tdd-java-demo

commit dd58a600a472ec15fcd8a3d687b0d13d250914fd
parent b01bd7de1ac4e1264c5061e1b0e047a59235068f
Author: Jul <jul@9o.is>
Date:   Wed, 31 Mar 2021 18:34:54 +0800

verify Discount functionality

Diffstat:
A
src/test/java/takehome/DiscountTest.java
 | 
44
++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 44 insertions(+), 0 deletions(-)
diff --git a/src/test/java/takehome/DiscountTest.java b/src/test/java/takehome/DiscountTest.java
@@ -0,0 +1,43 @@
+package takehome;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+
+class DiscountTest {
+
+    public static final Item APPLE = new Item("apple", 0.10);
+    public static final Discount DISCOUNT = new Discount(0.01, APPLE);
+
+    @Test
+    void getItem() {
+        assertThat(DISCOUNT.getItem(), is(APPLE));
+    }
+
+    @Test
+    void getAmount() {
+        assertThat(DISCOUNT.getAmount(), is(0.01));
+    }
+
+    @Test
+    void noDiscount() {
+        Basket basket = createBasket(0);
+        assertThat(DISCOUNT.getDiscount(basket), is(0d));
+    }
+
+    @Test
+    void oneDiscount() {
+        Basket basket = createBasket(1);
+        assertThat(DISCOUNT.getDiscount(basket), is(0.01));
+    }
+
+    private Basket createBasket(int amount) {
+        Map<Item, Integer> amounts = new HashMap<>();
+        amounts.put(APPLE, amount);
+        return new Basket(amounts);
+    }
+}
+\ No newline at end of file