admin/UUVPN
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

add

Browse Source
This commit is contained in:
zeus
2025-01-22 16:22:33 +08:00
parent 09b9cec8ec
commit 738c373a77
2534 changed files with 0 additions and 486292 deletions
Download Patch File Download Diff File Expand all files Collapse all files
iOS-SwiftUI-Code/GRDB.swift-6.29.3/Tests/CombineExpectations/PublisherExpectations/Next.swift
-81
View File
@@ -1,81 +0,0 @@
#if canImport(Combine)
import XCTest
@available(iOS 13, macOS 10.15, tvOS 13, watchOS 6, *)
extension PublisherExpectations {
/// A publisher expectation which waits for the recorded publisher to emit
/// `count` elements, or to complete.
///
/// When waiting for this expectation, a `RecordingError.notEnoughElements`
/// is thrown if the publisher does not publish `count` elements after last
/// waited expectation. The publisher error is thrown if the publisher fails
/// before publishing the next `count` elements.
///
/// Otherwise, an array of exactly `count` elements is returned.
///
/// For example:
///
/// // SUCCESS: no timeout, no error
/// func testArrayOfThreeElementsPublishesTwoThenOneElement() throws {
/// let publisher = ["foo", "bar", "baz"].publisher
/// let recorder = publisher.record()
///
/// var elements = try wait(for: recorder.next(2), timeout: 1)
/// XCTAssertEqual(elements, ["foo", "bar"])
///
/// elements = try wait(for: recorder.next(1), timeout: 1)
/// XCTAssertEqual(elements, ["baz"])
/// }
public struct Next<Input, Failure: Error>: PublisherExpectation {
let recorder: Recorder<Input, Failure>
let count: Int
init(recorder: Recorder<Input, Failure>, count: Int) {
precondition(count >= 0, "Can't take a prefix of negative length")
self.recorder = recorder
self.count = count
}
public func _setup(_ expectation: XCTestExpectation) {
if count == 0 {
// Such an expectation is immediately fulfilled, by essence.
expectation.expectedFulfillmentCount = 1
expectation.fulfill()
} else {
expectation.expectedFulfillmentCount = count
recorder.fulfillOnInput(expectation, includingConsumed: false)
}
}
/// Returns the expected output, or throws an error if the
/// expectation fails.
///
/// For example:
///
/// // SUCCESS: no error
/// func testArrayOfThreeElementsSynchronouslyPublishesTwoThenOneElement() throws {
/// let publisher = ["foo", "bar", "baz"].publisher
/// let recorder = publisher.record()
///
/// var elements = try recorder.next(2).get()
/// XCTAssertEqual(elements, ["foo", "bar"])
///
/// elements = try recorder.next(1).get()
/// XCTAssertEqual(elements, ["baz"])
/// }
public func get() throws -> [Input] {
try recorder.value { (_, completion, remainingElements, consume) in
if remainingElements.count >= count {
consume(count)
return Array(remainingElements.prefix(count))
}
if case let .failure(error) = completion {
throw error
} else {
throw RecordingError.notEnoughElements
}
}
}
}
}
#endif