buildroot/support/testing/tests/package/test_mender.py

import os

import infra.basetest


class TestMender(infra.basetest.BRTest):
    config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
        """
        BR2_PACKAGE_MENDER=y
        BR2_TARGET_ROOTFS_CPIO=y
        BR2_ROOTFS_OVERLAY="{}"
        """.format(
           # overlay to add a fake 'fw_printenv', used by Mender
           infra.filepath("tests/package/test_mender/rootfs-overlay"))

    def test_run(self):
        cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
        self.emulator.boot(arch="armv5",
                           kernel="builtin",
                           options=["-initrd", cpio_file])
        self.emulator.login()

        # Check if the Daemon is running
        self.assertRunOk("ls /var/run/mender.pid")
        self.assertRunOk("ps aux | egrep [m]ender")

        # Check if a simple Mender command is correctly executed
        self.assertRunOk("mender -log-level debug show-artifact")
        self.assertRunOk("mender -log-level debug show-artifact | grep 'RUNTIME_TEST_ARTIFACT_NAME'")
        cmd = "mender show-artifact 2>&1 | grep -i 'err'"  # Check if no 'error' among the traces
        _, exit_code = self.emulator.run(cmd)
        self.assertEqual(exit_code, 1)