/
PackageGraphPerfTests.swift
183 lines (167 loc) · 7.01 KB
/
PackageGraphPerfTests.swift
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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift 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 http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import Basics
import OrderedCollections
import PackageGraph
import PackageLoading
import PackageModel
import SPMTestSupport
import XCTest
import class TSCBasic.InMemoryFileSystem
import class TSCTestSupport.XCTestCasePerf
final class PackageGraphPerfTests: XCTestCasePerf {
func testLoading100Packages() throws {
#if !os(macOS)
try XCTSkipIf(true, "test is only supported on macOS")
#endif
let N = 100
let files = (1...N).map { "/Foo\($0)/source.swift" }
let fs = InMemoryFileSystem(emptyFiles: files)
let identityResolver = DefaultIdentityResolver()
var externalManifests = OrderedCollections.OrderedDictionary<PackageIdentity, (manifest: Manifest, fs: FileSystem)>()
var rootManifest: Manifest!
for pkg in 1...N {
let name = "Foo\(pkg)"
let location = "/" + name
let dependencies: [PackageDependency]
let targets: [TargetDescription]
// Create package.
if pkg == N {
dependencies = []
targets = [try TargetDescription(name: name, path: ".")]
} else {
let depName = "Foo\(pkg + 1)"
let depUrl = "/\(depName)"
dependencies = [.localSourceControl(
deprecatedName: depName,
path: try .init(validating: depUrl),
requirement: .upToNextMajor(from: "1.0.0")
)]
targets = [try TargetDescription(
name: name,
dependencies: [.byName(name: depName, condition: nil)],
path: "."
)]
}
// Create manifest.
let isRoot = pkg == 1
let manifest = Manifest.createManifest(
displayName: name,
path: try AbsolutePath(validating: location).appending(component: Manifest.filename),
packageKind: isRoot ? .root(try .init(validating: location)) : .localSourceControl(try .init(validating: location)),
packageLocation: location,
platforms: [],
version: "1.0.0",
toolsVersion: .v4_2,
dependencies: dependencies,
products: [
try ProductDescription(name: name, type: .library(.automatic), targets: [name])
],
targets: targets
)
if isRoot {
rootManifest = manifest
} else {
let identity = try identityResolver.resolveIdentity(for: manifest.packageKind)
externalManifests[identity] = (manifest, fs)
}
}
measure {
let observability = ObservabilitySystem.makeForTesting()
let g = try! ModulesGraph.load(
root: PackageGraphRoot(
input: PackageGraphRootInput(packages: [rootManifest.path]),
manifests: [rootManifest.path: rootManifest],
observabilityScope: observability.topScope
),
identityResolver: identityResolver,
externalManifests: externalManifests,
binaryArtifacts: [:],
availableLibraries: [], // assume no provided libraries for testing.
fileSystem: fs,
observabilityScope: observability.topScope
)
XCTAssertEqual(g.packages.count, N)
XCTAssertNoDiagnostics(observability.diagnostics)
}
}
func testEfficientCycleDetection() throws {
let lastPackageNumber = 20
let packageNumberSequence = (1...lastPackageNumber)
let fs = InMemoryFileSystem(
emptyFiles: packageNumberSequence.map({ "/Package\($0)/Sources/Target\($0)/s.swift" }) +
["/PackageA/Sources/TargetA/s.swift"]
)
let packageSequence: [Manifest] = try packageNumberSequence.map { (sequenceNumber: Int) -> Manifest in
let dependencySequence = sequenceNumber < lastPackageNumber ? Array((sequenceNumber + 1)...lastPackageNumber) : []
return Manifest.createFileSystemManifest(
displayName: "Package\(sequenceNumber)",
path: try .init(validating: "/Package\(sequenceNumber)"),
toolsVersion: .v5_7,
dependencies: try dependencySequence.map({ .fileSystem(path: try .init(validating: "/Package\($0)")) }),
products: [
try .init(
name: "Package\(sequenceNumber)",
type: .library(.dynamic),
targets: ["Target\(sequenceNumber)"]
)
],
targets: [
try .init(
name: "Target\(sequenceNumber)",
dependencies: dependencySequence.map {
.product(name: "Target\($0)", package: "Package\($0)")
}
)
]
)
}
let root = Manifest.createRootManifest(
displayName: "PackageA",
path: "/PackageA",
toolsVersion: .v5_7,
dependencies: try packageNumberSequence.map({ .fileSystem(path: try .init(validating: "/Package\($0)")) }),
targets: [try .init(name: "TargetA", dependencies: ["Target1"]) ]
)
let observability = ObservabilitySystem.makeForTesting()
let N = 1
measure {
do {
for _ in 0..<N {
_ = try loadModulesGraph(
fileSystem: fs,
manifests: [root] + packageSequence,
observabilityScope: observability.topScope
)
}
} catch {
XCTFail("Loading package graph is not expected to fail in this test.")
}
}
}
func testRecursiveDependencies() throws {
var resolvedTarget = ResolvedTarget.mock(packageIdentity: "pkg", name: "t0")
for i in 1..<1000 {
resolvedTarget = ResolvedTarget.mock(packageIdentity: "pkg", name: "t\(i)", deps: resolvedTarget)
}
let N = 10
measure {
do {
for _ in 0..<N {
_ = try resolvedTarget.recursiveTargetDependencies()
}
} catch {
XCTFail("Loading package graph is not expected to fail in this test.")
}
}
}
}