test/py: test pinmux command

Add pinmux test which test the following commands:
  - pinmux list
  - pinmux dev
  - pinmux status

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Mark some tests as sandbox-centric]
Signed-off-by: Tom Rini <trini@konsulko.com>

Signed-off-by: Tom Rini <trini@konsulko.com>

arch/sandbox/dts/test.dts

@@ -727,6 +727,10 @@
 	sandbox_virtio2 {
 		compatible = "sandbox,virtio2";
 	};
+
+	pinctrl {
+		compatible = "sandbox,pinctrl";
+	};
 };
 
 #include "sandbox_pmic.dtsi"

test/py/tests/test_pinmux.py

+# SPDX-License-Identifier: GPL-2.0
+
+import pytest
+import u_boot_utils
+
+@pytest.mark.buildconfigspec('cmd_pinmux')
+def test_pinmux_usage_1(u_boot_console):
+    """Test that 'pinmux' command without parameters displays
+    pinmux usage."""
+    output = u_boot_console.run_command('pinmux')
+    assert 'Usage:' in output
+
+@pytest.mark.buildconfigspec('cmd_pinmux')
+def test_pinmux_usage_2(u_boot_console):
+    """Test that 'pinmux status' executed without previous "pinmux dev"
+    command displays pinmux usage."""
+    output = u_boot_console.run_command('pinmux status')
+    assert 'Usage:' in output
+
+@pytest.mark.buildconfigspec('cmd_pinmux')
+@pytest.mark.boardspec('sandbox')
+def test_pinmux_status_all(u_boot_console):
+    """Test that 'pinmux status -a' displays pin's muxing."""
+    output = u_boot_console.run_command('pinmux status -a')
+    assert ('SCL       : I2C SCL' in output)
+    assert ('SDA       : I2C SDA' in output)
+    assert ('TX        : Uart TX' in output)
+    assert ('RX        : Uart RX' in output)
+    assert ('W1        : 1-wire gpio' in output)
+
+@pytest.mark.buildconfigspec('cmd_pinmux')
+@pytest.mark.boardspec('sandbox')
+def test_pinmux_list(u_boot_console):
+    """Test that 'pinmux list' returns the pin-controller list."""
+    output = u_boot_console.run_command('pinmux list')
+    assert 'sandbox_pinctrl' in output
+
+@pytest.mark.buildconfigspec('cmd_pinmux')
+def test_pinmux_dev_bad(u_boot_console):
+    """Test that 'pinmux dev' returns an error when trying to select a
+    wrong pin controller."""
+    pincontroller = 'bad_pin_controller_name'
+    output = u_boot_console.run_command('pinmux dev ' + pincontroller)
+    expected_output = 'Can\'t get the pin-controller: ' + pincontroller + '!'
+    assert (expected_output in output)
+
+@pytest.mark.buildconfigspec('cmd_pinmux')
+@pytest.mark.boardspec('sandbox')
+def test_pinmux_dev(u_boot_console):
+    """Test that 'pinmux dev' select the wanted pin controller."""
+    pincontroller = 'pinctrl'
+    output = u_boot_console.run_command('pinmux dev ' + pincontroller)
+    expected_output = 'dev: ' + pincontroller
+    assert (expected_output in output)
+
+@pytest.mark.buildconfigspec('cmd_pinmux')
+@pytest.mark.boardspec('sandbox')
+def test_pinmux_status(u_boot_console):
+    """Test that 'pinmux status' displays selected pincontroller's pin
+    muxing descriptions."""
+    output = u_boot_console.run_command('pinmux status')
+    assert ('SCL       : I2C SCL' in output)
+    assert ('SDA       : I2C SDA' in output)
+    assert ('TX        : Uart TX' in output)
+    assert ('RX        : Uart RX' in output)
+    assert ('W1        : 1-wire gpio' in output)