[uboot] create uboot from github:

repo: https://github.com/u-boot/u-boot
	commit: d80bb749fab53da72c4a0e09b8c2d2aaa3103c91

Change-Id: Ie6434426e1ec15bc08bb1832798e371f3fd5fb29

u-boot-2021.10/test/py/tests/test_shell_basics.py

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
+
+# Test basic shell functionality, such as commands separate by semi-colons.
+
+import pytest
+
+pytestmark = pytest.mark.buildconfigspec('cmd_echo')
+
+def test_shell_execute(u_boot_console):
+    """Test any shell command."""
+
+    response = u_boot_console.run_command('echo hello')
+    assert response.strip() == 'hello'
+
+def test_shell_semicolon_two(u_boot_console):
+    """Test two shell commands separate by a semi-colon."""
+
+    cmd = 'echo hello; echo world'
+    response = u_boot_console.run_command(cmd)
+    # This validation method ignores the exact whitespace between the strings
+    assert response.index('hello') < response.index('world')
+
+def test_shell_semicolon_three(u_boot_console):
+    """Test three shell commands separate by a semi-colon, with variable
+    expansion dependencies between them."""
+
+    cmd = 'setenv list 1; setenv list ${list}2; setenv list ${list}3; ' + \
+        'echo ${list}'
+    response = u_boot_console.run_command(cmd)
+    assert response.strip() == '123'
+    u_boot_console.run_command('setenv list')
+
+def test_shell_run(u_boot_console):
+    """Test the "run" shell command."""
+
+    u_boot_console.run_command('setenv foo \'setenv monty 1; setenv python 2\'')
+    u_boot_console.run_command('run foo')
+    response = u_boot_console.run_command('echo ${monty}')
+    assert response.strip() == '1'
+    response = u_boot_console.run_command('echo ${python}')
+    assert response.strip() == '2'
+    u_boot_console.run_command('setenv foo')
+    u_boot_console.run_command('setenv monty')
+    u_boot_console.run_command('setenv python')