//===--- PathTests.swift --------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2024 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//

import XCTest
@testable import SwiftXcodeGen

class PathTests: XCTestCase {
  func testRelativeParent() throws {
    XCTAssertEqual(RelativePath("").parentDir, nil)
    XCTAssertEqual(RelativePath("foo").parentDir, nil)
    XCTAssertEqual(RelativePath("foo/bar").parentDir, "foo")
  }

  func testAbsoluteParent() throws {
    XCTAssertEqual(AbsolutePath("/").parentDir, nil)
    XCTAssertEqual(AbsolutePath("/foo").parentDir, "/")
    XCTAssertEqual(AbsolutePath("/foo/bar").parentDir, "/foo")
  }

  func testDropLast() throws {
    XCTAssertEqual(AbsolutePath("/").dropLast(), "/")
    XCTAssertEqual(AbsolutePath("/foo/bar").dropLast(), "/foo")
    XCTAssertEqual(AbsolutePath("/foo/bar").dropLast(2), "/")
    XCTAssertEqual(AbsolutePath("/foo/bar").dropLast(5), "/")

    XCTAssertEqual(RelativePath("").dropLast(), "")
    XCTAssertEqual(RelativePath("foo/bar").dropLast(), "foo")
    XCTAssertEqual(RelativePath("foo/bar").dropLast(2), "")
    XCTAssertEqual(RelativePath("foo/bar").dropLast(5), "")
  }

  func testExtension() throws {
    func match(
      _ ext: FileExtension, with path: String,
      value: Bool = true, file: StaticString = #file, line: UInt = #line
    ) {
      XCTAssert(path.hasExtension(ext) == value, file: file, line: line)
      XCTAssert(AnyPath(path).hasExtension(ext) == value, file: file, line: line)
    }
    match(.swift, with: "x.swift")
    match(.swift, with: "/x.swift")
    match(.swift, with: ".swift", value: false)
    match(.swift, with: "/.swift", value: false)

    match(.swift, with: "x.SWIFT")
    match(.swift, with: "/x.SWIFT")
    match(.swift, with: ".SWIFT", value: false)
    match(.swift, with: "/.SWIFT", value: false)

    match(.swift, with: "x.swiftx", value: false)

    XCTAssert("x.sWift".hasExtension(.asm, .swift))
    XCTAssert(AnyPath("x.sWift").hasExtension(.asm, .swift))
  }
}