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|
import SwiftFormat
final class ExtensionDeclTests: PrettyPrintTestCase {
func testBasicExtensionDeclarations() {
let input =
"""
extension MyExtension {
let A: Int
let B: Bool
}
public extension MyExtension {
let A: Int
let B: Bool
}
public extension MyLongerExtension {
let A: Int
let B: Bool
}
"""
let expected =
"""
extension MyExtension {
let A: Int
let B: Bool
}
public extension MyExtension {
let A: Int
let B: Bool
}
public extension
MyLongerExtension
{
let A: Int
let B: Bool
}
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 33)
}
func testExtensionInheritance() {
let input =
"""
extension MyExtension: ProtoOne {
let A: Int
let B: Bool
}
extension MyExtension: ProtoOne, ProtoTwo {
let A: Int
let B: Bool
}
extension MyExtension: ProtoOne, ProtoTwo, ProtoThree {
let A: Int
let B: Bool
}
"""
let expected =
"""
extension MyExtension: ProtoOne {
let A: Int
let B: Bool
}
extension MyExtension: ProtoOne, ProtoTwo {
let A: Int
let B: Bool
}
extension MyExtension: ProtoOne, ProtoTwo,
ProtoThree
{
let A: Int
let B: Bool
}
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 50)
}
func testExtensionWhereClause() {
let input =
"""
extension MyExtension where S: Collection {
let A: Int
let B: Double
}
extension MyExtension where S: Collection, T: ReallyLongExtensionName {
let A: Int
let B: Double
}
extension MyExtension where S: Collection, T: ReallyLongExtensionName, U: AnotherLongExtension {
let A: Int
let B: Double
}
"""
let expected =
"""
extension MyExtension where S: Collection {
let A: Int
let B: Double
}
extension MyExtension
where S: Collection, T: ReallyLongExtensionName {
let A: Int
let B: Double
}
extension MyExtension
where
S: Collection, T: ReallyLongExtensionName, U: AnotherLongExtension
{
let A: Int
let B: Double
}
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 70)
}
func testExtensionWhereClause_lineBreakBeforeEachGenericRequirement() {
let input =
"""
extension MyExtension where S: Collection {
let A: Int
let B: Double
}
extension MyExtension where S: Collection, T: ReallyLongExtensionName {
let A: Int
let B: Double
}
extension MyExtension where S: Collection, T: ReallyLongExtensionName, U: AnotherLongExtension, W: AnotherReallyLongExtensionName {
let A: Int
let B: Double
}
"""
let expected =
"""
extension MyExtension where S: Collection {
let A: Int
let B: Double
}
extension MyExtension
where S: Collection, T: ReallyLongExtensionName {
let A: Int
let B: Double
}
extension MyExtension
where
S: Collection,
T: ReallyLongExtensionName,
U: AnotherLongExtension,
W: AnotherReallyLongExtensionName
{
let A: Int
let B: Double
}
"""
var config = Configuration.forTesting
config.lineBreakBeforeEachGenericRequirement = true
assertPrettyPrintEqual(input: input, expected: expected, linelength: 70, configuration: config)
}
func testExtensionWhereClauseWithInheritance() {
let input =
"""
extension MyExtension: ProtoOne where S: Collection {
let A: Int
let B: Double
}
extension MyExtension: ProtoOne, ProtoTwo where S: Collection, T: Protocol {
let A: Int
let B: Double
}
extension MyExtension: ProtoOne, ProtoTwo where S: Collection, T: Protocol, T: ReallyLongExtensionName, U: LongerExtensionName {
let A: Int
let B: Double
}
"""
let expected =
"""
extension MyExtension: ProtoOne where S: Collection {
let A: Int
let B: Double
}
extension MyExtension: ProtoOne, ProtoTwo
where S: Collection, T: Protocol {
let A: Int
let B: Double
}
extension MyExtension: ProtoOne, ProtoTwo
where
S: Collection, T: Protocol, T: ReallyLongExtensionName,
U: LongerExtensionName
{
let A: Int
let B: Double
}
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 70)
}
func testExtensionWhereClauseWithInheritance_lineBreakBeforeEachGenericRequirement() {
let input =
"""
extension MyExtension: ProtoOne where S: Collection {
let A: Int
let B: Double
}
extension MyExtension: ProtoOne, ProtoTwo where S: Collection, T: Protocol {
let A: Int
let B: Double
}
extension MyExtension: ProtoOne, ProtoTwo where S: Collection, T: Protocol, T: ReallyLongExtensionName, U: LongerExtensionName {
let A: Int
let B: Double
}
"""
let expected =
"""
extension MyExtension: ProtoOne where S: Collection {
let A: Int
let B: Double
}
extension MyExtension: ProtoOne, ProtoTwo
where S: Collection, T: Protocol {
let A: Int
let B: Double
}
extension MyExtension: ProtoOne, ProtoTwo
where
S: Collection,
T: Protocol,
T: ReallyLongExtensionName,
U: LongerExtensionName
{
let A: Int
let B: Double
}
"""
var config = Configuration.forTesting
config.lineBreakBeforeEachGenericRequirement = true
assertPrettyPrintEqual(input: input, expected: expected, linelength: 70, configuration: config)
}
func testExtensionAttributes() {
let input =
"""
@dynamicMemberLookup public extension MyExtension {
let A: Int
let B: Double
}
@dynamicMemberLookup @objc public extension MyExtension {
let A: Int
let B: Double
}
@dynamicMemberLookup @objc @objcMembers public extension MyExtension {
let A: Int
let B: Double
}
@dynamicMemberLookup
@available(swift 4.0)
public extension MyExtension {
let A: Int
let B: Double
}
"""
let expected =
"""
@dynamicMemberLookup public extension MyExtension {
let A: Int
let B: Double
}
@dynamicMemberLookup @objc public extension MyExtension {
let A: Int
let B: Double
}
@dynamicMemberLookup @objc @objcMembers
public extension MyExtension {
let A: Int
let B: Double
}
@dynamicMemberLookup
@available(swift 4.0)
public extension MyExtension {
let A: Int
let B: Double
}
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 60)
}
func testExtensionFullWrap() {
let input =
"""
public extension MyContainer: MyContainerProtocolOne, MyContainerProtocolTwo, SomeoneElsesContainerProtocol, SomeFrameworkContainerProtocol where BaseCollection: Collection, BaseCollection: P, BaseCollection.Element: Equatable, BaseCollection.Element: SomeOtherProtocol {
let A: Int
let B: Double
}
"""
let expected =
"""
public extension MyContainer:
MyContainerProtocolOne, MyContainerProtocolTwo,
SomeoneElsesContainerProtocol,
SomeFrameworkContainerProtocol
where
BaseCollection: Collection, BaseCollection: P,
BaseCollection.Element: Equatable,
BaseCollection.Element: SomeOtherProtocol
{
let A: Int
let B: Double
}
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 50)
}
func testExtensionFullWrap_lineBreakBeforeEachGenericRequirement() {
let input =
"""
public extension MyContainer: MyContainerProtocolOne, MyContainerProtocolTwo, SomeoneElsesContainerProtocol, SomeFrameworkContainerProtocol where BaseCollection: Collection, BaseCollection: P, BaseCollection.Element: Equatable, BaseCollection.Element: SomeOtherProtocol {
let A: Int
let B: Double
}
"""
let expected =
"""
public extension MyContainer:
MyContainerProtocolOne, MyContainerProtocolTwo,
SomeoneElsesContainerProtocol,
SomeFrameworkContainerProtocol
where
BaseCollection: Collection,
BaseCollection: P,
BaseCollection.Element: Equatable,
BaseCollection.Element: SomeOtherProtocol
{
let A: Int
let B: Double
}
"""
var config = Configuration.forTesting
config.lineBreakBeforeEachGenericRequirement = true
assertPrettyPrintEqual(input: input, expected: expected, linelength: 50, configuration: config)
}
func testEmptyExtension() {
let input = "extension Foo {}"
assertPrettyPrintEqual(input: input, expected: input + "\n", linelength: 50)
let wrapped = """
extension Foo {
}
"""
assertPrettyPrintEqual(input: input, expected: wrapped, linelength: 15)
}
func testEmptyExtensionWithComment() {
let input = """
extension Foo {
// foo
}
"""
assertPrettyPrintEqual(input: input, expected: input + "\n", linelength: 50)
}
func testOneMemberExtension() {
let input = "extension Foo { var bar: Int { return 0 } }"
assertPrettyPrintEqual(input: input, expected: input + "\n", linelength: 50)
}
}
|
