![]() ![]() Over the years, the system was developed to create common standards for financial transactions that can be implemented all over the world, fueled by a processing system and communications network that allowed for sharing data between institutions. SWIFT stands for Society for Worldwide Interbank Financial Telecommunication and was inaugurated in 1973 in Brussels, with the support of 239 banks from 15 countries. ![]() (see ) let exception = NSException ( name : NSInternalInconsistencyException, reason : "Not enough fish in the sea.", userInfo : ) expect. Only Objective-C code can raise exceptions // that Nimble will catch. So Nimble can test whether an expression raises anĮxception once evaluated: // Swift // Note: Swift currently doesn't have exceptions. The expect function doesn’t evaluate the value it’s given until it’s Operator overloads are only available in Swift, so you won’t be able squawk ) != "Hi!" // Passes if 10 is greater than 2: expect ( 10 ) > 2 Like = for equivalence, or > for comparisons: // Swift // Passes if squawk does not equal "Hi!": expect ( seagull. Tired of so much typing? With Nimble, you can use overloaded operators Not available when using Nimble in Objective-C. Nimble uses generics–only available in Swift–to ensure Nimble makes sure you don’t compare two types that don’t match: // Swift // Does not compile: expect ( 1 + 1 ). toWithDescription ( equal ( ), sure libKindergartenMath is loaded" ) // failed - Make sure libKindergartenMath is loaded to ( equal ( )) // failed - expected to equal, got Įxpect ( ( 1 + 1 )). Or the *WithDescription version in Objective-C: // Nimble expect ( ( 1 + 1 )). to ( equal ( 3 ), description : "Make sure libKindergartenMath is loaded" ) // failed - Make sure libKindergartenMath is loaded // expected to equal, got to ( equal ( 3 )) // failed - expected to equal, got expect ( 1 + 1 ). Would you like to add more information to the test’s failure messages? Use the description optional argument to add your own text: // Swift expect ( 1 + 1 ). notTo ( equal ( hello there!" )) Custom Failure Messages toNot ( equal ( hello there!" )) expect ( seagull. notTo ( equal ( "Oh, hello there!" )) // Nimble expect ( seagull. toNot ( equal ( "Oh, hello there!" )) expect ( seagull. To perform the opposite expectation–to assert something is notĮqual–use toNot or notTo: // Swift import Nimble expect ( seagull. Xcode highlight the correct line when an expectation is not met. The expect function autocompletes to include file: and line:,īut these parameters are optional. to ( equal ( "Squee!" )) // Nimble expect ( seagull. Nimble allows you to express expectations using a natural,Įasily understood language: // Swift import Nimble expect ( seagull. It’s hard to write asynchronous tests.There’s no easy way to assert that a stringĬontains a particular substring, or that a number is less than or XCTest assertions have a couple of drawbacks: XCTAssertEqual ( 1 + 1, 2, one plus one to equal two" ) Some Background: Expressing Outcomes Using Assertions in XCTestĪpple’s Xcode includes the XCTest framework, which providesĪssertion macros to test whether code behaves properly.įor example, to assert that 1 + 1 = 2, XCTest has you write: // Swift XCTAssertEqual ( 1 + 1, 2, "expected one plus one to equal two" ) Properly Handling nil in Objective-C Matchers.Matching a value to any of a group of matchers.Nimble: Expectations Using expect(.).to.Some Background: Expressing Outcomes Using Assertions in XCTest. ![]() toEventually ( beTruthy ()) How to Use Nimble toNot ( contain ( "Mississippi" )) expect ( ocean. to ( beCloseTo ( 1.1, within : 0.1 )) expect ( 3 ) > 2 expect ( "seahorse" ). Use Nimble to express the expected outcomes of SwiftĬedar. withAssertionHandler(_:file:line:closure:).raiseException(named:reason:userInfo:closure:).postDistributedNotifications(_:from:names:).gatherFailingExpectations(silently:closure:). ![]()
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