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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2022 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 BuildSystemIntegration
import Foundation
import LanguageServerProtocol
import SKTestSupport
import TSCBasic
import XCTest
final class CompilationDatabaseTests: XCTestCase {
func testModifyCompilationDatabase() async throws {
let project = try await MultiFileTestProject(files: [
"main.cpp": """
#if FOO
void 1️⃣foo2️⃣() {}
#else
void 3️⃣foo4️⃣() {}
#endif
int main() {
5️⃣foo6️⃣();
}
""",
"compile_flags.txt": """
-DFOO
""",
])
let (mainUri, positions) = try project.openDocument("main.cpp")
// Do a sanity check and verify that we get the expected result from a hover response before modifying the compile commands.
let highlightRequest = DocumentHighlightRequest(
textDocument: TextDocumentIdentifier(mainUri),
position: positions["5️⃣"]
)
let preChangeHighlightResponse = try await project.testClient.send(highlightRequest)
XCTAssertEqual(
preChangeHighlightResponse,
[
DocumentHighlight(range: positions["1️⃣"]..<positions["2️⃣"], kind: .text),
DocumentHighlight(range: positions["5️⃣"]..<positions["6️⃣"], kind: .text),
]
)
// Remove -DFOO from the compile commands.
let compileFlagsUri = try project.uri(for: FixedCompilationDatabase.dbName)
try "".write(to: compileFlagsUri.fileURL!, atomically: false, encoding: .utf8)
project.testClient.send(
DidChangeWatchedFilesNotification(changes: [
FileEvent(uri: compileFlagsUri, type: .changed)
])
)
// Ensure that the DidChangeWatchedFilesNotification is handled before we continue.
try await project.testClient.send(PollIndexRequest())
// DocumentHighlight should now point to the definition in the `#else` block.
let expectedPostEditHighlight = [
DocumentHighlight(range: positions["3️⃣"]..<positions["4️⃣"], kind: .text),
DocumentHighlight(range: positions["5️⃣"]..<positions["6️⃣"], kind: .text),
]
var didReceiveCorrectHighlight = false
// Updating the build settings takes a few seconds.
// Send highlight requests every second until we receive correct results.
for _ in 0..<30 {
let postChangeHighlightResponse = try await project.testClient.send(highlightRequest)
if postChangeHighlightResponse == expectedPostEditHighlight {
didReceiveCorrectHighlight = true
break
}
try await Task.sleep(for: .seconds(1))
}
XCTAssert(didReceiveCorrectHighlight)
}
}
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