Generalised Steps and Assertions

[q231950]

These breaking changes allow for a more flexible use by having general Steps and Assertions. Subclassing of Steps and Assertions is no longer necessary and the obligatory Context has been removed.

Example with multiple defined Steps

func test_uiTest_example() {

        struct Universe {
            var numberOfStars = 0
        }

        struct Context {
            var count = 0
        }

        var universeA = Universe()
        var universeB = Universe()
        var context = Context()

        expect {
            Given {
                Step("I have universe A with 4 stars") {
                    universeA.numberOfStars = 4
                }
                Step("I have another universe B with 6 stars") {
                    universeB.numberOfStars = 6
                }
            }
            When {
                Step("I sum up the stars") {
                    context.count = universeA.numberOfStars + universeB.numberOfStars
                }
                Step("I bring them into a second dimension") {
                    context.count *= context.count
                }
            }
            Then("I can see 100 stars ✨") {
                XCTAssertEqual(context.count, 100)
            }
        }
    }

Example with general Steps and a general Assertion

func test_unitTest_example() {

        let context = UniverseContext()

        expect {
            Given("I have a universe without any stars") {
                context.numberOfStars = 5
            }
            When("I add a couple of stars") {
                context.numberOfStars = 1_000_000_000_023
            }
            Then("I can see the stars I have added ✨") {
                XCTAssertEqual(context.numberOfStars, 1_000_000_000_023)
            }
        }
    }