antitypical/Assertions

Name: Assertions

Owner: Antitypical

Description: Flexible XCTest assertions in Swift.

Created: 2015-02-14 21:12:26.0

Updated: 2017-11-06 17:15:05.0

Pushed: 2015-12-27 16:59:16.0

Homepage: null

Size: 57

Language: Swift

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README

Assertions

This is a Swift µframework providing simple, flexible assertions for XCTest in Swift.

Requires Swift 1.2 (Xcode 6.3)

Use

Assert that an optional array is equal to another array:

array: [Int]? = [1, 2, 3]
rt(maybeAnArray(), ==, [1, 2, 3])

If you tried to use XCTAssertEqual, you?d have to unwrap the optional first:

ssertEqual(array, [1, 2, 3])
> error: value of optional type '[Int]?' not unwrapped; did you mean to use '!' or '?'?

This works great with optionals of other types, too:

string: String? = "hello"
rt(string, ==, "hello")

Here, too, XCTAssertEqual would force you to unwrap the optional:

ssertEqual(string, "hello")
> error: cannot find an overload for 'XCTAssertEqual' that accepts an argument list of type '(String?, String)'

You can also pass in methods:

set: Set<Int>? = Set([1, 2, 3])
rt(set, Set.contains, 3)

And you can use the predicate form for any other test you might want to write:

string: String? = ""
rt(string, { $0.isEmpty })

These last two are approximately equivalent to using Swift?s optional chaining, but you might find them handy.

Integration

1. Add this repo as a submodule in e.g. External/Assertions:

   git submodule add https://github.com/robrix/Assertions.git External/Assertions
   

2. Drag Assertions.xcodeproj into your .xcworkspace/.xcodeproj.

3. Add Assertions.framework to your test target?s Link Binary With Libraries build phase.