Fix Junit unit testing

build.gradle

@@ -9,6 +9,9 @@ repositories {
     mavenCentral()
 }
 
+mainClassName = 'lemona.Launcher'
+
+
 dependencies {
     testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-api', version: '5.10.0'
     testRuntimeOnly group: 'org.junit.jupiter', name: 'junit-jupiter-engine', version: '5.10.0'
@@ -48,7 +51,7 @@ application {
 }
 
 shadowJar {
-    archiveBaseName = "duke"
+    archiveBaseName = "Lemona"
     archiveClassifier = null
     dependsOn("distZip", "distTar")
 }

src/main/java/lemona/exceptions/DuplicateInstructionException.java

@@ -29,6 +29,7 @@ public String toString(String string) {
             break;
         }
         str = str + "\nI suggest you take some LEMONA";
+        System.out.println(str);
         return str;
     }
 }

src/main/java/lemona/oop/Parser.java

@@ -49,15 +49,18 @@ public static String[] trim(String input) {
     public static String[] parseDates(String[] trimmedInput) throws MissingDescriptionException {
         switch (trimmedInput[0]) {
         case ("deadline") :
-            if (trimmedInput.length == 1 || trimmedInput[1].split("/by ").length == 1) {
+            if (trimmedInput.length == 1 || trimmedInput[1].split("/by ").length == 1
+                    || trimmedInput[1].split("/by ")[0].equals("")) {
+                System.out.println();
                 throw new MissingDescriptionException();
             }
 
             String[] content = trimmedInput[1].split("/by ");
             String[] deadlineInput = {trimmedInput[0], content[0], content[1]};
             return deadlineInput;
         case ("event") :
-            if (trimmedInput.length == 1 || trimmedInput[1].split("/from ").length == 1) {
+            if (trimmedInput.length == 1 || trimmedInput[1].split("/from ").length == 1
+                    || trimmedInput[1].split("/from ")[0].equals("")) {
                 throw new MissingDescriptionException();
             }
 

src/main/java/lemona/oop/Ui.java

@@ -29,9 +29,11 @@ public String showLoadingError() {
      * @return the string message to be printed.
      */
     public String showDateTimeParsingError() {
-        return "I think you haven't had enough vitamin C."
+        String str =  "I think you haven't had enough vitamin C."
                 + "\nYour time format should be :"
                 + "\n\t{ dd/MM/yyyy HHmm }"
                 + "\nI suggest you take some LEMONA.";
+        System.out.println(str);
+        return str;
     }
 }

src/test/java/ParserTest.java

@@ -1,40 +1,37 @@
 package oop;
 
-import lemona.oop.Storage;
+import lemona.exceptions.MissingDescriptionException;
+import lemona.oop.Parser;
 import org.junit.jupiter.api.Test;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.fail;
 
-import lemona.task.Task;
-
-import java.io.ByteArrayOutputStream;
-import java.io.PrintStream;
-import java.util.ArrayList;
-public class StorageTest {
+public class ParserTest {
 
     @Test
-    public void stringToList_givenString_success(){
-        ArrayList<Task> tasks = new ArrayList<>();
-        String input = "[T] / [ ] / vitamin c";
-        Storage storage = new Storage("data/lemona.txt");
-        tasks = storage.stringToList(tasks, input);
-        assertEquals("[T][ ] vitamin c", tasks.get(0).print());
+    public void parseDates_givenString_success() {
+        try {
+            String input = "deadline take lemona /by 01/11/2022 2359";
+            String[] output = Parser.parseDates(Parser.trim(input));
+            String[] expectedOutput = {"deadline", "take lemona ","01/11/2022 2359"};
+            assertEquals(expectedOutput[0], output[0]);
+            assertEquals(expectedOutput[1], output[1]);
+            assertEquals(expectedOutput[2], output[2]);
+        } catch (MissingDescriptionException e) {
+        }
     }
 
-    @Test void stringToList_dateTimeParse_exceptionThrown() {
-        ArrayList<Task> tasks = new ArrayList<>();
-        String input = "[D] / [ ] / vitamin c / 1/1/1";
-        ByteArrayOutputStream outContent = new ByteArrayOutputStream();
-        System.setOut(new PrintStream(outContent));
-        Storage storage = new Storage("data/lemona.txt");
-        tasks = storage.stringToList(tasks, input);
-        System.setOut(System.out);
-        String actualOutput = outContent.toString().trim();
-        String output = "I think you haven't had enough vitamin C."
-                + "\nYour time format should be :"
-                + "\n\t{ dd/MM/yyyy HHmm }"
-                + "\nI suggest you take some LEMONA.";
-
-        assertEquals(output.trim(), actualOutput.replace("\r\n", "\n"));
+    @Test
+    void parseDates_missingDescription_exceptionThrown() {
+        String input = "deadline /by 01/11/2022 2359";
+        try {
+            Parser.parseDates(Parser.trim(input));
+        } catch (MissingDescriptionException e) {
+            String expectedOutput = "I think you haven't had enough vitamin K." +
+                    "\nYour input should be in format of:"
+                    + "\n\t{ deadline (Task) (/by DueDate) }"
+                    + "\nI suggest you take some LEMONA.";
+            assertEquals(expectedOutput, e.toString(Parser.trim(input)[0]));
+        }
     }
 }

src/test/java/TaskListTest.java

@@ -42,11 +42,9 @@ public void add_duplicateTasks_exceptionThrown() {
 
         System.setOut(System.out);
         String actualOutput = outContent.toString().trim();
-        String output = "\t______________________________________________________"
-                + "\n\t I think you haven't had enough vitamin D."
-                + "\n\t Your task is already existing in the list!"
-                + "\n\t I suggest you take some LEMONA"
-                + "\n\t______________________________________________________";
+        String output = "I think you haven't had enough vitamin D."
+                + "\nYour task is already existing in the list!"
+                + "\nI suggest you take some LEMONA";
 
         assertEquals(output.trim(), actualOutput.replace("\r\n", "\n"));
     }