test/py: mmc: Add 'mmc info' test

Add test for 'mmc info' subcommand. This tests whether the card
information is obtained correctly and verifies the device, bus
speed, bus mode and bus width.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: NSimon Glass <sjg@chromium.org>

test/py/tests/test_mmc_rd.py

@@ -130,6 +130,43 @@ def test_mmc_rescan(u_boot_console, env__mmc_rd_config):
     response = u_boot_console.run_command(cmd)
     assert 'no card present' not in response
 
+@pytest.mark.buildconfigspec('cmd_mmc')
+def test_mmc_info(u_boot_console, env__mmc_rd_config):
+    """Test the "mmc info" command.
+
+    Args:
+        u_boot_console: A U-Boot console connection.
+        env__mmc_rd_config: The single MMC configuration on which
+            to run the test. See the file-level comment above for details
+            of the format.
+
+    Returns:
+        Nothing.
+    """
+
+    is_emmc = env__mmc_rd_config['is_emmc']
+    devid = env__mmc_rd_config['devid']
+    partid = env__mmc_rd_config.get('partid', 0)
+    info_device = env__mmc_rd_config['info_device']
+    info_speed = env__mmc_rd_config['info_speed']
+    info_mode = env__mmc_rd_config['info_mode']
+    info_buswidth = env__mmc_rd_config['info_buswidth']
+
+    # Select MMC device
+    mmc_dev(u_boot_console, is_emmc, devid, partid)
+
+    # Read MMC device information
+    cmd = 'mmc info'
+    response = u_boot_console.run_command(cmd)
+    good_response = "Device: %s" % info_device
+    assert good_response in response
+    good_response = "Bus Speed: %s" % info_speed
+    assert good_response in response
+    good_response = "Mode : %s" % info_mode
+    assert good_response in response
+    good_response = "Bus Width: %s" % info_buswidth
+    assert good_response in response
+
 @pytest.mark.buildconfigspec('cmd_mmc')
 def test_mmc_rd(u_boot_console, env__mmc_rd_config):
     """Test the "mmc read" command.