support/testing/tests/package/test_libusb_compat: new runtime test

Signed-off-by: Zoltan Gyarmati <mr.zoltan.gyarmati@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -3629,4 +3629,6 @@ F:	package/quazip/
 F:	package/shapelib/
 F:	package/simple-mail/
 F:	package/tinc/
+F:	support/testing/tests/package/test_libusb_compat.py
+F:	support/testing/tests/package/test_libusb_compat/
 F:	support/testing/tests/package/test_quazip.py

support/testing/tests/package/test_libusb_compat.py

@@ -0,0 +1,58 @@
+import os
+
+import infra.basetest
+
+
+class TestLibusbCompat(infra.basetest.BRTest):
+    # enable USB 2.0 support so we can test the USB enumeration in qemu
+    linux_fragment = \
+        infra.filepath("tests/package/test_libusb_compat/linux-usb.fragment")
+    config = \
+        f"""
+        BR2_aarch64=y
+        BR2_TOOLCHAIN_EXTERNAL=y
+        BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
+        BR2_LINUX_KERNEL=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.73"
+        BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+        BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
+        BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{linux_fragment}"
+        BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+        BR2_PACKAGE_LIBUSB=y
+        BR2_PACKAGE_LIBUSB_COMPAT=y
+        BR2_PACKAGE_LIBUSB_COMPAT_EXAMPLES=y
+        BR2_TARGET_ROOTFS_CPIO=y
+        BR2_TARGET_ROOTFS_CPIO_GZIP=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        """
+
+    examples_dir = "/usr/libexec/libusb-compat/examples"
+
+    def test_run(self):
+        img = os.path.join(self.builddir, "images", "rootfs.cpio.gz")
+        kern = os.path.join(self.builddir, "images", "Image")
+        # We add a USB keyboard device for the test.
+        self.emulator.boot(arch="aarch64",
+                           kernel=kern,
+                           kernel_cmdline=["console=ttyAMA0"],
+                           options=["-M", "virt", "-cpu", "cortex-a57", "-m", "256M",
+                                    "-initrd", img,
+                                    "-device", "usb-ehci,id=ehci",
+                                    "-device", "usb-kbd,bus=ehci.0"])
+        self.emulator.login()
+
+        # The lsusb example prints "idVendor:idProduct" for every
+        # device. We expect the Linux Foundation 2.0 root hub
+        # (1d6b:0002) and the QEMU USB keyboard (0627:0001).
+        output, exit_code = self.emulator.run(f"{self.examples_dir}/lsusb")
+        self.assertEqual(exit_code, 0)
+        self.assertIn("1d6b:0002", output)
+        self.assertIn("0627:0001", output)
+
+        # The testlibusb example opens every device and prints its
+        # descriptors. The keyboard should show up as a HID
+        # (bInterfaceClass 3) device.
+        output, exit_code = self.emulator.run(f"{self.examples_dir}/testlibusb -v")
+        self.assertEqual(exit_code, 0)
+        self.assertIn("bInterfaceClass:    3", "\n".join(output))

support/testing/tests/package/test_libusb_compat/linux-usb.fragment

@@ -0,0 +1,2 @@
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y