import Foundation
import XCTest
import URLQueryItemCoder

final class ArrayEncodingTests: XCTestCase {
    struct Query: Encodable { var ids: [String] }

    func testRepeatedKeysPreserveEveryArrayElement() throws {
        let items = try URLQueryItemEncoder(arrayStrategy: .repeated)
            .encode(Query(ids: ["first", "second"]))
        XCTAssertEqual(items, [
            URLQueryItem(name: "ids", value: "first"),
            URLQueryItem(name: "ids", value: "second"),
        ])
    }

    func testDefaultEncodingKeepsIndexedKeys() throws {
        let items = try URLQueryItemEncoder().encode(Query(ids: ["first", "second"]))
        XCTAssertEqual(items, [
            URLQueryItem(name: "ids.0", value: "first"),
            URLQueryItem(name: "ids.1", value: "second"),
        ])
    }
}