Async view inspection in combination with evironment

[adusak]

Hello! I am trying to use the library in combination with Swift Testing and async functions. It works great for simple views, but I am having trouble using views that rely on the @Environment. I was trying to find a way, but I have had no luck so far.

struct MyView: View, in {
    @Environment(\.test) var test: Test
    let inspection = Inspection<Self>()
    var body: some View {
         Text("stuff")
    }

let sut = MyView()
try await ViewHosting.host(sut.environment(\.test, Test()) { hostedView in
    try await hostedView.inspection.inspect { view in
        #expect(throws: Never.self) {
            _ = try view.find(viewWithAccessibilityIdentifier: a11yIdEmptyJobListText)
            _ = try view.find(text: "empty text")
        }
    }
}

But then the problem is that the environment view modifier erases the type of MyView, and I get an error that hostedView does not have a member inspection.

Did anybody manage to work around this problem?

[nalexn]

Hey, yeah, I found this isn't properly documented, so you can do

let sut = MyView()
try await ViewHosting.host(sut.environment(\.test, Test()) { _ in
    try await sut.inspection.inspect { view in
        #expect(throws: Never.self) {
            _ = try view.find(viewWithAccessibilityIdentifier: a11yIdEmptyJobListText)
            _ = try view.find(text: "empty text")
        }
    }
}

[adusak]

Works perfectly! Thank you for the response!

[nalexn]

It appears that there is really no point in supplying the view in the closure of ViewHosting.host, you can always refer to the outbound sut struct for inspection. I'm going to deprecate the existing host function and replace its' whileHosted closure with () -> Void