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RenameMemberOfImportedStructTest.swift
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RenameMemberOfImportedStructTest.swift
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//===--------------- IncrementalImportTests.swift - Swift Testing ---------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2021 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 XCTest
import TSCBasic
@_spi(Testing) import SwiftDriver
import SwiftOptions
import IncrementalTestFramework
/// Rename an imported member and see that non-users of the struct are not recompiled.
class RenameMemberOfImportedStructTest: XCTestCase {
func testRenamingMember() throws {
// MARK: - Define the imported module
let memberDefiner = Source(named: "memberDefiner", containing: """
// Define the structure
public struct ImportedStruct {
public init() {}
public func importedMember() {}
// Simulate a name change:
//# original public func nameToBeChanged() {}
//# renamed public func wasRenamed() {}
}
""")
let imported = Module(named: "imported",
containing: [memberDefiner],
producing: .library)
// MARK: - Define the main module
let main = Source(named: "main", containing: """
// Import the structure and use it
import \(imported.name)
ImportedStruct().importedMember()
""")
let other = Source(named: "other", containing: """
// Import the module but don't use the imported structure
import \(imported.name)
""")
let mainModule = Module(named: "mainModule",
containing: [main, other],
importing: [imported],
producing: .executable)
let modules = [imported, mainModule]
/// Incremental imports save a recompilation.
let whenRenaming = ExpectedCompilations(always: [memberDefiner, main],
andWhenDisabled: [other])
let steps = [
Step(adding: ["original"], building: modules, .expecting(modules.allSourcesToCompile)),
Step(adding: ["original"], building: modules, .expecting(.none)),
Step(adding: ["renamed"], building: modules, .expecting(whenRenaming)),
Step(adding: ["original"], building: modules, .expecting(whenRenaming)),
Step(adding: ["renamed"], building: modules, .expecting(whenRenaming)),
]
try IncrementalTest.perform(steps)
}
}