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Merge pull request #557 from LucianoPAlmeida/master
Sequence elementsEqual matcher
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| /// A Nimble matcher that succeeds when the actual sequence contain the same elements in the same order to the exepected sequence. | ||
| public func elementsEqual<S: Sequence>(_ expectedValue: S?) -> Predicate<S> where S.Element: Equatable { | ||
| // A matcher abstraction for https://developer.apple.com/documentation/swift/sequence/2949668-elementsequal | ||
| return Predicate.define("elementsEqual <\(stringify(expectedValue))>") { (actualExpression, msg) in | ||
| let actualValue = try actualExpression.evaluate() | ||
| switch (expectedValue, actualValue) { | ||
| case (nil, _?): | ||
| return PredicateResult(status: .fail, message: msg.appendedBeNilHint()) | ||
| case (nil, nil), (_, nil): | ||
| return PredicateResult(status: .fail, message: msg) | ||
| case (let expected?, let actual?): | ||
| let matches = expected.elementsEqual(actual) | ||
| return PredicateResult(bool: matches, message: msg) | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| import Foundation | ||
| import XCTest | ||
| import Nimble | ||
|
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| final class ElementsEqualTest: XCTestCase, XCTestCaseProvider { | ||
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| func testSequenceElementsEquality() { | ||
| failsWithErrorMessageForNil("expected to elementsEqual <nil>, got <nil>") { | ||
| expect(nil as [Int]?).to(elementsEqual(nil as [Int]?)) | ||
| } | ||
| let sequence = [1, 2] | ||
| failsWithErrorMessageForNil("expected to elementsEqual <[1, 2]>, got <nil>") { | ||
| expect(nil as [Int]?).to(elementsEqual(sequence)) | ||
| } | ||
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| failsWithErrorMessageForNil("expected to elementsEqual <nil>, got <[1, 2]>") { | ||
| expect(sequence).to(elementsEqual(nil as [Int]?)) | ||
| } | ||
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| let sequence1 = [1, 2, 3] | ||
| let sequence2 = [1, 2, 3, 4, 5] | ||
| expect(sequence1).toNot(elementsEqual(sequence2)) | ||
| expect(sequence1).toNot(elementsEqual([3, 2, 1])) | ||
| expect(sequence1).to(elementsEqual([1, 2, 3])) | ||
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|
||
| } | ||
| } |
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