implement ui test

build.gradle

@@ -39,6 +39,8 @@ dependencies {
     provided 'org.slf4j:slf4j-log4j12:1.7.21'
 
     testCompile 'junit:junit:4.11'
+    testCompile 'org.testfx:testfx-junit:4.0.5-alpha'
+    testCompile 'org.mockito:mockito-all:1.9.5'
 }
 compileJava {
     //add required JavaFX libs to compile classpath

src/test/java/jp/toastkid/script/ControllerTest.java

@@ -0,0 +1,61 @@
+package jp.toastkid.script;
+
+import static org.junit.Assert.assertEquals;
+
+import java.io.IOException;
+
+import org.fxmisc.richtext.CodeArea;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.testfx.framework.junit.ApplicationTest;
+
+import javafx.application.Platform;
+import javafx.event.ActionEvent;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Scene;
+import javafx.scene.layout.VBox;
+import javafx.stage.Stage;
+
+/**
+ * {@link Controller}'s test.
+ *
+ * @author Toast kid
+ *
+ */
+public class ControllerTest extends ApplicationTest {
+
+    /** Logger. */
+    private static final Logger LOGGER = LoggerFactory.getLogger(ControllerTest.class);
+
+    /**
+     * UI test.
+     * @throws InterruptedException
+     */
+    @Test
+    public void test() throws InterruptedException {
+        final CodeArea input = (CodeArea) lookup("#scripterInput").query();
+        final String text = "println 'Hello world.'";
+        Platform.runLater(() -> {
+            input.replaceText(text);
+            assertEquals(text, input.getText());
+            lookup("#runButton").query().fireEvent(new ActionEvent());
+            assertEquals("Hello world.", ((CodeArea) lookup("#scripterOutput").query()).getText().trim());
+        });
+    }
+
+    @Override
+    public void start(final Stage stage) throws Exception {
+        try {
+            final FXMLLoader loader
+                = new FXMLLoader(getClass().getClassLoader().getResource("scenes/Main.fxml"));
+            final VBox loaded = (VBox) loader.load();
+            final Scene scene = new Scene(loaded);
+            stage.setScene(scene);
+        } catch (final IOException e) {
+            LOGGER.error("Scene Reading Error", e);
+        }
+        stage.show();
+    }
+
+}