import XCTest
@testable import LCEssentials

private struct OnlyDecodable: Decodable, Sendable, Equatable {
    let id: Int
    let name: String
}

final class JSONDecoderDecodeTests: XCTestCase {

    func testDecodesTypeThatIsDecodableAndSendableButNotEncodable() throws {
        let data = Data(#"{"id":7,"name":"loverde"}"#.utf8)
        let value: OnlyDecodable = try JSONDecoder.decode(data: data)
        XCTAssertEqual(value, OnlyDecodable(id: 7, name: "loverde"))
    }

    func testDecodeFromStringOverload() throws {
        let value: OnlyDecodable = try JSONDecoder.decode(#"{"id":1,"name":"a"}"#)
        XCTAssertEqual(value, OnlyDecodable(id: 1, name: "a"))
    }

    func testDecodeFromURLThrowsInsteadOfCrashingOnMissingFile() {
        let missing = URL(fileURLWithPath: "/tmp/does-not-exist-\(UUID().uuidString).json")
        XCTAssertThrowsError(try JSONDecoder.decode(fromURL: missing) as OnlyDecodable)
    }
}