Print export Unit tests are written

client/src/main/java/client/utils/PrintExportService.java

@@ -19,7 +19,7 @@ public class PrintExportService {
         for(int i =0; i<recipe.getIngredients().size();i++){ // For loop adding ingredients one by one
             result +=  recipe.getIngredients().get(i) + ", ";
         }
-        result += "Steps:\n";
+        result += "\nSteps:\n";
         for(int i =0; i<recipe.getPreparationSteps().size();i++){ // Preparation Steps separated by new lines
             result += (i+1) + ": " + recipe.getPreparationSteps().get(i) + "\n";
         }

client/src/test/java/client/scenes/PrintExportTest.java

@@ -0,0 +1,69 @@
+package client.scenes;
+
+import client.utils.PrintExportService;
+import client.utils.ServerUtils;
+import commons.Recipe;
+import org.junit.jupiter.api.Assumptions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class PrintExportTest {
+    static ServerUtils dv = new ServerUtils();
+    @BeforeEach
+    public void setup(){
+        Assumptions.assumeTrue(dv.isServerAvailable(), "Server not available");
+    }
+
+    @Test
+    public void buildRecipeTextTest(){
+        List<String> ingredients = new ArrayList<>();
+        ingredients.add("Banana");
+        ingredients.add("Bread");
+        List<String> preparationSteps = new ArrayList<>();
+        preparationSteps.add("Mix Ingredients");
+        preparationSteps.add("Heat in Oven");
+        Recipe recipe1 = new Recipe(1234L, "Banana Bread", ingredients, preparationSteps);
+
+        assertEquals("""
+                Title: Banana Bread
+                Recipe ID: 1234
+                Ingredients: Banana, Bread,\s
+                Steps:
+                1: Mix Ingredients
+                2: Heat in Oven
+                """, PrintExportService.buildRecipeText(recipe1));
+
+    }
+
+    @TempDir
+    Path tempDir;
+    @Test
+    public void validateFolderWithValidFolderTest(){
+        assertDoesNotThrow(() -> PrintExportService.validateFolder(tempDir));
+    }
+
+    @Test
+    public void validateFolderWithNullPathTest(){
+        IllegalArgumentException i = assertThrows(IllegalArgumentException.class,
+                ()->PrintExportService.validateFolder(null));
+        assertEquals("Path is empty", i.getMessage());
+    }
+
+    @Test
+    public void validateFolderWithFilePathTest() throws IOException {
+        Path filePath = Files.createFile(tempDir.resolve("TestFile"));
+        IllegalArgumentException i = assertThrows(IllegalArgumentException.class,
+                ()->PrintExportService.validateFolder(filePath));
+        assertEquals("Given path is not a folder", i.getMessage());
+    }
+
+}