Index: lldb/packages/Python/lldbsuite/test/functionalities/gui_command/Makefile
===================================================================
--- /dev/null
+++ lldb/packages/Python/lldbsuite/test/functionalities/gui_command/Makefile
@@ -0,0 +1,3 @@
+LEVEL = ../../make
+C_SOURCES := main.c
+include $(LEVEL)/Makefile.rules
Index: lldb/packages/Python/lldbsuite/test/functionalities/gui_command/TestGuiBasic.py
===================================================================
--- /dev/null
+++ lldb/packages/Python/lldbsuite/test/functionalities/gui_command/TestGuiBasic.py
@@ -0,0 +1,58 @@
+"""
+Test that the 'gui' displays the help window and basic UI.
+"""
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.lldbpexpect import PExpectTest
+
+class BasicGuiCommandTest(PExpectTest):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def test_gui(self):
+        self.build()
+
+        self.launch(executable=self.getBuildArtifact("a.out"))
+        self.expect("b main.c:4", substrs=["Breakpoint 1", "address ="])
+        self.expect("run", substrs=["stop reason ="])
+
+
+        escape_key = chr(27).encode()
+
+        # Start the GUI for the first time and check for the welcome window.
+        self.child.sendline("gui")
+        self.child.expect_exact("Welcome to the LLDB curses GUI.")
+
+        # Press escape to quit the welcome screen
+        self.child.send(escape_key)
+        # Press escape again to quit the gui
+        self.child.send(escape_key)
+        self.expect_prompt()
+
+        # Start the GUI a second time, this time we should have the normal GUI.
+        self.child.sendline("gui")
+        # Check for GUI elements in the menu bar.
+        self.child.expect_exact("Target")
+        self.child.expect_exact("Process")
+        self.child.expect_exact("Thread")
+        self.child.expect_exact("View")
+        self.child.expect_exact("Help")
+
+        # Check the sources window.
+        self.child.expect_exact("Sources")
+        self.child.expect_exact("main")
+        self.child.expect_exact("funky_var_name_that_should_be_rendered")
+
+        # Check the variable window.
+        self.child.expect_exact("Variables")
+        self.child.expect_exact("(int) funky_var_name_that_should_be_rendered = 22")
+
+        # Check the bar at the bottom.
+        self.child.expect_exact("Frame:")
+
+        # Press escape to quit the gui
+        self.child.send(escape_key)
+
+        self.quit()
Index: lldb/packages/Python/lldbsuite/test/functionalities/gui_command/main.c
===================================================================
--- /dev/null
+++ lldb/packages/Python/lldbsuite/test/functionalities/gui_command/main.c
@@ -0,0 +1,5 @@
+int main(int argc, char **argv) {
+  lldb_enable_attach();
+  int funky_var_name_that_should_be_rendered = 22;
+  return 0;
+}