (lhs: C, rhs: A) -> A { fatalError() }
func + (lhs: B, rhs: A) -> B { fatalError() }
func + (lhs: C, rhs: B) -> B { fatalError() }
func + (lhs: A, rhs: C) -> B { fatalError() }
func + (lhs: C, rhs: B) -> C { fatalError() }
func + (lhs: B, rhs: C) -> C { fatalError() }
func + (lhs: A, rhs: A) -> C { fatalError() }
class Foo {
func slow(x: Invalid1, y: Invalid2) {
1️⃣ let x: C = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 2️⃣
}
struct Foo {
let 3️⃣fooMember: String
}
func fast(a: Foo) {
a.4️⃣
}
}
""",
uri: uri
)
let completionRequestReplied = self.expectation(description: "completion request replied")
let requestID = RequestID.string("cancellation-test")
testClient.server.handle(
CompletionRequest(textDocument: TextDocumentIdentifier(uri), position: positions["2️⃣"]),
id: requestID
) { reply in
switch reply {
case .success:
XCTFail("Expected completion request to fail because it was cancelled")
case .failure(let error):
XCTAssertEqual(error, ResponseError.cancelled)
}
completionRequestReplied.fulfill()
}
testClient.send(CancelRequestNotification(id: requestID))
try await fulfillmentOfOrThrow([completionRequestReplied])
let fastStartDate = Date()
let fastReply = try await testClient.send(
CompletionRequest(textDocument: TextDocumentIdentifier(uri), position: positions["4️⃣"])
)
XCTAssert(!fastReply.items.isEmpty)
XCTAssertLessThan(Date().timeIntervalSince(fastStartDate), 2, "Fast request wasn't actually fast")
// Remove the slow-to-typecheck line. This causes the implicit diagnostics request for the push diagnostics
// notification to get cancelled, which unblocks sourcekitd for later tests.
testClient.send(
DidChangeTextDocumentNotification(
textDocument: VersionedTextDocumentIdentifier(uri, version: 2),
contentChanges: [
TextDocumentContentChangeEvent(range: positions["1️⃣"]..<positions["2️⃣"], text: "")
]
)
)
let cursorInfoStartDate = Date()
// Check that semantic functionality based on the AST is working again.
let symbolInfo = try await testClient.send(
SymbolInfoRequest(textDocument: TextDocumentIdentifier(uri), position: positions["3️⃣"])
)
XCTAssertLessThan(
Date().timeIntervalSince(cursorInfoStartDate),
2,
"Cursor info request wasn't fast. sourcekitd still blocked?"
)
XCTAssertGreaterThan(symbolInfo.count, 0)
}
func testEditWithOutOfRangeLine() async throws {
let testClient = try await TestSourceKitLSPClient()
let uri = DocumentURI(for: .swift)
testClient.openDocument("", uri: uri)
// Check that we don't crash.
testClient.send(
DidChangeTextDocumentNotification(
textDocument: VersionedTextDocumentIdentifier(uri, version: 2),
contentChanges: [TextDocumentContentChangeEvent(range: Range(Position(line: 2, utf16index: 0)), text: "new")]
)
)
}
func testEditWithOutOfRangeColumn() async throws {
let testClient = try await TestSourceKitLSPClient()
let uri = DocumentURI(for: .swift)
testClient.openDocument("", uri: uri)
testClient.send(
DidChangeTextDocumentNotification(
textDocument: VersionedTextDocumentIdentifier(uri, version: 2),
contentChanges: [TextDocumentContentChangeEvent(range: Range(Position(line: 0, utf16index: 4)), text: "new")]
)
)
}
func testOpenFileWithoutPath() async throws {
let testClient = try await TestSourceKitLSPClient()
testClient.openDocument("", uri: DocumentURI(try XCTUnwrap(URL(string: "file://"))), language: .swift)
}
}
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