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41 lines
1.3 KiB
Swift
41 lines
1.3 KiB
Swift
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import XCTest
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extension XCTestCase {
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/// Simple helper for asynchronous testing.
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/// Usage in XCTestCase method:
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/// func testSomething() {
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/// doAsyncThings()
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/// eventually {
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/// /* XCTAssert goes here... */
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/// }
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/// }
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/// Cloure won't execute until timeout is met. You need to pass in an
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/// timeout long enough for your asynchronous process to finish, if it's
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/// expected to take more than the default 0.1 second.
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///
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/// - Parameters:
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/// - timeout: amout of time in seconds to wait before executing the
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/// closure.
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/// - closure: a closure to execute when `timeout` seconds has passed
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func eventually(timeout: TimeInterval = 0.1, closure: @escaping () -> Void) {
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let expectation = self.expectation(description: "")
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expectation.fulfillAfter(timeout)
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self.waitForExpectations(timeout: 60) { _ in
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closure()
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}
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}
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}
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extension XCTestExpectation {
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/// Call `fulfill()` after some time.
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///
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/// - Parameter time: amout of time after which `fulfill()` will be called.
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func fulfillAfter(_ time: TimeInterval) {
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DispatchQueue.main.asyncAfter(deadline: .now() + time) {
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self.fulfill()
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}
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}
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}
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