import CopilotModel
import XCTest
@testable import Service

class PseudoCommandHandlerFileProcessingTests: XCTestCase {
    func test_convert_range_0_0() {
        XCTAssertEqual(
            PseudoCommandHandler().convertRangeToCursorRange(0...0, in: "\n"),
            CursorRange(start: .zero, end: .init(line: 0, character: 0))
        )
    }

    func test_convert_range_same_line() {
        XCTAssertEqual(
            PseudoCommandHandler().convertRangeToCursorRange(1...5, in: "123456789\n"),
            CursorRange(start: .init(line: 0, character: 1), end: .init(line: 0, character: 5))
        )
    }

    func test_convert_range_multiple_line() {
        XCTAssertEqual(
            PseudoCommandHandler()
                .convertRangeToCursorRange(5...25, in: "123456789\n123456789\n123456789\n"),
            CursorRange(start: .init(line: 0, character: 5), end: .init(line: 2, character: 5))
        )
    }
    
    func test_convert_range_all_line() {
        XCTAssertEqual(
            PseudoCommandHandler()
                .convertRangeToCursorRange(0...29, in: "123456789\n123456789\n123456789\n"),
            CursorRange(start: .init(line: 0, character: 0), end: .init(line: 2, character: 9))
        )
    }
    
    func test_convert_range_out_of_range() {
        XCTAssertEqual(
            PseudoCommandHandler()
                .convertRangeToCursorRange(0...70, in: "123456789\n123456789\n123456789\n"),
            CursorRange(start: .init(line: 0, character: 0), end: .init(line: 3, character: 0))
        )
    }
}