Fivel

⚠️ Breaking Changes Ahead ⚠️

• Update to Swift 5, 5-style package format, and upgrade the Xcode project to compile in Swift 5 mode
• Fix a bug where covered properties yielded a false positive if the condition was never true

In the coming release, we will be reworking the coverage system to better match QuickCheck's current functionality.

Four Two The Floor

⚠️ Breaking Changes Ahead ⚠️

• Update to the Swift 4.2 tooling, 4.2-style package format, and upgrade the Xcode project to compile in the 4.2 mode of the Swift compiler.
• Removed the previously-deprecated Gen.map forms. Please use the corresponding Gen.zip function call itself
• Removed quickCheck(_ :name:). Use one of quickCheck(asserting:) or quickCheck(reporting:) instead.

Impredicativity

• Remove self-referential Arbitrary instances for lazy collections
• Updates to documentation

⚠️ Breaking Changes Ahead ⚠️

This is the last release of SwiftCheck that supports Xcode 9 and its tooling.

Higher-Order Checkanery

Swift turns 4.1, and so SwiftCheck marches onward. This release brought with it a raft of improvements:

• Non-operator spellings of the standard property() <- test pattern is provided in the form of the new quickCheck functions.
• Conditional conformances for a raft of Standard Library types obviate most modifier types. As such, ArrayOf<T>, SetOf<T>, DictionaryOf<K, V>, and OptionalOf<T> have been removed. You can now directly use the natural types [T], Set<T>, [K: V], and T? respectively.
• Documentation improvements and simplifications

Uppercut

• Silence warnings introduced by Xcode 9.1.

Chubby Checker

SwiftCheck has internally upgraded to Swift 4.x.

⚠️ Breaking Changes Ahead ⚠️

• Generation of floating point values specified an incorrect mask which could lead to decreased diversity of test values. Calculation of the mask has been corrected (h/t @sebastiangrail). Seeds replaying tests involving floating point numbers may need to be recalculated.

• Gen.fromElements(in:), Gen.fromElements(of:), Gen.choose(_:) and Gen.chooseAny() have been updated to take fuller advantage of type inference and may no longer require explicit specialization. In addition, incorrect specializations may now be diagnosed as errors.

• Gen.map(...) overloads have been deprecated and renamed Gen.zipWith. These have been given a similar overhaul to the above.

Pointless Pointilism

⚠️ Breaking Changes Ahead ⚠️

SwiftCheck now targets Xcode 9 and Swift 3.2. This is the last version of SwiftCheck that will support Swift 3.

Swift Three, We Hardly Knew Ye

SwiftCheck now builds with Swift 3.1

I-Triple-E-To-The-One-To-The-Three

Fixes an issue where generating with the range (Int.max - 512, Int.max) could cause Builtin integer conversions to fail in the middle of random number generation.

Arrowized Materialism

Fixes an issue where extending the lifetime of ArrowOf<T, U> or IsoOf<T, U> could cause the underlying data table to be prematurely deallocated. (h/t @broomburgo)