Added test for GUI (Reduce Indent)

app/test/processing/app/ReduceIndentWith1CharOnLastLineTest.java

@@ -0,0 +1,28 @@
+package processing.app;
+
+import static org.junit.Assert.assertEquals;
+
+import org.fest.swing.fixture.JMenuItemFixture;
+import org.junit.Test;
+
+import processing.app.helpers.JEditTextAreaFixture;
+
+public class ReduceIndentWith1CharOnLastLineTest extends AbstractGUITest {
+
+  @Test
+  public void shouldJustCloseTheDialog() throws Exception {
+    JMenuItemFixture menuDecreaseIndent = window.menuItem("menuDecreaseIndent");
+
+    JEditTextAreaFixture editor = window.jEditTextArea("editor");
+    editor.setText("void loop()\n{\n  Serial.begin(9600)\n}");
+
+    editor.selectAll();
+
+    menuDecreaseIndent.requireEnabled();
+    menuDecreaseIndent.click();
+
+    EditorConsole console = (EditorConsole) window.scrollPane("console").component();
+
+    assertEquals("", console.consoleDoc.getText(0, console.consoleDoc.getLength()));
+  }
+}