IEP-1649 Add SWT Tests to Verify ESP-IDF Terminal in the IDE (#1337)

* feat: added a test to verify esp-idf terminal in the IDE

* fix: on the remote IDE there is a different lable for terminal

* fix: cover all possible tooltips

* fix: remove static bot field

* fix: return static field since it's needed for beforeClass

* fix: closing terminal view after tests

Author: sigmaaa

tests/com.espressif.idf.ui.test/src/com/espressif/idf/ui/test/TerminalViewTest.java

@@ -0,0 +1,137 @@
+package com.espressif.idf.ui.test;
+
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swtbot.eclipse.finder.SWTWorkbenchBot;
+import org.eclipse.swtbot.eclipse.finder.widgets.SWTBotView;
+import org.eclipse.swtbot.swt.finder.exceptions.WidgetNotFoundException;
+import org.eclipse.swtbot.swt.finder.junit.SWTBotJunit4ClassRunner;
+import org.eclipse.swtbot.swt.finder.widgets.SWTBotCanvas;
+import org.eclipse.swtbot.swt.finder.widgets.SWTBotToolbarButton;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import com.espressif.idf.ui.test.operations.EnvSetupOperations;
+
+@RunWith(SWTBotJunit4ClassRunner.class)
+public class TerminalViewTest
+{
+
+	private static SWTWorkbenchBot bot;
+
+	@BeforeClass
+	public static void setup() throws Exception
+	{
+
+		bot = new SWTWorkbenchBot();
+		EnvSetupOperations.setupEspressifEnv(bot);
+	}
+
+	@AfterClass
+	public static void cleanup() throws Exception
+	{
+		try
+		{
+			SWTBotView terminalView = bot.viewByTitle("Terminal");
+			terminalView.close();
+		}
+		catch (WidgetNotFoundException ignored)
+		{
+		}
+
+	}
+
+	@Test
+	public void testOpenTerminalView() throws Exception
+	{
+		// Create a temporary file for capturing terminal output
+		Path tempFile = Files.createTempFile("idf_version_output", ".txt");
+		File outputFile = tempFile.toFile();
+		outputFile.deleteOnExit(); // ensure cleanup after JVM exits
+
+		String[] tooltips = { "Open a Terminal (Ctrl+Alt+Shift+T)", "Open a Terminal (Shift+Ctrl+Alt+T)",
+				"Open a Terminal" };
+
+		SWTBotToolbarButton openTerminalButton = null;
+
+		for (String tooltip : tooltips)
+		{
+			try
+			{
+				openTerminalButton = bot.toolbarButtonWithTooltip(tooltip);
+				break; // stop at the first one found
+			}
+			catch (WidgetNotFoundException ignored)
+			{
+				// try next tooltip
+			}
+		}
+
+		if (openTerminalButton == null)
+		{
+			throw new WidgetNotFoundException("Toolbar button 'Open a Terminal' not found with any known tooltip");
+		}
+
+		openTerminalButton.click();
+		bot.comboBox().setSelection("ESP-IDF Terminal");
+		bot.button("OK").click();
+		SWTBotView terminalView = bot.viewByTitle("Terminal");
+		terminalView.show();
+		terminalView.setFocus();
+
+		// Wait for terminal to initialize
+		bot.sleep(3000);
+
+		// Type command into the Canvas terminal
+		SWTBotCanvas canvas = terminalView.bot().canvas();
+		canvas.setFocus();
+
+		// Command with temporary file
+		String cmd = "idf.py --version > " + outputFile.getAbsolutePath();
+		canvas.display.syncExec(() -> {
+			for (char c : cmd.toCharArray())
+			{
+				Event e = new Event();
+				e.type = SWT.KeyDown;
+				e.character = c;
+				canvas.widget.notifyListeners(SWT.KeyDown, e);
+
+				Event e2 = new Event();
+				e2.type = SWT.KeyUp;
+				e2.character = c;
+				canvas.widget.notifyListeners(SWT.KeyUp, e2);
+			}
+
+			// Press Enter
+			Event enterDown = new Event();
+			enterDown.type = SWT.KeyDown;
+			enterDown.character = '\r';
+			canvas.widget.notifyListeners(SWT.KeyDown, enterDown);
+
+			Event enterUp = new Event();
+			enterUp.type = SWT.KeyUp;
+			enterUp.character = '\r';
+			canvas.widget.notifyListeners(SWT.KeyUp, enterUp);
+		});
+
+		// Wait for the command to execute
+		bot.sleep(5000);
+
+		// Read the output from the temporary file
+		String output = new String(Files.readAllBytes(tempFile), StandardCharsets.UTF_8);
+
+		assertTrue("Output should contain 'IDF v'", output.contains("IDF v"));
+		// Optional: delete the temp file explicitly after test
+		Files.deleteIfExists(tempFile);
+	}
+
+}