From 305f22e80103ae5f0cbcf34f31c6a575dfb4698d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adele=20Iren=20Westrum=20Kj=C3=B8lstad?=
<aikjolst@stud.ntnu.no>
Date: Wed, 15 Mar 2023 12:36:00 +0100
Subject: [PATCH] Created and implemented FoodBudget
---
.../demo/data/Budget/FoodBudget.java | 128 ++++++++++++++++++
.../demo/data/Budget/FoodBudgetTest.java | 85 ++++++++++++
2 files changed, 213 insertions(+)
create mode 100644 src/main/java/no/ntnu/idatt1002/demo/data/Budget/FoodBudget.java
create mode 100644 src/test/java/no/ntnu/idatt1002/demo/data/Budget/FoodBudgetTest.java
diff --git a/src/main/java/no/ntnu/idatt1002/demo/data/Budget/FoodBudget.java b/src/main/java/no/ntnu/idatt1002/demo/data/Budget/FoodBudget.java
new file mode 100644
index 00000000..58b34823
--- /dev/null
+++ b/src/main/java/no/ntnu/idatt1002/demo/data/Budget/FoodBudget.java
@@ -0,0 +1,128 @@
+package no.ntnu.idatt1002.demo.data.Budget;
+
+import java.sql.Date;
+import java.time.Duration;
+import java.time.LocalDate;
+import java.time.ZoneId;
+import java.time.temporal.ChronoUnit;
+import java.time.temporal.Temporal;
+import java.util.Calendar;
+
+/**
+ * Class that represents FoodBudget and implements the Budget interface.
+ *
+ * @author Adele
+ */
+public class FoodBudget implements Budget {
+
+ private int budgetAmount;
+
+ private int budgetPeriod;
+
+ /**
+ * The constructor of a new FoodBudget.
+ *
+ * @param budgetPeriod The period the budget are going to last for
+ * @param budgetAmount The amount that the budget consist of
+ *
+ */
+ public FoodBudget(int budgetPeriod, int budgetAmount){
+ this.budgetPeriod = budgetPeriod;
+ this.budgetAmount = budgetAmount;
+ }
+
+ /**
+ * This method returns the amount in the foodBudget as an int
+ *
+ * @return the amount left in the foodBudget
+ *
+ */
+ public int getBudgetAmount() {
+ return budgetAmount;
+ }
+
+ /**
+ *
+ * @return
+ *
+ */
+ public int getBudgetPeriod() {
+ return budgetPeriod;
+ }
+
+ /**
+ * This method returns the amount of days left in the period as a string
+ *
+ * @return
+ *
+ */
+ public long getDaysLeftOfBudgetPeriod() {
+ LocalDate today = LocalDate.now();
+ LocalDate end = today.plus(Duration.ofDays(getBudgetPeriod()));
+
+ Date todaysDate = (Date) Date.from(today.atStartOfDay(ZoneId.systemDefault()).toInstant());
+ Date endDate = (Date) Date.from(end.atStartOfDay(ZoneId.systemDefault()).toInstant());
+
+ Calendar cStart = Calendar.getInstance(); cStart.setTime(todaysDate);
+ Calendar cEnd = Calendar.getInstance(); cEnd.setTime(endDate);
+
+ long timeLeft = ChronoUnit.DAYS.between((Temporal) cStart, (Temporal) cEnd);
+
+ return timeLeft;
+ }
+
+ /**
+ *
+ * @param amountBudget
+ *
+ */
+ @Override
+ public void setAmountBudget(int amountBudget) {
+ if (amountBudget < 0) {
+ throw new IllegalArgumentException("Illegal amount in budget");
+ }
+
+ budgetAmount = amountBudget;
+ }
+
+ /**
+ *
+ * @param periodOfTheBudget
+ *
+ */
+ @Override
+ public void setBudgetPeriod(int periodOfTheBudget) {
+ if (periodOfTheBudget < 0) {
+ throw new IllegalArgumentException("Illegal period for the budget");
+ }
+
+ budgetPeriod = periodOfTheBudget;
+ }
+
+ /**
+ *
+ * @param amountToAddToBudget
+ *
+ */
+ @Override
+ public void addToBudget(int amountToAddToBudget) {
+ if (amountToAddToBudget < 0){
+ throw new IllegalArgumentException("Amount to be added to the budget cant be below zero");
+ }
+ budgetAmount += amountToAddToBudget;
+ }
+
+ /**
+ *
+ * @param amountToSubtractFromBudget
+ *
+ */
+ @Override
+ public void subtractFromBudget(int amountToSubtractFromBudget) {
+ if (amountToSubtractFromBudget < 0){
+ throw new IllegalArgumentException("Amount to be subtracted from the budget cant be below zero");
+ }
+ budgetAmount -= amountToSubtractFromBudget;
+ }
+
+}
diff --git a/src/test/java/no/ntnu/idatt1002/demo/data/Budget/FoodBudgetTest.java b/src/test/java/no/ntnu/idatt1002/demo/data/Budget/FoodBudgetTest.java
new file mode 100644
index 00000000..22503bb9
--- /dev/null
+++ b/src/test/java/no/ntnu/idatt1002/demo/data/Budget/FoodBudgetTest.java
@@ -0,0 +1,85 @@
+package no.ntnu.idatt1002.demo.data.Budget;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class FoodBudgetTest {
+
+ @Test
+ void set_amount_budget() {
+ FoodBudget foodBudget = new FoodBudget(30, 0);
+ int amount = 2000;
+ foodBudget.setAmountBudget(amount);
+
+ assertEquals(amount, foodBudget.getBudgetAmount());
+ }
+
+ @Test
+ void set_amount_budget_negativ_amount() {
+ FoodBudget foodBudget = new FoodBudget(30, 0);
+ int amount = -2000;
+
+ assertThrows(IllegalArgumentException.class, () -> foodBudget.setAmountBudget(amount));
+ }
+
+ @Test
+ void set_budget_period() {
+ FoodBudget foodBudget = new FoodBudget(0, 30);
+ int period = 30;
+ foodBudget.setBudgetPeriod(period);
+
+ assertEquals(period,foodBudget.getBudgetPeriod());
+ }
+
+ @Test
+ void set_budget_period_negative_period() {
+ FoodBudget foodBudget = new FoodBudget(0, 30);
+ int period = -5;
+
+ assertThrows(IllegalArgumentException.class, () -> foodBudget.setBudgetPeriod(period));
+ }
+
+ @Test
+ void add_to_budget_positive_number() {
+ FoodBudget foodBudget = new FoodBudget(0, 30);
+ int beforeAdding = foodBudget.getBudgetAmount();
+ int amountToBeAdded = 50;
+ foodBudget.addToBudget(amountToBeAdded);
+
+ assertEquals(beforeAdding + amountToBeAdded, foodBudget.getBudgetAmount());
+
+ }
+
+ @Test
+ void add_to_budget_negative_number() {
+ FoodBudget foodBudget = new FoodBudget(0, 30);
+ int amountToBeAdded = -7;
+
+ assertThrows(IllegalArgumentException.class, () -> foodBudget.addToBudget(amountToBeAdded));
+ }
+
+ @Test
+ void subtract_from_budget_positive_number() {
+ FoodBudget foodBudget = new FoodBudget(0, 30);
+ int beforeSubtracting = foodBudget.getBudgetAmount();
+ int amountToBeSubtracted = 50;
+ foodBudget.subtractFromBudget(amountToBeSubtracted);
+
+ assertEquals(beforeSubtracting - amountToBeSubtracted, foodBudget.getBudgetAmount());
+ }
+
+ @Test
+ void subtract_from_budget_negative_number() {
+ FoodBudget foodBudget = new FoodBudget(0, 30);
+ int amountToBeSubtracted = -7;
+
+ assertThrows(IllegalArgumentException.class, () -> foodBudget.subtractFromBudget(amountToBeSubtracted));
+ }
+
+ @Test
+ void getDaysLeftOfBudgetPeriod(){
+
+ }
+
+}
\ No newline at end of file
--
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