Sample code

wakaleo · wakaleo · commit bb90be1adc59 · 2020-07-14T17:13:11.000+01:00
diff --git a/src/test/java/com/serenitydojo/cart/Cart.java b/src/test/java/com/serenitydojo/cart/Cart.java
@@ -0,0 +1,38 @@
+package com.serenitydojo.cart;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+
+public class Cart {
+
+    List<Item> contents = new ArrayList<>();
+
+    public void add(Item item) {
+        contents.add(item);
+    }
+
+    public List<Item> getItems() {
+        return contents;
+    }
+
+    public Item getItem(int index) {
+        return contents.get(index);
+    }
+
+    Random random = new Random();
+    public Item getItemWithName(String expectedItemName) throws NoSuchItemException, ItemNotReadyException {
+
+        if (random.nextBoolean()) {
+            throw new ItemNotReadyException("Item with name " + expectedItemName + " not ready yet");
+        }
+
+        for(Item item : contents) {
+            if (item.isCalled(expectedItemName)) {
+                return item;
+            }
+        }
+        throw new NoSuchItemException("No such item with name " + expectedItemName);
+    }
+}
diff --git a/src/test/java/com/serenitydojo/cart/Item.java b/src/test/java/com/serenitydojo/cart/Item.java
@@ -0,0 +1,17 @@
+package com.serenitydojo.cart;
+
+public class Item {
+    private String name;
+
+    public Item(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public boolean isCalled(String expectedItemName) {
+        return name.equalsIgnoreCase(expectedItemName.trim());
+    }
+}
diff --git a/src/test/java/com/serenitydojo/cart/ItemNotReadyException.java b/src/test/java/com/serenitydojo/cart/ItemNotReadyException.java
@@ -0,0 +1,7 @@
+package com.serenitydojo.cart;
+
+public class ItemNotReadyException extends Throwable {
+    public ItemNotReadyException(String message) {
+        super(message);
+    }
+}
diff --git a/src/test/java/com/serenitydojo/cart/NoSuchItemException.java b/src/test/java/com/serenitydojo/cart/NoSuchItemException.java
@@ -0,0 +1,7 @@
+package com.serenitydojo.cart;
+
+public class NoSuchItemException extends Exception {
+    public NoSuchItemException(String message) {
+        super(message);
+    }
+}
diff --git a/src/test/java/com/serenitydojo/cart/TheItem.java b/src/test/java/com/serenitydojo/cart/TheItem.java
@@ -0,0 +1,24 @@
+package com.serenitydojo.cart;
+
+public class TheItem {
+    private Cart cart;
+
+    public TheItem(Cart cart) {
+        this.cart = cart;
+    }
+
+    public static TheItem inTheCart(Cart cart) {
+        return new TheItem(cart);
+    }
+
+    public Item withName(String itemName) {
+        try {
+            return cart.getItemWithName(itemName);
+        } catch (NoSuchItemException e) {
+            e.printStackTrace();
+        } catch (ItemNotReadyException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+}
diff --git a/src/test/java/com/serenitydojo/enums/WhenAddingStuffToACart.java b/src/test/java/com/serenitydojo/enums/WhenAddingStuffToACart.java
@@ -0,0 +1,57 @@
+package com.serenitydojo.enums;
+
+import com.serenitydojo.cart.*;
+import org.junit.Test;
+
+import java.io.IOException;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * In a shopping cart we should be able to
+ * - add one item
+ * - add multiple items
+ * - add multiple quantities of the same item
+ * - get a product description from the catalog
+ */
+public class WhenAddingStuffToACart {
+
+    @Test
+    public void iCanAddASingleItem() {
+        Cart cart = new Cart();
+        Item item = new Item("bread");
+
+        cart.add(item);
+
+        assertThat(cart.getItems()).contains(item);
+    }
+
+    @Test
+    public void ICanGetAnItemFromTheList() {
+        Cart cart = new Cart();
+        Item item = new Item("bread");
+        cart.add(item);
+
+        assertThat(cart.getItem(0)).isEqualTo(item);
+    }
+
+    @Test
+    public void iCanGetAnItemByName() throws NoSuchItemException, ItemNotReadyException {
+        Cart cart = new Cart();
+        Item item = new Item("bread");
+        cart.add(item);
+
+        assertThat(cart.getItemWithName("bread")).isEqualTo(item);
+    }
+
+    @Test(expected = NoSuchItemException.class)
+    public void noMatchingItemIsInTheCart() {
+        Cart cart = new Cart();
+        Item item = new Item("bread");
+        cart.add(item);
+
+        Item foundItem = TheItem.inTheCart(cart).withName("cheese");
+
+        assertThat(foundItem).isEqualTo(item);
+    }
+}
diff --git a/src/test/java/com/serenitydojo/exceptions/WhenWorkingWithExceptions.java b/src/test/java/com/serenitydojo/exceptions/WhenWorkingWithExceptions.java
@@ -1,37 +1,5 @@
 package com.serenitydojo.exceptions;
 
-import org.assertj.core.api.Assertions;
-import org.junit.Test;
-
-import java.net.MalformedURLException;
-
-import static org.assertj.core.api.Assertions.assertThat;
-
 public class WhenWorkingWithExceptions {
 
-    @Test
-    public void shouldShowTheLengthOfAString() {
-        StringProcessor stringProcessor = new StringProcessor();
-
-        String result = stringProcessor.showLengthOf("some string");
-
-        assertThat(result).isEqualTo("some string has a length of 11");
-    }
-
-    @Test
-    public void shouldShowZeroForNullStrings() {
-
-        StringProcessor stringProcessor = new StringProcessor();
-
-        String result = stringProcessor.showLengthOf(null);
-
-        assertThat(result).isEqualTo("null has a length of 0");
-    }
-
-    @Test(expected = TestEnvironmentUnavailableException.class)
-    public void shouldFindThePort() {
-            StringProcessor stringProcessor = new StringProcessor();
-
-            stringProcessor.getPortOf("A:https://www.google.com");
-    }
 }
