This macro eliminates boilerplate needed to set initial values of Dependency Injected instances' methods in unit tests.
By simply annotating a struct or class with @FatalTestValue, it auto-generates an initializer invoking fatalError() for the closure.
To get started, import FatalTestValue: import FatalTestValue, annotate your struct or class with @FatalTestValue:
import FatalTestValue
@FatalTestValue
struct Example {
var create: @Sendable (Int) async throws -> Void
var read: @Sendable (Int) async throws -> String
var update: @Sendable (Int, String) async throws -> Void
var delete: (Int) -> Void
}This will automatically generate an extension with a testValue property.
extension Example {
public static let testValue = Example(
create: { _ in
fatalError()
},
read: { _ in
fatalError()
},
update: { _, _ in
fatalError()
},
delete: { _ in
fatalError()
}
)
}If you are using GUI to set up Package Dependencies in Xcode, add the URL in Pacakge Dependencies.
https://github.com/CuriositySoftware/swift-fatal-test-value
If you are using Package.swift add:
.package(
url: "https://github.com/CuriositySoftware/swift-fatal-test-value/",
.upToNextMajor(from: "1.0.0")
)and then add the product to any target that needs access to the macro:
.product(
name: "FatalTestValue",
package: "swift-fatal-test-value"
)