test: added first test

Signed-off-by: Rajdeep Roy Chowdhury <rrajdeeproychowdhury@gmail.com>

Author: Razdeep

build.gradle

@@ -27,13 +27,22 @@ dependencies {
 
     testCompileOnly 'org.projectlombok:lombok:1.18.20'
     testAnnotationProcessor 'org.projectlombok:lombok:1.18.20'
+
+    testImplementation 'org.testfx:testfx-junit5:4.0.18'
+    testImplementation 'org.testfx:openjfx-monocle:jdk-12.0.1+2'
+    testImplementation 'org.junit.jupiter:junit-jupiter:5.10.0'
+    testImplementation 'org.hamcrest:hamcrest:2.2'
 }
 
 javafx {
     version = "17"
     modules = [ 'javafx.controls', 'javafx.fxml', 'javafx.graphics', 'javafx.base' ]
 }
 
+test {
+    useJUnitPlatform()
+}
+
 spotless {
     java {
         lineEndings 'WINDOWS'

src/main/resources/satyamconsignment/ui/Input/BillEntry/BillEntry.fxml

@@ -13,7 +13,7 @@
                 <TabPane layoutX="41.0" layoutY="87.0" prefHeight="633.0" prefWidth="717.0"
                          tabClosingPolicy="UNAVAILABLE" style="-fx-tab-min-width: 120px; -fx-tab-max-width: 120px;">
                     <tabs>
-                        <Tab text="Add" closable="false">
+                        <Tab fx:id="TabButtonAdd" text="Add" closable="false">
                             <content>
                                 <fx:include fx:id="AddBill" source="AddBill/AddBill.fxml"/>
                             </content>

src/test/java/functional/BillEntryTest.java

@@ -0,0 +1,52 @@
+package functional;
+
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+import org.junit.jupiter.api.Test;
+import org.testfx.framework.junit5.ApplicationTest;
+import org.testfx.matcher.base.NodeMatchers;
+
+import static org.testfx.api.FxAssert.verifyThat;
+
+public class BillEntryTest extends ApplicationTest {
+
+    @Override
+    public void start(Stage stage) throws Exception {
+        FXMLLoader loader = new FXMLLoader(
+                getClass().getResource("/satyamconsignment/ui/Main/Main.fxml")
+        );
+
+        Parent root = loader.load();
+        stage.setScene(new Scene(root));
+        stage.setMaximized(true);
+        stage.show();
+    }
+
+    @Test
+    void testIfLoadedProperly() {
+        clickOn("#input_btn");
+
+        verifyThat("#bill_entry_btn", NodeMatchers.isVisible());
+        clickOn("#bill_entry_btn");
+
+        verifyThat("#TabButtonAdd", NodeMatchers.isVisible());
+        clickOn("#TabButtonAdd");
+
+        verifyThat("#supplier_field", NodeMatchers.isVisible());
+//        clickOn("#supplier_field");
+
+        interact(() -> {
+            lookup("#supplier_field").queryTextInputControl().setText("ajanta");
+        });
+
+
+        verifyThat("#buyer_name_field", NodeMatchers.isVisible());
+        clickOn("#buyer_name_field");
+
+        write("hello");
+    }
+
+
+}