//
//  EntityDecodingTests.swift
//  RSParserTests
//
//  Created by Brent Simmons on 12/30/17.
//  Copyright © 2017 Ranchero Software, LLC. All rights reserved.
//

import XCTest
import Parser

final class EntityDecodingTests: XCTestCase {

    func test39Decoding() {

		// Bug found by Manton Reece — the ' entity was not getting decoded by NetNewsWire in JSON Feeds from micro.blog.

		let s = "These are the times that try men's souls."
		let decoded = HTMLEntityDecoder.decodedString(s)

		XCTAssertEqual(decoded, "These are the times that try men's souls.")
	}

	func testEntityAtBeginning() {

		let s = "'leading single quote"
		let decoded = HTMLEntityDecoder.decodedString(s)

		XCTAssertEqual(decoded, "'leading single quote")
	}

	func testEntityAtEnd() {

		let s = "trailing single quote'"
		let decoded = HTMLEntityDecoder.decodedString(s)

		XCTAssertEqual(decoded, "trailing single quote'")
	}

	func testEntityInMiddle() {

		let s = "entity ç in middle"
		let decoded = HTMLEntityDecoder.decodedString(s)

		XCTAssertEqual(decoded, "entity ç in middle")
	}

	func testMultipleEntitiesInARow() {

		let s = "çèmult……iple 'æ"entities÷♥"
		let decoded = HTMLEntityDecoder.decodedString(s)

		XCTAssertEqual(decoded, "çèmult……iple 'æ\"entities÷♥")
	}

	func testOnlyEntity() {
		var s = "…"
		var decoded = HTMLEntityDecoder.decodedString(s)

		XCTAssertEqual(decoded, "…")

		s = "…"
		decoded = HTMLEntityDecoder.decodedString(s)
		XCTAssertEqual(decoded, "…")

		s = "'"
		decoded = HTMLEntityDecoder.decodedString(s)
		XCTAssertEqual(decoded, "'")

		s = "§"
		decoded = HTMLEntityDecoder.decodedString(s)
		XCTAssertEqual(decoded, "§")

		s = "£"
		decoded = HTMLEntityDecoder.decodedString(s)
		XCTAssertEqual(decoded, "£")
	}

	func testPerformance() {

		// 0.009 sec on my 2012 iMac.
		let s = stringForResource("DaringFireball", "html")
		self.measure {
			_ = HTMLEntityDecoder.decodedString(s)
		}
	}

}

func stringForResource(_ filename: String, _ fileExtension: String) -> String {

	let filename = "Resources/\(filename)"
	let path = Bundle.module.path(forResource: filename, ofType: fileExtension)!
	return try! String(contentsOfFile: path)
}