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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
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iOS-SwiftUI-Code/GRDB.swift-6.29.3/Tests/GRDBTests/AnyCursorTests.swift
-88
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@@ -1,88 +0,0 @@
import XCTest
import GRDB
private struct TestError : Error { }
class AnyCursorTests: GRDBTestCase {
func testAnyCursorFromClosure() {
var i = 0
let cursor: AnyCursor<Int> = AnyCursor {
guard i < 2 else { return nil }
defer { i += 1 }
return i
}
XCTAssertEqual(try cursor.next()!, 0)
XCTAssertEqual(try cursor.next()!, 1)
XCTAssertTrue(try cursor.next() == nil) // end
}
func testAnyCursorFromThrowingClosure() {
var i = 0
let cursor: AnyCursor<Int> = AnyCursor {
guard i < 2 else { throw TestError() }
defer { i += 1 }
return i
}
XCTAssertEqual(try cursor.next()!, 0)
XCTAssertEqual(try cursor.next()!, 1)
do {
_ = try cursor.next()
XCTFail()
} catch is TestError {
} catch {
XCTFail()
}
}
func testAnyCursorFromCursor() {
let base = AnyCursor([0, 1])
// This helper function makes sure AnyCursor initializer accepts any cursor,
// and not only AnyCursor:
func makeAnyCursor<C: Cursor>(_ cursor: C) -> AnyCursor<Int> where C.Element == Int {
AnyCursor(cursor)
}
let cursor = AnyCursor(base)
XCTAssertEqual(try cursor.next()!, 0)
XCTAssertEqual(try cursor.next()!, 1)
XCTAssertTrue(try cursor.next() == nil) // end
}
func testAnyCursorFromThrowingCursor() {
var i = 0
let base: AnyCursor<Int> = AnyCursor {
guard i < 2 else { throw TestError() }
defer { i += 1 }
return i
}
func makeAnyCursor<C: Cursor>(_ cursor: C) -> AnyCursor<Int> where C.Element == Int {
AnyCursor(cursor)
}
let cursor = makeAnyCursor(base)
XCTAssertEqual(try cursor.next()!, 0)
XCTAssertEqual(try cursor.next()!, 1)
do {
_ = try cursor.next()
XCTFail()
} catch is TestError {
} catch {
XCTFail()
}
}
func testAnyCursorFromIterator() {
let cursor = AnyCursor(iterator: [0, 1].makeIterator())
XCTAssertEqual(try cursor.next()!, 0)
XCTAssertEqual(try cursor.next()!, 1)
XCTAssertTrue(try cursor.next() == nil) // end
XCTAssertTrue(try cursor.next() == nil) // past the end
}
func testAnyCursorFromSequence() {
let cursor = AnyCursor([0, 1])
XCTAssertEqual(try cursor.next()!, 0)
XCTAssertEqual(try cursor.next()!, 1)
XCTAssertTrue(try cursor.next() == nil) // end
XCTAssertTrue(try cursor.next() == nil) // past the end
}
}