first commit

.idea/compiler.xml

@@ -7,10 +7,12 @@
         <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
         <outputRelativeToContentRoot value="true" />
         <module name="bankaccountlab" />
+        <module name="productmanager" />
       </profile>
     </annotationProcessing>
     <bytecodeTargetLevel target="1.8">
       <module name="bankaccountlab" target="1.5" />
+      <module name="productmanager" target="8" />
     </bytecodeTargetLevel>
   </component>
 </project>

.idea/libraries/Maven__junit_junit_4_12.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: junit:junit:4.12">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/junit/junit/4.12/junit-4.12.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/junit/junit/4.12/junit-4.12-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/junit/junit/4.12/junit-4.12-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Maven__org_hamcrest_hamcrest_core_1_3.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.hamcrest:hamcrest-core:1.3">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/modules.xml

@@ -3,6 +3,7 @@
   <component name="ProjectModuleManager">
     <modules>
       <module fileurl="file://$PROJECT_DIR$/bankaccountlab.iml" filepath="$PROJECT_DIR$/bankaccountlab.iml" />
+      <module fileurl="file://$PROJECT_DIR$/productmanager.iml" filepath="$PROJECT_DIR$/productmanager.iml" />
     </modules>
   </component>
 </project>

pom.xml

@@ -7,6 +7,26 @@
     <groupId>com.zipcodewilmington</groupId>
     <artifactId>productmanager</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>8</source>
+                    <target>8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
 
 </project>

src/main/java/com/zipcodewilmington/productmanager/Product.java

@@ -1,7 +0,0 @@
-package com.zipcodewilmington.productmanager;
-
-/**
- * Created by leon on 1/10/18.
- */
-public class Product {
-}

src/main/java/com/zipcodewilmington/productmanager/inventory/Inventory.java

@@ -0,0 +1,58 @@
+package com.zipcodewilmington.productmanager.inventory;
+
+import com.zipcodewilmington.productmanager.inventory.products.Product;
+
+import java.util.List;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class Inventory {
+    private List<Product> productList;
+
+    public Inventory(List<Product> productList) {
+
+    }
+
+    public Inventory() {
+
+    }
+
+    public void add(Product product) {
+
+    }
+
+    public List<Product> getProductList() {
+        return null;
+    }
+
+    public Boolean contains(Product product) {
+        return null;
+    }
+
+    public Product findById(Long id) {
+        return null;
+    }
+
+    public Integer getTotalQuantity() {
+        return null;
+    }
+
+    public Double getTotalValue() {
+        return null;
+    }
+
+    public void remove(Product product) {
+    }
+
+    public void removeById(Long id) {
+
+    }
+
+    @Override
+    public String toString() {
+        return "Inventory{" +
+                "productList=" + productList +
+                '}';
+    }
+}

src/main/java/com/zipcodewilmington/productmanager/inventory/InventoryManager.java

@@ -0,0 +1,92 @@
+package com.zipcodewilmington.productmanager.inventory;
+
+import com.zipcodewilmington.productmanager.inventory.products.Product;
+import com.zipcodewilmington.productmanager.utils.Console;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class InventoryManager {
+    private Inventory inventory;
+    private Console console;
+
+    public InventoryManager() {
+        this(new Inventory(), new Console());
+    }
+
+    public InventoryManager(Inventory inventory, Console console) {
+        this.inventory = inventory;
+        this.console = console;
+    }
+
+    public void welcome() {
+        String userInput = console.getStringInput(new StringBuilder()
+                .append("Welcome to the inventory manager!")
+                .append("\nFrom here you can select any of the following options:")
+                .append("\n\t[ add ] a product to the inventory")
+                .append("\n\t[ remove ] a product from the inventory")
+                .append("\n\t[ view inventory ] the inventory")
+                .append("\n\t[ view product ] in the inventory")
+                .toString());
+
+        switch (userInput.toLowerCase()) {
+            case "add":
+                add();
+                break;
+
+            case "remove":
+                remove();
+                break;
+
+            case "view inventory":
+                viewInventory();
+                break;
+
+            case "view product":
+                viewProduct();
+                break;
+        }
+    }
+
+    public void add() {
+        console.println("Adding an item to the inventory");
+        Long id = console.getLongInput("What is the id of the item?");
+        Double price = console.getDoubleInput("What is the price of the item?");
+        Integer quantity = console.getIntegerInput("What is the quantity of the item?");
+        inventory.add(new Product(id, price, quantity));
+    }
+
+
+    public void remove() {
+        Long id = console.getLongInput("What is the id of the item?");
+        inventory.removeById(id);
+        console.println("Item removed.");
+    }
+
+    public void viewProduct() {
+        Long id = console.getLongInput("What is the id of the item?");
+        console.println("Item found.");
+        console.println("Displaying details.");
+        console.println(inventory.findById(id).toString());
+    }
+
+    public void viewInventory() {
+        console.println(inventory.toString());
+    }
+
+    public Inventory getInventory() {
+        return inventory;
+    }
+
+    public void setInventory(Inventory inventory) {
+        this.inventory = inventory;
+    }
+
+    public Console getConsole() {
+        return console;
+    }
+
+    public void setConsole(Console console) {
+        this.console = console;
+    }
+}

src/main/java/com/zipcodewilmington/productmanager/inventory/products/Butter.java

@@ -0,0 +1,10 @@
+package com.zipcodewilmington.productmanager.inventory.products;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class Butter extends Product {
+    public Butter(Long id, Integer quantity) {
+        super(id, 1.5, quantity);
+    }
+}

src/main/java/com/zipcodewilmington/productmanager/inventory/products/Eggs.java

@@ -0,0 +1,10 @@
+package com.zipcodewilmington.productmanager.inventory.products;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class Eggs extends Product {
+    public Eggs(Long id, Integer quantity) {
+        super(id, 2.25, quantity);
+    }
+}

src/main/java/com/zipcodewilmington/productmanager/inventory/products/Milk.java

@@ -0,0 +1,10 @@
+package com.zipcodewilmington.productmanager.inventory.products;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class Milk extends Product {
+    public Milk(Long id, Integer quantity) {
+        super(id, 2.5, quantity);
+    }
+}

src/main/java/com/zipcodewilmington/productmanager/inventory/products/Product.java

@@ -0,0 +1,52 @@
+package com.zipcodewilmington.productmanager.inventory.products;
+
+/**
+ * Created by leon on 1/10/18.
+ */
+public class Product {
+    private Long id;
+    private Double price;
+    private Integer quantity;
+
+    public Product() {
+    }
+
+    public Product(Long id, Double price, Integer quantity) {
+        this.id = id;
+        this.price = price;
+        this.quantity = quantity;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Double getPrice() {
+        return price;
+    }
+
+    public void setPrice(Double price) {
+        this.price = price;
+    }
+
+    public Integer getQuantity() {
+        return quantity;
+    }
+
+    public void setQuantity(Integer quantity) {
+        this.quantity = quantity;
+    }
+
+    @Override
+    public String toString() {
+        return "Product{" +
+                "id=" + id +
+                ", price=" + price +
+                ", quantity=" + quantity +
+                '}';
+    }
+}

src/main/java/com/zipcodewilmington/productmanager/utils/Console.java

@@ -0,0 +1,44 @@
+package com.zipcodewilmington.productmanager.utils;
+
+import java.io.InputStream;
+import java.io.PrintStream;
+import java.util.Scanner;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class Console {
+    private final Scanner scanner;
+    private final PrintStream printStream;
+
+    public Console() {
+        this(System.in, System.out);
+    }
+
+    public Console(InputStream inputStream, PrintStream printStream) {
+        this.scanner = new Scanner(inputStream);
+        this.printStream = printStream;
+    }
+
+    public void println(String prompt) {
+        printStream.println(prompt);
+    }
+
+    public String getStringInput(String prompt) {
+        println(prompt);
+        String userInput = scanner.nextLine();
+        return userInput;
+    }
+
+    public Double getDoubleInput(String prompt) {
+        return Double.parseDouble(getStringInput(prompt));
+    }
+
+    public Long getLongInput(String prompt) {
+        return getDoubleInput(prompt).longValue();
+    }
+
+    public Integer getIntegerInput(String prompt) {
+        return getLongInput(prompt).intValue();
+    }
+}

src/main/java/com/zipcodewilmington/productmanager/utils/MockConsole.java

@@ -0,0 +1,13 @@
+package com.zipcodewilmington.productmanager.utils;
+
+import java.io.ByteArrayInputStream;
+import java.io.PrintStream;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class MockConsole extends Console {
+    public MockConsole(String input, PrintStream printStream) {
+        super(new ByteArrayInputStream(input.getBytes()), printStream);
+    }
+}

src/test/java/com/zipcodewilmington/productmanager/ConsoleTest.java

@@ -0,0 +1,56 @@
+package com.zipcodewilmington.productmanager;
+
+import com.zipcodewilmington.productmanager.utils.Console;
+import com.zipcodewilmington.productmanager.utils.MockConsole;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class ConsoleTest {
+    @Test
+    public void testGetStringInput() {
+        // given
+        String prompt = "Let's test .getStringInput()";
+        String expected = "This is my user input";
+        Console console = new MockConsole(expected, System.out);
+
+        // when
+        String actual = console.getStringInput(prompt);
+
+        // then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testGetDoubleInput() {
+        // given
+        String prompt = "Let's test .getDoubleInput()";
+        String userInput = "25.986";
+        Double expected = Double.parseDouble(userInput);
+        Console console = new MockConsole(userInput, System.out);
+
+        // when
+        Double actual = console.getDoubleInput(prompt);
+
+        // then
+        Assert.assertEquals(expected, actual);
+    }
+
+
+    @Test
+    public void testGetIntegerInput() {
+        // given
+        String prompt = "Let's test .getIntegerInput()";
+        String userInput = "25";
+        Integer expected = Integer.parseInt(userInput);
+        Console console = new MockConsole(userInput, System.out);
+
+        // when
+        Double actual = console.getDoubleInput(prompt);
+
+        // then
+        Assert.assertEquals(expected, actual);
+    }
+}

src/test/java/com/zipcodewilmington/productmanager/ProductTest.java

@@ -1,7 +1,105 @@
 package com.zipcodewilmington.productmanager;
 
+import com.zipcodewilmington.productmanager.inventory.products.Product;
+import org.junit.Assert;
+import org.junit.Test;
+
 /**
  * Created by leon on 1/10/18.
  */
 public class ProductTest {
+    @Test
+    public void testConstruction() {
+        // given
+        Long expectedId = 0L;
+        Double expectedPrice = 2.5;
+        Integer expectedQuantity = 5;
+
+        // when
+        Product product = new Product(expectedId, expectedPrice, expectedQuantity);
+
+        // then
+        Assert.assertEquals(expectedId, product.getId());
+        Assert.assertEquals(expectedPrice, product.getPrice());
+        Assert.assertEquals(expectedQuantity, product.getQuantity());
+    }
+
+    @Test
+    public void testNullaryConstruction() {
+        // given
+        // when
+        Product product = new Product();
+
+        // Then
+        Assert.assertNull(product.getId());
+        Assert.assertNull(product.getPrice());
+        Assert.assertNull(product.getQuantity());
+    }
+
+    @Test
+    public void testSetId() {
+        // Given
+        Long expected = 0L;
+        Product product = new Product();
+
+        // when
+        product.setId(expected);
+
+        // then
+        Assert.assertEquals(expected, product.getId());
+    }
+
+    @Test
+    public void testSetPrice() {
+        // Given
+        Double expected = 10.5;
+        Product product = new Product();
+
+        // when
+        product.setPrice(expected);
+
+        // then
+        Assert.assertEquals(expected, product.getPrice());
+    }
+
+    @Test
+    public void testSetQuantity() {
+        // given
+        Integer expected = 15;
+        Product product = new Product();
+
+        // when
+        product.setQuantity(expected);
+
+        // then
+        Assert.assertEquals(expected, product.getQuantity());
+    }
+
+    @Test
+    public void testToString1() {
+        // given
+        Long expectedId = 0L;
+        Double expectedPrice = 2.5;
+        Integer expectedQuantity = 5;
+
+        // when
+        Product product = new Product(expectedId, expectedPrice, expectedQuantity);
+
+        // then
+        Assert.assertEquals(product.toString(), "Product{id=0, price=2.5, quantity=5}");
+    }
+
+    @Test
+    public void testToString2() {
+        // given
+        Long expectedId = 0L;
+        Double expectedPrice = 7.5;
+        Integer expectedQuantity = 5;
+
+        // when
+        Product product = new Product(expectedId, expectedPrice, expectedQuantity);
+
+        // then
+        Assert.assertEquals(product.toString(), "Product{id=0, price=7.5, quantity=5}");
+    }
 }

src/test/java/com/zipcodewilmington/productmanager/inventory/AddTest.java

@@ -0,0 +1,24 @@
+package com.zipcodewilmington.productmanager.inventory;
+
+import com.zipcodewilmington.productmanager.inventory.Inventory;
+import com.zipcodewilmington.productmanager.inventory.products.Product;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class AddTest {
+    @Test
+    public void addProductTest(){
+        // given
+        Inventory inventory = new Inventory();
+        Product product = new Product();
+
+        // when
+        inventory.add(product);
+
+        // then
+        Assert.assertTrue(inventory.contains(product));
+    }
+}

src/test/java/com/zipcodewilmington/productmanager/inventory/ConstructorTest.java

@@ -0,0 +1,54 @@
+package com.zipcodewilmington.productmanager.inventory;
+
+import com.zipcodewilmington.productmanager.inventory.Inventory;
+import com.zipcodewilmington.productmanager.inventory.products.Product;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class ConstructorTest {
+    @Test
+    public void testConstructionWithArrayList() {
+        // given
+        List<Product> expected = new ArrayList<Product>();
+        Inventory inventory = new Inventory(expected);
+
+        // when
+        List<Product> actual= inventory.getProductList();
+
+        // then
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testConstructionWithLinkedList() {
+        // given
+        List<Product> expected = new LinkedList<Product>();
+        Inventory inventory = new Inventory(expected);
+
+        // when
+        List<Product> actual= inventory.getProductList();
+
+        // then
+        Assert.assertEquals(expected, actual);
+    }
+
+
+    @Test
+    public void testNullaryConstruction() {
+        // given
+        Inventory inventory = new Inventory();
+
+        // when
+        List<Product> actual= inventory.getProductList();
+
+        // then
+        Assert.assertNotNull(actual);
+    }
+}

src/test/java/com/zipcodewilmington/productmanager/inventory/FindByIdTest.java

@@ -0,0 +1,25 @@
+package com.zipcodewilmington.productmanager.inventory;
+
+import com.zipcodewilmington.productmanager.inventory.Inventory;
+import com.zipcodewilmington.productmanager.inventory.products.Product;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class FindByIdTest {
+    @Test
+    public void findByIdTest() {
+        //given
+        Inventory inventory = new Inventory();
+        Product expected = new Product();
+        inventory.add(expected);
+
+        // when
+        Product acutal = inventory.findById(expected.getId());
+
+        // then
+        Assert.assertEquals(expected, acutal);
+    }
+}

src/test/java/com/zipcodewilmington/productmanager/inventory/GetQuantity.java

@@ -0,0 +1,29 @@
+package com.zipcodewilmington.productmanager.inventory;
+
+import com.zipcodewilmington.productmanager.inventory.Inventory;
+import com.zipcodewilmington.productmanager.inventory.products.Product;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class GetQuantity {
+    @Test
+    public void getTotalQuantity() {
+        // given
+        Inventory inventory = new Inventory();
+        Product product = new Product();
+        product.setQuantity(15);
+        Integer expected = 0;
+        for(Product p : inventory.getProductList()) {
+            expected += p.getQuantity();
+        }
+
+        // when
+        Integer actual = inventory.getTotalQuantity();
+
+        // then
+        Assert.assertEquals(expected, actual);
+    }
+}

src/test/java/com/zipcodewilmington/productmanager/inventory/GetTotalValueTest.java

@@ -0,0 +1,30 @@
+package com.zipcodewilmington.productmanager.inventory;
+
+import com.zipcodewilmington.productmanager.inventory.Inventory;
+import com.zipcodewilmington.productmanager.inventory.products.Product;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class GetTotalValueTest {
+    @Test
+    public void getTotalValue() {
+        // given
+        Inventory inventory = new Inventory();
+        Product product = new Product();
+        product.setPrice(10.0);
+        product.setQuantity(15);
+        Double expected = 0.0;
+        for(Product p : inventory.getProductList()) {
+            expected += p.getPrice() * p.getQuantity();
+        }
+
+        // when
+        Double actual = inventory.getTotalValue();
+
+        // then
+        Assert.assertEquals(expected, actual);
+    }
+}

src/test/java/com/zipcodewilmington/productmanager/inventory/RemoveTest.java

@@ -0,0 +1,25 @@
+package com.zipcodewilmington.productmanager.inventory;
+
+import com.zipcodewilmington.productmanager.inventory.Inventory;
+import com.zipcodewilmington.productmanager.inventory.products.Product;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class RemoveTest {
+    @Test
+    public void removeTest() {
+        // given
+        Inventory inventory = new Inventory();
+        Product product = new Product();
+        inventory.add(product);
+
+        // when
+        inventory.remove(product);
+
+        // then
+        Assert.assertFalse(inventory.contains(product));
+    }
+}

src/test/java/com/zipcodewilmington/productmanager/inventorymanager/AddTest.java

@@ -0,0 +1,30 @@
+package com.zipcodewilmington.productmanager.inventorymanager;
+
+import com.zipcodewilmington.productmanager.inventory.Inventory;
+import com.zipcodewilmington.productmanager.inventory.InventoryManager;
+import com.zipcodewilmington.productmanager.utils.Console;
+import com.zipcodewilmington.productmanager.utils.MockConsole;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class AddTest {
+    @Test
+    public void addTest() {
+        // given
+        Long id = 1L;
+        Double price = 2.5;
+        Integer quantity = 10;
+        String userInput = id + "\n" + price + "\n" + quantity + "\n";
+        Console console = new MockConsole(userInput, System.out);
+        InventoryManager inventoryManager = new InventoryManager(new Inventory(), console);
+
+        // when
+        inventoryManager.add();
+
+        // then
+        Assert.assertNotNull(inventoryManager.getInventory().findById(id));
+    }
+}

src/test/java/com/zipcodewilmington/productmanager/inventorymanager/ConstructorTest.java

@@ -0,0 +1,47 @@
+package com.zipcodewilmington.productmanager.inventorymanager;
+
+import com.zipcodewilmington.productmanager.inventory.Inventory;
+import com.zipcodewilmington.productmanager.inventory.InventoryManager;
+import com.zipcodewilmington.productmanager.utils.Console;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class ConstructorTest {
+    @Test
+    public void constructionWithInventoryTest() {
+        // given
+        Inventory inventory = new Inventory();
+
+        // when
+        InventoryManager inventoryManager = new InventoryManager(inventory, null);
+
+        // then
+        Assert.assertEquals(inventory, inventoryManager.getInventory());
+    }
+
+    @Test
+    public void constructionWithConsoleTest() {
+        // given
+        Console console = new Console();
+
+        // when
+        InventoryManager inventoryManager = new InventoryManager(null, console);
+
+        // then
+        Assert.assertEquals(console, inventoryManager.getConsole());
+    }
+
+    @Test
+    public void nullaryConstructionTest() {
+        // given
+        // when
+        InventoryManager inventoryManager = new InventoryManager();
+
+        // then
+        Assert.assertNotNull(inventoryManager.getInventory());
+        Assert.assertNotNull(inventoryManager.getConsole());
+    }
+}

src/test/java/com/zipcodewilmington/productmanager/inventorymanager/RemoveTest.java

@@ -0,0 +1,30 @@
+package com.zipcodewilmington.productmanager.inventorymanager;
+
+import com.zipcodewilmington.productmanager.inventory.Inventory;
+import com.zipcodewilmington.productmanager.inventory.InventoryManager;
+import com.zipcodewilmington.productmanager.inventory.products.Product;
+import com.zipcodewilmington.productmanager.utils.Console;
+import com.zipcodewilmington.productmanager.utils.MockConsole;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * @author leon on 15/11/2018.
+ */
+public class RemoveTest {
+    @Test
+    public void addTest() {
+        // given
+        Long productId = 0L;
+        Inventory inventory = new Inventory();
+        inventory.add(new Product(productId, null, null));
+        Console console = new MockConsole(productId.toString(), System.out);
+        InventoryManager inventoryManager = new InventoryManager(new Inventory(), console);
+
+        // when
+        inventoryManager.remove();
+
+        // then
+        Assert.assertNull(inventoryManager.getInventory().findById(productId));
+    }
+}