Downloads (cached) and runs the GuildedRose TextTestFixtureTest(TestTestTest)

TextTestTest.java

package com.gildedrose;

import org.junit.BeforeClass;
import org.junit.Test;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;

import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertThat;

public class TextTestTest {

    private static File fixtureFile = new File("./fixture.txt");
    private static String fixture;

    @BeforeClass
    public static void downloadTextTestFixtureIfNotExist() throws IOException {
        if(!fixtureFile.exists()) {
            URL fixture = new URL("https://raw.githubusercontent.com/emilybache/GildedRose-Refactoring-Kata/master/texttests/ThirtyDays/stdout.gr");
            InputStream in = fixture.openStream();
            Files.copy(in, fixtureFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
            in.close();
        }
        fixture = new String(Files.readAllBytes(fixtureFile.toPath()));
    }

    @Test
    public void itShouldYieldTheSameTextTestResult() {
        assertThat(getTextTestResult(), is(fixture));
    }

    public String getTextTestResult() {
        StringBuilder sb = new StringBuilder();
        sb.append("OMGHAI!"); sb.append("\n");

        Item[] items = new Item[] {
                new Item("+5 Dexterity Vest", 10, 20), //
                new Item("Aged Brie", 2, 0), //
                new Item("Elixir of the Mongoose", 5, 7), //
                new Item("Sulfuras, Hand of Ragnaros", 0, 80), //
                new Item("Sulfuras, Hand of Ragnaros", -1, 80),
                new Item("Backstage passes to a TAFKAL80ETC concert", 15, 20),
                new Item("Backstage passes to a TAFKAL80ETC concert", 10, 49),
                new Item("Backstage passes to a TAFKAL80ETC concert", 5, 49),
                // this conjured item does not work properly yet
                new Item("Conjured Mana Cake", 3, 6) };

        GildedRose app = new GildedRose(items);

        int days = 31;

        for (int i = 0; i < days; i++) {
            sb.append("-------- day " + i + " --------"); sb.append("\n");
            sb.append("name, sellIn, quality"); sb.append("\n");
            for (Item item : items) {
                sb.append(item); sb.append("\n");
            }
            sb.append("\n");
            app.updateQuality();
        }
        return sb.toString();
    }
}