johnandersen777.bsky.social/knotless

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import XCTest

/// Taps through the app against live knotless.dev, as the account the run
/// names. Needs the network, so it is run by hand: see ios/README.md.
final class FlowTests: XCTestCase {
    private var app: XCUIApplication!
    private let shots = ProcessInfo.processInfo.environment["KNOTLESS_SHOTS"]

    override func setUp() {
        continueAfterFailure = false
        app = XCUIApplication()
        for key in ["KNOTLESS_TOKENS"] {
            app.launchEnvironment[key] = ProcessInfo.processInfo.environment[key]
        }
        app.launch()
    }

    private func shot(_ name: String) {
        guard let shots else { return }
        try? XCUIScreen.main.screenshot().pngRepresentation.write(to: URL(fileURLWithPath: "\(shots)/\(name).png"))
    }

    private func tab(_ name: String) { app.tabBars.buttons[name].tap() }

    private func see(_ text: String, timeout: TimeInterval = 30) {
        let found = app.staticTexts.containing(NSPredicate(format: "label CONTAINS[c] %@", text)).firstMatch
        XCTAssertTrue(found.waitForExistence(timeout: timeout), "\(text) never showed")
    }

    private func notFailed() {
        XCTAssertFalse(app.staticTexts["This didn't load"].waitForExistence(timeout: 2), "A screen failed to load")
    }

    func testAThreadsHeaderOpensOnlyFromItsLinks() {
        app.terminate()
        let did = "did:plc:bcgltzqazw5tb6k2g3ttenbj"
        app.launchEnvironment["KNOTLESS_ROUTE"] = "thread|\(did)|chadtmiller.com|stack-test|at://\(did)/dev.knotless.pull/3mzkcgac7w4is"
        app.launch()
        let title = app.staticTexts["Pull c1"].firstMatch
        XCTAssertTrue(title.waitForExistence(timeout: 30))
        app.staticTexts["Fails"].tap()
        sleep(2)
        XCTAssertTrue(title.isHittable, "Touching the description left the pull")
        app.buttons["thread-author"].tap()
        see("followers")
    }

    func testInboxOpensAPullAndItsFiles() {
        tab("Inbox")
        let row = app.cells.firstMatch
        XCTAssertTrue(row.waitForExistence(timeout: 30))
        shot("flow-inbox")
        row.tap()
        let changes = app.staticTexts.containing(NSPredicate(format: "label CONTAINS[c] %@", "changed")).firstMatch
        for _ in 0..<6 where !changes.waitForExistence(timeout: 8) { app.swipeUp() }
        XCTAssertTrue(changes.exists, "No changes row on the pull")
        notFailed()
        shot("flow-private-pull")
        changes.tap()
        see("Files changed")
        notFailed()
        sleep(4)
        shot("flow-files")
        app.swipeUp()
        sleep(2)
        shot("flow-files-scrolled")
        notFailed()
    }

    /// A row scrolled past before its diff comes has its read cancelled, which
    /// isn't a read that failed: coming back to it reads it again.
    func testFlickingPastAPullsFilesLeavesThemToLoad() {
        app.terminate()
        let did = "did:plc:bcgltzqazw5tb6k2g3ttenbj"
        app.launchEnvironment["KNOTLESS_ROUTE"] = "files|\(did)|chadtmiller.com|knotless|at://\(did)/dev.knotless.pull/3myzh6t32uark"
        app.launch()
        see("Files changed")
        let failed = app.staticTexts.containing(NSPredicate(format: "label CONTAINS %@", "diff didn't load")).firstMatch
        for _ in 0..<8 { app.swipeUp(velocity: .fast) }
        for _ in 0..<8 { app.swipeDown(velocity: .fast) }
        sleep(4)
        shot("flow-files-flicked")
        XCTAssertFalse(failed.exists, "A file scrolled past stayed unread")
        for _ in 0..<6 {
            app.swipeUp()
            XCTAssertTrue(app.activityIndicators.firstMatch.waitForNonExistence(timeout: 20), "A file scrolled past never loaded")
            XCTAssertFalse(failed.exists, "A file scrolled past stayed unread")
        }
    }

    func testRepoToCodeAndAFile() {
        tab("Explore")
        let row = app.cells.firstMatch
        XCTAssertTrue(row.waitForExistence(timeout: 30))
        tab("Home")
        see("Your repositories")
        app.swipeUp()
        app.cells.element(boundBy: 6).tap()
        see("star")
        notFailed()
        app.staticTexts["Code"].tap()
        XCTAssertTrue(app.cells.firstMatch.waitForExistence(timeout: 30))
        notFailed()
        shot("flow-tree")
    }

    func testKnotlessPullsOpenClosedAndDiffScrolls() {
        tab("Profile")
        see("followers")
        app.swipeUp()
        tab("Explore")
        let merged = app.cells.containing(NSPredicate(format: "label CONTAINS[c] %@", "chadtmiller.com/knotless")).firstMatch
        XCTAssertTrue(merged.waitForExistence(timeout: 30))
        merged.tap()
        notFailed()
        shot("flow-explore-target")
    }
}