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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift open source project
//
// Copyright (c) 2021 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
//
//===----------------------------------------------------------------------===//
@_spi(SwiftPMInternal)
@testable
import Basics
import XCTest
final class EnvironmentTests: XCTestCase {
func test_init() {
let environment = Environment()
XCTAssertTrue(environment.isEmpty)
}
func test_subscript() {
var environment = Environment()
let key = EnvironmentKey("TestKey")
environment[key] = "TestValue"
XCTAssertEqual(environment[key], "TestValue")
}
func test_initDictionaryFromSelf() {
let dictionary = [
"TestKey": "TestValue",
"testKey": "TestValue2",
]
let environment = Environment(dictionary)
XCTAssertEqual(environment["TestKey"], "TestValue")
#if os(Windows)
XCTAssertEqual(environment.count, 1)
#else
XCTAssertEqual(environment.count, 2)
#endif
}
func test_initSelfFromDictionary() {
let dictionary = ["TestKey": "TestValue"]
let environment = Environment(dictionary)
XCTAssertEqual(environment["TestKey"], "TestValue")
}
func path(_ components: String...) -> String {
components.joined(separator: Environment.pathEntryDelimiter)
}
func test_prependPath() {
var environment = Environment()
let key = EnvironmentKey(UUID().uuidString)
XCTAssertNil(environment[key])
environment.prependPath(key: key, value: "/bin")
XCTAssertEqual(environment[key], path("/bin"))
environment.prependPath(key: key, value: "/usr/bin")
XCTAssertEqual(environment[key], path("/usr/bin", "/bin"))
environment.prependPath(key: key, value: "/usr/local/bin")
XCTAssertEqual(environment[key], path("/usr/local/bin", "/usr/bin", "/bin"))
environment.prependPath(key: key, value: "")
XCTAssertEqual(environment[key], path("/usr/local/bin", "/usr/bin", "/bin"))
}
func test_appendPath() {
var environment = Environment()
let key = EnvironmentKey(UUID().uuidString)
XCTAssertNil(environment[key])
environment.appendPath(key: key, value: "/bin")
XCTAssertEqual(environment[key], path("/bin"))
environment.appendPath(key: key, value: "/usr/bin")
XCTAssertEqual(environment[key], path("/bin", "/usr/bin"))
environment.appendPath(key: key, value: "/usr/local/bin")
XCTAssertEqual(environment[key], path("/bin", "/usr/bin", "/usr/local/bin"))
environment.appendPath(key: key, value: "")
XCTAssertEqual(environment[key], path("/bin", "/usr/bin", "/usr/local/bin"))
}
func test_pathEntryDelimiter() {
#if os(Windows)
XCTAssertEqual(Environment.pathEntryDelimiter, ";")
#else
XCTAssertEqual(Environment.pathEntryDelimiter, ":")
#endif
}
/// Important: This test is inherently race-prone, if it is proven to be
/// flaky, it should run in a singled threaded environment/removed entirely.
func test_current() {
XCTAssertEqual(
Environment.current["PATH"],
ProcessInfo.processInfo.environment["PATH"])
}
/// Important: This test is inherently race-prone, if it is proven to be
/// flaky, it should run in a singled threaded environment/removed entirely.
func test_makeCustom() async throws {
let key = EnvironmentKey(UUID().uuidString)
let value = "TestValue"
var customEnvironment = Environment()
customEnvironment[key] = value
XCTAssertNil(Environment.current[key])
try Environment.makeCustom(customEnvironment) {
XCTAssertEqual(Environment.current[key], value)
}
XCTAssertNil(Environment.current[key])
}
/// Important: This test is inherently race-prone, if it is proven to be
/// flaky, it should run in a singled threaded environment/removed entirely.
func testProcess() throws {
let key = EnvironmentKey(UUID().uuidString)
let value = "TestValue"
var environment = Environment.current
XCTAssertNil(environment[key])
try Environment.set(key: key, value: value)
environment = Environment.current // reload
XCTAssertEqual(environment[key], value)
try Environment.set(key: key, value: nil)
XCTAssertEqual(environment[key], value) // this is a copy!
environment = Environment.current // reload
XCTAssertNil(environment[key])
}
func test_cachable() {
let term = EnvironmentKey("TERM")
var environment = Environment()
environment[.path] = "/usr/bin"
environment[term] = "xterm-256color"
let cachableEnvironment = environment.cachable
XCTAssertNotNil(cachableEnvironment[.path])
XCTAssertNil(cachableEnvironment[term])
}
func test_collection() {
let environment: Environment = ["TestKey": "TestValue"]
XCTAssertEqual(environment.count, 1)
XCTAssertEqual(environment.first?.key, EnvironmentKey("TestKey"))
XCTAssertEqual(environment.first?.value, "TestValue")
}
func test_description() {
var environment = Environment()
environment[EnvironmentKey("TestKey")] = "TestValue"
XCTAssertEqual(environment.description, #"["TestKey=TestValue"]"#)
}
func test_encodable() throws {
var environment = Environment()
environment["TestKey"] = "TestValue"
let data = try JSONEncoder().encode(environment)
let jsonString = String(data: data, encoding: .utf8)
XCTAssertEqual(jsonString, #"{"TestKey":"TestValue"}"#)
}
func test_equatable() {
let environment0: Environment = ["TestKey": "TestValue"]
let environment1: Environment = ["TestKey": "TestValue"]
XCTAssertEqual(environment0, environment1)
#if os(Windows)
// Test case insensitivity on windows
let environment2: Environment = ["testKey": "TestValue"]
XCTAssertEqual(environment0, environment2)
#endif
}
func test_expressibleByDictionaryLiteral() {
let environment: Environment = ["TestKey": "TestValue"]
XCTAssertEqual(environment["TestKey"], "TestValue")
}
func test_decodable() throws {
let jsonString = #"{"TestKey":"TestValue"}"#
let data = jsonString.data(using: .utf8)!
let environment = try JSONDecoder().decode(Environment.self, from: data)
XCTAssertEqual(environment[EnvironmentKey("TestKey")], "TestValue")
}
}
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