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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2023 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 SwiftSyntax
import XCTest
import _SwiftSyntaxTestSupport
class IncrementalParseUtilTest: XCTestCase {
public func testGetConcurrentEdits() {
let source =
"""
⏩️class⏸️struct⏪️ foo {
init() {
⏩️⏸️let bar = 10⏪️
}
⏩️func bar() {}⏸️⏪️
}
"""
let (concurrentEdits, originalSource, _) = extractEditsAndSources(from: source)
XCTAssertEqual(
concurrentEdits.edits,
[
IncrementalEdit(offset: 0, length: 5, replacement: "struct"),
IncrementalEdit(offset: 27, length: 0, replacement: "let bar = 10"),
IncrementalEdit(offset: 35, length: 13, replacement: ""),
]
)
let expectedSource =
"""
struct foo {
init() {
let bar = 10
}
}
"""
let sourceAppliedEdits = applyEdits(concurrentEdits.edits, concurrent: true, to: String(originalSource))
XCTAssertEqual(sourceAppliedEdits, expectedSource)
}
public func testReplaceMultiByteCharWithShorter() {
let source = "⏩️👨👩👧👦⏸️🎉⏪️"
let (concurrentEdits, originalSource, editedSource) = extractEditsAndSources(from: source)
XCTAssertEqual(String(originalSource), "👨👩👧👦")
XCTAssertEqual(String(editedSource), "🎉")
XCTAssertEqual(
concurrentEdits.edits,
[
IncrementalEdit(offset: 0, length: 25, replacement: "🎉")
]
)
}
public func testReplaceWithMultiByteChar() {
let source = "⏩️a⏸️👨👩👧👦⏪️"
let (concurrentEdits, originalSource, editedSource) = extractEditsAndSources(from: source)
XCTAssertEqual(String(originalSource), "a")
XCTAssertEqual(String(editedSource), "👨👩👧👦")
XCTAssertEqual(
concurrentEdits.edits,
[
IncrementalEdit(offset: 0, length: 1, replacement: "👨👩👧👦")
]
)
}
}
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