Tests/PackageLoadingTests/JSONSerializationTests.swift

/*
 This source file is part of the Swift.org open source project

 Copyright (c) 2014 - 2017 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 Swift project authors
*/

import Foundation
import XCTest

@testable import PackageDescription

@testable import PackageLoading

class JSONSerializationTests: XCTestCase {
    func assertEqual(package: Package, expected: String, file: StaticString = #file, line: UInt = #line) {
        let json = package.toJSON().toString()
        XCTAssertEqual(json, expected, file: file, line: line)
    }

    func testSimple() {
        let package = Package(name: "Simple")
        assertEqual(package: package, expected: """
            {"dependencies": [], "exclude": [], "name": "Simple", "targets": []}
            """)
    }
    
    func testDependencies() {
        let deps: [Package.Dependency] =
            [
                .Package(url: "https://github.com/apple/swift.git", majorVersion: 3),
                .Package(url: "https://github.com/apple/llvm.git", majorVersion: 2)
        ]
        let package = Package(name: "WithDeps", pkgConfig: nil, providers: nil, targets: [], dependencies: deps, exclude: [])
        assertEqual(package: package, expected: """
            {"dependencies": [{"url": "https://github.com/apple/swift.git", "version": {"lowerBound": "3.0.0", "upperBound": "3.9223372036854775807.9223372036854775807"}}, {"url": "https://github.com/apple/llvm.git", "version": {"lowerBound": "2.0.0", "upperBound": "2.9223372036854775807.9223372036854775807"}}], "exclude": [], "name": "WithDeps", "targets": []}
            """)
    }

    func testPkgConfig() {
        let providers: [SystemPackageProvider] = [
            .Brew("BrewPackage"),
            .Apt("AptPackage")
        ]
        let package = Package(name: "PkgPackage", pkgConfig: "PkgPackage-1.0", providers: providers)
        assertEqual(package: package, expected: """
            {"dependencies": [], "exclude": [], "name": "PkgPackage", "pkgConfig": "PkgPackage-1.0", "providers": [{"name": "Brew", "value": "BrewPackage"}, {"name": "Apt", "value": "AptPackage"}], "targets": []}
            """)
    }

    func testExclude() {
        let package = Package(name: "Exclude", exclude: ["pikachu", "bulbasaur"])
        assertEqual(package: package, expected: """
            {"dependencies": [], "exclude": ["pikachu", "bulbasaur"], "name": "Exclude", "targets": []}
            """)
    }
    
    func testTargets() {
        let t1 = Target(name: "One")
        let t2 = Target(name: "Two", dependencies: [.Target(name: "One")])
        let package = Package(name: "Targets", targets: [t1, t2])
        assertEqual(package: package, expected: """
            {"dependencies": [], "exclude": [], "name": "Targets", "targets": [{"dependencies": [], "name": "One"}, {"dependencies": ["One"], "name": "Two"}]}
            """)
    }
    
    static var allTests = [
        ("testSimple", testSimple),
        ("testDependencies", testDependencies),
        ("testPkgConfig", testPkgConfig),
        ("testExclude", testExclude),
        ("testTargets", testTargets),
    ]
}