tdd-java-demo

commit 79b90c4da8f04eb47ee139c018d57aef072c44a2
parent 03341fecf7140aa6b09a37ed4264b5614ad79f8b
Author: Jul <jul@9o.is>
Date:   Thu,  1 Apr 2021 00:39:41 +0800

validate discount on start date

Diffstat:
M
src/main/java/takehome/Discount.java
 | 
10
++++++----
M
src/test/java/takehome/DiscountTest.java
 | 
6
++++++

2 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/src/main/java/takehome/Discount.java b/src/main/java/takehome/Discount.java
@@ -10,14 +10,16 @@ import java.util.Arrays;
 public class Discount {
     private final Multiset<Item> items;
     private final double amount;
+    private final LocalDate startDate;
 
     public Discount(double amount, Item ...items) {
-        this.amount = amount;
-        this.items = HashMultiset.create(Arrays.asList(items));
+        this(amount, LocalDate.MIN, LocalDate.MAX, items);
     }
 
     public Discount(double amount, LocalDate startDate, LocalDate endDate, Item... items) {
-        this(amount, items);
+        this.amount = amount;
+        this.startDate = startDate;
+        this.items = HashMultiset.create(Arrays.asList(items));
     }
 
     public double getAmount() {
@@ -41,6 +43,6 @@ public class Discount {
     }
 
     public boolean isValid(LocalDate date) {
-        return false;
+        return startDate.equals(date);
     }
 }
diff --git a/src/test/java/takehome/DiscountTest.java b/src/test/java/takehome/DiscountTest.java
@@ -75,6 +75,12 @@ class DiscountTest {
         assertThat(discount.isValid(YESTERDAY), is(false));
     }
 
+    @Test
+    void isValidOnStartDate() {
+        Discount discount = discountByDate(TODAY, TOMORROW);
+        assertThat(discount.isValid(TODAY), is(true));
+    }
+
     private Discount discountByDate(LocalDate startDate, LocalDate endDate) {
         return new Discount(0.01, startDate, endDate, APPLE);
     }