First session

README.md

@@ -41,4 +41,4 @@ Ce dépôt Git a pour but de partager les différents ateliers pouvant être ré
 | [Back from GDCR avec Maxime, Séraphin, Anthony et Colin](https://www.youtube.com/watch?v=CHfUGdnSX6I)                 | Discussion  |            |
 | [Factory patterns](/factory-patterns)                                                                                 | Code&coffee | Facile     |
 | [Exceptions](/exceptions)                                                                                             | Code&coffee | Facile     |
-| [Puissance 4](/puissance-4)                                                                                           | Kata        | ?          |
+| [Puissance 4](/puissance-4)                                                                                           | Kata        | Moyenne    |

gilded-rose/src/main/java/com/gildedrose/GildedRose.java

@@ -4,14 +4,14 @@ class GildedRose {
   private static final String SULFURAS_NAME = "Sulfuras, Hand of Ragnaros";
   private static final String BACKSTAGE_PASSES_NAME = "Backstage passes to a TAFKAL80ETC concert";
   private static final String AGED_BRIE_NAME = "Aged Brie";
-  Item[] items;
+  private Item[] items;
 
   public GildedRose(Item[] items) {
-    this.items = items;
+    this.setItems(items);
   }
 
   public void updateQuality() {
-    for (Item item : items) {
+    for (Item item : getItems()) {
       if (SULFURAS_NAME.equals(item.name)) {
         continue;
       }
@@ -71,4 +71,12 @@ class GildedRose {
       item.quality = item.quality - 1;
     }
   }
+
+  public Item[] getItems() {
+    return items;
+  }
+
+  public void setItems(Item[] items) {
+    this.items = items;
+  }
 }

gilded-rose/src/test/java/com/gildedrose/GildedRoseTest.java

 package com.gildedrose;
 
-import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.*;
 
 import java.util.Arrays;
 import org.junit.jupiter.api.Test;
 
 class GildedRoseTest {
 
-  @Test
-  void shouldUpdateForOneDay() {
-    GildedRose rose = new GildedRose(ItemsProvider.get());
-
-    rose.updateQuality();
-
-    assertThat(rose.items).extracting(item -> item.sellIn).containsExactly(9, 1, 4, 0, -1, 14, 9, 4);
-    assertThat(rose.items).extracting(item -> item.quality).containsExactly(19, 1, 6, 80, 80, 21, 50, 50);
-  }
-
-  @Test
-  void shouldUpdateForTwoDays() {
-    GildedRose rose = new GildedRose(ItemsProvider.get());
-
-    rose.updateQuality();
-    rose.updateQuality();
-
-    assertThat(rose.items).extracting(item -> item.sellIn).containsExactly(8, 0, 3, 0, -1, 13, 8, 3);
-    assertThat(rose.items).extracting(item -> item.quality).containsExactly(18, 2, 5, 80, 80, 22, 50, 50);
-  }
-
   @Test
   void shouldBehaveLikeGoldenMaster() {
     GildedRose rose = new GildedRose(ItemsProvider.get());
@@ -37,10 +16,10 @@ class GildedRoseTest {
       rose.updateQuality();
       golden.updateQuality();
 
-      assertThat(rose.items)
+      assertThat(rose.getItems())
         .extracting(item -> item.sellIn)
         .containsExactly(Arrays.stream(golden.items).map(item -> item.sellIn).toArray(Integer[]::new));
-      assertThat(rose.items)
+      assertThat(rose.getItems())
         .extracting(item -> item.quality)
         .containsExactly(Arrays.stream(golden.items).map(item -> item.quality).toArray(Integer[]::new));
     }

puissance-4/README.md

 # Puissance IV
 
-Résolution, en live, de [Puissance 4](/puissance-4).
+Refactoring, en live, d'un code de puissance 4 fait en première année d'études
 
 -   **Auteurs** : Colin DAMON & Cyril DUPONT
 -   **Date** : 22/12/2020
 -   **Langage** : Java
--   **Niveau** : ?
--   **Replay** : [Puissance 4 - Cyril & Colin](?)
+-   **Niveau** : Moyen
+-   **Replay** : TODO

puissance-4/pom.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
 
-    <parent>
-        <version>1.0.0</version>
-        <groupId>fr.ippon.kata</groupId>
-        <artifactId>java-parent</artifactId>
-        <relativePath>../java-parent</relativePath>
-    </parent>
+  <parent>
+    <version>1.0.0</version>
+    <groupId>fr.ippon.kata</groupId>
+    <artifactId>java-parent</artifactId>
+    <relativePath>../java-parent</relativePath>
+  </parent>
 
-    <version>1.0.0-SNAPSHOT</version>
-    <artifactId>puissance-4</artifactId>
+  <version>1.0.0-SNAPSHOT</version>
+  <artifactId>puissance-4</artifactId>
 
-    <name>Puissance4</name>
+  <name>Puissance4</name>
 
-    <developers>
-        <developer>
-            <email>cdamon@ippon.fr</email>
-            <name>Colin DAMON</name>
-        </developer>
-        <developer>
-            <email>cdupont@ippon.fr</email>
-            <name>Cyril DUPONT</name>
-        </developer>
-    </developers>
+  <developers>
+    <developer>
+      <email>cdamon@ippon.fr</email>
+      <name>Colin DAMON</name>
+    </developer>
+    <developer>
+      <email>cdupont@ippon.fr</email>
+      <name>Cyril DUPONT</name>
+    </developer>
+  </developers>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.awaitility</groupId>
+      <artifactId>awaitility</artifactId>
+      <version>3.0.0</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
 </project>

puissance-4/src/main/java/fr/ippon/kata/puissance4/Joueur.java

+package fr.ippon.kata.puissance4;
+
+public enum Joueur {
+  JOUEUR_1('X'),
+  JOUEUR_2('O');
+  private final char pion;
+
+  private Joueur(char pion) {
+    this.pion = pion;
+  }
+
+  public char getPion() {
+    return pion;
+  }
+}

puissance-4/src/test/java/fr/ippon/kata/puissance4/Puissance4Test.java

 package fr.ippon.kata.puissance4;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.assertj.core.api.Assertions.*;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.PrintStream;
+import java.io.StringReader;
+import java.util.Arrays;
+import java.util.NoSuchElementException;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+import org.awaitility.Awaitility;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 class Puissance4Test {
-    // todo writing tests
+  private PrintStream systemOut;
+  private InputStream systemIn;
+
+  private ByteArrayOutputStream out;
+  private SystemInMock in = new SystemInMock();
+  private Thread runner;
+
+  @BeforeEach
+  void changeOutput() {
+    systemOut = System.out;
+    systemIn = System.in;
+
+    out = new ByteArrayOutputStream();
+    System.setOut(new PrintStream(out));
+    System.setIn(in);
+  }
+
+  @AfterEach
+  void resetOutput() {
+    System.setOut(systemOut);
+    System.setIn(systemIn);
+  }
+
+  @AfterEach
+  void stopGame() {
+    runner.interrupt();
+  }
+
+  @Test
+  void shouldDisplayMenu() {
+    play();
+
+    assertGameOrder("Puissance 4", "[3] Regle du jeu");
+  }
+
+  @Test
+  void shouldDisplayRules() throws InterruptedException {
+    play("3", "1");
+
+    assertGameOrder("[3] Regle du jeu", "Le but du jeu", "la partie est déclarée nulle", "[3] Regle du jeu");
+  }
+
+  @Test
+  void shouldPlayTwoPlayerGame() {
+    play("2", "Colin", "Cyril", "1", "2", "1", "2", "1", "2", "1");
+
+    assertGameOrder("Colin a gagné !");
+  }
+
+  @Test
+  void shouldAskMenuAgainForOutOfBoundOption() {
+    play("5", "0", "3");
+
+    assertGameOrder("[3] Regle du jeu");
+  }
+
+  @Test
+  void shouldAskColumnAgainForBadPlayerOneInput() {
+    play("2", "Colin", "Cyril", "0", "9", "1");
+
+    assertGameOrder(
+      "Choix incorrect, entrez un nombre entre 1 et 8",
+      "Choix incorrect, entrez un nombre entre 1 et 8",
+      "| X| *| *| *| *| *| *| *|"
+    );
+  }
+
+  @Test
+  void shouldAskColumnAgainForBadPlayerTwoInput() {
+    play("2", "Colin", "Cyril", "1", "9", "0", "2");
+
+    assertGameOrder(
+      "Choix incorrect, entrez un nombre entre 1 et 8",
+      "Choix incorrect, entrez un nombre entre 1 et 8",
+      "| X| O| *| *| *| *| *| *|"
+    );
+  }
+
+  @Test
+  void shouldPlayAgainsIA() {
+    play("1", "Colin", "4", "5", "6", "7", "8");
+
+    assertGameOrder(
+      "| *| *| *| X| *| *| *| *|",
+      "| *| *| *| X| O| *| *| *|",
+      "| *| *| *| *| X| *| *| *|",
+      "| *| *| *| O| X| *| *| *|",
+      "| *| *| *| X| O| X| *| *|",
+      "| *| *| *| O| *| *| *| *|",
+      "L'ordinateur a gagné !"
+    );
+  }
+
+  private void play(String... inputs) {
+    in.provideText(Arrays.stream(inputs).collect(Collectors.joining("\n")));
+
+    runner = startGame();
+  }
+
+  private Thread startGame() {
+    Thread runner = new Thread(
+      () -> {
+        try {
+          Puissance4.main(null);
+        } catch (NoSuchElementException e) {
+          // Nothing to do
+        }
+      }
+    );
+    runner.start();
+
+    return runner;
+  }
+
+  private void assertGameOrder(String... elements) {
+    Awaitility
+      .await()
+      .pollDelay(5, TimeUnit.MILLISECONDS)
+      .atMost(1000, TimeUnit.MILLISECONDS)
+      .untilAsserted(
+        () -> {
+          String message = new String(out.toByteArray()).intern();
+
+          for (String element : elements) {
+            assertThat(message).contains(element);
+            message = message.substring(message.indexOf(element) + element.length());
+          }
+        }
+      );
+  }
+
+  private static class SystemInMock extends InputStream {
+    private StringReader currentReader;
+    private IOException ioException;
+    private RuntimeException runtimeException;
+
+    void provideText(String text) {
+      currentReader = new StringReader(text);
+    }
+
+    @Override
+    public int read() throws IOException {
+      if (currentReader == null) {
+        return 0;
+      }
+
+      int character = currentReader.read();
+      if (character == -1) handleEmptyReader();
+      return character;
+    }
+
+    private void handleEmptyReader() throws IOException {
+      if (ioException != null) throw ioException; else if (runtimeException != null) throw runtimeException;
+    }
+
+    @Override
+    public int read(byte[] buffer, int offset, int len) throws IOException {
+      if (buffer == null) throw new NullPointerException(); else if (
+        offset < 0 || len < 0 || len > buffer.length - offset
+      ) throw new IndexOutOfBoundsException(); else if (len == 0) return 0; else return readNextLine(buffer, offset, len);
+    }
+
+    private int readNextLine(byte[] buffer, int offset, int len) throws IOException {
+      int c = read();
+      if (c == -1) return -1;
+      buffer[offset] = (byte) c;
+
+      int i = 1;
+      for (; (i < len) && !isCompleteLineWritten(buffer, i - 1); ++i) {
+        byte read = (byte) read();
+        if (read == -1) break; else buffer[offset + i] = read;
+      }
+      return i;
+    }
+
+    private boolean isCompleteLineWritten(byte[] buffer, int indexLastByteWritten) {
+      byte[] separator = System.lineSeparator().getBytes();
+      int indexFirstByteOfSeparator = indexLastByteWritten - separator.length + 1;
+      return indexFirstByteOfSeparator >= 0 && contains(buffer, separator, indexFirstByteOfSeparator);
+    }
+
+    private boolean contains(byte[] array, byte[] pattern, int indexStart) {
+      for (int i = 0; i < pattern.length; ++i) if (array[indexStart + i] != pattern[i]) return false;
+      return true;
+    }
+  }
 }