[ADD] Better project structure and junit tests

.classpath

 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="src" output="bin/main" path="src">
+	<classpathentry kind="src" output="bin/main" path="src/main/java">
 		<attributes>
 			<attribute name="gradle_scope" value="main"/>
 			<attribute name="gradle_used_by_scope" value="main,test"/>
 		</attributes>
 	</classpathentry>
+	<classpathentry kind="src" output="bin/main" path="src/main/resources">
+		<attributes>
+			<attribute name="gradle_scope" value="main"/>
+			<attribute name="gradle_used_by_scope" value="main,test"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" output="bin/test" path="src/test/java">
+		<attributes>
+			<attribute name="gradle_scope" value="test"/>
+			<attribute name="gradle_used_by_scope" value="test"/>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" output="bin/test" path="src/test/resources">
+		<attributes>
+			<attribute name="gradle_scope" value="test"/>
+			<attribute name="gradle_used_by_scope" value="test"/>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11/"/>
 	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
 	<classpathentry kind="output" path="bin/default"/>

.settings/org.eclipse.buildship.core.prefs

@@ -5,7 +5,7 @@ connection.gradle.distribution=GRADLE_DISTRIBUTION(WRAPPER)
 connection.project.dir=
 eclipse.preferences.version=1
 gradle.user.home=
-java.home=/usr/lib/jvm/default
+java.home=/usr/lib/jvm/java-11-openjdk
 jvm.arguments=
 offline.mode=false
 override.workspace.settings=true

build.gradle

@@ -8,14 +8,27 @@ plugins {
     id 'java'
     id 'application'
     id "org.openjfx.javafxplugin" version "0.0.10"
+    id 'com.adarshr.test-logger' version '3.0.0'
 }
 
 repositories {
     mavenCentral()
 }
 
+dependencies {
+    testImplementation("org.junit.jupiter:junit-jupiter-api:5.8.1")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.8.1")
+}
+
+test {
+    useJUnitPlatform()
+    testLogging {
+		events "passed", "skipped", "failed", "standardOut", "standardError"
+	}
+}
+
 apply plugin: 'java'
-mainClassName = 'Main'
+mainClassName = 'example.Main'
 
 jar {
     manifest {
@@ -23,19 +36,9 @@ jar {
     }
 }
 
-sourceSets {
-    main {
-        java {
-            srcDirs = ['src']
-        }
-        resources {
-            srcDirs = ['resources']
-        }
-    }
-}
-
 javafx {
-    modules = ['javafx.controls', 'javafx.base', 'javafx.graphics', 'javafx.web', 'javafx.swing', 'javafx.media']
+    version = 17;
+    modules = ['javafx.controls', 'javafx.base', 'javafx.graphics', 'javafx.web', 'javafx.swing', 'javafx.media', 'javafx.fxml']
 }
 
 task buildJar(type: Jar) {
@@ -46,4 +49,22 @@ task buildJar(type: Jar) {
         configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
     }
     with jar
+}
+
+testlogger {
+    theme 'mocha'
+    showExceptions true
+    showStackTraces true
+    showFullStackTraces false
+    showCauses true
+    slowThreshold 5000
+    showSummary true
+    showSimpleNames false
+    showPassed true
+    showSkipped true
+    showFailed true
+    showStandardStreams false
+    showPassedStandardStreams true
+    showSkippedStandardStreams true
+    showFailedStandardStreams true
 }
\ No newline at end of file

src/Main.java → src/main/java/example/Main.java

+package example;
 import javafx.application.Application;
 import javafx.stage.Stage;
 import javafx.scene.Scene;
@@ -20,4 +21,4 @@ public class Main extends Application {
         primaryStage.setScene(primaryScene);
         primaryStage.show();
     }
-}
\ No newline at end of file
+}

src/test/java/example/MainTest.java

+package example;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class MainTest {
+
+    @Test
+    public void sampleTest() {
+        assertEquals(true, true);
+    }
+}