[#90443] Add USB sysfs test

Author: dolszewski-antmicro

protoplaster/conf/parser.py

@@ -24,6 +24,7 @@
 from protoplaster.tests.pmic.UCD90320U.test import __file__ as UCD90320U_test
 from protoplaster.tests.thermometer.TMP431.test import __file__ as TMP431_test
 from protoplaster.tests.i2c_mux.TCA9548A.test import __file__ as TCA9548A_test
+from protoplaster.tests.usb.test import __file__ as usb_test
 from protoplaster.tests.simple.test import __file__ as simple_test
 from protoplaster.tests.http_echo.test import __file__ as http_echo_test
 from protoplaster.tools.tools import pr_err, pr_info, pr_warn
@@ -51,6 +52,7 @@
     "simple": simple_test,
     "ti_dac38j8x_eyescan": ti_dac38j8x_eyescan_test,
     "http_echo": http_echo_test,
+    "usb": usb_test,
 }
 
 

protoplaster/tests/usb/__init__.py

@@ -0,0 +1,22 @@
+from protoplaster.conf.module import ModuleName
+import os
+
+
+@ModuleName("usb")
+class TestUsb:
+
+    def setup_class(self):
+        assert hasattr(self, "device"), "'device' is an obligatory argument"
+        self.sysfs_path = f"/sys/bus/usb/devices/{self.device}"
+
+    def test_sysfs_interface(self):
+        """
+        {% macro test_sysfs_interface(device) -%}
+          check if the sysfs interface exists: `{{ device['sysfs_path'] }}`
+        {%- endmacro %}
+        """
+        assert os.path.exists(
+            self.sysfs_path), f"USB interface {self.sysfs_path} doesn't exist"
+
+    def name(self):
+        return f"usb({self.device})"