How to use appendedBeNilHint method of NMBExpectationMessage class

Best Nimble code snippet using NMBExpectationMessage.appendedBeNilHint

ExpectationMessage.swift

Source:ExpectationMessage.swift Github

copy

Full Screen

...53            return .details(expectation.appended(message: message), msg)54        }55    }56    /// Appends a message hinting to use beNil() for when the actual value given was nil.57    public func appendedBeNilHint() -> ExpectationMessage {58        return appended(message: " (use beNil() to match nils)")59    }60    /// Appends a detailed (aka - multiline) message after the primary expectation message61    /// Detailed messages will be placed after .appended(message:) calls.62    public func appended(details: String) -> ExpectationMessage {63        return .details(self, details)64    }65    internal func visitLeafs(_ f: (ExpectationMessage) -> ExpectationMessage) -> ExpectationMessage {66        switch self {67        case .fail, .expectedTo, .expectedActualValueTo, .expectedCustomValueTo:68            return f(self)69        case let .prepends(msg, expectation):70            return .prepends(msg, expectation.visitLeafs(f))71        case let .appends(expectation, msg):72            return .appends(expectation.visitLeafs(f), msg)73        case let .details(expectation, msg):74            return .details(expectation.visitLeafs(f), msg)75        }76    }77    /// Replaces a primary expectation with one returned by f. Preserves all composite expectations78    /// that were built upon it (aka - all appended(message:) and appended(details:).79    public func replacedExpectation(_ f: @escaping (ExpectationMessage) -> ExpectationMessage) -> ExpectationMessage {80        func walk(_ msg: ExpectationMessage) -> ExpectationMessage {81            switch msg {82            case .fail, .expectedTo, .expectedActualValueTo, .expectedCustomValueTo:83                return f(msg)84            default:85                return msg86            }87        }88        return visitLeafs(walk)89    }90    /// Wraps a primary expectation with text before and after it.91    /// Alias to prepended(message: before).appended(message: after)92    public func wrappedExpectation(before: String, after: String) -> ExpectationMessage {93        return prepended(expectation: before).appended(message: after)94    }95    /// Prepends a message by modifying the primary expectation96    public func prepended(expectation message: String) -> ExpectationMessage {97        func walk(_ msg: ExpectationMessage) -> ExpectationMessage {98            switch msg {99            case let .expectedTo(msg):100                return .expectedTo(message + msg)101            case let .expectedActualValueTo(msg):102                return .expectedActualValueTo(message + msg)103            case let .expectedCustomValueTo(msg, actual):104                return .expectedCustomValueTo(message + msg, actual)105            default:106                return msg.visitLeafs(walk)107            }108        }109        return visitLeafs(walk)110    }111    // TODO: test & verify correct behavior112    internal func prepended(message: String) -> ExpectationMessage {113        return .prepends(message, self)114    }115    /// Converts the tree of ExpectationMessages into a final built string.116    public func toString(actual: String, expected: String = "expected", to: String = "to") -> String {117        switch self {118        case let .fail(msg):119            return msg120        case let .expectedTo(msg):121            return "\(expected) \(to) \(msg)"122        case let .expectedActualValueTo(msg):123            return "\(expected) \(to) \(msg), got \(actual)"124        case let .expectedCustomValueTo(msg, actual):125            return "\(expected) \(to) \(msg), got \(actual)"126        case let .prepends(msg, expectation):127            return "\(msg)\(expectation.toString(actual: actual, expected: expected, to: to))"128        case let .appends(expectation, msg):129            return "\(expectation.toString(actual: actual, expected: expected, to: to))\(msg)"130        case let .details(expectation, msg):131            return "\(expectation.toString(actual: actual, expected: expected, to: to))\n\n\(msg)"132        }133    }134    // Backwards compatibility: converts ExpectationMessage tree to FailureMessage135    internal func update(failureMessage: FailureMessage) {136        switch self {137        case let .fail(msg):138            failureMessage.stringValue = msg139        case let .expectedTo(msg):140            failureMessage.actualValue = nil141            failureMessage.postfixMessage = msg142        case let .expectedActualValueTo(msg):143            failureMessage.postfixMessage = msg144        case let .expectedCustomValueTo(msg, actual):145            failureMessage.postfixMessage = msg146            failureMessage.actualValue = actual147        case let .prepends(msg, expectation):148            expectation.update(failureMessage: failureMessage)149            if let desc = failureMessage.userDescription {150                failureMessage.userDescription = "\(msg)\(desc)"151            } else {152                failureMessage.userDescription = msg153            }154        case let .appends(expectation, msg):155            expectation.update(failureMessage: failureMessage)156            failureMessage.appendMessage(msg)157        case let .details(expectation, msg):158            expectation.update(failureMessage: failureMessage)159            failureMessage.appendDetails(msg)160        }161    }162}163extension FailureMessage {164    internal func toExpectationMessage() -> ExpectationMessage {165        let defaultMsg = FailureMessage()166        if expected != defaultMsg.expected || _stringValueOverride != nil {167            return .fail(stringValue)168        }169        var msg: ExpectationMessage = .fail(userDescription ?? "")170        if actualValue != "" && actualValue != nil {171            msg = .expectedCustomValueTo(postfixMessage, actualValue ?? "")172        } else if postfixMessage != defaultMsg.postfixMessage {173            if actualValue == nil {174                msg = .expectedTo(postfixMessage)175            } else {176                msg = .expectedActualValueTo(postfixMessage)177            }178        }179        if postfixActual != defaultMsg.postfixActual {180            msg = .appends(msg, postfixActual)181        }182        if let m = extendedMessage {183            msg = .details(msg, m)184        }185        return msg186    }187}188#if _runtime(_ObjC)189public class NMBExpectationMessage: NSObject {190    private let msg: ExpectationMessage191    internal init(swift msg: ExpectationMessage) {192        self.msg = msg193    }194    public init(expectedTo message: String) {195        self.msg = .expectedTo(message)196    }197    public init(expectedActualValueTo message: String) {198        self.msg = .expectedActualValueTo(message)199    }200    public init(expectedActualValueTo message: String, customActualValue actual: String) {201        self.msg = .expectedCustomValueTo(message, actual)202    }203    public init(fail message: String) {204        self.msg = .fail(message)205    }206    public init(prepend message: String, child: NMBExpectationMessage) {207        self.msg = .prepends(message, child.msg)208    }209    public init(appendedMessage message: String, child: NMBExpectationMessage) {210        self.msg = .appends(child.msg, message)211    }212    public init(prependedMessage message: String, child: NMBExpectationMessage) {213        self.msg = .prepends(message, child.msg)214    }215    public init(details message: String, child: NMBExpectationMessage) {216        self.msg = .details(child.msg, message)217    }218    public func appendedBeNilHint() -> NMBExpectationMessage {219        return NMBExpectationMessage(swift: msg.appendedBeNilHint())220    }221    public func toSwift() -> ExpectationMessage { return self.msg }222}223extension ExpectationMessage {224    func toObjectiveC() -> NMBExpectationMessage {225        return NMBExpectationMessage(swift: self)226    }227}228#endif...

Full Screen

Full Screen

appendedBeNilHint

Using AI Code Generation

copy

Full Screen

1let message = NMBExpectationMessage()2let _ = message.appendedBeNilHint()3let message = NMBExpectationMessage()4let _ = message.appendedBeNilHint()5let message = NMBExpectationMessage()6let _ = message.appendedBeNilHint()7let message = NMBExpectationMessage()8let _ = message.appendedBeNilHint()9let message = NMBExpectationMessage()10let _ = message.appendedBeNilHint()11let message = NMBExpectationMessage()12let _ = message.appendedBeNilHint()13let message = NMBExpectationMessage()14let _ = message.appendedBeNilHint()15let message = NMBExpectationMessage()16let _ = message.appendedBeNilHint()17let message = NMBExpectationMessage()18let _ = message.appendedBeNilHint()19let message = NMBExpectationMessage()20let _ = message.appendedBeNilHint()21let message = NMBExpectationMessage()22let _ = message.appendedBeNilHint()23let message = NMBExpectationMessage()24let _ = message.appendedBeNilHint()

Full Screen

Full Screen

appendedBeNilHint

Using AI Code Generation

copy

Full Screen

1func testAppendedBeNilHint() {2    let message = NMBExpectationMessage()3    message.appendedBeNilHint()4    expect(message.stringValue()).to(equal("be nil"))5}6func testAppendedBeNilHint() {7    let message = NMBFailureMessage()8    message.appendedBeNilHint()9    expect(message.stringValue()).to(equal("be nil"))10}11func testAppendedBeNilHint() {12    let message = NMBObjCMatcher()13    message.appendedBeNilHint()14    expect(message.stringValue()).to(equal("be nil"))15}16func testAppendedBeNilHint() {17    let message = NMBObjCBeNil()18    message.appendedBeNilHint()19    expect(message.stringValue()).to(equal("be nil"))20}21func testAppendedBeNilHint() {22    let message = NMBObjCBeEmpty()23    message.appendedBeNilHint()24    expect(message.stringValue()).to(equal("be nil"))25}26func testAppendedBeNilHint() {27    let message = NMBObjCBeGreaterThan()28    message.appendedBeNilHint()29    expect(message.stringValue()).to(equal("be nil"))30}31func testAppendedBeNilHint() {32    let message = NMBObjCBeGreaterThanOrEqualTo()33    message.appendedBeNilHint()34    expect(message.stringValue()).to(equal("be nil"))35}36func testAppendedBeNilHint() {37    let message = NMBObjCBeLessThan()38    message.appendedBeNilHint()39    expect(message.stringValue()).to(equal("be nil"))40}

Full Screen

Full Screen

appendedBeNilHint

Using AI Code Generation

copy

Full Screen

1func testAppendedBeNilHint() {2    let message = NMBExpectationMessage()3    message.appendedBeNilHint()4    XCTAssertEqual(message.stringValue, "be nil")5}6func testAppendedBeNilHint() {7    let message = NMBFailureMessage()8    message.appendedBeNilHint()9    XCTAssertEqual(message.stringValue, "be nil")10}11func testAppendedBeNilHint() {12    let message = NMBPredicateFailureMessage()13    message.appendedBeNilHint()14    XCTAssertEqual(message.stringValue, "be nil")15}16func testAppendedBeNilHint() {17    let message = NMBTestFailure()18    message.appendedBeNilHint()19    XCTAssertEqual(message.stringValue, "be nil")20}21func testAppendedBeNilHint() {22    let message = NMBTestFailure()23    message.appendedBeNilHint()24    XCTAssertEqual(message.stringValue, "be nil")25}26func testAppendedBeNilHint() {27    let message = NMBTestFailure()28    message.appendedBeNilHint()29    XCTAssertEqual(message.stringValue, "be nil")30}31func testAppendedBeNilHint() {32    let message = NMBTestFailure()33    message.appendedBeNilHint()34    XCTAssertEqual(message.stringValue, "be nil")35}36func testAppendedBeNilHint() {37    let message = NMBTestFailure()38    message.appendedBeNilHint()39    XCTAssertEqual(message.stringValue, "be nil")40}41func testAppendedBeNilHint() {42    let message = NMBTestFailure()

Full Screen

Full Screen

appendedBeNilHint

Using AI Code Generation

copy

Full Screen

1expect(1).to(beNil(), description: "1 should be nil")2expect(1).to(beNil(), description: "1 should be nil", file: "1.swift", line: 1)3expect(1).to(beNil(), description: "1 should be nil", file: "1.swift", line: 1, functionName: "test")4expect(1).to(beNil(), description: "1 should be nil")5expect(1).to(beNil(), description: "1 should be nil", file: "2.swift", line: 2)6expect(1).to(beNil(), description: "1 should be nil", file: "2.swift", line: 2, functionName: "test")7expect(1).to(beNil(), description: "1 should be nil")8expect(1).to(beNil(), description: "1 should be nil", file: "3.swift", line: 3)9expect(1).to(beNil(), description: "1 should be nil", file: "3.swift", line: 3, functionName: "test")10expect(1).to(beNil(), description: "1 should be nil")11expect(1).to(beNil(), description: "1 should be nil", file: "4.swift", line: 4)12expect(1).to(beNil(), description: "1 should be nil", file: "4.swift",

Full Screen

Full Screen

appendedBeNilHint

Using AI Code Generation

copy

Full Screen

1import Nimble2import Quick3class TestClass: QuickSpec {4    override func spec() {5        describe("test") {6            it("test") {7                expect(nil).to(beNil())8            }9        }10    }11}12![Test Results](

Full Screen

Full Screen

appendedBeNilHint

Using AI Code Generation

copy

Full Screen

1import Nimble2import Quick3import Foundation4class NMBExpectationMessage_1 : QuickSpec {5    override func spec() {6        describe("NMBExpectationMessage") {7            it("appendedBeNilHint method") {8                let message = NMBExpectationMessage.to("be nil")9                let result = message.appendedBeNilHint()10                expect(result.description) == "to be nil or be an instance of NSNull"11            }12        }13    }14}15import Nimble16import Quick17import Foundation18class NMBExpectationMessage_2 : QuickSpec {19    override func spec() {20        describe("NMBExpectationMessage") {21            it("appendedBeNilHint method") {22                let message = NMBExpectationMessage.to("be nil")23                let result = message.appendedBeNilHint()24                expect(result.description) == "to be nil or be an instance of NSNull"25            }26        }27    }28}

Full Screen

Full Screen

appendedBeNilHint

Using AI Code Generation

copy

Full Screen

1var message = NMBExpectationMessage()2message.appendedBeNilHint(actual)3expect(message.stringValue).to(equal("to be nil, got <Actual>"))4func appendedBeNilHint(actual: String) {5    if let actual = actual {6        self.appendedMessage("got <\(actual)>")7    }8}9describe("appendedBeNilHint") {10    it("appends the hint for beNil") {11        let message = NMBExpectationMessage()12        message.appendedBeNilHint(actual)13        expect(message.stringValue).to(equal("to be nil, got <Actual>"))14    }15}

Full Screen

Full Screen

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.

LambdaTest Learning Hubs:

YouTube

You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.

Run Nimble automation tests on LambdaTest cloud grid

Perform automation testing on 3000+ real desktop and mobile devices online.

Most used method in NMBExpectationMessage

Try LambdaTest Now !!

Get 100 minutes of automation test minutes FREE!!

Next-Gen App & Browser Testing Cloud

Was this article helpful?

Helpful

NotHelpful